X-Git-Url: https://git.madduck.net/code/vcsh.git/blobdiff_plain/3a4566421e1f718a9b2dc2c69212c291660b296c..b5a06ee258118b18985435c24a07284038f175f7:/vcsh diff --git a/vcsh b/vcsh index c26b50a..1e9f2d5 100755 --- a/vcsh +++ b/vcsh @@ -1,132 +1,515 @@ #!/bin/sh -#set -x +# This program is licensed under the GNU GPL version 2 or later. +# (c) Richard "RichiH" Hartmann , 2011-2014 +# 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 "$VCSH_DEBUG" ] && set -vx + + +# If '.git-HEAD' is appended to the version, you are seeing an unreleased +# version of vcsh; the master branch is supposed to be clean at all times +# so you can most likely just use it nonetheless +VERSION='1.20140313' SELF=$(basename $0) -[ -z $XDG_CONFIG_HOME ] && XDG_CONFIG_HOME="$HOME/.config" -VCSH_BASE="$XDG_CONFIG_HOME/vcsh/repo.d" + +fatal() { + echo "$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 +: ${XDG_CONFIG_HOME:=$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 +: ${VCSH_REPO_D:=$XDG_CONFIG_HOME/vcsh/repo.d} +: ${VCSH_HOOK_D:=$XDG_CONFIG_HOME/vcsh/hooks-enabled} +: ${VCSH_BASE:=$HOME} +: ${VCSH_GITIGNORE:=exact} +: ${VCSH_GITATTRIBUTES:=none} +: ${VCSH_WORKTREE:=absolute} + +if [ ! "x$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 + echo "usage: $SELF - help Display this help + options: + -c Source file + -d Enable debug mode + -v Enable verbose mode - list List all repos + commands: + clone \\ + [] Clone from an existing repository + commit Commit in all repositories + delete Delete an existing repository + enter Enter repository; spawn new instance of \$SHELL + help Display this help text + init Initialize a new repository + list List all repositories + list-tracked List all files tracked by vcsh + list-tracked-by \\ + List files tracked by a repository + pull Pull from all vcsh remotes + push Push to vcsh remotes + rename \\ + Rename repository + run \\ + Use this repository + status [] Show statuses of all/one vcsh repositories + upgrade Upgrade repository to currently recommended settings + version Print version information + which Find substring in name of any tracked file + write-gitignore \\ + Write .gitignore.d/ via git ls-files - use Use this repository - run - Use this repository + Shortcut to run git commands directly + Shortcut to enter repository" >&2 +} - init Initialize a new repository - clone - Clone from an existing repository +debug() { + [ -n "$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 [ $(git ls-remote origin master 2> /dev/null | wc -l ) -lt 1 ]; then + info "remote is empty, not merging anything" + exit fi + git fetch + hook pre-merge + git ls-tree -r --name-only origin/master | (while read object; do + [ -e "$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." 17 + git merge origin/master + hook post-merge + 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 + VCSH_COMMAND_RETURN_CODE=$? + echo + done + hook post-commit +} + +delete() { + cd "$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: - export GIT_DIR - export GIT_WORK_TREE="$(git config --get core.worktree)" - export VCSH_DIRECTORY="$REPO_NAME" +$files + +AGAIN, THIS WILL DELETE YOUR DATA! +To continue, type 'Yes, do as I say'" + read answer + [ "x$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 $GIT_DIR ]] && - echo "$(basename $0): fatal: $GIT_DIR exists" && - return 21 - export GIT_WORK_TREE="$HOME" - mkdir -p $GIT_WORK_TREE - cd $GIT_WORK_TREE || - (echo "$(basename $0): fatal: could not enter $GIT_WORK_TREE" && - exit 20) || exit 20 - cd $GIT_WORK_TREE - git init - git config core.worktree $GIT_WORK_TREE -} - -leave() { - unset GIT_DIR - unset GIT_WORK_TREE - unset VCSH_DIRECTORY + hook pre-init + [ ! -e "$GIT_DIR" ] || fatal "'$GIT_DIR' exists" 10 + mkdir -p "$VCSH_BASE" || fatal "could not create '$VCSH_BASE'" 50 + cd "$VCSH_BASE" || fatal "could not enter '$VCSH_BASE'" 11 + git init --shared=0600 + upgrade + hook post-init +} + +list() { + for repo in "$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 } -if [ "$1" = 'help' ] || [ $# -eq 0 ]; then - help - [ "$1" = 'help' ] - return $? +list_tracked() { + for VCSH_REPO_NAME in $(list); do + get_files + done | sort -u +} -elif [ "$1" = 'list' ]; then - for i in $VCSH_BASE/*.git; do - echo $(basename $i .git) +list_tracked_by() { + use + 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 + VCSH_COMMAND_RETURN_CODE=$? + echo done - return 0 + 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 + VCSH_COMMAND_RETURN_CODE=$? + echo + done + hook post-push +} + +retire() { + unset VCSH_DIRECTORY +} -elif [ "$1" = 'run' ]; then - use $2 - shift 2 +rename() { + git_dir_exists + [ -d "$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="$VCSH_REPO_NAME_NEW" + # ..and clobber all old configuration + upgrade +} + +run() { + hook pre-run + use "$@" - leave - return 0 - -elif [ "$1" = 'use' ]; then - if [[ -o NO_IGNORE_EOF ]]; then - export VCSH_NO_IGNORE_EOF=1 - setopt IGNORE_EOF - vcsh_exit() {vcsh exit; zle reset-prompt} - zle -N vcsh_exit - bindkey '^d' 'vcsh_exit' + VCSH_COMMAND_RETURN_CODE=$? + hook post-run +} + +status() { + if [ ! "x$VCSH_REPO_NAME" = "x" ]; then + export GIT_DIR="$VCSH_REPO_D/$VCSH_REPO_NAME.git" + use + git status --short --untracked-files='no' + VCSH_COMMAND_RETURN_CODE=$? + 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' + VCSH_COMMAND_RETURN_CODE=$? + echo + done fi - use $2 - buildPS1 - return 0 - -elif [ "$1" = 'clone' ]; then - export GIT_REMOTE="$2" - export REPO_NAME="$3" - export GIT_DIR="$VCSH_BASE/$REPO_NAME.git" - init +} - 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 $i ]] && - echo "$(basename $0): error: $i exists." && - CONFLICT=1; - done - [[ -n $CONFLICT ]] && - echo "$(basename $0): fatal: will stop after fetching and not try to merge!\n" && - exit 3 - git merge origin/master - vcsh use $REPO_NAME +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" + [ ! "x$VCSH_GITATTRIBUTES" = 'xnone' ] && git config core.attributesfile ".gitattributes.d/$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" + [ -e "$VCSH_BASE/.gitattributes.d/$VCSH_REPO_NAME" ] && git add -f "$VCSH_BASE/.gitattributes.d/$VCSH_REPO_NAME" + hook post-upgrade +} -elif [ "$1" = 'init' ]; then - export REPO_NAME="$2" - export GIT_DIR="$VCSH_BASE/$REPO_NAME.git" - init - vcsh use $REPO_NAME +use() { + git_dir_exists + export VCSH_DIRECTORY="$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 -elif [ "$1" = 'exit' ]; then - if [[ $VCSH_NO_IGNORE_EOF -gt 0 ]]; then - unset VCSH_NO_IGNORE_EOF - setopt NO_IGNORE_EOF + use + cd "$VCSH_BASE" || fatal "could not enter '$VCSH_BASE'" 11 + OLDIFS="$IFS" + IFS=$(printf '\n\t') + gitignores=$(for file in $(git ls-files); do + while true; do + echo $file; new="${file%/*}" + [ "$file" = "$new" ] && break + file="$new" + done; + done | sort -u) + + # Contrary to GNU mktemp, mktemp on BSD/OSX requires a template for temp files + # Using a template makes GNU mktemp default to $PWD and not #TMPDIR for tempfile location + # To make every OS happy, set full path explicitly + tempfile=$(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$VCSH_GITIGNORE" = 'xrecursive' ] && [ -d "$gitignore" ]; then + { echo "$gitignore/*" | sed 's@^@!/@' >> "$tempfile" || fatal "could not write to '$tempfile'" 57; } + fi + done + IFS="$OLDIFS" + if diff -N "$tempfile" "$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME" > /dev/null; then + rm -f "$tempfile" || error "could not delete '$tempfile'" + exit fi - leave - buildPS1 - return 0 + if [ -e "$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 +} + +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 + +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/$VCSH_REPO_NAME.git" +elif [ "$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 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 $GIT_DIR ] || { help; exit 1; } + shift 1 + set -- "git" "$@" +elif [ -n "$VCSH_COMMAND" ]; then + export VCSH_COMMAND='enter' + export VCSH_REPO_NAME="$1" + export GIT_DIR="$VCSH_REPO_D/$VCSH_REPO_NAME.git" + [ -d $GIT_DIR ] || { help; exit 1; } else - help - return 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 +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 + verbose "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" +[ ! "x$VCSH_GITATTRIBUTES" = 'xnone' ] && check_dir "$VCSH_BASE/.gitattributes.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" +exit $VCSH_COMMAND_RETURN_CODE