[PATCH] git-svn: teach find-rev to find near matches
- From
John Keeping <john@keeping.me.uk>
- Date
- Jan 17, 2013, 22:19 UTC
- Message-ID
- <20130117221933.GK4574@serenity.lan>
When a single SVN repository is split into multiple Git repositories many SVN revisions will exist in only one of the Git repositories created. For some projects the only way to build a working artifact is to check out corresponding versions of various repositories, with no indication of what those are in the Git world - in the SVN world the revision numbers are sufficient.
By adding "--before" to "git-svn find-rev" we can say "tell me what this repository looked like when that other repository looked like this":
git svn find-rev --before \
r$(git --git-dir=/over/there.git svn find-rev HEAD)Signed-off-by: John Keeping <john@keeping.me.uk> --- Documentation/git-svn.txt | 10 ++++++++++ git-svn.perl | 12 ++++++++++-- 2 files changed, 20 insertions(+), 2 deletions(-)
diff --git a/Documentation/git-svn.txt b/Documentation/git-svn.txt index 69decb1..34d438b 100644 --- a/Documentation/git-svn.txt +++ b/Documentation/git-svn.txt @@ -346,6 +346,16 @@ Any other arguments are passed directly to 'git log' corresponding git commit hash (this can optionally be followed by a tree-ish to specify which branch should be searched). When given a tree-ish, returns the corresponding SVN revision number. ++ +--before;; + Don't require an exact match if given an SVN revision, instead find + the commit corresponding to the state of the SVN repository (on the + current branch) at the specified revision. ++ +--after;; + Don't require an exact match if given an SVN revision; if there is + not an exact match return the closest match searching forward in the + history. 'set-tree':: You should consider using 'dcommit' instead of this command. diff --git a/git-svn.perl b/git-svn.perl index bd5266c..d086694 100755 --- a/git-svn.perl +++ b/git-svn.perl @@ -114,6 +114,7 @@ my ($_stdin, $_help, $_edit, $_message, $_file, $_branch_dest, $_template, $_shared, $_version, $_fetch_all, $_no_rebase, $_fetch_parent, + $_before, $_after, $_merge, $_strategy, $_preserve_merges, $_dry_run, $_local, $_prefix, $_no_checkout, $_url, $_verbose, $_commit_url, $_tag, $_merge_info, $_interactive); @@ -258,7 +259,8 @@ my %cmd = ( } ], 'find-rev' => [ \&cmd_find_rev, "Translate between SVN revision numbers and tree-ish", - {} ], + { 'before' => \$_before, + 'after' => \$_after } ], 'rebase' => [ \&cmd_rebase, "Fetch and rebase your working directory", { 'merge|m|M' => \$_merge, 'verbose|v' => \$_verbose, @@ -1191,7 +1193,13 @@ sub cmd_find_rev { "$head history\n"; } my $desired_revision = substr($revision_or_hash, 1); - $result = $gs->rev_map_get($desired_revision, $uuid); + if ($_before) { + $result = $gs->find_rev_before($desired_revision, 1); + } elsif ($_after) { + $result = $gs->find_rev_after($desired_revision, 1); + } else { + $result = $gs->rev_map_get($desired_revision, $uuid); + } } else { my (undef, $rev, undef) = cmt_metadata($revision_or_hash); $result = $rev;
-- 1.8.1.1