svnコマンドでロールバック

コマンドラインでロールバックの方法を発見。

ロールバックそのものはできないけど、merge -> commit で似たことができる。
TortoiseSVNの「Revert changes from this revision」をと同義です。

$ svn merge -c -303 http://svn.example.com/repos/calc/trunk
U integer.c

$ svn status
M integer.c

$ svn diff
…
# verify that the change is removed
…

$ svn commit -m "Undoing change committed in r303."
Sending integer.c
Transmitting file data .
Committed revision 350.

mergeスイッチにはたくさんオプションがあって、様々なロールバックを行える。

Valid options:
  -r [--revision] ARG      : ARG (some commands also take ARG1:ARG2 range)
                             A revision argument can be one of:
                                NUMBER       revision number
                                '{' DATE '}' revision at start of the date
                                'HEAD'       latest in repository
                                'BASE'       base rev of item's working copy
                                'COMMITTED'  last commit at or before BASE
                                'PREV'       revision just before COMMITTED
  -c [--change] ARG        : the change made by revision ARG (like -r ARG-1:ARG)
                             If ARG is negative this is like -r ARG:ARG-1
  -N [--non-recursive]     : obsolete; try --depth=files or --depth=immediates
  --depth ARG              : limit operation by depth ARG ('empty', 'files',
                            'immediates', or 'infinity')
  -q [--quiet]             : print nothing, or only summary information
  --force                  : force operation to run
  --dry-run                : try operation but make no changes
  --diff3-cmd ARG          : use ARG as merge command
  --record-only            : mark revisions as merged (use with -r)
  -x [--extensions] ARG    : Default: '-u'. When Subversion is invoking an
                             external diff program, ARG is simply passed along
                             to the program. But when Subversion is using its
                             default internal diff implementation, or when
                             Subversion is displaying blame annotations, ARG
                             could be any of the following:
                                -u (--unified):
                                   Output 3 lines of unified context.
                                -b (--ignore-space-change):
                                   Ignore changes in the amount of white space.
                                -w (--ignore-all-space):
                                   Ignore all white space.
                                --ignore-eol-style:
                                   Ignore changes in EOL style
                                -p (--show-c-function):
                                   Show C function name in diff output.
  --ignore-ancestry        : ignore ancestry when calculating merges
  --accept ARG             : specify automatic conflict resolution action
                            ('postpone', 'base', 'mine-full', 'theirs-full',
                             'edit', 'launch')
  --reintegrate            : lump-merge all of source URL's unmerged changes

http://www.rustyrazorblade.com/2007/04/06/how-to-roll-back-commits-to-an-earlier-version-of-a-repository-in-svn/

あるコミットを無かったことにする方法が書いてある。
スマートではないけど、正攻法。ダウンタイムあるのが良くない
http://timhatch.com/ark/2006/04/18/howto-svn-commit-rollback


matsubokkuri

マインディアにてCTOをしています。

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