#!/usr/bin/python # -*- coding: utf-8 -*- # Copyright: (c) 2013, Yeukhon Wong <yeukhon@acm.org> # Copyright: (c) 2014, Nate Coraor <nate@bx.psu.edu> # GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt) from __future__ import absolute_import, division, print_function __metaclass__ = type ANSIBLE_METADATA = {'metadata_version': '1.1', 'status': ['preview'], 'supported_by': 'community'} DOCUMENTATION = ''' --- module: hg short_description: Manages Mercurial (hg) repositories description: - Manages Mercurial (hg) repositories. Supports SSH, HTTP/S and local address. author: "Yeukhon Wong (@yeukhon)" options: repo: description: - The repository address. required: yes aliases: [ name ] dest: description: - Absolute path of where the repository should be cloned to. This parameter is required, unless clone and update are set to no required: yes revision: description: - Equivalent C(-r) option in hg command which could be the changeset, revision number, branch name or even tag. aliases: [ version ] force: description: - Discards uncommitted changes. Runs C(hg update -C). Prior to 1.9, the default was `yes`. type: bool default: 'no' purge: description: - Deletes untracked files. Runs C(hg purge). type: bool default: 'no' update: description: - If C(no), do not retrieve new revisions from the origin repository type: bool default: 'yes' clone: description: - If C(no), do not clone the repository if it does not exist locally. type: bool default: 'yes' executable: description: - Path to hg executable to use. If not supplied, the normal mechanism for resolving binary paths will be used. notes: - This module does not support push capability. See U(https://github.com/ansible/ansible/issues/31156). - "If the task seems to be hanging, first verify remote host is in C(known_hosts). SSH will prompt user to authorize the first contact with a remote host. To avoid this prompt, one solution is to add the remote host public key in C(/etc/ssh/ssh_known_hosts) before calling the hg module, with the following command: ssh-keyscan remote_host.com >> /etc/ssh/ssh_known_hosts." - As per 01 Dec 2018, Bitbucket has dropped support for TLSv1 and TLSv1.1 connections. As such, if the underlying system still uses a Python version below 2.7.9, you will have issues checking out bitbucket repositories. See U(https://bitbucket.org/blog/deprecating-tlsv1-tlsv1-1-2018-12-01). ''' EXAMPLES = ''' - name: Ensure the current working copy is inside the stable branch and deletes untracked files if any. hg: repo: https://bitbucket.org/user/repo1 dest: /home/user/repo1 revision: stable purge: yes - name: Get information about the repository whether or not it has already been cloned locally. hg: repo: git://bitbucket.org/user/repo dest: /srv/checkout clone: no update: no ''' import os from ansible.module_utils.basic import AnsibleModule from ansible.module_utils._text import to_native class Hg(object): def __init__(self, module, dest, repo, revision, hg_path): self.module = module self.dest = dest self.repo = repo self.revision = revision self.hg_path = hg_path def _command(self, args_list): (rc, out, err) = self.module.run_command([self.hg_path] + args_list) return (rc, out, err) def _list_untracked(self): args = ['purge', '--config', 'extensions.purge=', '-R', self.dest, '--print'] return self._command(args) def get_revision(self): """ hg id -b -i -t returns a string in the format: "<changeset>[+] <branch_name> <tag>" This format lists the state of the current working copy, and indicates whether there are uncommitted changes by the plus sign. Otherwise, the sign is omitted. Read the full description via hg id --help """ (rc, out, err) = self._command(['id', '-b', '-i', '-t', '-R', self.dest]) if rc != 0: self.module.fail_json(msg=err) else: return to_native(out).strip('\n') def get_remote_revision(self): (rc, out, err) = self._command(['id', self.repo]) if rc != 0: self.module.fail_json(msg=err) else: return to_native(out).strip('\n') def has_local_mods(self): now = self.get_revision() if '+' in now: return True else: return False def discard(self): before = self.has_local_mods() if not before: return False args = ['update', '-C', '-R', self.dest, '-r', '.'] (rc, out, err) = self._command(args) if rc != 0: self.module.fail_json(msg=err) after = self.has_local_mods() if before != after and not after: # no more local modification return True def purge(self): # before purge, find out if there are any untracked files (rc1, out1, err1) = self._list_untracked() if rc1 != 0: self.module.fail_json(msg=err1) # there are some untrackd files if out1 != '': args = ['purge', '--config', 'extensions.purge=', '-R', self.dest] (rc2, out2, err2) = self._command(args) if rc2 != 0: self.module.fail_json(msg=err2) return True else: return False def cleanup(self, force, purge): discarded = False purged = False if force: discarded = self.discard() if purge: purged = self.purge() if discarded or purged: return True else: return False def pull(self): return self._command( ['pull', '-R', self.dest, self.repo]) def update(self): if self.revision is not None: return self._command(['update', '-r', self.revision, '-R', self.dest]) return self._command(['update', '-R', self.dest]) def clone(self): if self.revision is not None: return self._command(['clone', self.repo, self.dest, '-r', self.revision]) return self._command(['clone', self.repo, self.dest]) @property def at_revision(self): """ There is no point in pulling from a potentially down/slow remote site if the desired changeset is already the current changeset. """ if self.revision is None or len(self.revision) < 7: # Assume it's a rev number, tag, or branch return False (rc, out, err) = self._command(['--debug', 'id', '-i', '-R', self.dest]) if rc != 0: self.module.fail_json(msg=err) if out.startswith(self.revision): return True return False # =========================================== def main(): module = AnsibleModule( argument_spec=dict( repo=dict(type='str', required=True, aliases=['name']), dest=dict(type='path'), revision=dict(type='str', default=None, aliases=['version']), force=dict(type='bool', default=False), purge=dict(type='bool', default=False), update=dict(type='bool', default=True), clone=dict(type='bool', default=True), executable=dict(type='str', default=None), ), ) repo = module.params['repo'] dest = module.params['dest'] revision = module.params['revision'] force = module.params['force'] purge = module.params['purge'] update = module.params['update'] clone = module.params['clone'] hg_path = module.params['executable'] or module.get_bin_path('hg', True) if dest is not None: hgrc = os.path.join(dest, '.hg/hgrc') # initial states before = '' changed = False cleaned = False if not dest and (clone or update): module.fail_json(msg="the destination directory must be specified unless clone=no and update=no") hg = Hg(module, dest, repo, revision, hg_path) # If there is no hgrc file, then assume repo is absent # and perform clone. Otherwise, perform pull and update. if not clone and not update: out = hg.get_remote_revision() module.exit_json(after=out, changed=False) if not os.path.exists(hgrc): if clone: (rc, out, err) = hg.clone() if rc != 0: module.fail_json(msg=err) else: module.exit_json(changed=False) elif not update: # Just return having found a repo already in the dest path before = hg.get_revision() elif hg.at_revision: # no update needed, don't pull before = hg.get_revision() # but force and purge if desired cleaned = hg.cleanup(force, purge) else: # get the current state before doing pulling before = hg.get_revision() # can perform force and purge cleaned = hg.cleanup(force, purge) (rc, out, err) = hg.pull() if rc != 0: module.fail_json(msg=err) (rc, out, err) = hg.update() if rc != 0: module.fail_json(msg=err) after = hg.get_revision() if before != after or cleaned: changed = True module.exit_json(before=before, after=after, changed=changed, cleaned=cleaned) if __name__ == '__main__': main()