X-Git-Url: https://git.madduck.net/code/vcsh.git/blobdiff_plain/1536eb46c4e6535b1d12b7152763ad883a8dba0e..663af6efe8d81d4386127b8fbd05320f44988658:/vcsh

diff --git a/vcsh b/vcsh
index 0edfe2f..cb9f216 100755
--- a/vcsh
+++ b/vcsh
@@ -5,6 +5,13 @@
 [ -z "$VCSH_BASE" ]       && VCSH_BASE="$XDG_CONFIG_HOME/vcsh/repo.d"
 
 SELF=$(basename $0)
+if [ "$SELF" = 'bash' ] ||
+   [ "$SELF" = 'dash' ] ||
+   [ "$SELF" = 'sh' ] ||
+   [ "$SELF" = 'zsh' ]; then
+	SELF='vcsh'
+	VCSH_SOURCED=1
+fi
 
 
 help() {
@@ -14,19 +21,19 @@ help() {
          [<repo>]       Clone from an existing repository
    help                 Display this help text
    delete               Delete an existing repository
+   enter                Enter repository; spawn new $SHELL
+   exit                 Exit repository; unset ENV
    init <repo>          Initialize a new repository
-   list                 List all repos
+   list                 List all repositories
    run <repo> \\
        <command>        Use this repository
 
    seed-gitignore \\
    <repo>               Seed .gitignore.d/<repo> from git ls-files
+   use <repo>           Use repository; set ENV
 
    <repo> <git command> Special command that allows you to run git commands
                         directly without having to type so much ;)" >&2
-#   use <repo>     Use this repository
-#
-#   exit              Exit vcsh mode" >&2
 }
 
 debug() {
@@ -37,18 +44,6 @@ verbose() {
 	if [ -n "$VCSH_DEBUG" ] || [ -n "$VCSH_VERBOSE" ]; then echo "$SELF: verbose: $@"; fi
 }
 
-use() {
-	verbose "use() begin"
-	if [ ! -d "$GIT_DIR" ]; then
-		echo E: no repository found for "$VCSH_REPO_NAME" >&2
-		return 1
-	fi
-	export GIT_DIR
-	export GIT_WORK_TREE="$(git config --get core.worktree)"
-	export VCSH_DIRECTORY="$VCSH_REPO_NAME"
-	verbose "use() end"
-}
-
 init() {
 	verbose "init() begin"
 	[ -e "$GIT_DIR" ] &&
@@ -58,13 +53,13 @@ init() {
 	mkdir -p "$GIT_WORK_TREE"
 	cd "$GIT_WORK_TREE" ||
 		(echo "$SELF: fatal: could not enter $GIT_WORK_TREE" &&
-		 exit 20) || exit 20
+		 return 1) || return $?
 	cd "$GIT_WORK_TREE"
 	git init
 	git config core.worktree     "$GIT_WORK_TREE"
-	git config core.excludesfile ".gitignore.d/$REPO_NAME"
-	touch   "$HOME/.gitignore.d/$REPO_NAME"
-	git add "$HOME/.gitignore.d/$REPO_NAME"
+	git config core.excludesfile ".gitignore.d/$VCSH_REPO_NAME"
+	touch   "$HOME/.gitignore.d/$VCSH_REPO_NAME"
+	git add "$HOME/.gitignore.d/$VCSH_REPO_NAME"
 	verbose "init() end"
 }
 
@@ -74,8 +69,21 @@ leave() {
 	unset VCSH_DIRECTORY
 }
 
+use() {
+	verbose "use() begin"
+	if [ ! -d "$GIT_DIR" ]; then
+		echo E: no repository found for "$VCSH_REPO_NAME" >&2
+		return 1
+	fi
+	export GIT_DIR
+	export GIT_WORK_TREE="$(git config --get core.worktree)"
+	export VCSH_DIRECTORY="$VCSH_REPO_NAME"
+	verbose "use() end"
+}
+
 
 if [ "$1" = 'clone' ]; then
+	export VCSH_COMMAND="$1"
 	GIT_REMOTE="$2"
 	export GIT_REMOTE
 	VCSH_REPO_NAME="$3"
@@ -83,20 +91,22 @@ if [ "$1" = 'clone' ]; then
 	export VCSH_REPO_NAME
 	export GIT_DIR="$VCSH_BASE/$VCSH_REPO_NAME.git"
 elif [ "$1" = 'delete' ] ||
+     [ "$1" = 'enter' ] ||
      [ "$1" = 'init' ] ||
-     [ "$1" = 'run' ]; then
+     [ "$1" = 'run' ] ||
+     [ "$1" = 'seed-gitignore' ] ||
+     [ "$1" = 'use' ]; then
 	[ -z $2 ] && echo "$SELF $1: error: please specify repository to work on" && return 1
-	[ -z $3 ] && echo "$SELF $1 $2: error: please specify a command" && return 1
 	export VCSH_COMMAND="$1"
 	export VCSH_REPO_NAME="$2"
 	export GIT_DIR="$VCSH_BASE/$VCSH_REPO_NAME.git"
 	shift 2
 	export VCSH_EXTERNAL_COMMAND="$*"
-elif [ "$1" = 'seed-gitignore' ]; then
-	export VCSH_COMMAND="$1"
-	export VCSH_REPO_NAME="$2"
-	export GIT_DIR="$VCSH_BASE/$VCSH_REPO_NAME.git"
-elif [ "$1" = 'help' ] ||
+	if [ "$VCSH_COMMAND" = 'run' ]; then
+		[ -z "$VCSH_EXTERNAL_COMMAND" ] && echo "$SELF $1 $2: error: please specify a command" && return 1
+	fi
+elif [ "$1" = 'exit' ] ||
+     [ "$1" = 'help' ] ||
      [ "$1" = 'list' ]; then
 	export VCSH_COMMAND="$1"
 else
@@ -115,10 +125,10 @@ do
 	if [ ! -d "$check_directory" ]; then
 		if [ -e "$check_directory" ]; then
 			echo "$SELF: error: $check_directory exists but is not a directory" >&2
-			exit 2
+			return 2
 		else
 			echo "$SELF: info: attempting to create $check_directory"
-			mkdir -p "$check_directory" || (echo "$SELF: error: could not create $check_directory" >&2; exit 2)
+			mkdir -p "$check_directory" || (echo "$SELF: error: could not create $check_directory" >&2; return 2) || return $?
 		fi
 	fi
 done
@@ -139,19 +149,20 @@ if [ "$VCSH_COMMAND" = 'clone' ]; then
 	[ "$VCSH_CONFLICT" = '1' ] &&
 		echo "$SELF: fatal: will stop after fetching and not try to merge!\n" &&
 		echo "  Once this situation has been resolved, run 'vcsh run <foo> git pull' to finish cloning.\n" &&
-		exit 3
+		return 3
 	git merge origin/master
-#	use || return 1
+#	use || return $?
 	verbose "clone end"
 
-elif [ "$VCSH_COMMAND" = 'help' ] || [ "$#" -eq 0 ]; then
+#elif [ "$VCSH_COMMAND" = 'help' ] || [ "$#" -eq 0 ]; then
+elif [ "$VCSH_COMMAND" = 'help' ]; then
 	help
 
 elif [ "$VCSH_COMMAND" = 'delete' ]; then
 	verbose "delete begin"
 	old_dir="$PWD"
 	cd "$HOME"
-	use || return 1
+	use || return $?
 	echo "$SELF: info: This operation WILL DETROY DATA!"
 	files=$(git ls-files)
 	echo "These files will be deleted:
@@ -161,7 +172,7 @@ $files
 AGAIN, THIS WILL DELETE YOUR DATA!
 To continue, type \"Yes, do as I say\""
 	read answer
-	[ "x$answer" = "xYes, do as I say" ] || exit
+	[ "x$answer" = "xYes, do as I say" ] || return 1
 	for file in $files; do
 		rm -f $file || echo "$SELF: info: could not delete '$file', continuing with deletion"
 	done
@@ -169,21 +180,29 @@ To continue, type \"Yes, do as I say\""
 	cd "$old_dir"
 	verbose "delete end"
 
-#elif [ "$VCSH_COMMAND" = 'exit' ]; then
-#	verbose "exit begin"
+elif [ "$VCSH_COMMAND" = 'enter' ]; then
+	verbose "enter begin"
+	use || return $?
+	$SHELL
+	leave
+	verbose "enter end"
+
+elif [ "$VCSH_COMMAND" = 'exit' ]; then
+	verbose "exit begin"
 #	if [ -n "$ZSH_VERSION" ] && [ "$VCSH_NO_IGNORE_EOF" = '1' ]; then
 #		unset VCSH_NO_IGNORE_EOF
 #		setopt NO_IGNORE_EOF
 #	fi
-#	leave
+	[ -z "$VCSH_SOURCED" ] && echo "$SELF $VCSH_COMMAND: You need to source vcsh if you want to run in this mode" && return 10
+	leave
 #	[ -n "$ZSH_VERSION" ] && [ "$USER" = richih ] && buildPS1
-#	verbose "exit end"
-#	exit 0
+	verbose "exit end"
+	return 0
 
 elif [ "$VCSH_COMMAND" = 'init' ]; then
 	verbose "init begin"
 	init
-#	use || return 1
+#	use || return $?
 	verbose "init end"
 
 elif [ "$VCSH_COMMAND" = 'list' ]; then
@@ -195,14 +214,14 @@ elif [ "$VCSH_COMMAND" = 'list' ]; then
 
 elif [ "$VCSH_COMMAND" = 'run' ]; then
 	verbose "run begin"
-	use || return 1
+	use || return $?
 	$VCSH_EXTERNAL_COMMAND
 	leave
 	verbose "run end"
 
 elif [ "$VCSH_COMMAND" = 'seed-gitignore' ]; then
 	verbose "seed-gitignore begin"
-	use || return 1
+	use || return $?
 	# 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"
@@ -214,28 +233,30 @@ elif [ "$VCSH_COMMAND" = 'seed-gitignore' ]; then
 			[ "$file" = "$new" ] && break
 			file="$new"
 		done;
-	done | sort -u | sed 's/^/!/')
+	done | sort -u)
 	tempfile=$(mktemp) ||
-		(echo "$SELF: fatal: could not create tempfile" && exit 1) 
+		(echo "$SELF: fatal: could not create tempfile" && return 1) || return $?
 	echo '*' > "$tempfile"
 	for gitignore in $gitignores; do
-		echo "$gitignore" >> "$tempfile"
+		echo "$gitignore" | sed 's/^/!/' >> "$tempfile"
+		[ -d "$gitignore" ] && echo "$gitignore/*" | sed 's/^/!/'>> "$tempfile"
 	done
-	diff -N "$tempfile" "$HOME/.gitignore.d/$2" > /dev/null &&
+	diff -N "$tempfile" "$HOME/.gitignore.d/$VCSH_REPO_NAME" > /dev/null &&
 		rm -f "$tempfile" &&
 		return
-	if [ -e "$HOME/.gitignore.d/$2" ]; then
-		echo "$SELF: info: $HOME/.gitignore.d/$2 differs from new data, moving it to $HOME/.gitignore.d/$2.bak"
-		mv -f "$HOME/.gitignore.d/$2" "$HOME/.gitignore.d/$2.bak" ||
-			(echo "$SELF: fatal: could not move $HOME/.gitignore.d/$2 to $HOME/.gitignore.d/$2.bak" && exit 1)
+	if [ -e "$HOME/.gitignore.d/$VCSH_REPO_NAME" ]; then
+		echo "$SELF: 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" ||
+			(echo "$SELF: fatal: could not move $HOME/.gitignore.d/$VCSH_REPO_NAME to $HOME/.gitignore.d/$VCSH_REPO_NAME.bak" &&
+			 return 1) || return $?
 	fi
-	mv -f "$tempfile" "$HOME/.gitignore.d/$2" ||
-		(echo "$SELF: fatal: could not move $tempfile to $HOME/.gitignore.d/$2" && exit 1)
+	mv -f "$tempfile" "$HOME/.gitignore.d/$VCSH_REPO_NAME" ||
+		(echo "$SELF: fatal: could not move $tempfile to $HOME/.gitignore.d/$VCSH_REPO_NAME" && return 1) || return $?
 	cd "$old_dir"
 	verbose "seed-gitignore end"
 
-#elif [ "$VCSH_COMMAND" = 'use' ]; then
-#	verbose "use begin"
+elif [ "$VCSH_COMMAND" = 'use' ]; then
+	verbose "use begin"
 #	if [ -n "$ZSH_VERSION" ]; then
 #		if [ -o NO_IGNORE_EOF ]; then
 #			export VCSH_NO_IGNORE_EOF=1
@@ -248,14 +269,15 @@ elif [ "$VCSH_COMMAND" = 'seed-gitignore' ]; then
 #		zle -N vcsh_exit
 #		bindkey '^d' 'vcsh_exit'
 #	fi
-#	use || return 1
+	[ -z "$VCSH_SOURCED" ] && echo "$SELF $VCSH_COMMAND: You need to source vcsh if you want to run in this mode" && return 10
+	use || return $?
 #	[ -n "$ZSH_VERSION" ] && [ "$USER" = richih ] && buildPS1
-#	verbose "use end"
+	verbose "use end"
 
 else
 	verbose "defaulting to calling help()"
 	help
 	echo "$SELF: fatal: You should never reach this code. File a bug, please."
-	exit 99
+	return 99
 
 fi