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@ -20,6 +20,7 @@
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import re
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import shlex
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import syslog
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DOCUMENTATION = '''
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---
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@ -54,8 +55,13 @@ EXAMPLES = '''
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- openbsd_pkg: name=nmap state=absent
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'''
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# Control if we write debug information to syslog.
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debug = False
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# Function used for executing commands.
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def execute_command(cmd, module):
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if debug:
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syslog.syslog("execute_command(): cmd = %s" % cmd)
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# Break command line into arguments.
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# This makes run_command() use shell=False which we need to not cause shell
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# expansion of special characters like '*'.
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@ -63,33 +69,46 @@ def execute_command(cmd, module):
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return module.run_command(cmd_args)
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# Function used for getting the name of a currently installed package.
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def get_current_name(name, specific_version, module):
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def get_current_name(name, pkg_spec, module):
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info_cmd = 'pkg_info'
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(rc, stdout, stderr) = execute_command("%s" % (info_cmd), module)
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if rc != 0:
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return (rc, stdout, stderr)
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if specific_version:
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syntax = "%s"
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if pkg_spec['version']:
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pattern = "^%s" % name
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elif pkg_spec['flavor']:
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pattern = "^%s-.*-%s\s" % (pkg_spec['stem'], pkg_spec['flavor'])
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else:
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syntax = "%s-"
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pattern = "^%s-" % pkg_spec['stem']
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if debug:
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syslog.syslog("get_current_name(): pattern = %s" % pattern)
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for line in stdout.splitlines():
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if syntax % name in line:
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if debug:
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syslog.syslog("get_current_name: line = %s" % line)
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match = re.search(pattern, line)
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if match:
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current_name = line.split()[0]
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return current_name
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# Function used to find out if a package is currently installed.
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def get_package_state(name, specific_version, module):
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def get_package_state(name, pkg_spec, module):
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info_cmd = 'pkg_info -e'
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if specific_version:
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syntax = "%s %s"
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if pkg_spec['version']:
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command = "%s %s" % (info_cmd, name)
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elif pkg_spec['flavor']:
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command = "%s %s-*-%s" % (info_cmd, pkg_spec['stem'], pkg_spec['flavor'])
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else:
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syntax = "%s %s-*"
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command = "%s %s-*" % (info_cmd, pkg_spec['stem'])
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rc, stdout, stderr = execute_command(syntax % (info_cmd, name), module)
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rc, stdout, stderr = execute_command(command, module)
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if (stderr):
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module.fail_json(msg="failed in get_package_state(): " + stderr)
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if rc == 0:
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return True
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@ -97,7 +116,7 @@ def get_package_state(name, specific_version, module):
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return False
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# Function used to make sure a package is present.
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def package_present(name, installed_state, specific_version, module):
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def package_present(name, installed_state, pkg_spec, module):
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if module.check_mode:
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install_cmd = 'pkg_add -Imn'
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else:
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@ -114,12 +133,16 @@ def package_present(name, installed_state, specific_version, module):
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# When a specific version is supplied the return code will be 0 when
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# a package is found and 1 when it is not, if a version is not
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# supplied the tool will exit 0 in both cases:
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if specific_version:
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if pkg_spec['version']:
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# Depend on the return code.
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if debug:
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syslog.syslog("package_present(): depending on return code")
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if rc:
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changed=False
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else:
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# Depend on stderr instead.
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if debug:
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syslog.syslog("package_present(): depending on stderr")
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if stderr:
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# There is a corner case where having an empty directory in
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# installpath prior to the right location will result in a
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@ -129,11 +152,18 @@ def package_present(name, installed_state, specific_version, module):
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match = re.search("\W%s-[^:]+: ok\W" % name, stdout)
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if match:
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# It turns out we were able to install the package.
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if debug:
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syslog.syslog("package_present(): we were able to install package")
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pass
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else:
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# We really did fail, fake the return code.
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if debug:
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syslog.syslog("package_present(): we really did fail")
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rc = 1
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changed=False
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else:
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if debug:
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syslog.syslog("package_present(): stderr was not set")
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if rc == 0:
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if module.check_mode:
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@ -150,7 +180,7 @@ def package_present(name, installed_state, specific_version, module):
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return (rc, stdout, stderr, changed)
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# Function used to make sure a package is the latest available version.
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def package_latest(name, installed_state, specific_version, module):
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def package_latest(name, installed_state, pkg_spec, module):
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if module.check_mode:
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upgrade_cmd = 'pkg_add -umn'
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else:
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@ -160,10 +190,13 @@ def package_latest(name, installed_state, specific_version, module):
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if installed_state is True:
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# Fetch name of currently installed package
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pre_upgrade_name = get_current_name(name, specific_version, module)
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# Fetch name of currently installed package.
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pre_upgrade_name = get_current_name(name, pkg_spec, module)
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if debug:
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syslog.syslog("package_latest(): pre_upgrade_name = %s" % pre_upgrade_name)
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# Attempt to upgrade the package
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# Attempt to upgrade the package.
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(rc, stdout, stderr) = execute_command("%s %s" % (upgrade_cmd, name), module)
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# Look for output looking something like "nmap-6.01->6.25: ok" to see if
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@ -195,7 +228,9 @@ def package_latest(name, installed_state, specific_version, module):
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else:
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# If package was not installed at all just make it present.
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return package_present(name, installed_state, specific_version, module)
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if debug:
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syslog.syslog("package_latest(): package is not installed, calling package_present()")
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return package_present(name, installed_state, pkg_spec, module)
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# Function used to make sure a package is not installed.
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def package_absent(name, installed_state, module):
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@ -206,7 +241,7 @@ def package_absent(name, installed_state, module):
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if installed_state is True:
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# Attempt to remove the package
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# Attempt to remove the package.
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rc, stdout, stderr = execute_command("%s %s" % (remove_cmd, name), module)
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if rc == 0:
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@ -225,6 +260,61 @@ def package_absent(name, installed_state, module):
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return (rc, stdout, stderr, changed)
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# Function used to parse the package name based on packages-specs(7)
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# The general name structure is "stem-version[-flavors]"
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def parse_package_name(name, pkg_spec, module):
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# Do some initial matches so we can base the more advanced regex on that.
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version_match = re.search("-[0-9]", name)
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versionless_match = re.search("--", name)
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# Stop if someone is giving us a name that both has a version and is
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# version-less at the same time.
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if version_match and versionless_match:
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module.fail_json(msg="Package name both has a version and is version-less: " + name)
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# If name includes a version.
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if version_match:
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match = re.search("^(?P<stem>.*)-(?P<version>[0-9][^-]*)(?P<flavor_separator>-)?(?P<flavor>[a-z].*)?$", name)
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if match:
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pkg_spec['stem'] = match.group('stem')
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pkg_spec['version_separator'] = '-'
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pkg_spec['version'] = match.group('version')
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pkg_spec['flavor_separator'] = match.group('flavor_separator')
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pkg_spec['flavor'] = match.group('flavor')
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else:
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module.fail_json(msg="Unable to parse package name at version_match: " + name)
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# If name includes no version but is version-less ("--").
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elif versionless_match:
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match = re.search("^(?P<stem>.*)--(?P<flavor>[a-z].*)?$", name)
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if match:
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pkg_spec['stem'] = match.group('stem')
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pkg_spec['version_separator'] = '-'
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pkg_spec['version'] = None
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pkg_spec['flavor_separator'] = '-'
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pkg_spec['flavor'] = match.group('flavor')
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else:
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module.fail_json(msg="Unable to parse package name at versionless_match: " + name)
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# If name includes no version, and is not version-less, it is all a stem.
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else:
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match = re.search("^(?P<stem>.*)$", name)
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if match:
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pkg_spec['stem'] = match.group('stem')
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pkg_spec['version_separator'] = None
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pkg_spec['version'] = None
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pkg_spec['flavor_separator'] = None
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pkg_spec['flavor'] = None
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else:
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module.fail_json(msg="Unable to parse package name at else: " + name)
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# Sanity check that there are no trailing dashes in flavor.
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# Try to stop strange stuff early so we can be strict later.
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if pkg_spec['flavor']:
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match = re.search("-$", pkg_spec['flavor'])
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if match:
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module.fail_json(msg="Trailing dash in flavor: " + pkg_spec['flavor'])
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# ===========================================
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# Main control flow
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@ -247,24 +337,20 @@ def main():
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result['name'] = name
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result['state'] = state
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# Decide if the name contains a version number.
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# This regex is based on packages-specs(7).
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match = re.search("-[0-9]", name)
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if match:
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specific_version = True
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else:
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specific_version = False
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# Parse package name and put results in the pkg_spec dictionary.
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pkg_spec = {}
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parse_package_name(name, pkg_spec, module)
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# Get package state
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installed_state = get_package_state(name, specific_version, module)
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# Get package state.
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installed_state = get_package_state(name, pkg_spec, module)
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# Perform requested action
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# Perform requested action.
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if state in ['installed', 'present']:
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(rc, stdout, stderr, changed) = package_present(name, installed_state, specific_version, module)
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(rc, stdout, stderr, changed) = package_present(name, installed_state, pkg_spec, module)
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elif state in ['absent', 'removed']:
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(rc, stdout, stderr, changed) = package_absent(name, installed_state, module)
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elif state == 'latest':
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(rc, stdout, stderr, changed) = package_latest(name, installed_state, specific_version, module)
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(rc, stdout, stderr, changed) = package_latest(name, installed_state, pkg_spec, module)
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if rc != 0:
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if stderr:
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