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diff --git a/git-submodule.sh b/git-submodule.sh
index 6ed5a6ced23d99794de56e326bd46438d8c64707..89a388535026258d65ecba3c0dd6de68e2b06cb4 100755 (executable)
--- a/git-submodule.sh
+++ b/git-submodule.sh
}
#
-# Run clone + checkout on missing submodules
+# Map submodule path to submodule name
+#
+# $1 = path
+#
+module_name()
+{
+ name=$(GIT_CONFIG=.gitmodules git-config --get-regexp '^submodule\..*\.path$' "$1" |
+ sed -nre 's/^submodule\.(.+)\.path .+$/\1/p')
+ test -z "$name" &&
+ die "No submodule mapping found in .gitmodules for path '$path'"
+ echo "$name"
+}
+
+#
+# Clone a submodule
+#
+module_clone()
+{
+ path=$1
+ url=$2
+
+ # If there already is a directory at the submodule path,
+ # expect it to be empty (since that is the default checkout
+ # action) and try to remove it.
+ # Note: if $path is a symlink to a directory the test will
+ # succeed but the rmdir will fail. We might want to fix this.
+ if test -d "$path"
+ then
+ rmdir "$path" 2>/dev/null ||
+ die "Directory '$path' exist, but is neither empty nor a git repository"
+ fi
+
+ test -e "$path" &&
+ die "A file already exist at path '$path'"
+
+ git-clone -n "$url" "$path" ||
+ die "Clone of '$url' into submodule path '$path' failed"
+}
+
+#
+# Register submodules in .git/config
#
# $@ = requested paths (default to all)
#
git ls-files --stage -- "$@" | grep -e '^160000 ' |
while read mode sha1 stage path
do
- # Skip submodule paths that already contain a .git directory.
- # This will also trigger if $path is a symlink to a git
- # repository
- test -d "$path"/.git && continue
-
- # If there already is a directory at the submodule path,
- # expect it to be empty (since that is the default checkout
- # action) and try to remove it.
- # Note: if $path is a symlink to a directory the test will
- # succeed but the rmdir will fail. We might want to fix this.
- if test -d "$path"
- then
- rmdir "$path" 2>/dev/null ||
- die "Directory '$path' exist, but is neither empty nor a git repository"
- fi
-
- test -e "$path" &&
- die "A file already exist at path '$path'"
+ # Skip already registered paths
+ name=$(module_name "$path") || exit
+ url=$(git-config submodule."$name".url)
+ test -z "$url" || continue
- url=$(GIT_CONFIG=.gitmodules git-config module."$path".url)
+ url=$(GIT_CONFIG=.gitmodules git-config submodule."$name".url)
test -z "$url" &&
- die "No url found for submodule '$path' in .gitmodules"
-
- # MAYBE FIXME: this would be the place to check GIT_CONFIG
- # for a preferred url for this submodule, possibly like this:
- #
- # modname=$(GIT_CONFIG=.gitmodules git-config module."$path".name)
- # alturl=$(git-config module."$modname".url)
- #
- # This would let the versioned .gitmodules file use the submodule
- # path as key, while the unversioned GIT_CONFIG would use the
- # logical modulename (if present) as key. But this would need
- # another fallback mechanism if the module wasn't named.
-
- git-clone -n "$url" "$path" ||
- die "Clone of submodule '$path' failed"
-
- (unset GIT_DIR && cd "$path" && git-checkout -q "$sha1") ||
- die "Checkout of submodule '$path' failed"
-
- say "Submodule '$path' initialized"
+ die "No url found for submodule path '$path' in .gitmodules"
+
+ git-config submodule."$name".url "$url" ||
+ die "Failed to register url for submodule path '$path'"
+
+ say "Submodule '$name' ($url) registered for path '$path'"
done
}
#
-# Checkout correct revision of each initialized submodule
+# Update each submodule path to correct revision, using clone and checkout as needed
#
# $@ = requested paths (default to all)
#
git ls-files --stage -- "$@" | grep -e '^160000 ' |
while read mode sha1 stage path
do
- if ! test -d "$path"/.git
+ name=$(module_name "$path") || exit
+ url=$(git-config submodule."$name".url)
+ if test -z "$url"
then
# Only mention uninitialized submodules when its
# path have been specified
test "$#" != "0" &&
- say "Submodule '$path' not initialized"
- continue;
+ say "Submodule path '$path' not initialized"
+ continue
+ fi
+
+ if ! test -d "$path"/.git
+ then
+ module_clone "$path" "$url" || exit
+ subsha1=
+ else
+ subsha1=$(unset GIT_DIR && cd "$path" &&
+ git-rev-parse --verify HEAD) ||
+ die "Unable to find current revision in submodule path '$path'"
fi
- subsha1=$(unset GIT_DIR && cd "$path" &&
- git-rev-parse --verify HEAD) ||
- die "Unable to find current revision of submodule '$path'"
if test "$subsha1" != "$sha1"
then
(unset GIT_DIR && cd "$path" && git-fetch &&
git-checkout -q "$sha1") ||
- die "Unable to checkout '$sha1' in submodule '$path'"
+ die "Unable to checkout '$sha1' in submodule path '$path'"
- say "Submodule '$path': checked out '$sha1'"
+ say "Submodule path '$path': checked out '$sha1'"
fi
done
}
#
-# List all registered submodules, prefixed with:
+# List all submodules, prefixed with:
# - submodule not initialized
# + different revision checked out
#
git ls-files --stage -- "$@" | grep -e '^160000 ' |
while read mode sha1 stage path
do
- if ! test -d "$path"/.git
+ name=$(module_name "$path") || exit
+ url=$(git-config submodule."$name".url)
+ if test -z "url" || ! test -d "$path"/.git
then
say "-$sha1 $path"
continue;