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@ -45,14 +45,6 @@ options:
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- Absolute path of where the repository should be cloned to.
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required: true
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default: null
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state:
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description:
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- C(hg clone) is performed when state is set to C(present). C(hg pull) and C(hg update) is
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performed when state is set to C(latest). If you want the latest copy of the repository,
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just rely on C(present). C(latest) assumes the repository is already on disk.
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required: false
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default: present
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choices: [ "present", "absent", "latest" ]
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revision:
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description:
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- Equivalent C(-r) option in hg command, which can either be a changeset number or a branch
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@ -61,18 +53,28 @@ options:
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default: "default"
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force:
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description:
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- Whether to discard uncommitted changes and remove untracked files or not. Basically, it
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combines C(hg up -C) and C(hg purge).
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- Discards uncommited changes. Runs c(hg update -c).
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required: false
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default: "yes"
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choices: [ "yes", "no" ]
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purge:
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description:
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- Deletes untracked files. C(hg purge) is the same as C(hg clean).
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To use this option, the C(purge = ) extension must be enabled.
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This module can edit the hgrc file on behalf of the user and
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undo the edit for you. Remember deleting untracked files is
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an irreversible action.
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required: false
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default: "no"
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choices: ["yes", "no" ]
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examples:
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- code: "hg: repo=https://bitbucket.org/user/repo_name dest=/home/user/repo_name"
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description: Clone the default branch of repo_name.
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- code: "hg: repo=https://bitbucket.org/user/repo_name dest=/home/user/repo_name force=yes state=latest"
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description: Ensure the repository at dest is latest and discard any uncommitted and/or untracked files.
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description: Clone the latest default branch from repo_name repository on Bitbucket.
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- code: "hg: repo=ssh://hg@bitbucket.org/user/repo_name dest=/home/user/repo_name"
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description: Similar to the previous one, except this uses SSH protocol.
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- code: "hg: repo=https://bitbucket.org/user/repo_name dest=/home/user/repo_name -r BRANCH_NAME
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description: Clone the repo and set the working copy to be at BRANCH_NAME
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notes:
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- If the task seems to be hanging, first verify remote host is in C(known_hosts).
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@ -84,23 +86,13 @@ notes:
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requirements: [ ]
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'''
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class HgError(Exception):
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""" Custom exception class to report hg command error. """
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def __init__(self, msg, stderr=''):
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self.msg = msg + \
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"\n\nExtra information on this error: \n" + \
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stderr
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def __str__(self):
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return self.msg
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def _set_hgrc(hgrc, vals):
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# val is a list of triple-tuple of the form [(section, option, value),...]
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parser = ConfigParser.SafeConfigParser()
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parser.read(hgrc)
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# val is a list of triple-tuple of the form [(section, option, value),...]
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for each in vals:
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section,option, value = each
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section, option, value = each
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if not parser.has_section(section):
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parser.add_section(section)
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parser.set(section, option, value)
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@ -112,7 +104,7 @@ def _set_hgrc(hgrc, vals):
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def _undo_hgrc(hgrc, vals):
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parser = ConfigParser.SafeConfigParser()
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parser.read(hgrc)
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for each in vals:
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section, option, value = each
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if parser.has_section(section):
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@ -124,137 +116,140 @@ def _undo_hgrc(hgrc, vals):
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def _hg_command(module, args_list):
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(rc, out, err) = module.run_command(['hg'] + args_list)
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return (out, err, rc)
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return (rc, out, err)
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def _hg_discard(module, dest):
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out, err, code = _hg_command(module, ['up', '-C', '-R', dest])
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if code != 0:
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raise HgError(err)
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def determine_changed(module, before, after, expecting):
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"""
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This compares the user supplied revision to the before
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and after revision (actually, id).
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get_revision calls hg id -b -i -t which returns the string
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"<changeset>[+] <branch_name> <tag>" and we compare if
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expected revision (which could be changeset,
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branch name) is part of the result string from hg id.
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"""
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def _hg_purge(module, dest):
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hgrc = os.path.join(dest, '.hg/hgrc')
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purge_option = [('extensions', 'purge', '')]
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_set_hgrc(hgrc, purge_option)
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out, err, code = _hg_command(module, ['purge', '-R', dest])
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if code == 0:
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_undo_hgrc(hgrc, purge_option)
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# some custom error messages
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err1 = "no changes found. You supplied {0} but repo is \
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currently at {1}".format(expecting, after)
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err2 = "Unknown error. The state before operation was {0},\
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after the operation was {1}, but we were expecting \
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{2} as part of the state.".format(before, after, expecting)
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# if before and after are equal, only two possible explainations
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# case one: when current working copy is already what user want
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# case two: when current working copy is ahead of what user want
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# in case two, hg will exist successfully
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if before == after and expecting in after:
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return module.exit_json(changed=False, before=before, after=after)
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elif before == after and not expecting in after: # this is case two
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return module.fail_json(msg=err2)
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elif before != after and expecting in after: # bingo. pull and update to expecting
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return module.exit_json(changed=True, before=before, after=after)
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else:
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raise HgError(err)
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def _hg_verify(module, dest):
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error1 = "hg verify failed."
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error2 = "{dest} is not a repository.".format(dest=dest)
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return module.fail_json(msg=err2)
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out, err, code = _hg_command(module, ['verify', '-R', dest])
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if code == 1:
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raise HgError(error1, stderr=err)
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elif code == 255:
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raise HgError(error2, stderr=err)
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elif code == 0:
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return True
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def _post_op_hg_revision_check(module, dest, revision):
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def get_revision(module, dest):
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"""
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Verify the tip is the same as `revision`.
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This function is usually called after some hg operations
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such as `clone`. However, this check is skipped if `revision`
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is the string `default` since it will result an error.
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Instead, pull is performed.
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hg id -b -i -t returns a string in the format:
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"<changeset>[+] <branch_name> <tag>"
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This format lists the state of the current working copy,
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and indicates whether there are uncommitted changes by the
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plus sign. Otherwise, the sign is omitted.
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Read the full description via hg id --help
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"""
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(rc, out, err) = _hg_command(module, ['id', '-b', '-i', '-t', '-R', dest])
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return out.strip('\n')
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err1 = "Unable to perform hg tip."
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err2 = "tip is different from %s. See below for extended summary." % revision
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if revision == 'default':
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out, err, code = _hg_command(module, ['pull', '-R', dest])
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if "no changes found" in out:
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def has_local_mods(module, dest):
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(rc, out, err) = get_revision(module, dest)
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if rc == 0:
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if '+' in out:
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return True
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else:
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raise HgError(err2, stderr=out)
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return False
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else:
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out, err, code = _hg_command(module, ['tip', '-R', dest])
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if revision in out: # revision should be part of the output (changeset: $revision ...)
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return True
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else:
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if code != 0: # something went wrong with hg tip
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raise HgError(err1, stderr=err)
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else: # hg tip is fine, but tip != revision
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raise HgError(err2, stderr=out)
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module.fail_json(msg=err)
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def force_and_clean(module, dest):
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_hg_discard(module, dest)
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_hg_purge(module, dest)
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def hg_discard(module, dest, force):
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if not force and has_local_mods(module, dest):
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module.fail_json(msg="Respository has uncommited changes.")
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(rc, out, err) = _hg_command(module, ['update', '-C', '-R', dest])
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return (rc, out, err)
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def pull_and_update(module, repo, dest, revision, force):
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if force == 'yes':
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force_and_clean(module, dest)
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if _hg_verify(module, dest):
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cmd1 = ['pull', '-R', dest, '-r', revision]
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out, err, code = _hg_command(module, cmd1)
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def hg_purge(module, dest):
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hgrc = os.path.join(dest, '.hg/hgrc')
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purge_option = [('extensions', 'purge', '')]
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_set_hgrc(hgrc, purge_option) # hg purge requires purge extension
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(rc, out, err) = _hg_command(module, ['purge', '-R', dest])
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if rc == 0:
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_undo_hgrc(hgrc, purge_option)
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else:
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module.fail_json(msg=err)
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if code == 1:
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raise HgError("Unable to perform pull on %s" % dest, stderr=err)
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elif code == 0:
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cmd2 = ['update', '-R', dest, '-r', revision]
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out, err, code = _hg_command(module, cmd2)t
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if code == 1:
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raise HgError("There are unresolved files in %s" % dest, stderr=err)
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elif code == 0:
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# so far pull and update seems to be working, check revision and $revision are equal
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_post_op_hg_revision_check(module, dest, revision)
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return True
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# when code aren't 1 or 0 in either command
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raise HgError("", stderr=err)
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def hg_pull(module, dest, revision):
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(rc, out, err) = _hg_command(module, ['pull', '-r', revision, '-R', dest])
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return (rc, out, err)
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def clone(module, repo, dest, revision, force):
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if os.path.exists(dest):
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if _hg_verify(module, dest): # make sure it's a real repo
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if _post_op_hg_revision_check(module, dest, revision): # make sure revision and $revision are equal
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if force == 'yes':
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force_and_clean(module, dest)
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return False
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def hg_update(module, dest, revision):
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(rc, out, err) = _hg_command(module, ['update', '-R', dest])
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return (rc, out, err)
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cmd = ['clone', repo, dest, '-r', revision]
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out, err, code = _hg_command(module, cmd)
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if code == 0:
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_hg_verify(module, dest)
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_post_op_hg_revision_check(module, dest, revision)
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return True
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else:
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raise HgError(err, stderr='')
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def hg_clone(module, repo, dest, revision):
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return _hg_command(module, ['clone', repo, dest, '-r', revision])
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def main():
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module = AnsibleModule(
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argument_spec = dict(
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repo = dict(required=True),
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dest = dict(required=True),
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state = dict(default='present', choices=['present', 'absent', 'latest']),
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revision = dict(default="default"),
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force = dict(default='yes', choices=['yes', 'no']),
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purge = dict(default='no', choices=['yes', 'no'])
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),
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)
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repo = module.params['repo']
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state = module.params['state']
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dest = module.params['dest']
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revision = module.params['revision']
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force = module.params['force']
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try:
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if state == 'absent':
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if not os.path.exists(dest):
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shutil.rmtree(dest)
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changed = True
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elif state == 'present':
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changed = clone(module, repo, dest, revision, force)
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elif state == 'latest':
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changed = pull_and_update(module, repo, dest, revision, force)
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module.exit_json(dest=dest, changed=changed)
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except Exception as e:
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module.fail_json(msg=str(e), params=module.params)
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force = module.boolean(module.params['force'])
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purge = module.boolean(module.params['purge'])
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hgrc = os.path.join(dest, '.hg/hgrc')
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# If there is no hgrc file, then assume repo is absent
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# and perform clone. Otherwise, perform pull and update.
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if not os.path.exists(hgrc):
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before = ''
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(rc, out, err) = hg_clone(module, repo, dest, revision)
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if rc != 0:
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module.fail_json(msg=err)
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after = get_revision(module, dest)
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determine_changed(module, before, after, revision)
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else:
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# get the current state before doing pulling
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before = get_revision(module, dest)
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# calls hg update -C and abort when uncommited changes
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# are present if force=no
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(rc, out, err) = hg_discard(module, dest, force)
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if rc != 0:
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module.fail_json(msg=err)
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if purge:
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hg_purge(module, dest)
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(rc, out, err) = hg_pull(module, dest, revision)
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if rc != 0:
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module.fail_json(msg=err)
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(rc, out, err) = hg_update(module, dest, revision)
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if rc != 0:
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module.fail_json(msg=err)
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after = get_revision(module, dest)
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determine_changed(module, before, after, revision)
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# include magic from lib/ansible/module_common.py
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#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
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