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-rwxr-xr-xcontrib/subtree/git-subtree.sh64
1 files changed, 52 insertions, 12 deletions
diff --git a/contrib/subtree/git-subtree.sh b/contrib/subtree/git-subtree.sh
index e0c5d3b..5dab3f5 100755
--- a/contrib/subtree/git-subtree.sh
+++ b/contrib/subtree/git-subtree.sh
@@ -373,7 +373,8 @@ try_remove_previous () {
# Usage: process_subtree_split_trailer SPLIT_HASH MAIN_HASH [REPOSITORY]
process_subtree_split_trailer () {
- assert test $# = 2 -o $# = 3
+ assert test $# -ge 2
+ assert test $# -le 3
b="$1"
sq="$2"
repository=""
@@ -402,7 +403,8 @@ process_subtree_split_trailer () {
# Usage: find_latest_squash DIR [REPOSITORY]
find_latest_squash () {
- assert test $# = 1 -o $# = 2
+ assert test $# -ge 1
+ assert test $# -le 2
dir="$1"
repository=""
if test "$#" = 2
@@ -455,7 +457,8 @@ find_latest_squash () {
# Usage: find_existing_splits DIR REV [REPOSITORY]
find_existing_splits () {
- assert test $# = 2 -o $# = 3
+ assert test $# -ge 2
+ assert test $# -le 3
debug "Looking for prior splits..."
local indent=$(($indent + 1))
@@ -489,13 +492,13 @@ find_existing_splits () {
;;
END)
debug "Main is: '$main'"
- if test -z "$main" -a -n "$sub"
+ if test -z "$main" && test -n "$sub"
then
# squash commits refer to a subtree
debug " Squash: $sq from $sub"
cache_set "$sq" "$sub"
fi
- if test -n "$main" -a -n "$sub"
+ if test -n "$main" && test -n "$sub"
then
debug " Prior: $main -> $sub"
cache_set $main $sub
@@ -638,10 +641,16 @@ subtree_for_commit () {
while read mode type tree name
do
assert test "$name" = "$dir"
- assert test "$type" = "tree" -o "$type" = "commit"
- test "$type" = "commit" && continue # ignore submodules
- echo $tree
- break
+
+ case "$type" in
+ commit)
+ continue;; # ignore submodules
+ tree)
+ echo $tree
+ break;;
+ *)
+ die "fatal: tree entry is of type ${type}, expected tree or commit";;
+ esac
done || exit $?
}
@@ -778,6 +787,22 @@ ensure_valid_ref_format () {
die "fatal: '$1' does not look like a ref"
}
+# Usage: check if a commit from another subtree should be
+# ignored from processing for splits
+should_ignore_subtree_split_commit () {
+ assert test $# = 1
+ local rev="$1"
+ if test -n "$(git log -1 --grep="git-subtree-dir:" $rev)"
+ then
+ if test -z "$(git log -1 --grep="git-subtree-mainline:" $rev)" &&
+ test -z "$(git log -1 --grep="git-subtree-dir: $arg_prefix$" $rev)"
+ then
+ return 0
+ fi
+ fi
+ return 1
+}
+
# Usage: process_split_commit REV PARENTS
process_split_commit () {
assert test $# = 2
@@ -916,7 +941,7 @@ cmd_split () {
if test $# -eq 0
then
rev=$(git rev-parse HEAD)
- elif test $# -eq 1 -o $# -eq 2
+ elif test $# -eq 1 || test $# -eq 2
then
rev=$(git rev-parse -q --verify "$1^{commit}") ||
die "fatal: '$1' does not refer to a commit"
@@ -963,7 +988,19 @@ cmd_split () {
eval "$grl" |
while read rev parents
do
- process_split_commit "$rev" "$parents"
+ if should_ignore_subtree_split_commit "$rev"
+ then
+ continue
+ fi
+ parsedparents=''
+ for parent in $parents
+ do
+ if ! should_ignore_subtree_split_commit "$parent"
+ then
+ parsedparents="$parsedparents$parent "
+ fi
+ done
+ process_split_commit "$rev" "$parsedparents"
done || exit $?
latest_new=$(cache_get latest_new) || exit $?
@@ -1006,8 +1043,11 @@ cmd_split () {
# Usage: cmd_merge REV [REPOSITORY]
cmd_merge () {
- test $# -eq 1 -o $# -eq 2 ||
+ if test $# -lt 1 || test $# -gt 2
+ then
die "fatal: you must provide exactly one revision, and optionally a repository. Got: '$*'"
+ fi
+
rev=$(git rev-parse -q --verify "$1^{commit}") ||
die "fatal: '$1' does not refer to a commit"
repository=""