diff --git a/packaging/yum b/packaging/yum index 61bb836b43a..8a1a59458be 100644 --- a/packaging/yum +++ b/packaging/yum @@ -28,6 +28,7 @@ import yum try: from yum.misc import find_unfinished_transactions, find_ts_remaining from rpmUtils.miscutils import splitFilename + from rpmUtils.miscutils import compareEVR transaction_helpers = True except: transaction_helpers = False @@ -38,7 +39,7 @@ module: yum version_added: historical short_description: Manages packages with the I(yum) package manager description: - - Installs, upgrade, removes, and lists packages and groups with the I(yum) package manager. + - Installs, upgrades, downgrades, removes and lists packages and groups with the I(yum) package manager. options: name: description: @@ -461,6 +462,7 @@ def install(module, items, repoq, yum_basecmd, conf_file, en_repos, dis_repos): res['msg'] = '' res['rc'] = 0 res['changed'] = False + downgrade = False for spec in items: pkg = None @@ -535,12 +537,30 @@ def install(module, items, repoq, yum_basecmd, conf_file, en_repos, dis_repos): if found: continue + + # downgrade - the yum install command will only install or upgrade to a spec version, it will + # not install an older version of an RPM even if specifed by the install spec. So we need to + # determine if this is a downgrade, and then use the yum downgrade command to install the RPM. + pkg_name = splitFilename(spec)[0] + pkgs = is_installed(module, repoq, pkg_name, conf_file, en_repos=en_repos, dis_repos=dis_repos, is_pkg=True) + if pkgs: + (cur_name, cur_ver, cur_rel, cur_epoch, cur_arch) = splitFilename(pkgs[0]) + (new_name, new_ver, new_rel, new_epoch, new_arch) = splitFilename(spec) + + compare = compareEVR((cur_epoch, cur_ver, cur_rel), (new_epoch, new_ver, new_rel)) + if compare > 0: + downgrade = True + # if not - then pass in the spec as what to install # we could get here if nothing provides it but that's not # the error we're catching here pkg = spec - cmd = yum_basecmd + ['install', pkg] + operation = 'install' + if downgrade: + operation = 'downgrade' + + cmd = yum_basecmd + [operation, pkg] if module.check_mode: module.exit_json(changed=True)