Since commit 8c1ce0f46b85d40f215084eed7313896300082df filter-branch fails when a <command> has a non-zero exit status. This commit makes it clear in the documentation and also fixes the parent-filter example, that was incorrectly returning non-zero when the commit being tested wasn't the one to be rewritten.
Signed-off-by: Caio Marcelo de Oliveira Filho <cmarcelo@gmail.com> --- Documentation/git-filter-branch.txt | 10 ++++++---- 1 files changed, 6 insertions(+), 4 deletions(-)
Show changes to Documentation/git-filter-branch.txt +6 −2
diff --git a/Documentation/git-filter-branch.txt b/Documentation/git-filter-branch.txt index e22dfa5..9cb01ca 100644 --- a/Documentation/git-filter-branch.txt +++ b/Documentation/git-filter-branch.txt @@ -56,7 +56,9 @@ notable exception of the commit filter, for technical reasons). Prior to that, the $GIT_COMMIT environment variable will be set to contain the id of the commit being rewritten. Also, GIT_AUTHOR_NAME, GIT_AUTHOR_EMAIL, GIT_AUTHOR_DATE, GIT_COMMITTER_NAME, GIT_COMMITTER_EMAIL, -and GIT_COMMITTER_DATE are set according to the current commit. +and GIT_COMMITTER_DATE are set according to the current commit. If any +evaluation of <command> returns a non-zero exit status, the whole operation +will be aborted. A 'map' function is available that takes an "original sha1 id" argument and outputs a "rewritten sha1 id" if the commit has been already @@ -195,10 +197,10 @@ the initial commit - add graftcommit as a parent). Note that this assumes history with a single root (that is, no merge without common ancestors happened). If this is not the case, use: --------------------------------------------------------------------------- +---------------------------------------------------------------------------- git filter-branch --parent-filter \ - 'cat; test $GIT_COMMIT = <commit-id> && echo "-p <graft-id>"' HEAD --------------------------------------------------------------------------- + 'test $GIT_COMMIT = <commit-id> && echo "-p <graft-id>" || cat' HEAD +---------------------------------------------------------------------------- or even simpler:
-- 1.5.4.3.221.g350ae
