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openbsd_pkg: support "pkgname%branch" syntax.
* Such package names requires at least OpenBSD 6.0. * Rework get_package_state() to use 'pkg_info -Iq inst:' instead of 'pkg_info -e' because it understands the branch syntax. It also means we can get rid of some additional special handling. This was suggested by Marc Espie: http://marc.info/?l=openbsd-tech&m=146659756711614&w=2 * Drop get_current_name() because the use of 'pkg_info -Iq inst:' in get_package_state() means we already have that information available without needing to do custom parsing. This was also necessary because a name such as "postfix%stable" does not in itself contain the version information necessary for the custom parsing. pkg_info -Iq translates such a name to the actual package name seamlessly. * Add support for finding more than one package for the supplied package name which may happen if we only supply a stem.
This commit is contained in:
Patrik Lundin
Matt Clay
parent
c2deb92f62
commit
f686994af6
1 changed files with 48 additions and 47 deletions
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@ -19,10 +19,13 @@
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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import os
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import platform
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import re
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import shlex
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import sqlite3
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from distutils.version import StrictVersion
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DOCUMENTATION = '''
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---
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module: openbsd_pkg
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@ -82,6 +85,9 @@ EXAMPLES = '''
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# Specify the default flavour to avoid ambiguity errors
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- openbsd_pkg: name=vim-- state=present
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# Specify a package branch (requires at least OpenBSD 6.0)
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- openbsd_pkg: name=python%3.5 state=present
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# Update all packages on the system
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- openbsd_pkg: name=* state=latest
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'''
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@ -94,47 +100,22 @@ def execute_command(cmd, module):
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cmd_args = shlex.split(cmd)
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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, 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 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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pattern = "^%s-" % pkg_spec['stem']
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module.debug("get_current_name(): pattern = %s" % pattern)
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for line in stdout.splitlines():
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module.debug("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, pkg_spec, module):
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info_cmd = 'pkg_info -e'
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info_cmd = 'pkg_info -Iq'
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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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command = "%s %s-*" % (info_cmd, pkg_spec['stem'])
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command = "%s inst:%s" % (info_cmd, name)
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rc, stdout, stderr = execute_command(command, module)
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if (stderr):
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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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if stdout:
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# If the requested package name is just a stem, like "python", we may
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# find multiple packages with that name.
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pkg_spec['installed_names'] = [line.rstrip() for line in stdout.splitlines()]
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module.debug("get_package_state(): installed_names = %s" % pkg_spec['installed_names'])
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return True
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else:
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return False
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@ -173,8 +154,14 @@ def package_present(name, installed_state, pkg_spec, module):
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# specific version is supplied or not.
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#
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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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# 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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#
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# It is important to note that "version" relates to the
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# packages-specs(7) notion of a version. If using the branch syntax
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# (like "python%3.5") the version number is considered part of the
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# stem, and the pkg_add behavior behaves the same as if the name did
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# not contain a version (which it strictly speaking does not).
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if pkg_spec['version'] or build is True:
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# Depend on the return code.
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module.debug("package_present(): depending on return code")
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@ -231,25 +218,21 @@ def package_latest(name, installed_state, pkg_spec, 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, pkg_spec, module)
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module.debug("package_latest(): pre_upgrade_name = %s" % pre_upgrade_name)
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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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# something changed (or would have changed). Use \W to delimit the match
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# from progress meter output.
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match = re.search("\W%s->.+: ok\W" % pre_upgrade_name, stdout)
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changed = False
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for installed_name in pkg_spec['installed_names']:
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module.debug("package_latest(): checking for pre-upgrade package name: %s" % installed_name)
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match = re.search("\W%s->.+: ok\W" % installed_name, stdout)
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if match:
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if module.check_mode:
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module.exit_json(changed=True)
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changed = True
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else:
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changed = False
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# FIXME: This part is problematic. Based on the issues mentioned (and
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# handled) in package_present() it is not safe to blindly trust stderr
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@ -301,7 +284,12 @@ def package_absent(name, installed_state, module):
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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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#
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# Names containing "%" are a special variation not part of the
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# packages-specs(7) syntax. See pkg_add(1) on OpenBSD 6.0 or later for a
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# description.
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def parse_package_name(name, pkg_spec, module):
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module.debug("parse_package_name(): parsing name: %s" % name)
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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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@ -350,6 +338,19 @@ def parse_package_name(name, pkg_spec, module):
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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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# If the stem contains an "%" then it needs special treatment.
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branch_match = re.search("%", pkg_spec['stem'])
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if branch_match:
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branch_release = "6.0"
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if version_match or versionless_match:
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module.fail_json(msg="Package name using 'branch' syntax also has a version or is version-less: " + name)
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if StrictVersion(platform.release()) < StrictVersion(branch_release):
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module.fail_json(msg="Package name using 'branch' syntax requires at least OpenBSD %s: %s" % (branch_release, name))
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pkg_spec['style'] = 'branch'
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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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