X-Git-Url: https://git.madduck.net/code/vcsh.git/blobdiff_plain/6d3e9d21d1bfa0a024bbf5758c6f6e55086deac8..83ae3460b51c674802a6ab4859cbe8450e9e210c:/vcsh?ds=inline

diff --git a/vcsh b/vcsh
index 4da3547..d1d26ed 100755
--- a/vcsh
+++ b/vcsh
@@ -22,6 +22,9 @@
 VERSION='1.20141026'
 SELF=$(basename $0)
 
+# Ensure all files created are accessible only to the current user.
+umask 0077
+
 fatal() {
 	echo "$SELF: fatal: $1" >&2
 	[ -z $2 ] && exit 1
@@ -106,6 +109,9 @@ help() {
    commit               Commit in all repositories
    delete <repo>        Delete an existing repository
    enter <repo>         Enter repository; spawn new instance of \$SHELL
+                        with \$GIT_DIR set.
+   foreach [<-g>]
+     <git command>      Execute a command for every repository
    help                 Display this help text
    init <repo>          Initialize a new repository
    list                 List all repositories
@@ -160,7 +166,12 @@ clone() {
   You should add files to your new repository."
 		exit
 	fi
-	git fetch origin "$VCSH_BRANCH"
+	GIT_VERSION_MAJOR=$(git --version | sed -E -n 's/.* ([0-9]+)\..*/\1/p' )
+	if [ 1 -lt "$GIT_VERSION_MAJOR" ];then
+		git fetch origin "$VCSH_BRANCH"
+	else
+		git fetch origin
+	fi
 	hook pre-merge
 	git ls-tree -r --name-only origin/"$VCSH_BRANCH" | (while read object; do
 		[ -e "$object" ] &&
@@ -170,7 +181,7 @@ clone() {
 	[ x"$VCSH_CONFLICT" = x'1' ]) &&
 		fatal "will stop after fetching and not try to merge!
   Once this situation has been resolved, run 'vcsh $VCSH_REPO_NAME pull' to finish cloning." 17
-	git merge origin/"$VCSH_BRANCH"
+	git -c merge.ff=true merge origin/"$VCSH_BRANCH"
 	hook post-merge
 	hook post-clone
 	retire
@@ -179,11 +190,12 @@ clone() {
 
 commit() {
 	hook pre-commit
+        shift  # remove the "commit" command.
 	for VCSH_REPO_NAME in $(list); do
 		echo "$VCSH_REPO_NAME: "
 		GIT_DIR=$VCSH_REPO_D/$VCSH_REPO_NAME.git; export GIT_DIR
 		use
-		git commit --untracked-files=no --quiet
+		git commit --untracked-files=no --quiet "$@"
 		VCSH_COMMAND_RETURN_CODE=$?
 		echo
 	done
@@ -216,6 +228,27 @@ enter() {
 	hook post-enter
 }
 
+foreach() {
+	hook pre-foreach
+
+	# We default to prefixing `git` to all commands passed to foreach, but
+	# allow running in general context with -g
+	command_prefix=git
+	while getopts "g" flag; do
+		if [ x"$1" = x'-g' ]; then
+			unset command_prefix
+		fi
+		shift 1
+	done
+	for VCSH_REPO_NAME in $(list); do
+		echo "$VCSH_REPO_NAME:"
+		GIT_DIR=$VCSH_REPO_D/$VCSH_REPO_NAME.git; export GIT_DIR
+		use
+		$command_prefix "$@"
+	done
+	hook post-foreach
+}
+
 git_dir_exists() {
 	[ -d "$GIT_DIR" ] || fatal "no repository found for '$VCSH_REPO_NAME'" 12
 }
@@ -233,7 +266,7 @@ init() {
 	[ ! -e "$GIT_DIR" ] || fatal "'$GIT_DIR' exists" 10
 	mkdir -p "$VCSH_BASE" || fatal "could not create '$VCSH_BASE'" 50
 	cd "$VCSH_BASE" || fatal "could not enter '$VCSH_BASE'" 11
-	git init --shared=0600
+	git init --shared=false
 	upgrade
 	hook post-init
 }
@@ -246,7 +279,7 @@ list() {
 
 get_files() {
 	GIT_DIR=$VCSH_REPO_D/$VCSH_REPO_NAME.git; export GIT_DIR
-	git ls-files
+	git ls-files --full-name
 }
 
 list_tracked() {
@@ -265,7 +298,7 @@ list_tracked_helper() {
 }
 
 list_tracked_by() {
-	list_tracked $2
+	list_tracked '' $2
 }
 
 list_untracked() {
@@ -429,12 +462,14 @@ use() {
 }
 
 which() {
-	[ -e "$VCSH_COMMAND_PARAMETER" ] || fatal "'$VCSH_COMMAND_PARAMETER' does not exist" 1
-	for VCSH_REPO_NAME in $(list); do
-		for VCSH_FILE in $(get_files); do
-			echo "$VCSH_FILE" | grep -q "$VCSH_COMMAND_PARAMETER" && echo "$VCSH_REPO_NAME: $VCSH_FILE"
-		done
-	done | sort -u
+	output=$(for VCSH_REPO_NAME in $(list); do
+		get_files | grep -- "$VCSH_COMMAND_PARAMETER" | sed "s/^/$VCSH_REPO_NAME: /"
+	done | sort -u)
+	if [ -z "$output" ]; then
+		fatal "'$VCSH_COMMAND_PARAMETER' does not exist" 1
+	else
+		echo "$output"
+	fi
 }
 
 write_gitignore() {
@@ -446,14 +481,21 @@ write_gitignore() {
 
 	use
 	cd "$VCSH_BASE" || fatal "could not enter '$VCSH_BASE'" 11
+	local GIT_VERSION="$(git --version)"
+	local GIT_VERSION_MAJOR=$(echo $GIT_VERSION | sed -E -n 's/.* ([0-9]+)\..*/\1/p')
+	local GIT_VERSION_MINOR=$(echo $GIT_VERSION | sed -E -n 's/.* ([0-9]+)\.([0-9]+)\..*/\2/p')
 	OLDIFS=$IFS
 	IFS=$(printf '\n\t')
 	gitignores=$(for file in $(git ls-files); do
-		while true; do
-			echo "$file"; new=${file%/*}
-			[ x"$file" = x"$new" ] && break
-			file=$new
-		done;
+		if [ $GIT_VERSION_MAJOR -ge 2 -a $GIT_VERSION_MINOR -ge 7 ]; then
+			echo "$file";
+		else
+			while true; do
+				echo "$file"; new=${file%/*}
+				[ x"$file" = x"$new" ] && break
+				file=$new
+			done;
+		fi
 	done | sort -u)
 
 	# Contrary to GNU mktemp, mktemp on BSD/OSX requires a template for temp files
@@ -556,6 +598,9 @@ elif [ x"$VCSH_COMMAND" = x'delete' ]           ||
 	[ x"$VCSH_COMMAND" = x'rename' ] && { VCSH_REPO_NAME_NEW=$3; export VCSH_REPO_NAME_NEW;
 	                                      GIT_DIR_NEW=$VCSH_REPO_D/$VCSH_REPO_NAME_NEW.git; export GIT_DIR_NEW; }
 	[ x"$VCSH_COMMAND" = x'run' ]    && shift 2
+elif [ x"$VCSH_COMMAND" = x'foreach' ]; then
+	[ -z "$2" ] && fatal "$VCSH_COMMAND: please specify a command" 1
+	shift 1
 elif [ x"$VCSH_COMMAND" = x'commit' ] ||
      [ x"$VCSH_COMMAND" = x'list'   ] ||
      [ x"$VCSH_COMMAND" = x'list-tracked' ] ||