#!/bin/sh # This program is licensed under the GNU GPL version 2 or later. # (c) Richard "RichiH" Hartmann , 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 $0) VERSION='1.2' fatal() { echo "$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' ] || [ "$1" = '--debug' ]; then set -vx VCSH_DEBUG=1 echo "$SELF $VERSION" elif [ "$1" = '-v' ];then VCSH_VERBOSE=1 echo "$SELF $VERSION" elif [ "$1" = '-c' ];then VCSH_OPTION_CONFIG=$OPTARG fi shift 1 done 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: $SELF options: -c Source file -d Enable debug mode -v Enable verbose mode commands: clone \\ [] Clone from an existing repository delete Delete an existing repository enter Enter repository; spawn new instance of \$SHELL help Display this help text init Initialize a new repository list List all repositories list-tracked List all files tracked by vcsh list-tracked-by \\ List files tracked by a repository rename \\ Rename repository run \\ Use this repository upgrade Upgrade repository to currently recommended settings version Print version information which Find substring in name of any tracked file write-gitignore \\ Write .gitignore.d/ via git ls-files Shortcut to run git commands directly Shortcut to enter repository" >&2 } debug() { [ -n "$VCSH_DEBUG" ] && echo "$SELF: debug: $@" } verbose() { if [ -n "$VCSH_DEBUG" ] || [ -n "$VCSH_VERBOSE" ]; then echo "$SELF: verbose: $@"; fi } error() { echo "$SELF: error: $1" >&2 } info() { echo "$SELF: info: $1" } clone() { init git remote add origin "$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 $VCSH_REPO_NAME git pull' to finish cloning.\n" 17 git merge origin/master } delete() { cd "$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 "$GIT_DIR" ] || fatal "'$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 '$GIT_WORK_TREE'" 11 git init upgrade } list() { for repo in "$VCSH_REPO_D"/*.git; do [ -d "$repo" ] && [ -r "$repo" ] && echo $(basename "$repo" .git) done } get_files() { export GIT_DIR="$VCSH_REPO_D/$VCSH_REPO_NAME.git" git ls-files } 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' '$GIT_DIR_NEW'" 52 } run() { hook pre-run use "$@" hook post-run } upgrade() { hook pre-upgrade use git config core.worktree "$GIT_WORK_TREE" [ ! "x$VCSH_GITIGNORE" = 'xnone' ] && 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/$VCSH_REPO_NAME" hook post-upgrade } use() { git_dir_exists export GIT_WORK_TREE="$(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 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$VCSH_GITIGNORE" = 'xrecursive' ] && [ -d "$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 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 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' ] && [ ! "x$VCSH_GITIGNORE" = 'xnone' ]; then fatal "'\$VCSH_GITIGNORE' must equal 'exact', 'recursive', or 'none'" 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 # $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 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 '$check_directory'" mkdir -p "$check_directory" || fatal "could not create '$check_directory'" 50 fi fi } check_dir "$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') hook pre-command $VCSH_COMMAND "$@" hook post-command verbose "$VCSH_COMMAND end, exiting"