#!/bin/sh
-#set -x
+# This program is licensed under the GNU GPL version 2 or later.
+# (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 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 "$VCSH_DEBUG" ] && set -vx
+
+basename() {
+ # Implemented in shell to avoid spawning another process
+ local file
+ file="${1##*/}"
+ [ -z "$2" ] || file="${file%$2}"
+ echo "$file"
+}
SELF=$(basename $0)
+VERSION='1.20130614'
-[ -z $XDG_CONFIG_HOME ] && XDG_CONFIG_HOME="$HOME/.config"
-for check_directory in $XDG_CONFIG_HOME $XDG_CONFIG_HOME/vcsh $XDG_CONFIG_HOME/vcsh/repo.d
-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
- else
- mkdir $check_directory || (echo "$SELF: error: could not create $check_directory" >&2; exit 2)
- fi
+fatal() {
+ echo "$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' ] || [ "$1" = '--debug' ]; then
+ set -vx
+ VCSH_DEBUG=1
+ echo "$SELF $VERSION"
+ elif [ "$1" = '-v' ];then
+ VCSH_VERBOSE=1
+ echo "$SELF $VERSION"
+ elif [ "$1" = '-c' ];then
+ VCSH_OPTION_CONFIG=$OPTARG
fi
+ shift 1
done
-VCSH_BASE="$XDG_CONFIG_HOME/vcsh/repo.d"
+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'
+
help() {
- echo "usage: $SELF <args>
+ echo "usage: $SELF <options> <command>
- help Display this help
+ options:
+ -c <file> Source file
+ -d Enable debug mode
+ -v Enable verbose mode
- list List all repos
+ commands:
+ clone <remote> \\
+ [<repo>] Clone from an existing repository
+ delete <repo> Delete an existing repository
+ enter <repo> Enter repository; spawn new instance of \$SHELL
+ help Display this help text
+ init <repo> Initialize a new repository
+ list List all repositories
+ list-tracked List all files tracked by vcsh
+ list-tracked-by \\
+ <repo> List files tracked by a repository
+ rename <repo> \\
+ <newname> Rename repository
+ run <repo> \\
+ <command> Use this repository
+ upgrade <repo> Upgrade repository to currently recommended settings
+ version Print version information
+ which <substring> Find substring in name of any tracked file
+ write-gitignore \\
+ <repo> Write .gitignore.d/<repo> via git ls-files
- use <repo> Use this repository
- run <repo>
- <command> Use this repository
+ <repo> <git command> Shortcut to run git commands directly
+ <repo> Shortcut to enter repository" >&2
+}
- init Initialize a new repository
- clone <remote>
- [<repo>] Clone from an existing repository
+debug() {
+ [ -n "$VCSH_DEBUG" ] && echo "$SELF: debug: $@"
+}
- exit Exit vcsh mode" >&2
+verbose() {
+ if [ -n "$VCSH_DEBUG" ] || [ -n "$VCSH_VERBOSE" ]; then echo "$SELF: verbose: $@"; fi
}
-use() {
- REPO_NAME="$1"
- GIT_DIR="$VCSH_BASE/$REPO_NAME.git"
+error() {
+ echo "$SELF: error: $1" >&2
+}
- if [ ! -d "$GIT_DIR" ]; then
- echo E: no repository found for "$REPO_NAME" >&2
- return 2
+info() {
+ echo "$SELF: info: $1"
+}
+
+clone() {
+ hook pre-clone
+ init
+ git remote add origin "$GIT_REMOTE"
+ git config branch.master.remote origin
+ git config branch.master.merge refs/heads/master
+ if [ $(git ls-remote origin master 2> /dev/null | wc -l ) -lt 1 ]; then
+ info "remote is empty, not merging anything"
+ exit
fi
+ git fetch
+ for object in $(git ls-tree -r origin/master | awk '{print $4}'); do
+ [ -e "$object" ] &&
+ error "'$object' exists." &&
+ VCSH_CONFLICT=1;
+ done
+ [ "$VCSH_CONFLICT" = '1' ] &&
+ fatal "will stop after fetching and not try to merge!
+ Once this situation has been resolved, run 'vcsh run $VCSH_REPO_NAME git pull' to finish cloning.\n" 17
+ git merge origin/master
+ hook post-clone
+}
- export GIT_DIR
- export GIT_WORK_TREE="$(git config --get core.worktree)"
- export VCSH_DIRECTORY="$REPO_NAME"
+delete() {
+ cd "$VCSH_BASE" || fatal "could not enter '$VCSH_BASE'" 11
+ use
+ info "This operation WILL DESTROY DATA!"
+ files=$(git ls-files)
+ echo "These files will be deleted:
+
+$files
+
+AGAIN, THIS WILL DELETE YOUR DATA!
+To continue, type 'Yes, do as I say'"
+ read answer
+ [ "x$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
+ rm -rf "$GIT_DIR" || error "could not delete '$GIT_DIR'"
+}
+
+enter() {
+ hook pre-enter
+ use
+ $SHELL
+ hook post-enter
+}
+
+git_dir_exists() {
+ [ -d "$GIT_DIR" ] || fatal "no repository found for '$VCSH_REPO_NAME'" 12
+}
+
+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() {
- [[ -e $GIT_DIR ]] &&
- echo "$SELF: fatal: $GIT_DIR exists" &&
- return 21
- export GIT_WORK_TREE="$HOME"
- mkdir -p $GIT_WORK_TREE
- cd $GIT_WORK_TREE ||
- (echo "$SELF: fatal: could not enter $GIT_WORK_TREE" &&
- exit 20) || exit 20
- cd $GIT_WORK_TREE
+ [ ! -e "$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
git init
- git config core.worktree $GIT_WORK_TREE
+ upgrade
}
-leave() {
- unset GIT_DIR
- unset GIT_WORK_TREE
- unset VCSH_DIRECTORY
+list() {
+ for repo in "$VCSH_REPO_D"/*.git; do
+ [ -d "$repo" ] && [ -r "$repo" ] && echo $(basename "$repo" .git)
+ done
}
-if [ "$1" = 'help' ] || [ $# -eq 0 ]; then
- help
- [ "$1" = 'help' ]
- exit $?
+get_files() {
+ export GIT_DIR="$VCSH_REPO_D/$VCSH_REPO_NAME.git"
+ git ls-files
+}
-elif [ "$1" = 'list' ]; then
- for i in $VCSH_BASE/*.git; do
- echo $(basename $i .git)
- done
- exit 0
+list_tracked() {
+ for VCSH_REPO_NAME in $(list); do
+ get_files
+ done | sort -u
+}
+
+list_tracked_by() {
+ use
+ git ls-files | sort -u
+}
+
+rename() {
+ git_dir_exists
+ [ -d "$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
-elif [ "$1" = 'run' ]; then
- use $2
- shift 2
+}
+
+run() {
+ hook pre-run
+ use
"$@"
- leave
- exit 0
-
-elif [ "$1" = 'use' ]; then
- if [[ -o NO_IGNORE_EOF ]]; then
- export VCSH_NO_IGNORE_EOF=1
- setopt IGNORE_EOF
- if [[ -n $ZSH_VERSION ]]; then
- vcsh_exit() {
- vcsh exit;
- zle reset-prompt;
- }
- fi
- zle -N vcsh_exit
- bindkey '^d' 'vcsh_exit'
- fi
- use $2
- buildPS1
- exit 0
+ hook post-run
+}
-elif [ "$1" = 'clone' ]; then
- GIT_REMOTE="$2"
- REPO_NAME="$3"
- [[ -z $REPO_NAME ]] && REPO_NAME=$(basename $GIT_REMOTE .git)
- export REPO_NAME
- export GIT_DIR="$VCSH_BASE/$REPO_NAME.git"
- init
+upgrade() {
+ hook pre-upgrade
+ use
+ git config core.worktree "$GIT_WORK_TREE"
+ git config core.excludesfile ".gitignore.d/$VCSH_REPO_NAME"
+ git config vcsh.vcsh 'true'
+ [ -e "$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME" ] && git add -f "$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME"
+ hook post-upgrade
+}
- git remote add origin $GIT_REMOTE
- git config branch.master.remote origin
- git config branch.master.merge refs/heads/master
- git fetch
- for i in $(git ls-tree -r origin/master | awk '{print $4}'); do
- [[ -e $i ]] &&
- echo "$SELF: error: $i exists." &&
- CONFLICT=1;
- done
- [[ -n $CONFLICT ]] &&
- echo "$SELF: fatal: will stop after fetching and not try to merge!\n" &&
- exit 3
- git merge origin/master
- vcsh use $REPO_NAME
+use() {
+ git_dir_exists
+ export GIT_WORK_TREE="$(git config --get core.worktree)"
+ export VCSH_DIRECTORY="$VCSH_REPO_NAME"
+}
-elif [ "$1" = 'init' ]; then
- export REPO_NAME="$2"
- export GIT_DIR="$VCSH_BASE/$REPO_NAME.git"
- init
- vcsh use $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
+}
-elif [ "$1" = 'exit' ]; then
- if [[ $VCSH_NO_IGNORE_EOF -gt 0 ]]; then
- unset VCSH_NO_IGNORE_EOF
- setopt NO_IGNORE_EOF
+write_gitignore() {
+ use
+ cd "$VCSH_BASE" || fatal "could not enter '$VCSH_BASE'" 11
+ gitignores=$(for file in $(git ls-files); do
+ while true; do
+ echo $file; new="${file%/*}"
+ [ "$file" = "$new" ] && break
+ file="$new"
+ done;
+ done | sort -u)
+ tempfile=$(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
+ if [ x$VCSH_GITIGNORE = x'recursive' ] && [ -d "$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
+ rm -f "$tempfile" || error "could not delete '$tempfile'"
+ exit
+ fi
+ if [ -e "$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME" ]; then
+ info "'$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME' differs from new data, moving it to '$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME.bak'"
+ mv -f "$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME" "$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME.bak" ||
+ fatal "could not move '$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME' to '$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME.bak'" 53
fi
- leave
- buildPS1
- exit 0
+ mv -f "$tempfile" "$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME" ||
+ fatal "could not move '$tempfile' to '$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME'" 53
+}
+
+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
+ 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 [ "$1" = 'version' ]; then
+ echo "$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" = 'upgrade' ] ||
+ [ "$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"
+ 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
+ [ "$VCSH_COMMAND" = 'write-gitignore' ]
+elif [ "$1" = 'list' ] ||
+ [ "$1" = 'list-tracked' ]; then
+ export VCSH_COMMAND="$1"
+elif [ -n "$2" ]; then
+ export VCSH_COMMAND='run'
+ export VCSH_REPO_NAME="$1"
+ export GIT_DIR="$VCSH_REPO_D/$VCSH_REPO_NAME.git"
+ [ -d $GIT_DIR ] || { help; exit 1; }
+ shift 1
+ set -- "git" "$@"
+elif [ -n "$1" ]; then
+ export VCSH_COMMAND='enter'
+ export VCSH_REPO_NAME="$1"
+ export GIT_DIR="$VCSH_REPO_D/$VCSH_REPO_NAME.git"
+ [ -d $GIT_DIR ] || { help; exit 1; }
else
- help
- exit 3
+ # $1 is empty, or 'help'
+ help && exit
+fi
+# Did we receive a directory instead of a name?
+# 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)
fi
+
+for check_directory in "$VCSH_REPO_D" "$VCSH_BASE/.gitignore.d"
+do
+ 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'"
+ mkdir -p "$check_directory" || fatal "could not create '$check_directory'" 50
+ fi
+ fi
+done
+
+verbose "$VCSH_COMMAND begin"
+export VCSH_COMMAND=$(echo $VCSH_COMMAND | sed 's/-/_/g')
+hook pre-command
+$VCSH_COMMAND "$@"
+hook post-command
+verbose "$VCSH_COMMAND end, exiting"
projects / code / vcsh.git / blobdiff