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Add check mode to git module
Related to issue #2114. This hooks in check_mode to git module. This will exit with changed=True at the following places: * If the repo has not been cloned * If the destination has local modifications, this will exit with changed=True. This is because reset() will exit anyways if there are local mods and force is False. * If the remote HEAD commit id is not the same as that of the local HEAD. This is determined by get_remote_head() that runs 'git ls-remote' to determine remote HEAD. Lastly, if this is run with check_mode enabled, this will exit with changed=False before fetch() is invoked so that no local mods are made.
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1 changed files with 26 additions and 1 deletions
27
library/git
27
library/git
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@ -103,6 +103,17 @@ def reset(module,dest,force):
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module.fail_json(msg="Local modifications exist in repository (force=no).")
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return module.run_command("git reset --hard HEAD", check_rc=True)
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def get_remote_head(module, dest, version, remote):
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if version == 'HEAD':
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version = get_head_branch(module, dest, remote)
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os.chdir(dest)
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cmd = "git ls-remote %s -h refs/heads/%s" % (remote, version)
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(rc, out, err) = module.run_command(cmd, check_rc=True)
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if len(out) < 1:
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module.fail_json(msg="Could not determine remote revision for %s" % version)
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rev = out.split()[0]
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return rev
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def get_branches(module, dest):
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os.chdir(dest)
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branches = []
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@ -224,7 +235,8 @@ def main():
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version=dict(default='HEAD'),
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remote=dict(default='origin'),
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force=dict(default='yes', type='bool')
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)
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),
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supports_check_mode=True
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)
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dest = os.path.abspath(os.path.expanduser(module.params['dest']))
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@ -242,14 +254,27 @@ def main():
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before = None
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local_mods = False
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if not os.path.exists(gitconfig):
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if module.check_mode:
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module.exit_json(changed=True)
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(rc, out, err) = clone(module, repo, dest, remote)
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else:
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# else do a pull
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local_mods = has_local_mods(dest)
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before = get_version(dest)
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# if force, do a reset
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if local_mods and module.check_mode:
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module.exit_json(changed=True, msg='Local modifications exist')
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(rc, out, err) = reset(module,dest,force)
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if rc != 0:
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module.fail_json(msg=err)
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# check or get changes from remote
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remote_head = get_remote_head(module, dest, version, remote)
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if module.check_mode:
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remote_head = remote_head[0:7]
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if before != remote_head:
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module.exit_json(changed=True, before=before, after=remote_head)
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else:
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module.exit_json(changed=False, before=before, after=remote_head)
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(rc, out, err) = fetch(module, repo, dest, version, remote)
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if rc != 0:
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module.fail_json(msg=err)
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