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-rwxr-xr-xgit-submodule.sh91
1 files changed, 58 insertions, 33 deletions
diff --git a/git-submodule.sh b/git-submodule.sh
index 4a30087768..6135cfa912 100755
--- a/git-submodule.sh
+++ b/git-submodule.sh
@@ -9,7 +9,7 @@ USAGE="[--quiet] add [-b <branch>] [-f|--force] [--name <name>] [--reference <re
or: $dashless [--quiet] status [--cached] [--recursive] [--] [<path>...]
or: $dashless [--quiet] init [--] [<path>...]
or: $dashless [--quiet] deinit [-f|--force] [--] <path>...
- or: $dashless [--quiet] update [--init] [--remote] [-N|--no-fetch] [-f|--force] [--rebase] [--reference <repository>] [--merge] [--recursive] [--] [<path>...]
+ or: $dashless [--quiet] update [--init] [--remote] [-N|--no-fetch] [-f|--force] [--checkout|--merge|--rebase] [--reference <repository>] [--recursive] [--] [<path>...]
or: $dashless [--quiet] summary [--cached|--files] [--summary-limit <n>] [commit] [--] [<path>...]
or: $dashless [--quiet] foreach [--recursive] <command>
or: $dashless [--quiet] sync [--recursive] [--] [<path>...]"
@@ -241,6 +241,15 @@ module_name()
#
# Clone a submodule
#
+# $1 = submodule path
+# $2 = submodule name
+# $3 = URL to clone
+# $4 = reference repository to reuse (empty for independent)
+# $5 = depth argument for shallow clones (empty for deep)
+# $6 = (remote-tracking) starting point for the local branch (empty for HEAD)
+# $7 = local branch to create (empty for a detached HEAD, unless $6 is
+# also empty, in which case the local branch is left unchanged)
+#
# Prior to calling, cmd_update checks that a possibly existing
# path is not a git repository.
# Likewise, cmd_add checks that path does not exist at all,
@@ -253,6 +262,8 @@ module_clone()
url=$3
reference="$4"
depth="$5"
+ start_point="$6"
+ local_branch="$7"
quiet=
if test -n "$GIT_QUIET"
then
@@ -306,7 +317,16 @@ module_clone()
echo "gitdir: $rel/$a" >"$sm_path/.git"
rel=$(echo $a | sed -e 's|[^/][^/]*|..|g')
- (clear_local_git_env; cd "$sm_path" && GIT_WORK_TREE=. git config core.worktree "$rel/$b")
+ (
+ clear_local_git_env
+ cd "$sm_path" &&
+ GIT_WORK_TREE=. git config core.worktree "$rel/$b" &&
+ # ash fails to wordsplit ${local_branch:+-B "$local_branch"...}
+ case "$local_branch" in
+ '') git checkout -f -q ${start_point:+"$start_point"} ;;
+ ?*) git checkout -f -q -B "$local_branch" ${start_point:+"$start_point"} ;;
+ esac
+ ) || die "$(eval_gettext "Unable to setup cloned submodule '\$sm_path'")"
}
isnumber()
@@ -469,16 +489,15 @@ Use -f if you really want to add it." >&2
echo "$(eval_gettext "Reactivating local git directory for submodule '\$sm_name'.")"
fi
fi
- module_clone "$sm_path" "$sm_name" "$realrepo" "$reference" "$depth" || exit
- (
- clear_local_git_env
- cd "$sm_path" &&
- # ash fails to wordsplit ${branch:+-b "$branch"...}
- case "$branch" in
- '') git checkout -f -q ;;
- ?*) git checkout -f -q -B "$branch" "origin/$branch" ;;
- esac
- ) || die "$(eval_gettext "Unable to checkout submodule '\$sm_path'")"
+ if test -n "$branch"
+ then
+ start_point="origin/$branch"
+ local_branch="$branch"
+ else
+ start_point=""
+ local_branch=""
+ fi
+ module_clone "$sm_path" "$sm_name" "$realrepo" "$reference" "$depth" "$start_point" "$local_branch" || exit
fi
git config submodule."$sm_name".url "$realrepo"
@@ -799,32 +818,35 @@ cmd_update()
fi
name=$(module_name "$sm_path") || exit
url=$(git config submodule."$name".url)
- branch=$(get_submodule_config "$name" branch master)
+ config_branch=$(get_submodule_config "$name" branch)
+ branch="${config_branch:-master}"
+ local_branch="$branch"
if ! test -z "$update"
then
update_module=$update
else
update_module=$(git config submodule."$name".update)
- case "$update_module" in
- '')
- ;; # Unset update mode
- checkout | rebase | merge | none)
- ;; # Known update modes
- !*)
- ;; # Custom update command
- *)
- die "$(eval_gettext "Invalid update mode '$update_module' for submodule '$name'")"
- ;;
- esac
+ if test -z "$update_module"
+ then
+ update_module="checkout"
+ fi
fi
displaypath=$(relative_path "$prefix$sm_path")
- if test "$update_module" = "none"
- then
+ case "$update_module" in
+ none)
echo "Skipping submodule '$displaypath'"
continue
- fi
+ ;;
+ checkout)
+ local_branch=""
+ ;;
+ rebase | merge | !*)
+ ;;
+ *)
+ die "$(eval_gettext "Invalid update mode '$update_module' for submodule '$name'")"
+ esac
if test -z "$url"
then
@@ -838,7 +860,8 @@ Maybe you want to use 'update --init'?")"
if ! test -d "$sm_path"/.git -o -f "$sm_path"/.git
then
- module_clone "$sm_path" "$name" "$url" "$reference" "$depth" || exit
+ start_point="origin/${branch}"
+ module_clone "$sm_path" "$name" "$url" "$reference" "$depth" "$start_point" "$local_branch" || exit
cloned_modules="$cloned_modules;$name"
subsha1=
else
@@ -884,11 +907,16 @@ Maybe you want to use 'update --init'?")"
case ";$cloned_modules;" in
*";$name;"*)
# then there is no local change to integrate
- update_module= ;;
+ update_module='!git reset --hard -q'
esac
must_die_on_failure=
case "$update_module" in
+ checkout)
+ command="git checkout $subforce -q"
+ die_msg="$(eval_gettext "Unable to checkout '\$sha1' in submodule path '\$displaypath'")"
+ say_msg="$(eval_gettext "Submodule path '\$displaypath': checked out '\$sha1'")"
+ ;;
rebase)
command="git rebase"
die_msg="$(eval_gettext "Unable to rebase '\$sha1' in submodule path '\$displaypath'")"
@@ -908,10 +936,7 @@ Maybe you want to use 'update --init'?")"
must_die_on_failure=yes
;;
*)
- command="git checkout $subforce -q"
- die_msg="$(eval_gettext "Unable to checkout '\$sha1' in submodule path '\$displaypath'")"
- say_msg="$(eval_gettext "Submodule path '\$displaypath': checked out '\$sha1'")"
- ;;
+ die "$(eval_gettext "Invalid update mode '$update_module' for submodule '$name'")"
esac
if (clear_local_git_env; cd "$sm_path" && $command "$sha1")