root / kamaki / cli / command_tree.py @ d88ba587
History | View | Annotate | Download (6.9 kB)
1 | b9331a9f | Stavros Sachtouris | # Copyright 2012 GRNET S.A. All rights reserved.
|
---|---|---|---|
2 | 00af4193 | Stavros Sachtouris | #
|
3 | 00af4193 | Stavros Sachtouris | # Redistribution and use in source and binary forms, with or
|
4 | 00af4193 | Stavros Sachtouris | # without modification, are permitted provided that the following
|
5 | 00af4193 | Stavros Sachtouris | # conditions are met:
|
6 | 00af4193 | Stavros Sachtouris | #
|
7 | 00af4193 | Stavros Sachtouris | # 1. Redistributions of source code must retain the above
|
8 | fd5db045 | Stavros Sachtouris | # copyright notice, this list of conditions and the following
|
9 | fd5db045 | Stavros Sachtouris | # disclaimer.
|
10 | 00af4193 | Stavros Sachtouris | #
|
11 | 00af4193 | Stavros Sachtouris | # 2. Redistributions in binary form must reproduce the above
|
12 | fd5db045 | Stavros Sachtouris | # copyright notice, this list of conditions and the following
|
13 | fd5db045 | Stavros Sachtouris | # disclaimer in the documentation and/or other materials
|
14 | fd5db045 | Stavros Sachtouris | # provided with the distribution.
|
15 | 00af4193 | Stavros Sachtouris | #
|
16 | 00af4193 | Stavros Sachtouris | # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
|
17 | 00af4193 | Stavros Sachtouris | # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
18 | 00af4193 | Stavros Sachtouris | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
19 | 00af4193 | Stavros Sachtouris | # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
|
20 | 00af4193 | Stavros Sachtouris | # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
21 | 00af4193 | Stavros Sachtouris | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
22 | 00af4193 | Stavros Sachtouris | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
23 | 00af4193 | Stavros Sachtouris | # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
24 | 00af4193 | Stavros Sachtouris | # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
25 | 00af4193 | Stavros Sachtouris | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
26 | 00af4193 | Stavros Sachtouris | # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
27 | 00af4193 | Stavros Sachtouris | # POSSIBILITY OF SUCH DAMAGE.
|
28 | 00af4193 | Stavros Sachtouris | #
|
29 | 00af4193 | Stavros Sachtouris | # The views and conclusions contained in the software and
|
30 | 00af4193 | Stavros Sachtouris | # documentation are those of the authors and should not be
|
31 | 00af4193 | Stavros Sachtouris | # interpreted as representing official policies, either expressed
|
32 | 00af4193 | Stavros Sachtouris | # or implied, of GRNET S.A.
|
33 | 00af4193 | Stavros Sachtouris | |
34 | fd5db045 | Stavros Sachtouris | |
35 | 00af4193 | Stavros Sachtouris | class Command(object): |
36 | fd5db045 | Stavros Sachtouris | """Store a command and the next-level (2 levels)"""
|
37 | fd5db045 | Stavros Sachtouris | _name = None
|
38 | fd5db045 | Stavros Sachtouris | path = None
|
39 | fd5db045 | Stavros Sachtouris | cmd_class = None
|
40 | fd5db045 | Stavros Sachtouris | subcommands = {} |
41 | fd5db045 | Stavros Sachtouris | help = ' '
|
42 | fd5db045 | Stavros Sachtouris | |
43 | fd5db045 | Stavros Sachtouris | def __init__(self, path, help=' ', subcommands={}, cmd_class=None): |
44 | fd5db045 | Stavros Sachtouris | self.path = path
|
45 | fd5db045 | Stavros Sachtouris | self.help = help
|
46 | fd5db045 | Stavros Sachtouris | self.subcommands = dict(subcommands) |
47 | fd5db045 | Stavros Sachtouris | self.cmd_class = cmd_class
|
48 | fd5db045 | Stavros Sachtouris | |
49 | fd5db045 | Stavros Sachtouris | @property
|
50 | fd5db045 | Stavros Sachtouris | def name(self): |
51 | fd5db045 | Stavros Sachtouris | if self._name is None: |
52 | fd5db045 | Stavros Sachtouris | self._name = self.path.split('_')[-1] |
53 | fd5db045 | Stavros Sachtouris | return str(self._name) |
54 | fd5db045 | Stavros Sachtouris | |
55 | fd5db045 | Stavros Sachtouris | def add_subcmd(self, subcmd): |
56 | fd5db045 | Stavros Sachtouris | if subcmd.path == '%s_%s' % (self.path, subcmd.name): |
57 | fd5db045 | Stavros Sachtouris | self.subcommands[subcmd.name] = subcmd
|
58 | fd5db045 | Stavros Sachtouris | return True |
59 | fd5db045 | Stavros Sachtouris | return False |
60 | fd5db045 | Stavros Sachtouris | |
61 | fd5db045 | Stavros Sachtouris | def get_subcmd(self, name): |
62 | fd5db045 | Stavros Sachtouris | try:
|
63 | fd5db045 | Stavros Sachtouris | return self.subcommands[name] |
64 | fd5db045 | Stavros Sachtouris | except KeyError: |
65 | fd5db045 | Stavros Sachtouris | return None |
66 | fd5db045 | Stavros Sachtouris | |
67 | fd5db045 | Stavros Sachtouris | def contains(self, name): |
68 | fd5db045 | Stavros Sachtouris | """Check if a name is a direct child of self"""
|
69 | fd5db045 | Stavros Sachtouris | return name in self.subcommands |
70 | fd5db045 | Stavros Sachtouris | |
71 | fd5db045 | Stavros Sachtouris | @property
|
72 | fd5db045 | Stavros Sachtouris | def is_command(self): |
73 | fd5db045 | Stavros Sachtouris | return self.cmd_class is not None |
74 | fd5db045 | Stavros Sachtouris | |
75 | fd5db045 | Stavros Sachtouris | @property
|
76 | fd5db045 | Stavros Sachtouris | def has_description(self): |
77 | fd5db045 | Stavros Sachtouris | return len(self.help.strip()) > 0 |
78 | fd5db045 | Stavros Sachtouris | |
79 | fd5db045 | Stavros Sachtouris | @property
|
80 | fd5db045 | Stavros Sachtouris | def description(self): |
81 | fd5db045 | Stavros Sachtouris | return self.help |
82 | fd5db045 | Stavros Sachtouris | |
83 | fd5db045 | Stavros Sachtouris | @property
|
84 | fd5db045 | Stavros Sachtouris | def parent_path(self): |
85 | fd5db045 | Stavros Sachtouris | parentpath, sep, name = self.path.rpartition('_') |
86 | fd5db045 | Stavros Sachtouris | return parentpath
|
87 | fd5db045 | Stavros Sachtouris | |
88 | fd5db045 | Stavros Sachtouris | def set_class(self, cmd_class): |
89 | fd5db045 | Stavros Sachtouris | self.cmd_class = cmd_class
|
90 | fd5db045 | Stavros Sachtouris | |
91 | fd5db045 | Stavros Sachtouris | def get_class(self): |
92 | fd5db045 | Stavros Sachtouris | return self.cmd_class |
93 | fd5db045 | Stavros Sachtouris | |
94 | fd5db045 | Stavros Sachtouris | def has_subname(self, subname): |
95 | fd5db045 | Stavros Sachtouris | return subname in self.subcommands |
96 | fd5db045 | Stavros Sachtouris | |
97 | fd5db045 | Stavros Sachtouris | def get_subnames(self): |
98 | fd5db045 | Stavros Sachtouris | return self.subcommands.keys() |
99 | fd5db045 | Stavros Sachtouris | |
100 | fd5db045 | Stavros Sachtouris | def get_subcommands(self): |
101 | fd5db045 | Stavros Sachtouris | return self.subcommands.values() |
102 | fd5db045 | Stavros Sachtouris | |
103 | fd5db045 | Stavros Sachtouris | def sublen(self): |
104 | fd5db045 | Stavros Sachtouris | return len(self.subcommands) |
105 | fd5db045 | Stavros Sachtouris | |
106 | fd5db045 | Stavros Sachtouris | def parse_out(self, args): |
107 | fd5db045 | Stavros Sachtouris | cmd = self
|
108 | fd5db045 | Stavros Sachtouris | index = 0
|
109 | fd5db045 | Stavros Sachtouris | for term in args: |
110 | fd5db045 | Stavros Sachtouris | try:
|
111 | fd5db045 | Stavros Sachtouris | cmd = cmd.subcommands[term] |
112 | fd5db045 | Stavros Sachtouris | except KeyError: |
113 | fd5db045 | Stavros Sachtouris | break
|
114 | fd5db045 | Stavros Sachtouris | index += 1
|
115 | fd5db045 | Stavros Sachtouris | return cmd, args[index:]
|
116 | fd5db045 | Stavros Sachtouris | |
117 | fd5db045 | Stavros Sachtouris | def pretty_print(self, recursive=False): |
118 | fd5db045 | Stavros Sachtouris | print('Path: %s (Name: %s) is_cmd: %s\n\thelp: %s'\
|
119 | fd5db045 | Stavros Sachtouris | % (self.path, self.name, self.is_command, self.help)) |
120 | fd5db045 | Stavros Sachtouris | for cmd in self.get_subcommands(): |
121 | fd5db045 | Stavros Sachtouris | cmd.pretty_print(recursive) |
122 | fd5db045 | Stavros Sachtouris | |
123 | 00af4193 | Stavros Sachtouris | |
124 | d9325478 | Stavros Sachtouris | class CommandTree(object): |
125 | d9325478 | Stavros Sachtouris | |
126 | fd5db045 | Stavros Sachtouris | groups = {} |
127 | fd5db045 | Stavros Sachtouris | _all_commands = {} |
128 | fd5db045 | Stavros Sachtouris | name = None
|
129 | fd5db045 | Stavros Sachtouris | description = None
|
130 | fd5db045 | Stavros Sachtouris | |
131 | fd5db045 | Stavros Sachtouris | def __init__(self, name, description=''): |
132 | fd5db045 | Stavros Sachtouris | self.name = name
|
133 | fd5db045 | Stavros Sachtouris | self.description = description
|
134 | fd5db045 | Stavros Sachtouris | |
135 | fd5db045 | Stavros Sachtouris | def add_command(self, command_path, description=None, cmd_class=None): |
136 | fd5db045 | Stavros Sachtouris | terms = command_path.split('_')
|
137 | fd5db045 | Stavros Sachtouris | try:
|
138 | fd5db045 | Stavros Sachtouris | cmd = self.groups[terms[0]] |
139 | fd5db045 | Stavros Sachtouris | except KeyError: |
140 | fd5db045 | Stavros Sachtouris | cmd = Command(terms[0])
|
141 | fd5db045 | Stavros Sachtouris | self.groups[terms[0]] = cmd |
142 | fd5db045 | Stavros Sachtouris | self._all_commands[terms[0]] = cmd |
143 | fd5db045 | Stavros Sachtouris | path = terms[0]
|
144 | fd5db045 | Stavros Sachtouris | for term in terms[1:]: |
145 | fd5db045 | Stavros Sachtouris | path += '_' + term
|
146 | fd5db045 | Stavros Sachtouris | try:
|
147 | fd5db045 | Stavros Sachtouris | cmd = cmd.subcommands[term] |
148 | fd5db045 | Stavros Sachtouris | except KeyError: |
149 | fd5db045 | Stavros Sachtouris | new_cmd = Command(path) |
150 | fd5db045 | Stavros Sachtouris | self._all_commands[path] = new_cmd
|
151 | fd5db045 | Stavros Sachtouris | cmd.add_subcmd(new_cmd) |
152 | fd5db045 | Stavros Sachtouris | cmd = new_cmd |
153 | fd5db045 | Stavros Sachtouris | if cmd_class is not None: |
154 | fd5db045 | Stavros Sachtouris | cmd.set_class(cmd_class) |
155 | fd5db045 | Stavros Sachtouris | if description is not None: |
156 | fd5db045 | Stavros Sachtouris | cmd.help = description |
157 | fd5db045 | Stavros Sachtouris | |
158 | 6514457a | Stavros Sachtouris | def add_tree(self, new_tree): |
159 | 6514457a | Stavros Sachtouris | tname = new_tree.name |
160 | 6514457a | Stavros Sachtouris | tdesc = new_tree.description |
161 | 6514457a | Stavros Sachtouris | self.groups.update(new_tree.groups)
|
162 | 6514457a | Stavros Sachtouris | self._all_commands.update(new_tree._all_commands)
|
163 | 6514457a | Stavros Sachtouris | self.set_description(tname, tdesc)
|
164 | 6514457a | Stavros Sachtouris | |
165 | 0d249b3e | Stavros Sachtouris | def has_command(self, path): |
166 | 0d249b3e | Stavros Sachtouris | return path in self._all_commands |
167 | 0d249b3e | Stavros Sachtouris | |
168 | fd5db045 | Stavros Sachtouris | def get_command(self, path): |
169 | fd5db045 | Stavros Sachtouris | return self._all_commands[path] |
170 | fd5db045 | Stavros Sachtouris | |
171 | fd5db045 | Stavros Sachtouris | def get_groups(self): |
172 | fd5db045 | Stavros Sachtouris | return self.groups.values() |
173 | fd5db045 | Stavros Sachtouris | |
174 | fd5db045 | Stavros Sachtouris | def get_group_names(self): |
175 | fd5db045 | Stavros Sachtouris | return self.groups.keys() |
176 | fd5db045 | Stavros Sachtouris | |
177 | fd5db045 | Stavros Sachtouris | def set_description(self, path, description): |
178 | fd5db045 | Stavros Sachtouris | self._all_commands[path].help = description
|
179 | fd5db045 | Stavros Sachtouris | |
180 | d07b3796 | Stavros Sachtouris | def get_description(self, path): |
181 | fd5db045 | Stavros Sachtouris | return self._all_commands[path].help |
182 | fd5db045 | Stavros Sachtouris | |
183 | fd5db045 | Stavros Sachtouris | def set_class(self, path, cmd_class): |
184 | fd5db045 | Stavros Sachtouris | self._all_commands[path].set_class(cmd_class)
|
185 | fd5db045 | Stavros Sachtouris | |
186 | fd5db045 | Stavros Sachtouris | def get_class(self, path): |
187 | fd5db045 | Stavros Sachtouris | return self._all_commands[path].get_class() |
188 | fd5db045 | Stavros Sachtouris | |
189 | fd5db045 | Stavros Sachtouris | def get_subnames(self, path=None): |
190 | fd5db045 | Stavros Sachtouris | return self.get_group_names() if path in (None, '') \ |
191 | fd5db045 | Stavros Sachtouris | else self._all_commands[path].get_subnames() |
192 | fd5db045 | Stavros Sachtouris | |
193 | fd5db045 | Stavros Sachtouris | def get_subcommands(self, path=None): |
194 | fd5db045 | Stavros Sachtouris | return self.get_groups() if path in (None, '') \ |
195 | fd5db045 | Stavros Sachtouris | else self._all_commands[path].get_subcommands() |
196 | fd5db045 | Stavros Sachtouris | |
197 | fd5db045 | Stavros Sachtouris | def get_parent(self, path): |
198 | fd5db045 | Stavros Sachtouris | if '_' not in path: |
199 | fd5db045 | Stavros Sachtouris | return None |
200 | fd5db045 | Stavros Sachtouris | terms = path.split('_')
|
201 | fd5db045 | Stavros Sachtouris | parent_path = '_'.join(terms[:-1]) |
202 | fd5db045 | Stavros Sachtouris | return self._all_commands[parent_path] |
203 | fd5db045 | Stavros Sachtouris | |
204 | fd5db045 | Stavros Sachtouris | def get_closest_ancestor_command(self, path): |
205 | fd5db045 | Stavros Sachtouris | path, sep, name = path.rpartition('_')
|
206 | fd5db045 | Stavros Sachtouris | while len(path) > 0: |
207 | fd5db045 | Stavros Sachtouris | cmd = self._all_commands[path]
|
208 | fd5db045 | Stavros Sachtouris | if cmd.is_command:
|
209 | fd5db045 | Stavros Sachtouris | return cmd
|
210 | fd5db045 | Stavros Sachtouris | path, sep, name = path.rpartition('_')
|
211 | fd5db045 | Stavros Sachtouris | return None |
212 | fd5db045 | Stavros Sachtouris | |
213 | fd5db045 | Stavros Sachtouris | if '_' not in path: |
214 | fd5db045 | Stavros Sachtouris | return None |
215 | 3dabe5d2 | Stavros Sachtouris | terms = path.split()[:-1]
|
216 | fd5db045 | Stavros Sachtouris | while len(terms) > 0: |
217 | fd5db045 | Stavros Sachtouris | tmp_path = '_'.join(terms)
|
218 | fd5db045 | Stavros Sachtouris | cmd = self._all_commands[tmp_path]
|
219 | fd5db045 | Stavros Sachtouris | if cmd.is_command:
|
220 | fd5db045 | Stavros Sachtouris | return cmd
|
221 | fd5db045 | Stavros Sachtouris | terms = terms[:-1]
|
222 | fd5db045 | Stavros Sachtouris | raise KeyError('No ancestor commands') |
223 | fd5db045 | Stavros Sachtouris | |
224 | fd5db045 | Stavros Sachtouris | def pretty_print(self, group=None): |
225 | fd5db045 | Stavros Sachtouris | if group is None: |
226 | fd5db045 | Stavros Sachtouris | for group in self.groups: |
227 | fd5db045 | Stavros Sachtouris | self.pretty_print(group)
|
228 | fd5db045 | Stavros Sachtouris | else:
|
229 | fd5db045 | Stavros Sachtouris | self.groups[group].pretty_print(recursive=True) |