For recalling where a subtree came from; git-subtree operations 'add'
and 'pull', when called with the <repository> parameter add this to the
commit message:
git-subtree-repo: <repo_url>
Other operations that don't have the <repository> information, like
'merge' and 'add' without <repository>, are unchanged. Users with such a
workflow will continue to be on their own with the --message parameter,
if they'd like to record where the subtree came from.
Signed-off-by: Mathias Nyman <mathias.nyman@xxxxxx>
Based-on-patch-by: Nicola Paolucci <npaolucci@xxxxxxxxxxxxx>
Thanks-to: Aleksi Aalto <aga@xxxxxx>
---
contrib/subtree/git-subtree.sh | 54 ++++++++++++++++++++++++++++++++----------
1 file changed, 42 insertions(+), 12 deletions(-)
diff --git a/contrib/subtree/git-subtree.sh b/contrib/subtree/git-subtree.sh
index 7a39b30..dd1f70e 100755
--- a/contrib/subtree/git-subtree.sh
+++ b/contrib/subtree/git-subtree.sh
@@ -335,6 +335,7 @@ add_msg()
dir="$1"
latest_old="$2"
latest_new="$3"
+ repo="$4" # optional
if [ -n "$message" ]; then
commit_message="$message"
else
@@ -347,6 +348,11 @@ add_msg()
git-subtree-mainline: $latest_old
git-subtree-split: $latest_new
EOF
+
+ if [ -n "$repo" ]; then
+ repo_url=$(get_repository_url "$repo")
+ echo "git-subtree-repo: $repo_url"
+ fi
}
add_squashed_msg()
@@ -382,6 +388,7 @@ squash_msg()
dir="$1"
oldsub="$2"
newsub="$3"
+ repo="$4" # optional
newsub_short=$(git rev-parse --short "$newsub")
if [ -n "$oldsub" ]; then
@@ -397,6 +404,10 @@ squash_msg()
echo
echo "git-subtree-dir: $dir"
echo "git-subtree-split: $newsub"
+ if [ -n "$repo" ]; then
+ repo_url=$(get_repository_url "$repo")
+ echo "git-subtree-repo: $repo_url"
+ fi
}
toptree_for_commit()
@@ -440,12 +451,13 @@ new_squash_commit()
old="$1"
oldsub="$2"
newsub="$3"
+ repo="$4" # optional
tree=$(toptree_for_commit $newsub) || exit $?
if [ -n "$old" ]; then
- squash_msg "$dir" "$oldsub" "$newsub" |
+ squash_msg "$dir" "$oldsub" "$newsub" "$repo" |
git commit-tree "$tree" -p "$old" || exit $?
else
- squash_msg "$dir" "" "$newsub" |
+ squash_msg "$dir" "" "$newsub" "$repo" |
git commit-tree "$tree" || exit $?
fi
}
@@ -517,6 +529,16 @@ ensure_valid_ref_format()
die "'$1' does not look like a ref"
}
+get_repository_url()
+{
+ repo=$1
+ repo_url=$(git config --get remote.$repo.url)
+ if [ -z "$repo_url" ]; then
+ repo_url=$repo
+ fi
+ echo $repo_url
+}
+
cmd_add()
{
if [ -e "$dir" ]; then
@@ -548,17 +570,18 @@ cmd_add()
cmd_add_repository()
{
echo "git fetch" "$@"
- repository=$1
+ repo=$1
refspec=$2
git fetch "$@" || exit $?
revs=FETCH_HEAD
- set -- $revs
+ set -- $revs $repo
cmd_add_commit "$@"
}
cmd_add_commit()
{
- revs=$(git rev-parse $default --revs-only "$@") || exit $?
+ revs=$(git rev-parse $default --revs-only "$1") || exit $?
+ repo="$2" # optional
set -- $revs
rev="$1"
@@ -575,12 +598,12 @@ cmd_add_commit()
fi
if [ -n "$squash" ]; then
- rev=$(new_squash_commit "" "" "$rev") || exit $?
+ rev=$(new_squash_commit "" "" "$rev" "$repo") || exit $?
commit=$(add_squashed_msg "$rev" "$dir" |
git commit-tree $tree $headp -p "$rev") || exit $?
else
revp=$(peel_committish "$rev") &&
- commit=$(add_msg "$dir" "$headrev" "$rev" |
+ commit=$(add_msg "$dir" "$headrev" "$rev" "$repo" |
git commit-tree $tree $headp -p "$revp") || exit $?
fi
git reset "$commit" || exit $?
@@ -610,6 +633,7 @@ cmd_split()
unrevs="$(find_existing_splits "$dir" "$revs")"
fi
+ rev="$1"
# We can't restrict rev-list to only $dir here, because some of our
# parents have the $dir contents the root, and those won't match.
# (and rev-list --follow doesn't seem to solve this)
@@ -683,14 +707,19 @@ cmd_split()
cmd_merge()
{
- revs=$(git rev-parse $default --revs-only "$@") || exit $?
+ revs=$(git rev-parse $default --revs-only "$1") || exit $?
ensure_clean
-
set -- $revs
if [ $# -ne 1 ]; then
die "You must provide exactly one revision. Got: '$revs'"
fi
+ do_merge "$@"
+}
+
+do_merge()
+{
rev="$1"
+ repo="$2" # optional
if [ -n "$squash" ]; then
first_split="$(find_latest_squash "$dir")"
@@ -704,7 +733,7 @@ cmd_merge()
say "Subtree is already at commit $rev."
exit 0
fi
- new=$(new_squash_commit "$old" "$sub" "$rev") || exit $?
+ new=$(new_squash_commit "$old" "$sub" "$rev" "$repo") || exit $?
debug "New squash commit: $new"
rev="$new"
fi
@@ -730,12 +759,13 @@ cmd_pull()
if [ $# -ne 2 ]; then
die "You must provide <repository> <ref>"
fi
+ repo=$1
ensure_clean
ensure_valid_ref_format "$2"
git fetch "$@" || exit $?
revs=FETCH_HEAD
- set -- $revs
- cmd_merge "$@"
+ set -- $revs $repo
+ do_merge "$@"
}
cmd_push()
--
2.7.1
--
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