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Add a command line option for executing jobs
Signed-off-by: Iustin Pop <iustin@google.com>Reviewed-by: Michael Hanselmann <hansmi@google.com>
Move some more type definitions to Types.hs
Split the exernal data loader out of CLI.hs
Currently the external data loader is in CLI.hs, which makes allprograms that need cli functionality (options, etc.) link against thenetwork modules (most importantly curl). This patch splits thisfunctionality into a new module such that (for example) hail which only...
Implement support for 'cheap' moves only
This patch adds support for cheap (failover/migrate) operations only inthe balancing algorithm and in the hbal command line options.
This allows a very quick balancing (compared to allowing replace-disks)which can be useful as a scheduled operation.
Simplify the wrapIO function
This fixes one warning from hlint.
Improve the error message for command line errors
Instead of using ioError . userError, we format the error ourselves.This is nicer - no ‘)’ at the end of the output.
Add a simulated cluster data loader
This is useful especially for hspace, where we might want to simulate ahypothetical cluster to check allocation beforehand.
CLI: Handle error better
This patch adds an error handler for any exceptions that are raisedduring the external data load phase. This can be improved further, butit's a good start.
Unify the command line options and structures
This patch moves all the command line options and their internalrepresentation into CLI.hs. This means that duplicated options betweenany two binaries are no longer declared twice, and that we no longerneed the two *Option classes.
CLI: Prevent incompatible options to be selected
This patch makes CLI abort if more than one backend is selected.
Add support for luxi backend in CLI/hspace/hbal
This patch changes the backend selection method in CLI to prefer, in order: - a RAPI specification - a Luxi specification - and finally the node/instance files
It also modifies hspace and hbal to provide a ‘-L’ command line option...
Show errors on stderr instead of stdout
Currently many of the exit and warning conditions mistakenly display errormessages on stdout, which makes parsing the output of programs harder. Thispatch attempts to fix such occurrences.
Fix hlint-generated warnings
This big patch cleans up the code per hlint indications. Many removalsof extra parentheses, replacements of concat . map with concabtMap,extra dollar signs, eta reductions, etc. were performed.
The code still compiles and passes a couple of manual tests on sample...
Fix the various monomorphism warning
In a few places (e.g. tryRead or any printf call) it's a little bit hardto add the correct type signatures, but in the it is possible to fixthese warnings (which can bite one in subtle cases).
Add copyright/license information
This doc-patch adds copyright and license information to (hopefully) allneeded files.
Lots of documentation updates
This patch does only doc build changes, doc changes and function movearound (for more logical documentation). It should have no impact at allon the code.
Change the module import hierarchy
This patch makes the Types module a base module, and Node/Instance onesimport it, from the previous (opposite) situation. This will allow inthe future to use newtypes for the index and name types.
Remove the ktn/kti from second half of loading
This removes the return of ktn/kti from Loader.mergeData and associatedfunctions.
Remove some extraneous uses of ktn/kti
Since we have Node/Instance.name, we can now simplify a few constructs.
Move common loading sequence in CLI
This patch moves the common loading sequence to CLI, such that hbal/hn1and possible future scripts that take the input from same sources canuse it.
Introduce a class for CLI options
This patch generalizes a little the CLI handling by not passing in aspecial function for help and such, but instead requiring that theoptions object supports some common functionality.
Add reading the file names from env vars
This patch adds support for selecting the instance/node file names viatwo environment variables (HTOOLS_NODES, HTOOLS_INSTANCES).
Unfortunately we still have lots of duplicated code, since the optionsare not unified.
Implement writing the command list to a script
This patch adds support in hbal for writing the command list to a shellscript, with error checking and allowing for early exit.
More documentation updates
This removes most of the content of the README file (obsoleted by newalgorithm and man pages), modifies the Makefile to include the builtdocumentation in the source archive (so that haddock/hscolour are notneeded) and updates the haddock-prologue with current information.
Split common CLI functionality into a module
This patch moves the common CLI functionality (as much as currentlypossible) into a separate module. This means we only have one parseOptsand that Utils.hs doesn't keep this kind of functions anymore.