X-Git-Url: https://git.madduck.net/code/vcsh.git/blobdiff_plain/b67f39a96f50708015c0986e741cfe621f255593..4b21d241422c84a3cd54cdd19e59c5110c2908f2:/vcsh

diff --git a/vcsh b/vcsh
index ee35141..3c8d083 100755
--- a/vcsh
+++ b/vcsh
@@ -16,6 +16,8 @@ help() {
    enter                Enter repository; spawn new $SHELL
    init <repo>          Initialize a new repository
    list                 List all repositories
+   rename <repo> \\
+          <newname>     Rename repository
    run <repo> \\
        <command>        Use this repository
 
@@ -48,7 +50,7 @@ info() {
 	echo "$SELF: info: $1"
 }
 
-clone () {
+clone() {
 	init
 	git remote add origin "$GIT_REMOTE"
 	git config branch.master.remote origin
@@ -65,9 +67,8 @@ clone () {
 	git merge origin/master
 }
 
-delete () {
-	old_dir="$PWD"
-	cd "$HOME"
+delete() {
+	cd "$HOME" || fatal "could not enter '$HOME'" 11
 	use
 	info "This operation WILL DETROY DATA!"
 	files=$(git ls-files)
@@ -82,42 +83,48 @@ To continue, type \"Yes, do as I say\""
 	for file in $files; do
 		rm -f $file || info "could not delete '$file', continuing with deletion"
 	done
-	rm -rf "$GIT_DIR" || info "could not delete '$GIT_DIR'"
-	cd "$old_dir"
+	rmdir "$GIT_DIR" || error "could not delete '$GIT_DIR'"
 }
 
-enter () {
+enter() {
 	use
 	$SHELL
 }
 
+git_dir_exists() {
+	[ -d "$GIT_DIR" ] || fatal "no repository found for '$VCSH_REPO_NAME'" 12
+}
+
 init() {
 	[ ! -e "$GIT_DIR" ] || fatal "'$GIT_DIR' exists" 10
 	export GIT_WORK_TREE="$HOME"
-	mkdir -p "$GIT_WORK_TREE"
+	mkdir -p "$GIT_WORK_TREE" || fatal "could not create '$GIT_WORK_TREE'" 50
 	cd "$GIT_WORK_TREE" || fatal "could not enter '$GIT_WORK_TREE'" 11
-	cd "$GIT_WORK_TREE"
 	git init
 	setup
 }
 
-list () {
+list() {
 	for i in "$VCSH_BASE"/*.git; do
 		echo $(basename "$i" .git)
 	done
 }
 
-run () {
+rename() {
+	git_dir_exists
+	[ -d "$GIT_DIR_NEW" ] && fatal "'$GIT_DIR_NEW' exists" 54
+	mv -f "$GIT_DIR" "$GIT_DIR_NEW" || fatal "Could not mv '$GIT_DIR' '$GIT_DIR_NEW'" 52
+
+}
+
+run() {
 	use
 	$VCSH_EXTERNAL_COMMAND
 }
 
-seed_gitignore () {
+seed_gitignore() {
 	use
-	# Switching directory as this has to be executed from $HOME to be of any use.
-	# Going back into old directory at the end in case `vcsh use` is reactivated.
-	old_dir="$PWD"
-	cd "$HOME"
+	cd "$HOME" || fatal "could not enter '$HOME'" 11
 	gitignores=$(for file in $(git ls-files); do
 		while true; do
 			echo $file; new="${file%/*}"
@@ -126,14 +133,15 @@ seed_gitignore () {
 		done;
 	done | sort -u)
 	tempfile=$(mktemp) || fatal "could not create tempfile" 51
-	echo '*' > "$tempfile"
+	echo '*' > "$tempfile" || fatal "could not write to '$tempfile'" 57
 	for gitignore in $gitignores; do
-		echo "$gitignore" | sed 's/^/!/' >> "$tempfile"
-		[ -d "$gitignore" ] && echo "$gitignore/*" | sed 's/^/!/'>> "$tempfile"
+		echo "$gitignore" | sed 's/^/!/' >> "$tempfile" || fatal "could not write to '$tempfile'" 57
+		[ -d "$gitignore" ] && echo "$gitignore/*" | sed 's/^/!/'>> "$tempfile" || fatal "could not write to '$tempfile'" 57
 	done
-	diff -N "$tempfile" "$HOME/.gitignore.d/$VCSH_REPO_NAME" > /dev/null &&
-		rm -f "$tempfile" &&
+	if [ diff -N "$tempfile" "$HOME/.gitignore.d/$VCSH_REPO_NAME" > /dev/null ]; then
+		rm -f "$tempfile" || error "could not delete '$tempfile'"
 		exit
+	fi
 	if [ -e "$HOME/.gitignore.d/$VCSH_REPO_NAME" ]; then
 		info "'$HOME/.gitignore.d/$VCSH_REPO_NAME' differs from new data, moving it to '$HOME/.gitignore.d/$VCSH_REPO_NAME.bak'"
 		mv -f "$HOME/.gitignore.d/$VCSH_REPO_NAME" "$HOME/.gitignore.d/$VCSH_REPO_NAME.bak" ||
@@ -141,7 +149,6 @@ seed_gitignore () {
 	fi
 	mv -f "$tempfile" "$HOME/.gitignore.d/$VCSH_REPO_NAME" ||
 		fatal "could not move '$tempfile' to '$HOME/.gitignore.d/$VCSH_REPO_NAME'" 53
-	cd "$old_dir"
 }
 
 setup() {
@@ -149,14 +156,12 @@ setup() {
 	git config core.worktree     "$GIT_WORK_TREE"
 	git config core.excludesfile ".gitignore.d/$VCSH_REPO_NAME"
 	git config vcsh.vcsh         'true'
-	touch   "$HOME/.gitignore.d/$VCSH_REPO_NAME"
+	touch   "$HOME/.gitignore.d/$VCSH_REPO_NAME" || error "could not touch '$HOME/.gitignore.d/$VCSH_REPO_NAME'"
 	git add "$HOME/.gitignore.d/$VCSH_REPO_NAME"
 }
 
 use() {
-	if [ ! -d "$GIT_DIR" ]; then
-		fatal "no repository found for '$VCSH_REPO_NAME'" 12
-	fi
+	git_dir_exists
 	export GIT_WORK_TREE="$(git config --get core.worktree)"
 	export VCSH_DIRECTORY="$VCSH_REPO_NAME"
 }
@@ -171,16 +176,19 @@ if [ "$1" = 'clone' ]; then
 elif [ "$1" = 'delete' ] ||
      [ "$1" = 'enter' ] ||
      [ "$1" = 'init' ] ||
+     [ "$1" = 'rename' ] ||
      [ "$1" = 'run' ] ||
      [ "$1" = 'seed-gitignore' ] ||
      [ "$1" = 'setup' ]; then
-	[ -z $2 ] && fatal "$1: please specify repository to work on" 1
-	[ "$1" = 'run' -a -z "$3" ] && fatal "$1: please specify a command" 1
+	[ -z $2 ]                      && fatal "$1: please specify repository to work on" 1
+	[ "$1" = 'rename' -a -z "$3" ] && fatal "$1: please specify a target name" 1
+	[ "$1" = 'run' -a -z "$3" ]    && fatal "$1: please specify a command" 1
 	export VCSH_COMMAND="$1"
 	export VCSH_REPO_NAME="$2"
 	export GIT_DIR="$VCSH_BASE/$VCSH_REPO_NAME.git"
-	[ "$1" = 'run' ] && shift 2 && export VCSH_EXTERNAL_COMMAND="$@"
-	[ "$1" = 'seed-gitignore' ] && export VCSH_COMMAND=seed_gitignore
+	[ "$VCSH_COMMAND" = 'rename' ]         && export GIT_DIR_NEW="$VCSH_BASE/$3.git"
+	[ "$VCSH_COMMAND" = 'run' ] && shift 2 && export VCSH_EXTERNAL_COMMAND="$@"
+	[ "$VCSH_COMMAND" = 'seed-gitignore' ] && export VCSH_COMMAND='seed_gitignore'
 elif [ "$1" = 'list' ]; then
 	export VCSH_COMMAND="$1"
 elif [ -n "$1" ]; then