├── CHANGELOG.md ├── CONTRIBUTORS.md ├── LICENSE ├── README.md ├── etc └── yum │ └── pluginconf.d │ └── replace.conf └── lib └── yum-plugins └── replace.py /CHANGELOG.md: -------------------------------------------------------------------------------- 1 | # Change Log 2 | 3 | ## Sep 24, 2012 - 0.2.5 4 | 5 | - Attempt to auto resolve when multiple provides are found 6 | 7 | 8 | ## Aug 10, 2010 - 0.2.4 9 | 10 | - Only run 'postresolve_hook' if 'replace' was passed at command line 11 | 12 | 13 | ## Aug 06, 2010 - 0.2.2 14 | 15 | - Resolve LP#120106 Yum RHN auto-updates broken 16 | 17 | 18 | ## Jul 30, 2010 - 0.2 19 | 20 | - Resolve issue where dependencies are removed, but not reinstalled when upgraded packages are installed. 21 | 22 | 23 | ## Jul 12, 2010 - 0.1 24 | 25 | - Initial beta/functional release 26 | 27 | -------------------------------------------------------------------------------- /CONTRIBUTORS.md: -------------------------------------------------------------------------------- 1 | The following people have contributed to this project: 2 | 3 | - BJ Dierkes (derks) - *creator* 4 | - Ben Harper (b-harper) - *maintainer* 5 | - Andy Thompson (andytson) 6 | - isikyus 7 | 8 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 2, June 1991 3 | 4 | Copyright (C) 1989, 1991 Free Software Foundation, Inc., 5 | 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 6 | Everyone is permitted to copy and distribute verbatim copies 7 | of this license document, but changing it is not allowed. 8 | 9 | Preamble 10 | 11 | The licenses for most software are designed to take away your 12 | freedom to share and change it. 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IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 271 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR 272 | REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, 273 | INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING 274 | OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED 275 | TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY 276 | YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER 277 | PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE 278 | POSSIBILITY OF SUCH DAMAGES. 279 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Package Replacement Plugin for Yum 2 | 3 | This plugin enables the ability to replace an installed package, with another package that provides the same thing. It was developed specifically for the [IUS Community Project](https://ius.io) whose packages have alternative names as to not automatically upgrade stock packages. They also do not Obsolete the packages they provide, therefore making upgrading a little bit more tedious. For example upgrading `mysql` to `mysql50` or `mysql51` requires first uninstalling `mysql` and then installing the alternate package name. An alternative is using the yum shell allowing you do uninstall, and install packages in one operation. 4 | 5 | This plugin allows the end user to replace a package with another in the following fashion: 6 | 7 | ``` 8 | $ yum replace mysql --replace-with mysql51 9 | ``` 10 | 11 | 12 | The plugin first determines what `mysql` (or the original package) provides and then verifies that the alternative package (`mysql51`) also provides the same. It continues to determine what other sub-packages of `mysql` are installed and then determines the replacement package from the `mysql51` set, also ensuring that the new package has the same 'provides'. 13 | 14 | If a package does not meet the 'providers' requirements the process will halt and ask for user approval to continue. Then end user can optionally pass `-y` to assume yes to this inquiry. It should be noted that it is quite common that a newer 'replacement' package would not fully provide everything that the original package did. 15 | 16 | 17 | ## Source Code and Bug Tracking 18 | 19 | The source code for yum-plugin-replace is currently hosted on [GitHub](https://github.com/iuscommunity/yum-plugin-replace). All bugs/feature requests can be reported there. 20 | 21 | 22 | ## License 23 | 24 | This plugin is Open Source and released under the [GNU GPLv2](https://opensource.org/licenses/gpl-2.0.php). Please see the LICENSE file that came with this source. 25 | 26 | -------------------------------------------------------------------------------- /etc/yum/pluginconf.d/replace.conf: -------------------------------------------------------------------------------- 1 | [main] 2 | enabled=1 3 | -------------------------------------------------------------------------------- /lib/yum-plugins/replace.py: -------------------------------------------------------------------------------- 1 | # This program is free software; you can redistribute it and/or modify 2 | # it under the terms of the GNU General Public License as published by 3 | # the Free Software Foundation; either version 2 of the License, or 4 | # (at your option) any later version. 5 | # 6 | # This program is distributed in the hope that it will be useful, 7 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 8 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 9 | # GNU Library General Public License for more details. 10 | # 11 | # You should have received a copy of the GNU General Public License 12 | # along with this program; if not, write to the Free Software 13 | # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 14 | # 15 | # by BJ Dierkes 16 | 17 | #----------------------------------------------------------------------------- 18 | 19 | import re 20 | import sys 21 | import logging 22 | import platform 23 | 24 | from yum.plugins import TYPE_CORE, TYPE_INTERACTIVE 25 | from yum.Errors import UpdateError, RemoveError 26 | from yum.constants import PLUG_OPT_STRING, PLUG_OPT_WHERE_ALL 27 | from yumcommands import checkRootUID, checkGPGKey 28 | 29 | requires_api_version = '2.6' 30 | plugin_type = (TYPE_CORE, TYPE_INTERACTIVE) 31 | 32 | global pkgs_to_not_remove, pkgs_to_remove 33 | pkgs_to_remove = [] 34 | 35 | def config_hook(conduit): 36 | "Add options to Yums configuration." 37 | parser = conduit.getOptParser() 38 | 39 | parser.add_option('--replace-with', dest='replace_with', action='store', 40 | metavar='BASEPKG', help="name of the base package to replace with") 41 | 42 | reg = conduit.registerCommand 43 | conduit.registerCommand(ReplaceCommand(['replace'])) 44 | 45 | def postresolve_hook(conduit): 46 | """ 47 | Remove any un-necessary package erasures. I.e. perl-DBD-MySQL when 48 | the 'mysql' packages gets removed before the mysql5x package gets 49 | installed. 50 | """ 51 | 52 | try: 53 | # only perform our operations (hacks) if replace command was called. 54 | if conduit.getCmdLine()[1][0] != 'replace': 55 | return 56 | except IndexError, e: 57 | # yum not called from command line? 58 | return 59 | 60 | global pkgs_to_remove 61 | TsInfo = conduit.getTsInfo() 62 | for i in TsInfo: 63 | if i.ts_state == 'e' and i.po not in pkgs_to_remove: 64 | TsInfo.remove(i.pkgtup) 65 | 66 | class ReplaceCommand(object): 67 | def __init__(self, names): 68 | self.names = names 69 | 70 | def getNames(self): 71 | return self.names 72 | 73 | def getUsage(self): 74 | return "[PACKAGE]" 75 | 76 | def getSummary(self): 77 | return """\ 78 | Replace a package with another that provides the same thing""" 79 | 80 | def doCheck(self, base, basecmd, extcmds): 81 | checkRootUID(base) 82 | checkGPGKey(base) 83 | 84 | def doCommand(self, base, basecmd, extcmds): 85 | logger = logging.getLogger("yum.verbose.main") 86 | print "Replacing packages takes time, please be patient..." 87 | global pkgs_to_remove 88 | pkgs_to_install = [] 89 | pkgs_to_not_remove = [] 90 | deps_to_resolve = [] 91 | pkgs_with_same_srpm = [] 92 | 93 | def msg(x): 94 | logger.log(logginglevels.INFO_2, x) 95 | def msg_warn(x): 96 | logger.warn(x) 97 | 98 | 99 | opts = base.plugins.cmdline[0] 100 | if len(base.plugins.cmdline[1]) <= 1: 101 | raise UpdateError, "Must specify a package to be replaced (i.e yum replace pkg --replace-with pkgXY)" 102 | if not opts.replace_with: 103 | raise UpdateError, "Replacement package name required (--replace-with)" 104 | 105 | orig_pkg = base.plugins.cmdline[1][1] 106 | new_pkg = opts.replace_with 107 | 108 | if not base.isPackageInstalled(orig_pkg): 109 | raise RemoveError, "Package '%s' is not installed." % orig_pkg 110 | 111 | # get pkg object 112 | res = base.rpmdb.searchNevra(name=orig_pkg) 113 | if len(res) > 1: 114 | raise RemoveError, \ 115 | "Multiple packages found matching '%s'. Please remove manually." % \ 116 | orig_pkg 117 | orig_pkgobject = res[0] 118 | pkgs_to_remove.append(orig_pkgobject) 119 | 120 | # find all other installed packages with same srpm (orig_pkg's subpackages) 121 | for pkg in base.rpmdb: 122 | if pkg.sourcerpm == orig_pkgobject.sourcerpm: 123 | pkgs_to_remove.append(pkg) 124 | for dep in pkg.provides_names: 125 | deps_to_resolve.append(dep) 126 | 127 | # get new pkg object 128 | new_pkgs = [] 129 | res = base.pkgSack.returnNewestByName(new_pkg) 130 | for i in res: 131 | if platform.machine() == i.arch: 132 | if i not in new_pkgs: 133 | new_pkgs.append(i) 134 | 135 | # if no archs matched (maybe a i686 / i386 issue) then pass them all 136 | if len(new_pkgs) == 0: 137 | new_pkgs = res 138 | 139 | # clean up duplicates, for some reason yum creates duplicate package objects 140 | # that are the same, but different object ref so they don't compare. here 141 | # we compare against returnEVR(). 142 | final_pkgs = [] 143 | for i in new_pkgs: 144 | add = True 145 | for i2 in final_pkgs: 146 | if i.returnEVR() == i2.returnEVR() and i.arch == i2.arch: 147 | add = False 148 | if add and i not in final_pkgs: 149 | final_pkgs.append(i) 150 | 151 | if len(final_pkgs) > 1: 152 | raise UpdateError, \ 153 | "Multiple packages found matching '%s'. Please upgrade manually." % \ 154 | new_pkg 155 | new_pkgobject = new_pkgs[0] 156 | pkgs_to_install.append(new_pkgobject) 157 | 158 | orig_prefix = orig_pkg 159 | new_prefix = new_pkg 160 | 161 | # Find the original and new prefixes of packages based on their sourcerpm name 162 | m = re.match('(.*)-%s-%s' % (orig_pkgobject.version, orig_pkgobject.release),\ 163 | orig_pkgobject.sourcerpm) 164 | if m: 165 | orig_prefix = m.group(1) 166 | 167 | m = re.match('(.*)-%s-%s' % (new_pkgobject.version, new_pkgobject.release),\ 168 | new_pkgobject.sourcerpm) 169 | if m: 170 | new_prefix = m.group(1) 171 | 172 | # don't remove pkgs that rely on orig_pkg (yum tries to remove them) 173 | for pkg in base.rpmdb: 174 | for req in pkg.requires_names: 175 | if req in deps_to_resolve: 176 | if pkg not in pkgs_to_not_remove and pkg not in pkgs_to_remove: 177 | pkgs_to_not_remove.append(pkg) 178 | 179 | # determine all new_pkg subpackages that provide missing deps 180 | providers = {} 181 | for pkg in base.pkgSack: 182 | if pkg.sourcerpm == new_pkgobject.sourcerpm: 183 | pkgs_with_same_srpm.append(pkg) 184 | for dep in pkg.provides_names: 185 | if dep in deps_to_resolve: 186 | if pkg not in pkgs_to_remove: 187 | 188 | # build a list of all packages matching provides 189 | if not providers.has_key(dep): 190 | providers[dep] = [] 191 | providers[dep].append(pkg) 192 | 193 | # We now have a complete list of package providers we care about 194 | if providers: 195 | resolved = False 196 | for key, pkgs in providers.items(): 197 | if len(pkgs) == 1: 198 | pkgs_to_install.append(pkgs[0]) 199 | deps_to_resolve.remove(key) 200 | resolved = True 201 | 202 | elif len(pkgs) > 1: 203 | # Attempt to auto resolve multiple provides 204 | for rpkg in pkgs_to_remove: 205 | npkg = rpkg.name.replace(orig_prefix, new_prefix) 206 | for pkg in pkgs: 207 | if npkg == pkg.name: 208 | pkgs_to_install.append(pkg) 209 | resolved = True 210 | 211 | # we've completed our auto resolve, 212 | # if resolved lets remove the key 213 | if resolved: 214 | deps_to_resolve.remove(key) 215 | 216 | if not resolved: 217 | print '\nWARNING: Multiple Providers found for %s' % key 218 | print " %s" % [str(i) for i in pkgs] 219 | 220 | # remove the dep from dict since it should be handled. 221 | del(providers[key]) 222 | 223 | # This is messy: determine if any of the pkgs_to_not_remove have 224 | # counterparts as part of same 'base name' set (but different srpm, i.e. 225 | # php and php-pear has different source rpms but you want phpXY-pear too). 226 | while pkgs_to_not_remove: 227 | pkg = pkgs_to_not_remove.pop() 228 | m = re.match('%s-(.*)' % orig_prefix, pkg.name) 229 | if not m: 230 | continue 231 | replace_name = "%s-%s" % (new_prefix, m.group(1)) 232 | for pkg2 in base.pkgSack: 233 | if pkg2.name == replace_name: 234 | if pkg not in pkgs_to_remove: 235 | pkgs_to_remove.append(pkg) 236 | if pkg in pkgs_to_not_remove: 237 | pkgs_to_not_remove.remove(pkg) 238 | if pkg2 not in pkgs_to_install: 239 | pkgs_to_install.append(pkg2) 240 | if pkg2 in pkgs_to_not_remove: 241 | pkgs_to_not_remove.remove(pkg2) 242 | 243 | # clean up duplicates (multiple versions) 244 | _pkgs_to_install = [] 245 | for pkg in pkgs_to_install: 246 | latest_pkg = base.pkgSack.returnNewestByName(pkg.name)[0] 247 | if latest_pkg not in _pkgs_to_install: 248 | _pkgs_to_install.append(latest_pkg) 249 | pkgs_to_install = _pkgs_to_install 250 | 251 | # Its common that newer/replacement packages won't provide all the same things. 252 | # Give the user the chance to bail if they are scared. 253 | if len(deps_to_resolve) > 0: 254 | print 255 | print "WARNING: Unable to resolve all providers: %s" % deps_to_resolve 256 | print 257 | if not opts.assumeyes: 258 | res = raw_input("This may be normal depending on the package. Continue? [y/N] ") 259 | if not res.strip('\n').lower() in ['y', 'yes']: 260 | sys.exit(1) 261 | 262 | # remove old packages 263 | for pkg in pkgs_to_remove: 264 | base.remove(pkg) 265 | # install new/replacement packages 266 | for pkg in pkgs_to_install: 267 | base.install(pkg) 268 | 269 | return 2, ["Run transaction to replace '%s' with '%s'" % (orig_pkg, new_pkg)] 270 | 271 | --------------------------------------------------------------------------------