Michael J Gruber <git@xxxxxxxxxxxxxxxxxxxx> writes:
> While replace refs are much more general than grafts, it seems the two
> main uses are:
>
> - grafts (change the recorded parents for a commit)
> - svn cleanup (convert tagging commits into tag objects)
>
> The latter one being quite a special case already.
>
> The script below has helped me move from grafts to replace objects.
> While not being super clean, something like it may be fit for contrib.
>
> I think we ought to help John Doe get along with parents, while we can
> safely leave most more advanced operations to people who know how to
> edit a raw object file. Putting that facility into "git-commit" seems to
> be too encouraging, though - people would use replace when they should
> use amend or rebase-i. I'd prefer a special git-replace mode (be it
> "--graft" or "--graft-commit") which does just what my script does. We
> could add things like "--commit-tag" later, a full blown
> "object-factory" seems like overkill.
>
> Michael
>
> --->%---
>
> #!/bin/sh
>
> die () {
> echo "$@"
> rm -f "$commitfile"
> exit 1
> }
>
> warn () {
> echo "$@"
> }
>
> test $# -gt 0 || die "Usage: $0 <commit> [<parent>]*"
>
> for commit
> do
> git rev-parse --verify -q "$commit" >/dev/null || die "Cannot parse
> $commit."
> test x$(git cat-file -t $commit) == "xcommit" || die "$commit is no
> commit."
s/==/=/ or you have to say #!/bin/bash on the first line, I think.
Appears multiple times throughout this script.
> done
>
> commit="$1"
> shift
>
> commitfile=$(mktemp)
>
> git cat-file commit "$commit" | while read a b
> do
> if test "$a" != "parent"
> then
> echo $a $b
You are losing information on non-header lines by reading without
"-r" in the above, and also multi-line headers (e.g. mergetag),
aren't you?
> fi
> if test "$a" == "tree"
> then
> for parent
> do
> echo "parent $(git rev-parse $parent)"
> done
> fi
> done >$commitfile
> hash=$(git hash-object -t commit -w "$commitfile") || die "Cannot create
> commit object."
> git replace "$commit" $hash
> rm -f $commitfile
--
To unsubscribe from this list: send the line "unsubscribe git" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html