X-Git-Url: https://git.madduck.net/code/vcsh.git/blobdiff_plain/f3c7d74d246eed78a690375dcaa4b3a99b60fd99..2e7920b2e19d99f0b21a105b7d978957a52c67fe:/vcsh?ds=inline

diff --git a/vcsh b/vcsh
index 4732e46..7583aca 100755
--- a/vcsh
+++ b/vcsh
@@ -1,40 +1,119 @@
 #!/bin/sh
 
 # This program is licensed under the GNU GPL version 2 or later.
-# (c) Richard "RichiH" Hartmann <richih.mailinglist@gmail.com>, 2011
+# (c) Richard "RichiH" Hartmann <richih@debian.org>, 2011-2013
 # For details, see LICENSE. To submit patches, you have to agree to
 # license your code under the GNU GPL version 2 or later.
 
+# While the following is not legally binding, the author would like to
+# explain the choice of GPLv2+ over GPLv3+.
+# The author prefers GPLv3+ over GPLv2+ but feels it's better to maintain
+# full compatibility's with Git. In case Git ever changes its licensing terms,
+# which is admittedly extremely unlikely to the point of being impossible,
+# this software will most likely follow suit.
 
+# This should always be the first line of code to facilitate debugging
+[ -n "$VCSH_DEBUG" ] && set -vx
+
+SELF=$(basename $0)
+VERSION='1.20131214.git-HEAD'
+
+fatal() {
+	echo "$SELF: fatal: $1" >&2
+	exit $2
+}
+
+# We need to run getops as soon as possible so we catch -d and other
+# options that will modify our behaviour.
+# Commands are handled at the end of this script.
+while getopts "c:dv" flag; do
+	if [ "$1" = '-d' ] || [ "$1" = '--debug' ]; then
+		set -vx
+		VCSH_DEBUG=1
+		echo "debug mode on"
+		echo "$SELF $VERSION"
+	elif [ "$1" = '-v' ]; then
+		VCSH_VERBOSE=1
+		echo "verbose mode on"
+		echo "$SELF $VERSION"
+	elif [ "$1" = '-c' ]; then
+		VCSH_OPTION_CONFIG=$OPTARG
+	fi
+	shift 1
+done
+
+source_all() {
+	# Source file even if it's in $PWD and does not have any slashes in it
+	case "$1" in
+		*/*) . "$1";;
+		*)   . "$PWD/$1";;
+	esac;
+}
+
+
+# Read configuration and set defaults if anything's not set
 [ -n "$VCSH_DEBUG" ]                  && set -vx
-[ -z "$XDG_CONFIG_HOME" ]             && XDG_CONFIG_HOME="$HOME/.config"
+: ${XDG_CONFIG_HOME:=$HOME/.config}
+
+# Read configuration files if there are any
+[ -r "/etc/vcsh/config" ]             && . "/etc/vcsh/config"
 [ -r "$XDG_CONFIG_HOME/vcsh/config" ] && . "$XDG_CONFIG_HOME/vcsh/config"
+if [ -n "$VCSH_OPTION_CONFIG" ]; then
+	# Source $VCSH_OPTION_CONFIG if it can be read and is in $PWD of $PATH
+	if [ -r "$VCSH_OPTION_CONFIG" ]; then
+		source_all "$VCSH_OPTION_CONFIG"
+	else
+		fatal "Can not read configuration file '$VCSH_OPTION_CONFIG'" 1
+	fi
+fi
 [ -n "$VCSH_DEBUG" ]                  && set -vx
-[ -z "$VCSH_REPO_D" ]                 && VCSH_REPO_D="$XDG_CONFIG_HOME/vcsh/repo.d"
-[ -z "$VCSH_HOOK_D" ]                 && VCSH_HOOK_D="$XDG_CONFIG_HOME/vcsh/hooks-enabled"
-[ -z "$VCSH_BASE" ]                   && VCSH_BASE="$HOME"
-[ -z "$VCSH_GITIGNORE" ]              && VCSH_GITIGNORE='exact'
 
-SELF=$(basename $0)
+# Read defaults
+: ${VCSH_REPO_D:=$XDG_CONFIG_HOME/vcsh/repo.d}
+: ${VCSH_HOOK_D:=$XDH_CONFIG_HOME/vcsh/hooks-enabled}
+: ${VCSH_BASE:=$HOME}
+: ${VCSH_GITIGNORE:=exact}
+: ${VCSH_WORKTREE:=absolute}
+
+if [ ! "x$VCSH_GITIGNORE" = 'xexact' ] && [ ! "x$VCSH_GITIGNORE" = 'xnone' ] && [ ! "x$VCSH_GITIGNORE" = 'xrecursive' ]; then
+	fatal "'\$VCSH_GITIGNORE' must equal 'exact', 'none', or 'recursive'" 1
+fi
+
+if [ ! "x$VCSH_WORKTREE" = 'xabsolute' ] && [ ! "x$VCSH_WORKTREE" = 'xrelative' ]; then
+	fatal "'\$VCSH_WORKTREE' must equal 'absolute', or 'relative'" 1
+fi
+
 
 help() {
-	echo "usage: $SELF <args>
+	echo "usage: $SELF <options> <command>
+
+   options:
+   -c <file>            Source file
+   -d                   Enable debug mode
+   -v                   Enable verbose mode
 
+   commands:
    clone <remote> \\
          [<repo>]       Clone from an existing repository
+   commit               Commit in all repositories
+   delete <repo>        Delete an existing repository
+   enter <repo>         Enter repository; spawn new instance of \$SHELL
    help                 Display this help text
-   delete               Delete an existing repository
-   enter                Enter repository; spawn new instance of \$SHELL
    init <repo>          Initialize a new repository
    list                 List all repositories
    list-tracked         List all files tracked by vcsh
    list-tracked-by \\
         <repo>          List files tracked by a repository
+   pull                 Pull from all vcsh remotes
+   push                 Push to vcsh remotes
    rename <repo> \\
           <newname>     Rename repository
    run <repo> \\
        <command>        Use this repository
-   setup                Set up repository with recommended settings
+   status [<repo>]      Show statuses of all/one vcsh repositories
+   upgrade <repo>       Upgrade repository to currently recommended settings
+   version              Print version information
+   which <substring>    Find substring in name of any tracked file
    write-gitignore \\
    <repo>               Write .gitignore.d/<repo> via git ls-files
 
@@ -50,11 +129,6 @@ verbose() {
 	if [ -n "$VCSH_DEBUG" ] || [ -n "$VCSH_VERBOSE" ]; then echo "$SELF: verbose: $@"; fi
 }
 
-fatal() {
-	echo "$SELF: fatal: $1" >&2
-	exit $2
-}
-
 error() {
 	echo "$SELF: error: $1" >&2
 }
@@ -64,6 +138,7 @@ info() {
 }
 
 clone() {
+	hook pre-clone
 	init
 	git remote add origin "$GIT_REMOTE"
 	git config branch.master.remote origin
@@ -76,31 +151,46 @@ clone() {
 	for object in $(git ls-tree -r origin/master | awk '{print $4}'); do
 		[ -e "$object" ] &&
 			error "'$object' exists." &&
-			VCSH_CONFLICT=1;
+			VCSH_CONFLICT=1
 	done
 	[ "$VCSH_CONFLICT" = '1' ] &&
 		fatal "will stop after fetching and not try to merge!
-  Once this situation has been resolved, run 'vcsh run $VCSH_REPO_NAME git pull' to finish cloning.\n" 17
+  Once this situation has been resolved, run 'vcsh run $VCSH_REPO_NAME git pull' to finish cloning." 17
 	git merge origin/master
+	hook post-clone
+	retire
+	hook post-clone-retired
+}
+
+commit() {
+	hook pre-commit
+	for VCSH_REPO_NAME in $(list); do
+		echo "$VCSH_REPO_NAME: "
+		export GIT_DIR="$VCSH_REPO_D/$VCSH_REPO_NAME.git"
+		use
+		git commit --untracked-files=no --quiet
+		echo
+	done
+	hook post-commit
 }
 
 delete() {
 	cd "$VCSH_BASE" || fatal "could not enter '$VCSH_BASE'" 11
 	use
-	info "This operation WILL DETROY DATA!"
+	info "This operation WILL DESTROY DATA!"
 	files=$(git ls-files)
 	echo "These files will be deleted:
 
 $files
 
 AGAIN, THIS WILL DELETE YOUR DATA!
-To continue, type \"Yes, do as I say\""
+To continue, type 'Yes, do as I say'"
 	read answer
-	[ "x$answer" = "xYes, do as I say" ] || exit 16
+	[ "x$answer" = 'xYes, do as I say' ] || exit 16
 	for file in $files; do
 		rm -f $file || info "could not delete '$file', continuing with deletion"
 	done
-	rmdir "$GIT_DIR" || error "could not delete '$GIT_DIR'"
+	rm -rf "$GIT_DIR" || error "could not delete '$GIT_DIR'"
 }
 
 enter() {
@@ -117,22 +207,24 @@ git_dir_exists() {
 hook() {
 	for hook in $VCSH_HOOK_D/$1* $VCSH_HOOK_D/$VCSH_REPO_NAME.$1*; do
 		[ -x "$hook" ] || continue
+		verbose "executing '$hook'"
 		"$hook"
 	done
 }
 
 init() {
+	hook pre-init
 	[ ! -e "$GIT_DIR" ] || fatal "'$GIT_DIR' exists" 10
-	export GIT_WORK_TREE="$VCSH_BASE"
-	mkdir -p "$GIT_WORK_TREE" || fatal "could not create '$GIT_WORK_TREE'" 50
-	cd "$GIT_WORK_TREE" || fatal "could not enter '$GIT_WORK_TREE'" 11
+	mkdir -p "$VCSH_BASE" || fatal "could not create '$VCSH_BASE'" 50
+	cd "$VCSH_BASE" || fatal "could not enter '$VCSH_BASE'" 11
 	git init
-	setup
+	upgrade
+	hook post-init
 }
 
 list() {
-	for i in "$VCSH_REPO_D"/*.git; do
-		echo $(basename "$i" .git)
+	for repo in "$VCSH_REPO_D"/*.git; do
+		[ -d "$repo" ] && [ -r "$repo" ] && echo $(basename "$repo" .git)
 	done
 }
 
@@ -152,37 +244,110 @@ list_tracked_by() {
 	git ls-files | sort -u
 }
 
+pull() {
+	hook pre-pull
+	for VCSH_REPO_NAME in $(list); do
+		printf "$VCSH_REPO_NAME: "
+		export GIT_DIR="$VCSH_REPO_D/$VCSH_REPO_NAME.git"
+		use
+		git pull
+		echo
+	done
+	hook post-pull
+}
+
+push() {
+	hook pre-push
+	for VCSH_REPO_NAME in $(list); do
+		printf "$VCSH_REPO_NAME: "
+		export GIT_DIR="$VCSH_REPO_D/$VCSH_REPO_NAME.git"
+		use
+		git push
+		echo
+	done
+	hook post-push
+}
+
+retire() {
+	unset VCSH_DIRECTORY
+}
+
 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
 
+	# Now that the repository has been renamed, we need to fix up its configuration
+	# Overwrite old name..
+	GIT_DIR="$GIT_DIR_NEW"
+	VCSH_REPO_NAME="$VCSH_REPO_NAME_NEW"
+	# ..and clobber all old configuration
+	upgrade
 }
 
 run() {
 	hook pre-run
 	use
-	$VCSH_EXTERNAL_COMMAND
+	"$@"
 	hook post-run
 }
 
-setup() {
-	hook pre-setup
-	use
-	git config core.worktree     "$GIT_WORK_TREE"
-	git config core.excludesfile ".gitignore.d/$VCSH_REPO_NAME"
+status() {
+	if [ ! "x$VCSH_REPO_NAME" = "x" ]; then
+		export GIT_DIR="$VCSH_REPO_D/$VCSH_REPO_NAME.git"
+		use
+		git status --short --untracked-files='no'
+	else
+		for VCSH_REPO_NAME in $(list); do
+			echo "$VCSH_REPO_NAME:"
+			export GIT_DIR="$VCSH_REPO_D/$VCSH_REPO_NAME.git"
+			use
+			git status --short --untracked-files='no'
+			echo
+		done
+	fi
+}
+
+upgrade() {
+	hook pre-upgrade
+	# fake-bare repositories are not bare, actually. Set this to false
+	# because otherwise Git complains "fatal: core.bare and core.worktree
+	# do not make sense"
+	git config core.bare false
+	# core.worktree may be absolute or relative to $GIT_DIR, depending on
+	# user preference
+	if [ ! "x$VCSH_WORKTREE" = 'xabsolute' ]; then
+		git config core.worktree $(cd $GIT_DIR && GIT_WORK_TREE="$VCSH_BASE" git rev-parse --show-cdup)
+	elif [ ! "x$VCSH_WORKTREE" = 'xrelative' ]; then
+		git config core.worktree "$VCSH_BASE"
+	fi
+	[ ! "x$VCSH_GITIGNORE" = 'xnone' ] && git config core.excludesfile ".gitignore.d/$VCSH_REPO_NAME"
 	git config vcsh.vcsh         'true'
+	use
 	[ -e "$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME" ] && git add -f "$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME"
-	hook post-setup
+	hook post-upgrade
 }
 
 use() {
 	git_dir_exists
-	export GIT_WORK_TREE="$(git config --get core.worktree)"
 	export VCSH_DIRECTORY="$VCSH_REPO_NAME"
 }
 
+which() {
+	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: $VCSH_FILE"
+		done
+	done | sort -u
+}
+
 write_gitignore() {
+	# Don't do anything if the user does not want to write gitignore
+	if [ "x$VCSH_GITIGNORE" = 'xnone' ]; then
+		info "Not writing gitignore as '\$VCSH_GITIGNORE' is set to 'none'"
+		exit
+	fi
+
 	use
 	cd "$VCSH_BASE" || fatal "could not enter '$VCSH_BASE'" 11
 	gitignores=$(for file in $(git ls-files); do
@@ -192,12 +357,17 @@ write_gitignore() {
 			file="$new"
 		done;
 	done | sort -u)
-	tempfile=$(mktemp) || fatal "could not create tempfile" 51
+
+	# Contrary to GNU mktemp, mktemp on BSD/OSX requires a template for temp files
+	# Use the template GNU mktemo defaults to
+	# The downside to this is that we need to account for unset TMPDIR
+	tempfile=$(mktemp "${TMPDIR:-/tmp}/tmp.XXXXXXXXXX") || fatal "could not create tempfile: '${tempfile}'" 51
+
 	echo '*' > "$tempfile" || fatal "could not write to '$tempfile'" 57
 	for gitignore in $gitignores; do
-		echo "$gitignore" | sed 's/^/!/' >> "$tempfile" || fatal "could not write to '$tempfile'" 57
-		if [ x$VCSH_GITIGNORE = x'recursive' ] && [ -d "$gitignore" ]; then
-			{ echo "$gitignore/*" | sed 's/^/!/' >> "$tempfile" || fatal "could not write to '$tempfile'" 57; }
+		echo "$gitignore" | sed 's@^@!/@' >> "$tempfile" || fatal "could not write to '$tempfile'" 57
+		if [ "x$VCSH_GITIGNORE" = 'xrecursive' ] && [ -d "$gitignore" ]; then
+			{ echo "$gitignore/*" | sed 's@^@!/@' >> "$tempfile" || fatal "could not write to '$tempfile'" 57; }
 		fi
 	done
 	if diff -N "$tempfile" "$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME" > /dev/null; then
@@ -213,45 +383,79 @@ write_gitignore() {
 		fatal "could not move '$tempfile' to '$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME'" 53
 }
 
-if [ ! x$VCSH_GITIGNORE = x'exact' ] && [ ! x$VCSH_GITIGNORE = x'recursive' ]; then
-	fatal "\$VCSH_GITIGNORE must be either 'exact' or 'recursive'" 1
+debug `git version`
+
+if [ ! "x$VCSH_GITIGNORE" = 'xexact' ] && [ ! "x$VCSH_GITIGNORE" = 'xnone' ] && [ ! "x$VCSH_GITIGNORE" = 'xrecursive' ]; then
+	fatal "'\$VCSH_GITIGNORE' must equal 'exact', 'none', or 'recursive'" 1
 fi
 
-if [ "$1" = 'clone' ]; then
-	[ -z $2 ] && fatal "$1: please specify a remote" 1
-	export VCSH_COMMAND="$1"
+export VCSH_COMMAND="$1"
+
+case "$VCSH_COMMAND" in
+	clon|clo|cl) VCSH_COMMAND=clone;;
+	commi|comm|com|co) VCSH_COMMAND=commit;;
+	delet|dele|del|de) VCSH_COMMAND=delete;;
+	ente|ent|en) VCSH_COMMAND=enter;;
+	hel|he) VCSH_COMMAND=help;;
+	ini|in) VCSH_COMMAND=init;;
+	pul) VCSH_COMMAND=pull;;
+	pus) VCSH_COMMAND=push;;
+	renam|rena|ren|re) VCSH_COMMAND=rename;;
+	ru) VCSH_COMMAND=run;;
+	statu|stat|sta|st) VCSH_COMMAND=status;;
+	upgrad|upgra|upgr|up) VCSH_COMMAND=upgrade;;
+	versio|versi|vers|ver|ve) VCSH_COMMAND=version;;
+	which|whi|wh) VCSH_COMMAND=which;;
+	write|writ|wri|wr) VCSH_COMMAND=write-gitignore;;
+esac    
+
+if [ "$VCSH_COMMAND" = 'clone' ]; then
+	[ -z "$2" ] && fatal "$VCSH_COMMAND: please specify a remote" 1
 	GIT_REMOTE="$2"
 	[ -n "$3" ] && VCSH_REPO_NAME="$3" || VCSH_REPO_NAME=$(basename "$GIT_REMOTE" .git)
+	[ -z "$VCSH_REPO_NAME" ] && fatal "$VCSH_COMMAND: could not determine repository name" 1
 	export VCSH_REPO_NAME
 	export GIT_DIR="$VCSH_REPO_D/$VCSH_REPO_NAME.git"
-elif [ "$1" = 'delete' ] ||
-     [ "$1" = 'enter' ] ||
-     [ "$1" = 'init' ] ||
-     [ "$1" = 'list-tracked-by' ] ||
-     [ "$1" = 'rename' ] ||
-     [ "$1" = 'run' ] ||
-     [ "$1" = 'setup' ] ||
-     [ "$1" = 'write-gitignore' ]; then
-	[ -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="$1"
+elif [ "$VCSH_COMMAND" = 'version' ]; then
+	echo "$SELF $VERSION"
+	git version
+	exit
+elif [ "$VCSH_COMMAND" = 'which' ]; then
+	[ -z "$2" ] && fatal "$VCSH_COMMAND: please specify a filename" 1
+	[ -n "$3" ] && fatal "$VCSH_COMMAND: too many parameters" 1
+	export VCSH_COMMAND_PARAMETER="$2"
+elif [ "$VCSH_COMMAND" = 'delete' ]           ||
+     [ "$VCSH_COMMAND" = 'enter' ]            ||
+     [ "$VCSH_COMMAND" = 'init' ]             ||
+     [ "$VCSH_COMMAND" = 'list-tracked-by' ]  ||
+     [ "$VCSH_COMMAND" = 'rename' ]           ||
+     [ "$VCSH_COMMAND" = 'run' ]              ||
+     [ "$VCSH_COMMAND" = 'upgrade' ]          ||
+     [ "$VCSH_COMMAND" = 'write-gitignore' ]; then
+	[ -z $2 ]                                 && fatal "$VCSH_COMMAND: please specify repository to work on" 1
+	[ "$VCSH_COMMAND" = 'rename' -a -z "$3" ] && fatal "$VCSH_COMMAND: please specify a target name" 1
+	[ "$VCSH_COMMAND" = 'run'    -a -z "$3" ] && fatal "$VCSH_COMMAND: please specify a command" 1
 	export VCSH_REPO_NAME="$2"
 	export GIT_DIR="$VCSH_REPO_D/$VCSH_REPO_NAME.git"
-	[ "$VCSH_COMMAND" = 'rename' ]         && export GIT_DIR_NEW="$VCSH_REPO_D/$3.git"
-	[ "$VCSH_COMMAND" = 'run' ] && shift 2 && export VCSH_EXTERNAL_COMMAND="$*"
-	[ "$VCSH_COMMAND" = 'write-gitignore' ]
-elif [ "$1" = 'list' ] ||
-     [ "$1" = 'list-tracked' ]; then
-	export VCSH_COMMAND="$1"
+	[ "$VCSH_COMMAND" = 'rename' ] && { export VCSH_REPO_NAME_NEW="$3";
+	                                    export GIT_DIR_NEW="$VCSH_REPO_D/$VCSH_REPO_NAME_NEW.git"; }
+	[ "$VCSH_COMMAND" = 'run' ]    && shift 2
+elif [ "$VCSH_COMMAND" = 'commit' ] ||
+     [ "$VCSH_COMMAND" = 'list' ] ||
+     [ "$VCSH_COMMAND" = 'list-tracked' ] ||
+     [ "$VCSH_COMMAND" = 'pull' ] ||
+     [ "$VCSH_COMMAND" = 'push' ]; then
+	:
+elif [ "$VCSH_COMMAND" = 'status' ]; then
+	export VCSH_REPO_NAME="$2"
 elif [ -n "$2" ]; then
 	export VCSH_COMMAND='run'
 	export VCSH_REPO_NAME="$1"
 	export GIT_DIR="$VCSH_REPO_D/$VCSH_REPO_NAME.git"
 	[ -d $GIT_DIR ] || { help; exit 1; }
 	shift 1
-	export VCSH_EXTERNAL_COMMAND="git $*"
-elif [ -n "$1" ]; then
+	set -- "git" "$@"
+elif [ -n "$VCSH_COMMAND" ]; then
 	export VCSH_COMMAND='enter'
 	export VCSH_REPO_NAME="$1"
 	export GIT_DIR="$VCSH_REPO_D/$VCSH_REPO_NAME.git"
@@ -265,23 +469,27 @@ fi
 # Mangle the input to fit normal operation.
 if echo $VCSH_REPO_NAME | grep -q '/'; then
 	export GIT_DIR=$VCSH_REPO_NAME
-	export VCSH_REPO_NAME=$(basename $VCSH_REPO_NAME .git)
+	export VCSH_REPO_NAME=$(basename "$VCSH_REPO_NAME" .git)
 fi
 
-
-for check_directory in "$VCSH_REPO_D" "$VCSH_BASE/.gitignore.d"
-do
+check_dir() {
+	check_directory="$1"
 	if [ ! -d "$check_directory" ]; then
 		if [ -e "$check_directory" ]; then
 			fatal "'$check_directory' exists but is not a directory" 13
 		else
-			info "attempting to create '$check_directory'"
+			verbose "attempting to create '$check_directory'"
 			mkdir -p "$check_directory" || fatal "could not create '$check_directory'" 50
 		fi
 	fi
-done
+}
+
+check_dir "$VCSH_REPO_D"
+[ ! "x$VCSH_GITIGNORE" = 'xnone' ] && check_dir "$VCSH_BASE/.gitignore.d"
 
 verbose "$VCSH_COMMAND begin"
 export VCSH_COMMAND=$(echo $VCSH_COMMAND | sed 's/-/_/g')
-$VCSH_COMMAND
+hook pre-command
+$VCSH_COMMAND "$@"
+hook post-command
 verbose "$VCSH_COMMAND end, exiting"