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2 | a8083063 | Iustin Pop | #
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3 | a8083063 | Iustin Pop | |
4 | a8083063 | Iustin Pop | # Copyright (C) 2006, 2007 Google Inc.
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5 | a8083063 | Iustin Pop | #
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6 | a8083063 | Iustin Pop | # This program is free software; you can redistribute it and/or modify
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7 | a8083063 | Iustin Pop | # it under the terms of the GNU General Public License as published by
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8 | a8083063 | Iustin Pop | # the Free Software Foundation; either version 2 of the License, or
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9 | a8083063 | Iustin Pop | # (at your option) any later version.
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10 | a8083063 | Iustin Pop | #
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11 | a8083063 | Iustin Pop | # This program is distributed in the hope that it will be useful, but
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12 | a8083063 | Iustin Pop | # WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | a8083063 | Iustin Pop | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | a8083063 | Iustin Pop | # General Public License for more details.
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15 | a8083063 | Iustin Pop | #
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16 | a8083063 | Iustin Pop | # You should have received a copy of the GNU General Public License
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17 | a8083063 | Iustin Pop | # along with this program; if not, write to the Free Software
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18 | a8083063 | Iustin Pop | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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19 | a8083063 | Iustin Pop | # 02110-1301, USA.
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20 | a8083063 | Iustin Pop | |
21 | a8083063 | Iustin Pop | |
22 | a8083063 | Iustin Pop | """Module dealing with command line parsing"""
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23 | a8083063 | Iustin Pop | |
24 | a8083063 | Iustin Pop | |
25 | a8083063 | Iustin Pop | import sys |
26 | a8083063 | Iustin Pop | import textwrap |
27 | a8083063 | Iustin Pop | import os.path |
28 | a8083063 | Iustin Pop | import copy |
29 | 685ee993 | Iustin Pop | import time |
30 | 46fbdd04 | Iustin Pop | import logging |
31 | 73702ee7 | Iustin Pop | from cStringIO import StringIO |
32 | a8083063 | Iustin Pop | |
33 | a8083063 | Iustin Pop | from ganeti import utils |
34 | a8083063 | Iustin Pop | from ganeti import errors |
35 | a8083063 | Iustin Pop | from ganeti import constants |
36 | 846baef9 | Iustin Pop | from ganeti import opcodes |
37 | ceab32dd | Iustin Pop | from ganeti import luxi |
38 | b33e986b | Iustin Pop | from ganeti import ssconf |
39 | 4331f6cd | Michael Hanselmann | from ganeti import rpc |
40 | a8083063 | Iustin Pop | |
41 | a8083063 | Iustin Pop | from optparse import (OptionParser, make_option, TitledHelpFormatter, |
42 | 38206f3c | Iustin Pop | Option, OptionValueError) |
43 | a8083063 | Iustin Pop | |
44 | 73b90123 | Michael Hanselmann | |
45 | ceab32dd | Iustin Pop | __all__ = ["DEBUG_OPT", "NOHDR_OPT", "SEP_OPT", "GenericMain", |
46 | af30b2fd | Michael Hanselmann | "SubmitOpCode", "GetClient", |
47 | a8469393 | Iustin Pop | "cli_option", "ikv_option", "keyval_option", |
48 | a8469393 | Iustin Pop | "GenerateTable", "AskUser", |
49 | a8083063 | Iustin Pop | "ARGS_NONE", "ARGS_FIXED", "ARGS_ATLEAST", "ARGS_ANY", "ARGS_ONE", |
50 | 94428652 | Iustin Pop | "USEUNITS_OPT", "FIELDS_OPT", "FORCE_OPT", "SUBMIT_OPT", |
51 | 810c50b7 | Iustin Pop | "ListTags", "AddTags", "RemoveTags", "TAG_SRC_OPT", |
52 | 94428652 | Iustin Pop | "FormatError", "SplitNodeOption", "SubmitOrSend", |
53 | 07cd723a | Iustin Pop | "JobSubmittedException", "FormatTimestamp", "ParseTimespec", |
54 | a5728081 | Guido Trotter | "ToStderr", "ToStdout", "UsesRPC", |
55 | ec79568d | Iustin Pop | "GetOnlineNodes", "JobExecutor", "SYNC_OPT", |
56 | 846baef9 | Iustin Pop | ] |
57 | 846baef9 | Iustin Pop | |
58 | 846baef9 | Iustin Pop | |
59 | 73b90123 | Michael Hanselmann | |
60 | 846baef9 | Iustin Pop | def _ExtractTagsObject(opts, args): |
61 | 846baef9 | Iustin Pop | """Extract the tag type object.
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62 | 846baef9 | Iustin Pop |
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63 | 846baef9 | Iustin Pop | Note that this function will modify its args parameter.
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64 | 846baef9 | Iustin Pop |
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65 | 846baef9 | Iustin Pop | """
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66 | 846baef9 | Iustin Pop | if not hasattr(opts, "tag_type"): |
67 | 846baef9 | Iustin Pop | raise errors.ProgrammerError("tag_type not passed to _ExtractTagsObject") |
68 | 846baef9 | Iustin Pop | kind = opts.tag_type |
69 | 846baef9 | Iustin Pop | if kind == constants.TAG_CLUSTER:
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70 | 846baef9 | Iustin Pop | retval = kind, kind |
71 | 846baef9 | Iustin Pop | elif kind == constants.TAG_NODE or kind == constants.TAG_INSTANCE: |
72 | 846baef9 | Iustin Pop | if not args: |
73 | 0c434948 | Iustin Pop | raise errors.OpPrereqError("no arguments passed to the command") |
74 | 846baef9 | Iustin Pop | name = args.pop(0)
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75 | 846baef9 | Iustin Pop | retval = kind, name |
76 | 846baef9 | Iustin Pop | else:
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77 | 846baef9 | Iustin Pop | raise errors.ProgrammerError("Unhandled tag type '%s'" % kind) |
78 | 846baef9 | Iustin Pop | return retval
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79 | 846baef9 | Iustin Pop | |
80 | 846baef9 | Iustin Pop | |
81 | 810c50b7 | Iustin Pop | def _ExtendTags(opts, args): |
82 | 810c50b7 | Iustin Pop | """Extend the args if a source file has been given.
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83 | 810c50b7 | Iustin Pop |
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84 | 810c50b7 | Iustin Pop | This function will extend the tags with the contents of the file
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85 | 810c50b7 | Iustin Pop | passed in the 'tags_source' attribute of the opts parameter. A file
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86 | 810c50b7 | Iustin Pop | named '-' will be replaced by stdin.
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87 | 810c50b7 | Iustin Pop |
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88 | 810c50b7 | Iustin Pop | """
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89 | 810c50b7 | Iustin Pop | fname = opts.tags_source |
90 | 810c50b7 | Iustin Pop | if fname is None: |
91 | 810c50b7 | Iustin Pop | return
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92 | 810c50b7 | Iustin Pop | if fname == "-": |
93 | 810c50b7 | Iustin Pop | new_fh = sys.stdin |
94 | 810c50b7 | Iustin Pop | else:
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95 | 810c50b7 | Iustin Pop | new_fh = open(fname, "r") |
96 | 810c50b7 | Iustin Pop | new_data = [] |
97 | 810c50b7 | Iustin Pop | try:
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98 | 810c50b7 | Iustin Pop | # we don't use the nice 'new_data = [line.strip() for line in fh]'
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99 | 810c50b7 | Iustin Pop | # because of python bug 1633941
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100 | 810c50b7 | Iustin Pop | while True: |
101 | 810c50b7 | Iustin Pop | line = new_fh.readline() |
102 | 810c50b7 | Iustin Pop | if not line: |
103 | 810c50b7 | Iustin Pop | break
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104 | 810c50b7 | Iustin Pop | new_data.append(line.strip()) |
105 | 810c50b7 | Iustin Pop | finally:
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106 | 810c50b7 | Iustin Pop | new_fh.close() |
107 | 810c50b7 | Iustin Pop | args.extend(new_data) |
108 | 810c50b7 | Iustin Pop | |
109 | 810c50b7 | Iustin Pop | |
110 | 846baef9 | Iustin Pop | def ListTags(opts, args): |
111 | 846baef9 | Iustin Pop | """List the tags on a given object.
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112 | 846baef9 | Iustin Pop |
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113 | 846baef9 | Iustin Pop | This is a generic implementation that knows how to deal with all
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114 | 846baef9 | Iustin Pop | three cases of tag objects (cluster, node, instance). The opts
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115 | 846baef9 | Iustin Pop | argument is expected to contain a tag_type field denoting what
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116 | 846baef9 | Iustin Pop | object type we work on.
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117 | 846baef9 | Iustin Pop |
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118 | 846baef9 | Iustin Pop | """
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119 | 846baef9 | Iustin Pop | kind, name = _ExtractTagsObject(opts, args) |
120 | 846baef9 | Iustin Pop | op = opcodes.OpGetTags(kind=kind, name=name) |
121 | 846baef9 | Iustin Pop | result = SubmitOpCode(op) |
122 | 846baef9 | Iustin Pop | result = list(result)
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123 | 846baef9 | Iustin Pop | result.sort() |
124 | 846baef9 | Iustin Pop | for tag in result: |
125 | 73b90123 | Michael Hanselmann | ToStdout(tag) |
126 | 846baef9 | Iustin Pop | |
127 | 846baef9 | Iustin Pop | |
128 | 846baef9 | Iustin Pop | def AddTags(opts, args): |
129 | 846baef9 | Iustin Pop | """Add tags on a given object.
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130 | 846baef9 | Iustin Pop |
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131 | 846baef9 | Iustin Pop | This is a generic implementation that knows how to deal with all
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132 | 846baef9 | Iustin Pop | three cases of tag objects (cluster, node, instance). The opts
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133 | 846baef9 | Iustin Pop | argument is expected to contain a tag_type field denoting what
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134 | 846baef9 | Iustin Pop | object type we work on.
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135 | 846baef9 | Iustin Pop |
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136 | 846baef9 | Iustin Pop | """
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137 | 846baef9 | Iustin Pop | kind, name = _ExtractTagsObject(opts, args) |
138 | 810c50b7 | Iustin Pop | _ExtendTags(opts, args) |
139 | 846baef9 | Iustin Pop | if not args: |
140 | 846baef9 | Iustin Pop | raise errors.OpPrereqError("No tags to be added") |
141 | 846baef9 | Iustin Pop | op = opcodes.OpAddTags(kind=kind, name=name, tags=args) |
142 | 846baef9 | Iustin Pop | SubmitOpCode(op) |
143 | 846baef9 | Iustin Pop | |
144 | 846baef9 | Iustin Pop | |
145 | 846baef9 | Iustin Pop | def RemoveTags(opts, args): |
146 | 846baef9 | Iustin Pop | """Remove tags from a given object.
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147 | 846baef9 | Iustin Pop |
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148 | 846baef9 | Iustin Pop | This is a generic implementation that knows how to deal with all
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149 | 846baef9 | Iustin Pop | three cases of tag objects (cluster, node, instance). The opts
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150 | 846baef9 | Iustin Pop | argument is expected to contain a tag_type field denoting what
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151 | 846baef9 | Iustin Pop | object type we work on.
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152 | 846baef9 | Iustin Pop |
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153 | 846baef9 | Iustin Pop | """
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154 | 846baef9 | Iustin Pop | kind, name = _ExtractTagsObject(opts, args) |
155 | 810c50b7 | Iustin Pop | _ExtendTags(opts, args) |
156 | 846baef9 | Iustin Pop | if not args: |
157 | 846baef9 | Iustin Pop | raise errors.OpPrereqError("No tags to be removed") |
158 | 846baef9 | Iustin Pop | op = opcodes.OpDelTags(kind=kind, name=name, tags=args) |
159 | 846baef9 | Iustin Pop | SubmitOpCode(op) |
160 | 846baef9 | Iustin Pop | |
161 | a8083063 | Iustin Pop | |
162 | a8083063 | Iustin Pop | DEBUG_OPT = make_option("-d", "--debug", default=False, |
163 | a8083063 | Iustin Pop | action="store_true",
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164 | a8083063 | Iustin Pop | help="Turn debugging on")
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165 | a8083063 | Iustin Pop | |
166 | a8083063 | Iustin Pop | NOHDR_OPT = make_option("--no-headers", default=False, |
167 | a8083063 | Iustin Pop | action="store_true", dest="no_headers", |
168 | a8083063 | Iustin Pop | help="Don't display column headers")
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169 | a8083063 | Iustin Pop | |
170 | 137161c9 | Michael Hanselmann | SEP_OPT = make_option("--separator", default=None, |
171 | a8083063 | Iustin Pop | action="store", dest="separator", |
172 | a8083063 | Iustin Pop | help="Separator between output fields"
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173 | a8083063 | Iustin Pop | " (defaults to one space)")
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174 | a8083063 | Iustin Pop | |
175 | 9fbfbb7b | Iustin Pop | USEUNITS_OPT = make_option("--units", default=None, |
176 | 9fbfbb7b | Iustin Pop | dest="units", choices=('h', 'm', 'g', 't'), |
177 | 9fbfbb7b | Iustin Pop | help="Specify units for output (one of hmgt)")
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178 | a8083063 | Iustin Pop | |
179 | dcb93971 | Michael Hanselmann | FIELDS_OPT = make_option("-o", "--output", dest="output", action="store", |
180 | d8a4b51d | Iustin Pop | type="string", help="Comma separated list of" |
181 | d8a4b51d | Iustin Pop | " output fields",
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182 | dcb93971 | Michael Hanselmann | metavar="FIELDS")
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183 | dcb93971 | Michael Hanselmann | |
184 | fe7b0351 | Michael Hanselmann | FORCE_OPT = make_option("-f", "--force", dest="force", action="store_true", |
185 | fe7b0351 | Michael Hanselmann | default=False, help="Force the operation") |
186 | fe7b0351 | Michael Hanselmann | |
187 | 810c50b7 | Iustin Pop | TAG_SRC_OPT = make_option("--from", dest="tags_source", |
188 | 810c50b7 | Iustin Pop | default=None, help="File with tag names") |
189 | 810c50b7 | Iustin Pop | |
190 | 94428652 | Iustin Pop | SUBMIT_OPT = make_option("--submit", dest="submit_only", |
191 | 94428652 | Iustin Pop | default=False, action="store_true", |
192 | 94428652 | Iustin Pop | help="Submit the job and return the job ID, but"
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193 | 94428652 | Iustin Pop | " don't wait for the job to finish")
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194 | 94428652 | Iustin Pop | |
195 | ec79568d | Iustin Pop | SYNC_OPT = make_option("--sync", dest="do_locking", |
196 | ec79568d | Iustin Pop | default=False, action="store_true", |
197 | ec79568d | Iustin Pop | help="Grab locks while doing the queries"
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198 | ec79568d | Iustin Pop | " in order to ensure more consistent results")
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199 | ec79568d | Iustin Pop | |
200 | 60d49723 | Michael Hanselmann | |
201 | fe267188 | Iustin Pop | def ARGS_FIXED(val): # pylint: disable-msg=C0103 |
202 | a8083063 | Iustin Pop | """Macro-like function denoting a fixed number of arguments"""
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203 | a8083063 | Iustin Pop | return -val
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204 | a8083063 | Iustin Pop | |
205 | a8083063 | Iustin Pop | |
206 | fe267188 | Iustin Pop | def ARGS_ATLEAST(val): # pylint: disable-msg=C0103 |
207 | a8083063 | Iustin Pop | """Macro-like function denoting a minimum number of arguments"""
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208 | a8083063 | Iustin Pop | return val
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209 | a8083063 | Iustin Pop | |
210 | a8083063 | Iustin Pop | |
211 | a8083063 | Iustin Pop | ARGS_NONE = None
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212 | a8083063 | Iustin Pop | ARGS_ONE = ARGS_FIXED(1)
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213 | a8083063 | Iustin Pop | ARGS_ANY = ARGS_ATLEAST(0)
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214 | a8083063 | Iustin Pop | |
215 | a8083063 | Iustin Pop | |
216 | a8083063 | Iustin Pop | def check_unit(option, opt, value): |
217 | 65fe4693 | Iustin Pop | """OptParsers custom converter for units.
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218 | 65fe4693 | Iustin Pop |
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219 | 65fe4693 | Iustin Pop | """
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220 | a8083063 | Iustin Pop | try:
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221 | a8083063 | Iustin Pop | return utils.ParseUnit(value)
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222 | a8083063 | Iustin Pop | except errors.UnitParseError, err:
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223 | 3ecf6786 | Iustin Pop | raise OptionValueError("option %s: %s" % (opt, err)) |
224 | a8083063 | Iustin Pop | |
225 | a8083063 | Iustin Pop | |
226 | a8083063 | Iustin Pop | class CliOption(Option): |
227 | 65fe4693 | Iustin Pop | """Custom option class for optparse.
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228 | 65fe4693 | Iustin Pop |
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229 | 65fe4693 | Iustin Pop | """
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230 | a8083063 | Iustin Pop | TYPES = Option.TYPES + ("unit",)
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231 | a8083063 | Iustin Pop | TYPE_CHECKER = copy.copy(Option.TYPE_CHECKER) |
232 | a8083063 | Iustin Pop | TYPE_CHECKER["unit"] = check_unit
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233 | a8083063 | Iustin Pop | |
234 | a8083063 | Iustin Pop | |
235 | a8469393 | Iustin Pop | def _SplitKeyVal(opt, data): |
236 | a8469393 | Iustin Pop | """Convert a KeyVal string into a dict.
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237 | a8469393 | Iustin Pop |
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238 | a8469393 | Iustin Pop | This function will convert a key=val[,...] string into a dict. Empty
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239 | a8469393 | Iustin Pop | values will be converted specially: keys which have the prefix 'no_'
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240 | a8469393 | Iustin Pop | will have the value=False and the prefix stripped, the others will
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241 | a8469393 | Iustin Pop | have value=True.
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242 | a8469393 | Iustin Pop |
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243 | a8469393 | Iustin Pop | @type opt: string
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244 | a8469393 | Iustin Pop | @param opt: a string holding the option name for which we process the
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245 | a8469393 | Iustin Pop | data, used in building error messages
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246 | a8469393 | Iustin Pop | @type data: string
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247 | a8469393 | Iustin Pop | @param data: a string of the format key=val,key=val,...
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248 | a8469393 | Iustin Pop | @rtype: dict
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249 | a8469393 | Iustin Pop | @return: {key=val, key=val}
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250 | a8469393 | Iustin Pop | @raises errors.ParameterError: if there are duplicate keys
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251 | a8469393 | Iustin Pop |
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252 | a8469393 | Iustin Pop | """
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253 | a8469393 | Iustin Pop | NO_PREFIX = "no_"
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254 | fcd62d84 | Iustin Pop | UN_PREFIX = "-"
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255 | a8469393 | Iustin Pop | kv_dict = {} |
256 | a8469393 | Iustin Pop | for elem in data.split(","): |
257 | a8469393 | Iustin Pop | if "=" in elem: |
258 | a8469393 | Iustin Pop | key, val = elem.split("=", 1) |
259 | a8469393 | Iustin Pop | else:
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260 | a8469393 | Iustin Pop | if elem.startswith(NO_PREFIX):
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261 | a8469393 | Iustin Pop | key, val = elem[len(NO_PREFIX):], False |
262 | fcd62d84 | Iustin Pop | elif elem.startswith(UN_PREFIX):
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263 | fcd62d84 | Iustin Pop | key, val = elem[len(UN_PREFIX):], None |
264 | a8469393 | Iustin Pop | else:
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265 | a8469393 | Iustin Pop | key, val = elem, True
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266 | a8469393 | Iustin Pop | if key in kv_dict: |
267 | a8469393 | Iustin Pop | raise errors.ParameterError("Duplicate key '%s' in option %s" % |
268 | a8469393 | Iustin Pop | (key, opt)) |
269 | a8469393 | Iustin Pop | kv_dict[key] = val |
270 | a8469393 | Iustin Pop | return kv_dict
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271 | a8469393 | Iustin Pop | |
272 | a8469393 | Iustin Pop | |
273 | a8469393 | Iustin Pop | def check_ident_key_val(option, opt, value): |
274 | a8469393 | Iustin Pop | """Custom parser for the IdentKeyVal option type.
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275 | a8469393 | Iustin Pop |
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276 | a8469393 | Iustin Pop | """
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277 | a8469393 | Iustin Pop | if ":" not in value: |
278 | a8469393 | Iustin Pop | retval = (value, {}) |
279 | a8469393 | Iustin Pop | else:
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280 | a8469393 | Iustin Pop | ident, rest = value.split(":", 1) |
281 | a8469393 | Iustin Pop | kv_dict = _SplitKeyVal(opt, rest) |
282 | a8469393 | Iustin Pop | retval = (ident, kv_dict) |
283 | a8469393 | Iustin Pop | return retval
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284 | a8469393 | Iustin Pop | |
285 | a8469393 | Iustin Pop | |
286 | a8469393 | Iustin Pop | class IdentKeyValOption(Option): |
287 | a8469393 | Iustin Pop | """Custom option class for ident:key=val,key=val options.
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288 | a8469393 | Iustin Pop |
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289 | a8469393 | Iustin Pop | This will store the parsed values as a tuple (ident, {key: val}). As
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290 | a8469393 | Iustin Pop | such, multiple uses of this option via action=append is possible.
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291 | a8469393 | Iustin Pop |
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292 | a8469393 | Iustin Pop | """
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293 | a8469393 | Iustin Pop | TYPES = Option.TYPES + ("identkeyval",)
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294 | a8469393 | Iustin Pop | TYPE_CHECKER = copy.copy(Option.TYPE_CHECKER) |
295 | a8469393 | Iustin Pop | TYPE_CHECKER["identkeyval"] = check_ident_key_val
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296 | a8469393 | Iustin Pop | |
297 | a8469393 | Iustin Pop | |
298 | a8469393 | Iustin Pop | def check_key_val(option, opt, value): |
299 | a8469393 | Iustin Pop | """Custom parser for the KeyVal option type.
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300 | a8469393 | Iustin Pop |
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301 | a8469393 | Iustin Pop | """
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302 | a8469393 | Iustin Pop | return _SplitKeyVal(opt, value)
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303 | a8469393 | Iustin Pop | |
304 | a8469393 | Iustin Pop | |
305 | a8469393 | Iustin Pop | class KeyValOption(Option): |
306 | a8469393 | Iustin Pop | """Custom option class for key=val,key=val options.
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307 | a8469393 | Iustin Pop |
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308 | a8469393 | Iustin Pop | This will store the parsed values as a dict {key: val}.
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309 | a8469393 | Iustin Pop |
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310 | a8469393 | Iustin Pop | """
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311 | a8469393 | Iustin Pop | TYPES = Option.TYPES + ("keyval",)
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312 | a8469393 | Iustin Pop | TYPE_CHECKER = copy.copy(Option.TYPE_CHECKER) |
313 | a8469393 | Iustin Pop | TYPE_CHECKER["keyval"] = check_key_val
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314 | a8469393 | Iustin Pop | |
315 | a8469393 | Iustin Pop | |
316 | a8083063 | Iustin Pop | # optparse.py sets make_option, so we do it for our own option class, too
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317 | a8083063 | Iustin Pop | cli_option = CliOption |
318 | a8469393 | Iustin Pop | ikv_option = IdentKeyValOption |
319 | a8469393 | Iustin Pop | keyval_option = KeyValOption |
320 | a8083063 | Iustin Pop | |
321 | a8083063 | Iustin Pop | |
322 | de47cf8f | Guido Trotter | def _ParseArgs(argv, commands, aliases): |
323 | c41eea6e | Iustin Pop | """Parser for the command line arguments.
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324 | a8083063 | Iustin Pop |
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325 | 5bbd3f7f | Michael Hanselmann | This function parses the arguments and returns the function which
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326 | c41eea6e | Iustin Pop | must be executed together with its (modified) arguments.
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327 | a8083063 | Iustin Pop |
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328 | c41eea6e | Iustin Pop | @param argv: the command line
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329 | c41eea6e | Iustin Pop | @param commands: dictionary with special contents, see the design
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330 | c41eea6e | Iustin Pop | doc for cmdline handling
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331 | c41eea6e | Iustin Pop | @param aliases: dictionary with command aliases {'alias': 'target, ...}
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332 | 098c0958 | Michael Hanselmann |
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333 | a8083063 | Iustin Pop | """
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334 | a8083063 | Iustin Pop | if len(argv) == 0: |
335 | a8083063 | Iustin Pop | binary = "<command>"
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336 | a8083063 | Iustin Pop | else:
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337 | a8083063 | Iustin Pop | binary = argv[0].split("/")[-1] |
338 | a8083063 | Iustin Pop | |
339 | a8083063 | Iustin Pop | if len(argv) > 1 and argv[1] == "--version": |
340 | 73b90123 | Michael Hanselmann | ToStdout("%s (ganeti) %s", binary, constants.RELEASE_VERSION)
|
341 | a8083063 | Iustin Pop | # Quit right away. That way we don't have to care about this special
|
342 | a8083063 | Iustin Pop | # argument. optparse.py does it the same.
|
343 | a8083063 | Iustin Pop | sys.exit(0)
|
344 | a8083063 | Iustin Pop | |
345 | de47cf8f | Guido Trotter | if len(argv) < 2 or not (argv[1] in commands or |
346 | 70a35b6f | Guido Trotter | argv[1] in aliases): |
347 | a8083063 | Iustin Pop | # let's do a nice thing
|
348 | a8083063 | Iustin Pop | sortedcmds = commands.keys() |
349 | a8083063 | Iustin Pop | sortedcmds.sort() |
350 | 73b90123 | Michael Hanselmann | |
351 | 73b90123 | Michael Hanselmann | ToStdout("Usage: %s {command} [options...] [argument...]", binary)
|
352 | 73b90123 | Michael Hanselmann | ToStdout("%s <command> --help to see details, or man %s", binary, binary)
|
353 | 73b90123 | Michael Hanselmann | ToStdout("")
|
354 | 73b90123 | Michael Hanselmann | |
355 | a8083063 | Iustin Pop | # compute the max line length for cmd + usage
|
356 | 4e713df6 | Iustin Pop | mlen = max([len(" %s" % cmd) for cmd in commands]) |
357 | a8083063 | Iustin Pop | mlen = min(60, mlen) # should not get here... |
358 | 73b90123 | Michael Hanselmann | |
359 | a8083063 | Iustin Pop | # and format a nice command list
|
360 | 73b90123 | Michael Hanselmann | ToStdout("Commands:")
|
361 | a8083063 | Iustin Pop | for cmd in sortedcmds: |
362 | 4e713df6 | Iustin Pop | cmdstr = " %s" % (cmd,)
|
363 | 9a033156 | Iustin Pop | help_text = commands[cmd][4]
|
364 | 73b90123 | Michael Hanselmann | help_lines = textwrap.wrap(help_text, 79 - 3 - mlen) |
365 | 73b90123 | Michael Hanselmann | ToStdout("%-*s - %s", mlen, cmdstr, help_lines.pop(0)) |
366 | a8083063 | Iustin Pop | for line in help_lines: |
367 | 73b90123 | Michael Hanselmann | ToStdout("%-*s %s", mlen, "", line) |
368 | 73b90123 | Michael Hanselmann | |
369 | 73b90123 | Michael Hanselmann | ToStdout("")
|
370 | 73b90123 | Michael Hanselmann | |
371 | a8083063 | Iustin Pop | return None, None, None |
372 | de47cf8f | Guido Trotter | |
373 | de47cf8f | Guido Trotter | # get command, unalias it, and look it up in commands
|
374 | a8083063 | Iustin Pop | cmd = argv.pop(1)
|
375 | de47cf8f | Guido Trotter | if cmd in aliases: |
376 | de47cf8f | Guido Trotter | if cmd in commands: |
377 | de47cf8f | Guido Trotter | raise errors.ProgrammerError("Alias '%s' overrides an existing" |
378 | de47cf8f | Guido Trotter | " command" % cmd)
|
379 | de47cf8f | Guido Trotter | |
380 | de47cf8f | Guido Trotter | if aliases[cmd] not in commands: |
381 | de47cf8f | Guido Trotter | raise errors.ProgrammerError("Alias '%s' maps to non-existing" |
382 | de47cf8f | Guido Trotter | " command '%s'" % (cmd, aliases[cmd]))
|
383 | de47cf8f | Guido Trotter | |
384 | de47cf8f | Guido Trotter | cmd = aliases[cmd] |
385 | de47cf8f | Guido Trotter | |
386 | a8083063 | Iustin Pop | func, nargs, parser_opts, usage, description = commands[cmd] |
387 | a8083063 | Iustin Pop | parser = OptionParser(option_list=parser_opts, |
388 | a8083063 | Iustin Pop | description=description, |
389 | a8083063 | Iustin Pop | formatter=TitledHelpFormatter(), |
390 | a8083063 | Iustin Pop | usage="%%prog %s %s" % (cmd, usage))
|
391 | a8083063 | Iustin Pop | parser.disable_interspersed_args() |
392 | a8083063 | Iustin Pop | options, args = parser.parse_args() |
393 | a8083063 | Iustin Pop | if nargs is None: |
394 | a8083063 | Iustin Pop | if len(args) != 0: |
395 | 73b90123 | Michael Hanselmann | ToStderr("Error: Command %s expects no arguments", cmd)
|
396 | a8083063 | Iustin Pop | return None, None, None |
397 | a8083063 | Iustin Pop | elif nargs < 0 and len(args) != -nargs: |
398 | 73b90123 | Michael Hanselmann | ToStderr("Error: Command %s expects %d argument(s)", cmd, -nargs)
|
399 | a8083063 | Iustin Pop | return None, None, None |
400 | a8083063 | Iustin Pop | elif nargs >= 0 and len(args) < nargs: |
401 | 73b90123 | Michael Hanselmann | ToStderr("Error: Command %s expects at least %d argument(s)", cmd, nargs)
|
402 | a8083063 | Iustin Pop | return None, None, None |
403 | a8083063 | Iustin Pop | |
404 | a8083063 | Iustin Pop | return func, options, args
|
405 | a8083063 | Iustin Pop | |
406 | a8083063 | Iustin Pop | |
407 | 60d49723 | Michael Hanselmann | def SplitNodeOption(value): |
408 | 60d49723 | Michael Hanselmann | """Splits the value of a --node option.
|
409 | 60d49723 | Michael Hanselmann |
|
410 | 60d49723 | Michael Hanselmann | """
|
411 | 60d49723 | Michael Hanselmann | if value and ':' in value: |
412 | 60d49723 | Michael Hanselmann | return value.split(':', 1) |
413 | 60d49723 | Michael Hanselmann | else:
|
414 | 60d49723 | Michael Hanselmann | return (value, None) |
415 | 60d49723 | Michael Hanselmann | |
416 | 60d49723 | Michael Hanselmann | |
417 | 4331f6cd | Michael Hanselmann | def UsesRPC(fn): |
418 | 4331f6cd | Michael Hanselmann | def wrapper(*args, **kwargs): |
419 | 4331f6cd | Michael Hanselmann | rpc.Init() |
420 | 4331f6cd | Michael Hanselmann | try:
|
421 | 4331f6cd | Michael Hanselmann | return fn(*args, **kwargs)
|
422 | 4331f6cd | Michael Hanselmann | finally:
|
423 | 4331f6cd | Michael Hanselmann | rpc.Shutdown() |
424 | 4331f6cd | Michael Hanselmann | return wrapper
|
425 | 4331f6cd | Michael Hanselmann | |
426 | 4331f6cd | Michael Hanselmann | |
427 | 47988778 | Iustin Pop | def AskUser(text, choices=None): |
428 | 47988778 | Iustin Pop | """Ask the user a question.
|
429 | a8083063 | Iustin Pop |
|
430 | c41eea6e | Iustin Pop | @param text: the question to ask
|
431 | a8083063 | Iustin Pop |
|
432 | c41eea6e | Iustin Pop | @param choices: list with elements tuples (input_char, return_value,
|
433 | c41eea6e | Iustin Pop | description); if not given, it will default to: [('y', True,
|
434 | c41eea6e | Iustin Pop | 'Perform the operation'), ('n', False, 'Do no do the operation')];
|
435 | c41eea6e | Iustin Pop | note that the '?' char is reserved for help
|
436 | 47988778 | Iustin Pop |
|
437 | c41eea6e | Iustin Pop | @return: one of the return values from the choices list; if input is
|
438 | c41eea6e | Iustin Pop | not possible (i.e. not running with a tty, we return the last
|
439 | c41eea6e | Iustin Pop | entry from the list
|
440 | a8083063 | Iustin Pop |
|
441 | a8083063 | Iustin Pop | """
|
442 | 47988778 | Iustin Pop | if choices is None: |
443 | 47988778 | Iustin Pop | choices = [('y', True, 'Perform the operation'), |
444 | 47988778 | Iustin Pop | ('n', False, 'Do not perform the operation')] |
445 | 47988778 | Iustin Pop | if not choices or not isinstance(choices, list): |
446 | 5bbd3f7f | Michael Hanselmann | raise errors.ProgrammerError("Invalid choices argument to AskUser") |
447 | 47988778 | Iustin Pop | for entry in choices: |
448 | 47988778 | Iustin Pop | if not isinstance(entry, tuple) or len(entry) < 3 or entry[0] == '?': |
449 | 5bbd3f7f | Michael Hanselmann | raise errors.ProgrammerError("Invalid choices element to AskUser") |
450 | 47988778 | Iustin Pop | |
451 | 47988778 | Iustin Pop | answer = choices[-1][1] |
452 | 47988778 | Iustin Pop | new_text = [] |
453 | 47988778 | Iustin Pop | for line in text.splitlines(): |
454 | 47988778 | Iustin Pop | new_text.append(textwrap.fill(line, 70, replace_whitespace=False)) |
455 | 47988778 | Iustin Pop | text = "\n".join(new_text)
|
456 | a8083063 | Iustin Pop | try:
|
457 | 3023170f | Iustin Pop | f = file("/dev/tty", "a+") |
458 | a8083063 | Iustin Pop | except IOError: |
459 | 47988778 | Iustin Pop | return answer
|
460 | a8083063 | Iustin Pop | try:
|
461 | 47988778 | Iustin Pop | chars = [entry[0] for entry in choices] |
462 | 47988778 | Iustin Pop | chars[-1] = "[%s]" % chars[-1] |
463 | 47988778 | Iustin Pop | chars.append('?')
|
464 | 47988778 | Iustin Pop | maps = dict([(entry[0], entry[1]) for entry in choices]) |
465 | 47988778 | Iustin Pop | while True: |
466 | 47988778 | Iustin Pop | f.write(text) |
467 | 47988778 | Iustin Pop | f.write('\n')
|
468 | 47988778 | Iustin Pop | f.write("/".join(chars))
|
469 | 47988778 | Iustin Pop | f.write(": ")
|
470 | 47988778 | Iustin Pop | line = f.readline(2).strip().lower()
|
471 | 47988778 | Iustin Pop | if line in maps: |
472 | 47988778 | Iustin Pop | answer = maps[line] |
473 | 47988778 | Iustin Pop | break
|
474 | 47988778 | Iustin Pop | elif line == '?': |
475 | 47988778 | Iustin Pop | for entry in choices: |
476 | 47988778 | Iustin Pop | f.write(" %s - %s\n" % (entry[0], entry[2])) |
477 | 47988778 | Iustin Pop | f.write("\n")
|
478 | 47988778 | Iustin Pop | continue
|
479 | a8083063 | Iustin Pop | finally:
|
480 | a8083063 | Iustin Pop | f.close() |
481 | a8083063 | Iustin Pop | return answer
|
482 | a8083063 | Iustin Pop | |
483 | a8083063 | Iustin Pop | |
484 | e9d741b6 | Iustin Pop | class JobSubmittedException(Exception): |
485 | e9d741b6 | Iustin Pop | """Job was submitted, client should exit.
|
486 | e9d741b6 | Iustin Pop |
|
487 | e9d741b6 | Iustin Pop | This exception has one argument, the ID of the job that was
|
488 | e9d741b6 | Iustin Pop | submitted. The handler should print this ID.
|
489 | e9d741b6 | Iustin Pop |
|
490 | e9d741b6 | Iustin Pop | This is not an error, just a structured way to exit from clients.
|
491 | e9d741b6 | Iustin Pop |
|
492 | e9d741b6 | Iustin Pop | """
|
493 | e9d741b6 | Iustin Pop | |
494 | e9d741b6 | Iustin Pop | |
495 | 0a1e74d9 | Iustin Pop | def SendJob(ops, cl=None): |
496 | 0a1e74d9 | Iustin Pop | """Function to submit an opcode without waiting for the results.
|
497 | a8083063 | Iustin Pop |
|
498 | 0a1e74d9 | Iustin Pop | @type ops: list
|
499 | 0a1e74d9 | Iustin Pop | @param ops: list of opcodes
|
500 | 0a1e74d9 | Iustin Pop | @type cl: luxi.Client
|
501 | 0a1e74d9 | Iustin Pop | @param cl: the luxi client to use for communicating with the master;
|
502 | 0a1e74d9 | Iustin Pop | if None, a new client will be created
|
503 | a8083063 | Iustin Pop |
|
504 | a8083063 | Iustin Pop | """
|
505 | e2212007 | Iustin Pop | if cl is None: |
506 | b33e986b | Iustin Pop | cl = GetClient() |
507 | 685ee993 | Iustin Pop | |
508 | 0a1e74d9 | Iustin Pop | job_id = cl.SubmitJob(ops) |
509 | 0a1e74d9 | Iustin Pop | |
510 | 0a1e74d9 | Iustin Pop | return job_id
|
511 | 0a1e74d9 | Iustin Pop | |
512 | 0a1e74d9 | Iustin Pop | |
513 | 281606c1 | Michael Hanselmann | def PollJob(job_id, cl=None, feedback_fn=None): |
514 | 0a1e74d9 | Iustin Pop | """Function to poll for the result of a job.
|
515 | 0a1e74d9 | Iustin Pop |
|
516 | 0a1e74d9 | Iustin Pop | @type job_id: job identified
|
517 | 0a1e74d9 | Iustin Pop | @param job_id: the job to poll for results
|
518 | 0a1e74d9 | Iustin Pop | @type cl: luxi.Client
|
519 | 0a1e74d9 | Iustin Pop | @param cl: the luxi client to use for communicating with the master;
|
520 | 0a1e74d9 | Iustin Pop | if None, a new client will be created
|
521 | 0a1e74d9 | Iustin Pop |
|
522 | 0a1e74d9 | Iustin Pop | """
|
523 | 0a1e74d9 | Iustin Pop | if cl is None: |
524 | 0a1e74d9 | Iustin Pop | cl = GetClient() |
525 | 685ee993 | Iustin Pop | |
526 | 6c5a7090 | Michael Hanselmann | prev_job_info = None
|
527 | 6c5a7090 | Michael Hanselmann | prev_logmsg_serial = None
|
528 | 6c5a7090 | Michael Hanselmann | |
529 | 685ee993 | Iustin Pop | while True: |
530 | 6c5a7090 | Michael Hanselmann | result = cl.WaitForJobChange(job_id, ["status"], prev_job_info,
|
531 | 6c5a7090 | Michael Hanselmann | prev_logmsg_serial) |
532 | 6c5a7090 | Michael Hanselmann | if not result: |
533 | 685ee993 | Iustin Pop | # job not found, go away!
|
534 | 0bbe448c | Michael Hanselmann | raise errors.JobLost("Job with id %s lost" % job_id) |
535 | 685ee993 | Iustin Pop | |
536 | 6c5a7090 | Michael Hanselmann | # Split result, a tuple of (field values, log entries)
|
537 | 6c5a7090 | Michael Hanselmann | (job_info, log_entries) = result |
538 | 6c5a7090 | Michael Hanselmann | (status, ) = job_info |
539 | 6c5a7090 | Michael Hanselmann | |
540 | 6c5a7090 | Michael Hanselmann | if log_entries:
|
541 | 6c5a7090 | Michael Hanselmann | for log_entry in log_entries: |
542 | 6c5a7090 | Michael Hanselmann | (serial, timestamp, _, message) = log_entry |
543 | 6c5a7090 | Michael Hanselmann | if callable(feedback_fn): |
544 | 6c5a7090 | Michael Hanselmann | feedback_fn(log_entry[1:])
|
545 | 6c5a7090 | Michael Hanselmann | else:
|
546 | 26f15862 | Iustin Pop | encoded = utils.SafeEncode(message) |
547 | 73b90123 | Michael Hanselmann | ToStdout("%s %s", time.ctime(utils.MergeTime(timestamp)), encoded)
|
548 | 6c5a7090 | Michael Hanselmann | prev_logmsg_serial = max(prev_logmsg_serial, serial)
|
549 | 6c5a7090 | Michael Hanselmann | |
550 | 0bbe448c | Michael Hanselmann | # TODO: Handle canceled and archived jobs
|
551 | fbf0262f | Michael Hanselmann | elif status in (constants.JOB_STATUS_SUCCESS, |
552 | fbf0262f | Michael Hanselmann | constants.JOB_STATUS_ERROR, |
553 | fbf0262f | Michael Hanselmann | constants.JOB_STATUS_CANCELING, |
554 | fbf0262f | Michael Hanselmann | constants.JOB_STATUS_CANCELED): |
555 | 685ee993 | Iustin Pop | break
|
556 | 6c5a7090 | Michael Hanselmann | |
557 | 6c5a7090 | Michael Hanselmann | prev_job_info = job_info |
558 | 685ee993 | Iustin Pop | |
559 | 0e050889 | Iustin Pop | jobs = cl.QueryJobs([job_id], ["status", "opstatus", "opresult"]) |
560 | 0bbe448c | Michael Hanselmann | if not jobs: |
561 | 0bbe448c | Michael Hanselmann | raise errors.JobLost("Job with id %s lost" % job_id) |
562 | 685ee993 | Iustin Pop | |
563 | 0e050889 | Iustin Pop | status, opstatus, result = jobs[0]
|
564 | 0bbe448c | Michael Hanselmann | if status == constants.JOB_STATUS_SUCCESS:
|
565 | 53c04d04 | Iustin Pop | return result
|
566 | fbf0262f | Michael Hanselmann | elif status in (constants.JOB_STATUS_CANCELING, |
567 | fbf0262f | Michael Hanselmann | constants.JOB_STATUS_CANCELED): |
568 | fbf0262f | Michael Hanselmann | raise errors.OpExecError("Job was canceled") |
569 | 0bbe448c | Michael Hanselmann | else:
|
570 | 0e050889 | Iustin Pop | has_ok = False
|
571 | 0e050889 | Iustin Pop | for idx, (status, msg) in enumerate(zip(opstatus, result)): |
572 | 0e050889 | Iustin Pop | if status == constants.OP_STATUS_SUCCESS:
|
573 | 0e050889 | Iustin Pop | has_ok = True
|
574 | 0e050889 | Iustin Pop | elif status == constants.OP_STATUS_ERROR:
|
575 | e6345c35 | Iustin Pop | errors.MaybeRaise(msg) |
576 | 0e050889 | Iustin Pop | if has_ok:
|
577 | 0e050889 | Iustin Pop | raise errors.OpExecError("partial failure (opcode %d): %s" % |
578 | 0e050889 | Iustin Pop | (idx, msg)) |
579 | 0e050889 | Iustin Pop | else:
|
580 | 0e050889 | Iustin Pop | raise errors.OpExecError(str(msg)) |
581 | 0e050889 | Iustin Pop | # default failure mode
|
582 | 0bbe448c | Michael Hanselmann | raise errors.OpExecError(result)
|
583 | ceab32dd | Iustin Pop | |
584 | ceab32dd | Iustin Pop | |
585 | 0a1e74d9 | Iustin Pop | def SubmitOpCode(op, cl=None, feedback_fn=None): |
586 | 0a1e74d9 | Iustin Pop | """Legacy function to submit an opcode.
|
587 | 0a1e74d9 | Iustin Pop |
|
588 | 0a1e74d9 | Iustin Pop | This is just a simple wrapper over the construction of the processor
|
589 | 0a1e74d9 | Iustin Pop | instance. It should be extended to better handle feedback and
|
590 | 0a1e74d9 | Iustin Pop | interaction functions.
|
591 | 0a1e74d9 | Iustin Pop |
|
592 | 0a1e74d9 | Iustin Pop | """
|
593 | 0a1e74d9 | Iustin Pop | if cl is None: |
594 | 0a1e74d9 | Iustin Pop | cl = GetClient() |
595 | 0a1e74d9 | Iustin Pop | |
596 | 0a1e74d9 | Iustin Pop | job_id = SendJob([op], cl) |
597 | 0a1e74d9 | Iustin Pop | |
598 | 53c04d04 | Iustin Pop | op_results = PollJob(job_id, cl=cl, feedback_fn=feedback_fn) |
599 | 53c04d04 | Iustin Pop | |
600 | 53c04d04 | Iustin Pop | return op_results[0] |
601 | 0a1e74d9 | Iustin Pop | |
602 | 0a1e74d9 | Iustin Pop | |
603 | 94428652 | Iustin Pop | def SubmitOrSend(op, opts, cl=None, feedback_fn=None): |
604 | 94428652 | Iustin Pop | """Wrapper around SubmitOpCode or SendJob.
|
605 | 94428652 | Iustin Pop |
|
606 | 94428652 | Iustin Pop | This function will decide, based on the 'opts' parameter, whether to
|
607 | 94428652 | Iustin Pop | submit and wait for the result of the opcode (and return it), or
|
608 | 94428652 | Iustin Pop | whether to just send the job and print its identifier. It is used in
|
609 | 94428652 | Iustin Pop | order to simplify the implementation of the '--submit' option.
|
610 | 94428652 | Iustin Pop |
|
611 | 94428652 | Iustin Pop | """
|
612 | 94428652 | Iustin Pop | if opts and opts.submit_only: |
613 | e9d741b6 | Iustin Pop | job_id = SendJob([op], cl=cl) |
614 | e9d741b6 | Iustin Pop | raise JobSubmittedException(job_id)
|
615 | 94428652 | Iustin Pop | else:
|
616 | 94428652 | Iustin Pop | return SubmitOpCode(op, cl=cl, feedback_fn=feedback_fn)
|
617 | 94428652 | Iustin Pop | |
618 | 94428652 | Iustin Pop | |
619 | af30b2fd | Michael Hanselmann | def GetClient(): |
620 | af30b2fd | Michael Hanselmann | # TODO: Cache object?
|
621 | b33e986b | Iustin Pop | try:
|
622 | b33e986b | Iustin Pop | client = luxi.Client() |
623 | b33e986b | Iustin Pop | except luxi.NoMasterError:
|
624 | b33e986b | Iustin Pop | master, myself = ssconf.GetMasterAndMyself() |
625 | b33e986b | Iustin Pop | if master != myself:
|
626 | b33e986b | Iustin Pop | raise errors.OpPrereqError("This is not the master node, please connect" |
627 | b33e986b | Iustin Pop | " to node '%s' and rerun the command" %
|
628 | b33e986b | Iustin Pop | master) |
629 | b33e986b | Iustin Pop | else:
|
630 | b33e986b | Iustin Pop | raise
|
631 | b33e986b | Iustin Pop | return client
|
632 | af30b2fd | Michael Hanselmann | |
633 | af30b2fd | Michael Hanselmann | |
634 | 73702ee7 | Iustin Pop | def FormatError(err): |
635 | 73702ee7 | Iustin Pop | """Return a formatted error message for a given error.
|
636 | 73702ee7 | Iustin Pop |
|
637 | 73702ee7 | Iustin Pop | This function takes an exception instance and returns a tuple
|
638 | 73702ee7 | Iustin Pop | consisting of two values: first, the recommended exit code, and
|
639 | 73702ee7 | Iustin Pop | second, a string describing the error message (not
|
640 | 73702ee7 | Iustin Pop | newline-terminated).
|
641 | 73702ee7 | Iustin Pop |
|
642 | 73702ee7 | Iustin Pop | """
|
643 | 73702ee7 | Iustin Pop | retcode = 1
|
644 | 73702ee7 | Iustin Pop | obuf = StringIO() |
645 | e2e521d0 | Iustin Pop | msg = str(err)
|
646 | 73702ee7 | Iustin Pop | if isinstance(err, errors.ConfigurationError): |
647 | e2e521d0 | Iustin Pop | txt = "Corrupt configuration file: %s" % msg
|
648 | 46fbdd04 | Iustin Pop | logging.error(txt) |
649 | e2e521d0 | Iustin Pop | obuf.write(txt + "\n")
|
650 | 73702ee7 | Iustin Pop | obuf.write("Aborting.")
|
651 | 73702ee7 | Iustin Pop | retcode = 2
|
652 | 73702ee7 | Iustin Pop | elif isinstance(err, errors.HooksAbort): |
653 | 73702ee7 | Iustin Pop | obuf.write("Failure: hooks execution failed:\n")
|
654 | 73702ee7 | Iustin Pop | for node, script, out in err.args[0]: |
655 | 73702ee7 | Iustin Pop | if out:
|
656 | 73702ee7 | Iustin Pop | obuf.write(" node: %s, script: %s, output: %s\n" %
|
657 | 73702ee7 | Iustin Pop | (node, script, out)) |
658 | 73702ee7 | Iustin Pop | else:
|
659 | 73702ee7 | Iustin Pop | obuf.write(" node: %s, script: %s (no output)\n" %
|
660 | 73702ee7 | Iustin Pop | (node, script)) |
661 | 73702ee7 | Iustin Pop | elif isinstance(err, errors.HooksFailure): |
662 | e2e521d0 | Iustin Pop | obuf.write("Failure: hooks general failure: %s" % msg)
|
663 | 73702ee7 | Iustin Pop | elif isinstance(err, errors.ResolverError): |
664 | 73702ee7 | Iustin Pop | this_host = utils.HostInfo.SysName() |
665 | 73702ee7 | Iustin Pop | if err.args[0] == this_host: |
666 | 73702ee7 | Iustin Pop | msg = "Failure: can't resolve my own hostname ('%s')"
|
667 | 73702ee7 | Iustin Pop | else:
|
668 | 73702ee7 | Iustin Pop | msg = "Failure: can't resolve hostname '%s'"
|
669 | 73702ee7 | Iustin Pop | obuf.write(msg % err.args[0])
|
670 | 73702ee7 | Iustin Pop | elif isinstance(err, errors.OpPrereqError): |
671 | 73702ee7 | Iustin Pop | obuf.write("Failure: prerequisites not met for this"
|
672 | e2e521d0 | Iustin Pop | " operation:\n%s" % msg)
|
673 | 73702ee7 | Iustin Pop | elif isinstance(err, errors.OpExecError): |
674 | e2e521d0 | Iustin Pop | obuf.write("Failure: command execution error:\n%s" % msg)
|
675 | 73702ee7 | Iustin Pop | elif isinstance(err, errors.TagError): |
676 | e2e521d0 | Iustin Pop | obuf.write("Failure: invalid tag(s) given:\n%s" % msg)
|
677 | 686d7433 | Iustin Pop | elif isinstance(err, errors.JobQueueDrainError): |
678 | 686d7433 | Iustin Pop | obuf.write("Failure: the job queue is marked for drain and doesn't"
|
679 | 686d7433 | Iustin Pop | " accept new requests\n")
|
680 | f87b405e | Michael Hanselmann | elif isinstance(err, errors.JobQueueFull): |
681 | f87b405e | Michael Hanselmann | obuf.write("Failure: the job queue is full and doesn't accept new"
|
682 | f87b405e | Michael Hanselmann | " job submissions until old jobs are archived\n")
|
683 | a5728081 | Guido Trotter | elif isinstance(err, errors.TypeEnforcementError): |
684 | a5728081 | Guido Trotter | obuf.write("Parameter Error: %s" % msg)
|
685 | c1ce76bb | Iustin Pop | elif isinstance(err, errors.ParameterError): |
686 | c1ce76bb | Iustin Pop | obuf.write("Failure: unknown/wrong parameter name '%s'" % msg)
|
687 | 73702ee7 | Iustin Pop | elif isinstance(err, errors.GenericError): |
688 | e2e521d0 | Iustin Pop | obuf.write("Unhandled Ganeti error: %s" % msg)
|
689 | 03a8dbdc | Iustin Pop | elif isinstance(err, luxi.NoMasterError): |
690 | 03a8dbdc | Iustin Pop | obuf.write("Cannot communicate with the master daemon.\nIs it running"
|
691 | 082c5adb | Michael Hanselmann | " and listening for connections?")
|
692 | 03a8dbdc | Iustin Pop | elif isinstance(err, luxi.TimeoutError): |
693 | 03a8dbdc | Iustin Pop | obuf.write("Timeout while talking to the master daemon. Error:\n"
|
694 | 03a8dbdc | Iustin Pop | "%s" % msg)
|
695 | 03a8dbdc | Iustin Pop | elif isinstance(err, luxi.ProtocolError): |
696 | 03a8dbdc | Iustin Pop | obuf.write("Unhandled protocol error while talking to the master daemon:\n"
|
697 | 03a8dbdc | Iustin Pop | "%s" % msg)
|
698 | e9d741b6 | Iustin Pop | elif isinstance(err, JobSubmittedException): |
699 | e9d741b6 | Iustin Pop | obuf.write("JobID: %s\n" % err.args[0]) |
700 | e9d741b6 | Iustin Pop | retcode = 0
|
701 | 73702ee7 | Iustin Pop | else:
|
702 | e2e521d0 | Iustin Pop | obuf.write("Unhandled exception: %s" % msg)
|
703 | 73702ee7 | Iustin Pop | return retcode, obuf.getvalue().rstrip('\n') |
704 | 73702ee7 | Iustin Pop | |
705 | 73702ee7 | Iustin Pop | |
706 | de47cf8f | Guido Trotter | def GenericMain(commands, override=None, aliases=None): |
707 | a8083063 | Iustin Pop | """Generic main function for all the gnt-* commands.
|
708 | a8083063 | Iustin Pop |
|
709 | 334d1483 | Iustin Pop | Arguments:
|
710 | 334d1483 | Iustin Pop | - commands: a dictionary with a special structure, see the design doc
|
711 | 334d1483 | Iustin Pop | for command line handling.
|
712 | 334d1483 | Iustin Pop | - override: if not None, we expect a dictionary with keys that will
|
713 | 334d1483 | Iustin Pop | override command line options; this can be used to pass
|
714 | 334d1483 | Iustin Pop | options from the scripts to generic functions
|
715 | de47cf8f | Guido Trotter | - aliases: dictionary with command aliases {'alias': 'target, ...}
|
716 | a8083063 | Iustin Pop |
|
717 | a8083063 | Iustin Pop | """
|
718 | a8083063 | Iustin Pop | # save the program name and the entire command line for later logging
|
719 | a8083063 | Iustin Pop | if sys.argv:
|
720 | a8083063 | Iustin Pop | binary = os.path.basename(sys.argv[0]) or sys.argv[0] |
721 | a8083063 | Iustin Pop | if len(sys.argv) >= 2: |
722 | a8083063 | Iustin Pop | binary += " " + sys.argv[1] |
723 | a8083063 | Iustin Pop | old_cmdline = " ".join(sys.argv[2:]) |
724 | a8083063 | Iustin Pop | else:
|
725 | a8083063 | Iustin Pop | old_cmdline = ""
|
726 | a8083063 | Iustin Pop | else:
|
727 | a8083063 | Iustin Pop | binary = "<unknown program>"
|
728 | a8083063 | Iustin Pop | old_cmdline = ""
|
729 | a8083063 | Iustin Pop | |
730 | de47cf8f | Guido Trotter | if aliases is None: |
731 | de47cf8f | Guido Trotter | aliases = {} |
732 | de47cf8f | Guido Trotter | |
733 | de47cf8f | Guido Trotter | func, options, args = _ParseArgs(sys.argv, commands, aliases) |
734 | a8083063 | Iustin Pop | if func is None: # parse error |
735 | a8083063 | Iustin Pop | return 1 |
736 | a8083063 | Iustin Pop | |
737 | 334d1483 | Iustin Pop | if override is not None: |
738 | 334d1483 | Iustin Pop | for key, val in override.iteritems(): |
739 | 334d1483 | Iustin Pop | setattr(options, key, val)
|
740 | 334d1483 | Iustin Pop | |
741 | 82d9caef | Iustin Pop | utils.SetupLogging(constants.LOG_COMMANDS, debug=options.debug, |
742 | 82d9caef | Iustin Pop | stderr_logging=True, program=binary)
|
743 | a8083063 | Iustin Pop | |
744 | a8083063 | Iustin Pop | if old_cmdline:
|
745 | 46fbdd04 | Iustin Pop | logging.info("run with arguments '%s'", old_cmdline)
|
746 | a8083063 | Iustin Pop | else:
|
747 | 46fbdd04 | Iustin Pop | logging.info("run with no arguments")
|
748 | a8083063 | Iustin Pop | |
749 | a8083063 | Iustin Pop | try:
|
750 | a4af651e | Iustin Pop | result = func(options, args) |
751 | d8353c3a | Iustin Pop | except (errors.GenericError, luxi.ProtocolError,
|
752 | d8353c3a | Iustin Pop | JobSubmittedException), err: |
753 | a4af651e | Iustin Pop | result, err_msg = FormatError(err) |
754 | 5bbd3f7f | Michael Hanselmann | logging.exception("Error during command processing")
|
755 | 46fbdd04 | Iustin Pop | ToStderr(err_msg) |
756 | a8083063 | Iustin Pop | |
757 | a8083063 | Iustin Pop | return result
|
758 | 137161c9 | Michael Hanselmann | |
759 | 137161c9 | Michael Hanselmann | |
760 | 16be8703 | Iustin Pop | def GenerateTable(headers, fields, separator, data, |
761 | 9fbfbb7b | Iustin Pop | numfields=None, unitfields=None, |
762 | 9fbfbb7b | Iustin Pop | units=None):
|
763 | 137161c9 | Michael Hanselmann | """Prints a table with headers and different fields.
|
764 | 137161c9 | Michael Hanselmann |
|
765 | 9fbfbb7b | Iustin Pop | @type headers: dict
|
766 | 9fbfbb7b | Iustin Pop | @param headers: dictionary mapping field names to headers for
|
767 | 9fbfbb7b | Iustin Pop | the table
|
768 | 9fbfbb7b | Iustin Pop | @type fields: list
|
769 | 9fbfbb7b | Iustin Pop | @param fields: the field names corresponding to each row in
|
770 | 9fbfbb7b | Iustin Pop | the data field
|
771 | 9fbfbb7b | Iustin Pop | @param separator: the separator to be used; if this is None,
|
772 | 9fbfbb7b | Iustin Pop | the default 'smart' algorithm is used which computes optimal
|
773 | 9fbfbb7b | Iustin Pop | field width, otherwise just the separator is used between
|
774 | 9fbfbb7b | Iustin Pop | each field
|
775 | 9fbfbb7b | Iustin Pop | @type data: list
|
776 | 9fbfbb7b | Iustin Pop | @param data: a list of lists, each sublist being one row to be output
|
777 | 9fbfbb7b | Iustin Pop | @type numfields: list
|
778 | 9fbfbb7b | Iustin Pop | @param numfields: a list with the fields that hold numeric
|
779 | 9fbfbb7b | Iustin Pop | values and thus should be right-aligned
|
780 | 9fbfbb7b | Iustin Pop | @type unitfields: list
|
781 | 9fbfbb7b | Iustin Pop | @param unitfields: a list with the fields that hold numeric
|
782 | 9fbfbb7b | Iustin Pop | values that should be formatted with the units field
|
783 | 9fbfbb7b | Iustin Pop | @type units: string or None
|
784 | 9fbfbb7b | Iustin Pop | @param units: the units we should use for formatting, or None for
|
785 | 9fbfbb7b | Iustin Pop | automatic choice (human-readable for non-separator usage, otherwise
|
786 | 9fbfbb7b | Iustin Pop | megabytes); this is a one-letter string
|
787 | 137161c9 | Michael Hanselmann |
|
788 | 137161c9 | Michael Hanselmann | """
|
789 | 9fbfbb7b | Iustin Pop | if units is None: |
790 | 9fbfbb7b | Iustin Pop | if separator:
|
791 | 9fbfbb7b | Iustin Pop | units = "m"
|
792 | 9fbfbb7b | Iustin Pop | else:
|
793 | 9fbfbb7b | Iustin Pop | units = "h"
|
794 | 9fbfbb7b | Iustin Pop | |
795 | 137161c9 | Michael Hanselmann | if numfields is None: |
796 | 137161c9 | Michael Hanselmann | numfields = [] |
797 | 137161c9 | Michael Hanselmann | if unitfields is None: |
798 | 137161c9 | Michael Hanselmann | unitfields = [] |
799 | 137161c9 | Michael Hanselmann | |
800 | fe267188 | Iustin Pop | numfields = utils.FieldSet(*numfields) # pylint: disable-msg=W0142
|
801 | fe267188 | Iustin Pop | unitfields = utils.FieldSet(*unitfields) # pylint: disable-msg=W0142
|
802 | 00430f8e | Iustin Pop | |
803 | 137161c9 | Michael Hanselmann | format_fields = [] |
804 | 137161c9 | Michael Hanselmann | for field in fields: |
805 | 01ca31ae | Iustin Pop | if headers and field not in headers: |
806 | ea5a5b74 | Guido Trotter | # TODO: handle better unknown fields (either revert to old
|
807 | 71c1af58 | Iustin Pop | # style of raising exception, or deal more intelligently with
|
808 | 71c1af58 | Iustin Pop | # variable fields)
|
809 | 71c1af58 | Iustin Pop | headers[field] = field |
810 | 137161c9 | Michael Hanselmann | if separator is not None: |
811 | 137161c9 | Michael Hanselmann | format_fields.append("%s")
|
812 | 00430f8e | Iustin Pop | elif numfields.Matches(field):
|
813 | 137161c9 | Michael Hanselmann | format_fields.append("%*s")
|
814 | 137161c9 | Michael Hanselmann | else:
|
815 | 137161c9 | Michael Hanselmann | format_fields.append("%-*s")
|
816 | 137161c9 | Michael Hanselmann | |
817 | 137161c9 | Michael Hanselmann | if separator is None: |
818 | 137161c9 | Michael Hanselmann | mlens = [0 for name in fields] |
819 | 137161c9 | Michael Hanselmann | format = ' '.join(format_fields)
|
820 | 137161c9 | Michael Hanselmann | else:
|
821 | 137161c9 | Michael Hanselmann | format = separator.replace("%", "%%").join(format_fields) |
822 | 137161c9 | Michael Hanselmann | |
823 | 137161c9 | Michael Hanselmann | for row in data: |
824 | dcbd6288 | Guido Trotter | if row is None: |
825 | dcbd6288 | Guido Trotter | continue
|
826 | 137161c9 | Michael Hanselmann | for idx, val in enumerate(row): |
827 | 00430f8e | Iustin Pop | if unitfields.Matches(fields[idx]):
|
828 | 137161c9 | Michael Hanselmann | try:
|
829 | 137161c9 | Michael Hanselmann | val = int(val)
|
830 | 137161c9 | Michael Hanselmann | except ValueError: |
831 | 137161c9 | Michael Hanselmann | pass
|
832 | 137161c9 | Michael Hanselmann | else:
|
833 | 9fbfbb7b | Iustin Pop | val = row[idx] = utils.FormatUnit(val, units) |
834 | 01ca31ae | Iustin Pop | val = row[idx] = str(val)
|
835 | 137161c9 | Michael Hanselmann | if separator is None: |
836 | 137161c9 | Michael Hanselmann | mlens[idx] = max(mlens[idx], len(val)) |
837 | 137161c9 | Michael Hanselmann | |
838 | 16be8703 | Iustin Pop | result = [] |
839 | 137161c9 | Michael Hanselmann | if headers:
|
840 | 137161c9 | Michael Hanselmann | args = [] |
841 | 137161c9 | Michael Hanselmann | for idx, name in enumerate(fields): |
842 | 137161c9 | Michael Hanselmann | hdr = headers[name] |
843 | 137161c9 | Michael Hanselmann | if separator is None: |
844 | 137161c9 | Michael Hanselmann | mlens[idx] = max(mlens[idx], len(hdr)) |
845 | 137161c9 | Michael Hanselmann | args.append(mlens[idx]) |
846 | 137161c9 | Michael Hanselmann | args.append(hdr) |
847 | 16be8703 | Iustin Pop | result.append(format % tuple(args))
|
848 | 137161c9 | Michael Hanselmann | |
849 | 137161c9 | Michael Hanselmann | for line in data: |
850 | 137161c9 | Michael Hanselmann | args = [] |
851 | dcbd6288 | Guido Trotter | if line is None: |
852 | dcbd6288 | Guido Trotter | line = ['-' for _ in fields] |
853 | 137161c9 | Michael Hanselmann | for idx in xrange(len(fields)): |
854 | 137161c9 | Michael Hanselmann | if separator is None: |
855 | 137161c9 | Michael Hanselmann | args.append(mlens[idx]) |
856 | 137161c9 | Michael Hanselmann | args.append(line[idx]) |
857 | 16be8703 | Iustin Pop | result.append(format % tuple(args))
|
858 | 16be8703 | Iustin Pop | |
859 | 16be8703 | Iustin Pop | return result
|
860 | 3386e7a9 | Iustin Pop | |
861 | 3386e7a9 | Iustin Pop | |
862 | 3386e7a9 | Iustin Pop | def FormatTimestamp(ts): |
863 | 3386e7a9 | Iustin Pop | """Formats a given timestamp.
|
864 | 3386e7a9 | Iustin Pop |
|
865 | 3386e7a9 | Iustin Pop | @type ts: timestamp
|
866 | 3386e7a9 | Iustin Pop | @param ts: a timeval-type timestamp, a tuple of seconds and microseconds
|
867 | 3386e7a9 | Iustin Pop |
|
868 | 3386e7a9 | Iustin Pop | @rtype: string
|
869 | 5fcc718f | Iustin Pop | @return: a string with the formatted timestamp
|
870 | 3386e7a9 | Iustin Pop |
|
871 | 3386e7a9 | Iustin Pop | """
|
872 | e0ec0ff6 | Iustin Pop | if not isinstance (ts, (tuple, list)) or len(ts) != 2: |
873 | e0ec0ff6 | Iustin Pop | return '?' |
874 | 3386e7a9 | Iustin Pop | sec, usec = ts |
875 | 3386e7a9 | Iustin Pop | return time.strftime("%F %T", time.localtime(sec)) + ".%06d" % usec |
876 | 2241e2b9 | Iustin Pop | |
877 | 2241e2b9 | Iustin Pop | |
878 | 2241e2b9 | Iustin Pop | def ParseTimespec(value): |
879 | 2241e2b9 | Iustin Pop | """Parse a time specification.
|
880 | 2241e2b9 | Iustin Pop |
|
881 | 2241e2b9 | Iustin Pop | The following suffixed will be recognized:
|
882 | 2241e2b9 | Iustin Pop |
|
883 | 2241e2b9 | Iustin Pop | - s: seconds
|
884 | 2241e2b9 | Iustin Pop | - m: minutes
|
885 | 2241e2b9 | Iustin Pop | - h: hours
|
886 | 2241e2b9 | Iustin Pop | - d: day
|
887 | 2241e2b9 | Iustin Pop | - w: weeks
|
888 | 2241e2b9 | Iustin Pop |
|
889 | 2241e2b9 | Iustin Pop | Without any suffix, the value will be taken to be in seconds.
|
890 | 2241e2b9 | Iustin Pop |
|
891 | 2241e2b9 | Iustin Pop | """
|
892 | 2241e2b9 | Iustin Pop | value = str(value)
|
893 | 2241e2b9 | Iustin Pop | if not value: |
894 | 2241e2b9 | Iustin Pop | raise errors.OpPrereqError("Empty time specification passed") |
895 | 2241e2b9 | Iustin Pop | suffix_map = { |
896 | 2241e2b9 | Iustin Pop | 's': 1, |
897 | 2241e2b9 | Iustin Pop | 'm': 60, |
898 | 2241e2b9 | Iustin Pop | 'h': 3600, |
899 | 2241e2b9 | Iustin Pop | 'd': 86400, |
900 | 2241e2b9 | Iustin Pop | 'w': 604800, |
901 | 2241e2b9 | Iustin Pop | } |
902 | 2241e2b9 | Iustin Pop | if value[-1] not in suffix_map: |
903 | 2241e2b9 | Iustin Pop | try:
|
904 | 2241e2b9 | Iustin Pop | value = int(value)
|
905 | 2241e2b9 | Iustin Pop | except ValueError: |
906 | 2241e2b9 | Iustin Pop | raise errors.OpPrereqError("Invalid time specification '%s'" % value) |
907 | 2241e2b9 | Iustin Pop | else:
|
908 | 2241e2b9 | Iustin Pop | multiplier = suffix_map[value[-1]]
|
909 | 2241e2b9 | Iustin Pop | value = value[:-1]
|
910 | 2241e2b9 | Iustin Pop | if not value: # no data left after stripping the suffix |
911 | 2241e2b9 | Iustin Pop | raise errors.OpPrereqError("Invalid time specification (only" |
912 | 2241e2b9 | Iustin Pop | " suffix passed)")
|
913 | 2241e2b9 | Iustin Pop | try:
|
914 | 2241e2b9 | Iustin Pop | value = int(value) * multiplier
|
915 | 2241e2b9 | Iustin Pop | except ValueError: |
916 | 2241e2b9 | Iustin Pop | raise errors.OpPrereqError("Invalid time specification '%s'" % value) |
917 | 2241e2b9 | Iustin Pop | return value
|
918 | 46fbdd04 | Iustin Pop | |
919 | 46fbdd04 | Iustin Pop | |
920 | 4040a784 | Iustin Pop | def GetOnlineNodes(nodes, cl=None, nowarn=False): |
921 | 4040a784 | Iustin Pop | """Returns the names of online nodes.
|
922 | 4040a784 | Iustin Pop |
|
923 | 4040a784 | Iustin Pop | This function will also log a warning on stderr with the names of
|
924 | 4040a784 | Iustin Pop | the online nodes.
|
925 | 4040a784 | Iustin Pop |
|
926 | 4040a784 | Iustin Pop | @param nodes: if not empty, use only this subset of nodes (minus the
|
927 | 4040a784 | Iustin Pop | offline ones)
|
928 | 4040a784 | Iustin Pop | @param cl: if not None, luxi client to use
|
929 | 4040a784 | Iustin Pop | @type nowarn: boolean
|
930 | 4040a784 | Iustin Pop | @param nowarn: by default, this function will output a note with the
|
931 | 4040a784 | Iustin Pop | offline nodes that are skipped; if this parameter is True the
|
932 | 4040a784 | Iustin Pop | note is not displayed
|
933 | 4040a784 | Iustin Pop |
|
934 | 4040a784 | Iustin Pop | """
|
935 | 4040a784 | Iustin Pop | if cl is None: |
936 | 4040a784 | Iustin Pop | cl = GetClient() |
937 | 4040a784 | Iustin Pop | |
938 | 2e7b8369 | Iustin Pop | result = cl.QueryNodes(names=nodes, fields=["name", "offline"], |
939 | 2e7b8369 | Iustin Pop | use_locking=False)
|
940 | 4040a784 | Iustin Pop | offline = [row[0] for row in result if row[1]] |
941 | 4040a784 | Iustin Pop | if offline and not nowarn: |
942 | 4040a784 | Iustin Pop | ToStderr("Note: skipping offline node(s): %s" % ", ".join(offline)) |
943 | 4040a784 | Iustin Pop | return [row[0] for row in result if not row[1]] |
944 | 4040a784 | Iustin Pop | |
945 | 4040a784 | Iustin Pop | |
946 | 46fbdd04 | Iustin Pop | def _ToStream(stream, txt, *args): |
947 | 46fbdd04 | Iustin Pop | """Write a message to a stream, bypassing the logging system
|
948 | 46fbdd04 | Iustin Pop |
|
949 | 46fbdd04 | Iustin Pop | @type stream: file object
|
950 | 46fbdd04 | Iustin Pop | @param stream: the file to which we should write
|
951 | 46fbdd04 | Iustin Pop | @type txt: str
|
952 | 46fbdd04 | Iustin Pop | @param txt: the message
|
953 | 46fbdd04 | Iustin Pop |
|
954 | 46fbdd04 | Iustin Pop | """
|
955 | 46fbdd04 | Iustin Pop | if args:
|
956 | 46fbdd04 | Iustin Pop | args = tuple(args)
|
957 | 46fbdd04 | Iustin Pop | stream.write(txt % args) |
958 | 46fbdd04 | Iustin Pop | else:
|
959 | 46fbdd04 | Iustin Pop | stream.write(txt) |
960 | 46fbdd04 | Iustin Pop | stream.write('\n')
|
961 | 46fbdd04 | Iustin Pop | stream.flush() |
962 | 46fbdd04 | Iustin Pop | |
963 | 46fbdd04 | Iustin Pop | |
964 | 46fbdd04 | Iustin Pop | def ToStdout(txt, *args): |
965 | 46fbdd04 | Iustin Pop | """Write a message to stdout only, bypassing the logging system
|
966 | 46fbdd04 | Iustin Pop |
|
967 | 46fbdd04 | Iustin Pop | This is just a wrapper over _ToStream.
|
968 | 46fbdd04 | Iustin Pop |
|
969 | 46fbdd04 | Iustin Pop | @type txt: str
|
970 | 46fbdd04 | Iustin Pop | @param txt: the message
|
971 | 46fbdd04 | Iustin Pop |
|
972 | 46fbdd04 | Iustin Pop | """
|
973 | 46fbdd04 | Iustin Pop | _ToStream(sys.stdout, txt, *args) |
974 | 46fbdd04 | Iustin Pop | |
975 | 46fbdd04 | Iustin Pop | |
976 | 46fbdd04 | Iustin Pop | def ToStderr(txt, *args): |
977 | 46fbdd04 | Iustin Pop | """Write a message to stderr only, bypassing the logging system
|
978 | 46fbdd04 | Iustin Pop |
|
979 | 46fbdd04 | Iustin Pop | This is just a wrapper over _ToStream.
|
980 | 46fbdd04 | Iustin Pop |
|
981 | 46fbdd04 | Iustin Pop | @type txt: str
|
982 | 46fbdd04 | Iustin Pop | @param txt: the message
|
983 | 46fbdd04 | Iustin Pop |
|
984 | 46fbdd04 | Iustin Pop | """
|
985 | 46fbdd04 | Iustin Pop | _ToStream(sys.stderr, txt, *args) |
986 | 479636a3 | Iustin Pop | |
987 | 479636a3 | Iustin Pop | |
988 | 479636a3 | Iustin Pop | class JobExecutor(object): |
989 | 479636a3 | Iustin Pop | """Class which manages the submission and execution of multiple jobs.
|
990 | 479636a3 | Iustin Pop |
|
991 | 479636a3 | Iustin Pop | Note that instances of this class should not be reused between
|
992 | 479636a3 | Iustin Pop | GetResults() calls.
|
993 | 479636a3 | Iustin Pop |
|
994 | 479636a3 | Iustin Pop | """
|
995 | 479636a3 | Iustin Pop | def __init__(self, cl=None, verbose=True): |
996 | 479636a3 | Iustin Pop | self.queue = []
|
997 | 479636a3 | Iustin Pop | if cl is None: |
998 | 479636a3 | Iustin Pop | cl = GetClient() |
999 | 479636a3 | Iustin Pop | self.cl = cl
|
1000 | 479636a3 | Iustin Pop | self.verbose = verbose
|
1001 | f2921752 | Iustin Pop | self.jobs = []
|
1002 | 479636a3 | Iustin Pop | |
1003 | 479636a3 | Iustin Pop | def QueueJob(self, name, *ops): |
1004 | f2921752 | Iustin Pop | """Record a job for later submit.
|
1005 | 479636a3 | Iustin Pop |
|
1006 | 479636a3 | Iustin Pop | @type name: string
|
1007 | 479636a3 | Iustin Pop | @param name: a description of the job, will be used in WaitJobSet
|
1008 | 479636a3 | Iustin Pop | """
|
1009 | f2921752 | Iustin Pop | self.queue.append((name, ops))
|
1010 | f2921752 | Iustin Pop | |
1011 | f2921752 | Iustin Pop | def SubmitPending(self): |
1012 | f2921752 | Iustin Pop | """Submit all pending jobs.
|
1013 | f2921752 | Iustin Pop |
|
1014 | f2921752 | Iustin Pop | """
|
1015 | f2921752 | Iustin Pop | results = self.cl.SubmitManyJobs([row[1] for row in self.queue]) |
1016 | f2921752 | Iustin Pop | for ((status, data), (name, _)) in zip(results, self.queue): |
1017 | f2921752 | Iustin Pop | self.jobs.append((status, data, name))
|
1018 | 479636a3 | Iustin Pop | |
1019 | 479636a3 | Iustin Pop | def GetResults(self): |
1020 | 479636a3 | Iustin Pop | """Wait for and return the results of all jobs.
|
1021 | 479636a3 | Iustin Pop |
|
1022 | 479636a3 | Iustin Pop | @rtype: list
|
1023 | 479636a3 | Iustin Pop | @return: list of tuples (success, job results), in the same order
|
1024 | 479636a3 | Iustin Pop | as the submitted jobs; if a job has failed, instead of the result
|
1025 | 479636a3 | Iustin Pop | there will be the error message
|
1026 | 479636a3 | Iustin Pop |
|
1027 | 479636a3 | Iustin Pop | """
|
1028 | f2921752 | Iustin Pop | if not self.jobs: |
1029 | f2921752 | Iustin Pop | self.SubmitPending()
|
1030 | 479636a3 | Iustin Pop | results = [] |
1031 | 479636a3 | Iustin Pop | if self.verbose: |
1032 | f2921752 | Iustin Pop | ok_jobs = [row[1] for row in self.jobs if row[0]] |
1033 | f2921752 | Iustin Pop | if ok_jobs:
|
1034 | f2921752 | Iustin Pop | ToStdout("Submitted jobs %s", ", ".join(ok_jobs)) |
1035 | f2921752 | Iustin Pop | for submit_status, jid, name in self.jobs: |
1036 | f2921752 | Iustin Pop | if not submit_status: |
1037 | f2921752 | Iustin Pop | ToStderr("Failed to submit job for %s: %s", name, jid)
|
1038 | f2921752 | Iustin Pop | results.append((False, jid))
|
1039 | f2921752 | Iustin Pop | continue
|
1040 | 479636a3 | Iustin Pop | if self.verbose: |
1041 | 479636a3 | Iustin Pop | ToStdout("Waiting for job %s for %s...", jid, name)
|
1042 | 479636a3 | Iustin Pop | try:
|
1043 | 479636a3 | Iustin Pop | job_result = PollJob(jid, cl=self.cl)
|
1044 | 479636a3 | Iustin Pop | success = True
|
1045 | 479636a3 | Iustin Pop | except (errors.GenericError, luxi.ProtocolError), err:
|
1046 | 479636a3 | Iustin Pop | _, job_result = FormatError(err) |
1047 | 479636a3 | Iustin Pop | success = False
|
1048 | 479636a3 | Iustin Pop | # the error message will always be shown, verbose or not
|
1049 | 479636a3 | Iustin Pop | ToStderr("Job %s for %s has failed: %s", jid, name, job_result)
|
1050 | 479636a3 | Iustin Pop | |
1051 | 479636a3 | Iustin Pop | results.append((success, job_result)) |
1052 | 479636a3 | Iustin Pop | return results
|
1053 | 479636a3 | Iustin Pop | |
1054 | 479636a3 | Iustin Pop | def WaitOrShow(self, wait): |
1055 | 479636a3 | Iustin Pop | """Wait for job results or only print the job IDs.
|
1056 | 479636a3 | Iustin Pop |
|
1057 | 479636a3 | Iustin Pop | @type wait: boolean
|
1058 | 479636a3 | Iustin Pop | @param wait: whether to wait or not
|
1059 | 479636a3 | Iustin Pop |
|
1060 | 479636a3 | Iustin Pop | """
|
1061 | 479636a3 | Iustin Pop | if wait:
|
1062 | 479636a3 | Iustin Pop | return self.GetResults() |
1063 | 479636a3 | Iustin Pop | else:
|
1064 | f2921752 | Iustin Pop | if not self.jobs: |
1065 | f2921752 | Iustin Pop | self.SubmitPending()
|
1066 | f2921752 | Iustin Pop | for status, result, name in self.jobs: |
1067 | f2921752 | Iustin Pop | if status:
|
1068 | f2921752 | Iustin Pop | ToStdout("%s: %s", result, name)
|
1069 | f2921752 | Iustin Pop | else:
|
1070 | f2921752 | Iustin Pop | ToStderr("Failure for %s: %s", name, result) |