X-Git-Url: https://git.madduck.net/code/vcsh.git/blobdiff_plain/eac17e45f9d9f2713c39a8a27c0aa0a779ebb07c..27a39552a3fad5b70b01b96c7485a6f64c501842:/vcsh?ds=inline

diff --git a/vcsh b/vcsh
index 4732e46..fb99ffb 100755
--- a/vcsh
+++ b/vcsh
@@ -1,30 +1,93 @@
 #!/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.mailinglist@gmail.com>, 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 compability 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.
+
+basename() {
+	local f; f="${1##*/}"
+	[ -z "$2" ] || f="${f%$2}"
+	echo "$f"
+}
+
+SELF=$(basename $0)
+VERSION='1.2'
+
+fatal() {
+	echo "$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
+	elif [ "$1" = '-v' ];then
+		VCSH_VERBOSE=1
+	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"
+
+# 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 "$VCSH_DEBUG" ]                  && set -vx
+
+# Read defaults
 [ -z "$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)
 
 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
+   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
@@ -34,7 +97,9 @@ help() {
           <newname>     Rename repository
    run <repo> \\
        <command>        Use this repository
-   setup                Set up repository with recommended settings
+   setup <repo>         Set up repository with 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 +115,6 @@ 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: $1" >&2
 }
@@ -87,20 +147,20 @@ clone() {
 delete() {
 	cd "$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() {
@@ -117,6 +177,7 @@ 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
 }
@@ -131,8 +192,8 @@ 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
 }
 
@@ -162,7 +223,7 @@ rename() {
 run() {
 	hook pre-run
 	use
-	$VCSH_EXTERNAL_COMMAND
+	"$@"
 	hook post-run
 }
 
@@ -182,6 +243,14 @@ use() {
 	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: $VCSH_FILE"
+		done
+	done | sort -u
+}
+
 write_gitignore() {
 	use
 	cd "$VCSH_BASE" || fatal "could not enter '$VCSH_BASE'" 11
@@ -195,9 +264,9 @@ write_gitignore() {
 	tempfile=$(mktemp) || fatal "could not create 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
+		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 '$tempfile'" 57; }
 		fi
 	done
 	if diff -N "$tempfile" "$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME" > /dev/null; then
@@ -213,24 +282,32 @@ 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
+if [ ! "x$VCSH_GITIGNORE" = 'xexact' ] && [ ! "x$VCSH_GITIGNORE" = 'xrecursive' ]; then
+	fatal "'\$VCSH_GITIGNORE' must be either 'exact' or 'recursive'" 1
 fi
 
 if [ "$1" = 'clone' ]; then
-	[ -z $2 ] && fatal "$1: please specify a remote" 1
+	[ -z "$2" ] && fatal "$1: please specify a remote" 1
 	export VCSH_COMMAND="$1"
 	GIT_REMOTE="$2"
 	[ -n "$3" ] && VCSH_REPO_NAME="$3" || VCSH_REPO_NAME=$(basename "$GIT_REMOTE" .git)
 	export VCSH_REPO_NAME
 	export GIT_DIR="$VCSH_REPO_D/$VCSH_REPO_NAME.git"
-elif [ "$1" = 'delete' ] ||
-     [ "$1" = 'enter' ] ||
-     [ "$1" = 'init' ] ||
-     [ "$1" = 'list-tracked-by' ] ||
-     [ "$1" = 'rename' ] ||
-     [ "$1" = 'run' ] ||
-     [ "$1" = 'setup' ] ||
+elif [ "$1" = 'version' ]; then
+	echo "$SELF $VERSION"
+	exit
+elif [ "$1" = 'which' ]; then
+	[ -z "$2" ] && fatal "$1: please specify a filename" 1
+	[ -n "$3" ] && fatal "$1: too many parameters" 1
+	export VCSH_COMMAND="$1"
+	export VCSH_COMMAND_PARAMETER="$2"
+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
@@ -239,7 +316,7 @@ elif [ "$1" = 'delete' ] ||
 	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" = 'run' ] && shift 2
 	[ "$VCSH_COMMAND" = 'write-gitignore' ]
 elif [ "$1" = 'list' ] ||
      [ "$1" = 'list-tracked' ]; then
@@ -250,7 +327,7 @@ elif [ -n "$2" ]; then
 	export GIT_DIR="$VCSH_REPO_D/$VCSH_REPO_NAME.git"
 	[ -d $GIT_DIR ] || { help; exit 1; }
 	shift 1
-	export VCSH_EXTERNAL_COMMAND="git $*"
+	set -- "git" "$@"
 elif [ -n "$1" ]; then
 	export VCSH_COMMAND='enter'
 	export VCSH_REPO_NAME="$1"
@@ -265,7 +342,7 @@ 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
 
 
@@ -283,5 +360,7 @@ done
 
 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"