X-Git-Url: https://git.madduck.net/code/vcsh.git/blobdiff_plain/49c0ab743c673d03ae1057156466a68a9455f5dc..e71ab905d95d7f5a1f343372affa057f2e71cefa:/vcsh diff --git a/vcsh b/vcsh index e3612b7..4fb1c45 100755 --- a/vcsh +++ b/vcsh @@ -1,152 +1,354 @@ #!/bin/sh -#set -x +# This program is licensed under the GNU GPL version 2 or later. +# (c) Richard "RichiH" Hartmann , 2011-2012 +# 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, +# this software will most likely follow suit. SELF=$(basename $0) -[ -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 + elif [ "$1" = '-v' ];then + VCSH_VERBOSE=1 + 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; +} -help() { - echo "usage: $SELF - help Display this help +# Read configuration and set defaults if anything's not set +[ -n "$VCSH_DEBUG" ] && set -vx +[ -z "$XDG_CONFIG_HOME" ] && XDG_CONFIG_HOME="$HOME/.config" - list List all repos +# 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 "$VCSH_DEBUG" ] && set -vx - use Use this repository - run - Use this repository +# Read defaults +[ -z "$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' - init Initialize a new repository - clone - [] Clone from an existing repository - exit Exit vcsh mode" >&2 -} +help() { + echo "usage: $SELF -use() { - REPO_NAME="$1" - GIT_DIR="$VCSH_BASE/$REPO_NAME.git" + options: + -c Source file + -d Enable debug mode + -v Enable verbose mode - if [ ! -d "$GIT_DIR" ]; then - echo E: no repository found for "$REPO_NAME" >&2 - return 2 - fi + commands: + clone \\ + [] Clone from an existing repository + delete Delete an existing repository + enter Enter repository; spawn new instance of \$SHELL + help Display this help text + init Initialize a new repository + list List all repositories + list-tracked List all files tracked by vcsh + list-tracked-by \\ + List files tracked by a repository + rename \\ + Rename repository + run \\ + Use this repository + setup Set up repository with recommended settings + which Find substring in name of any tracked file + write-gitignore \\ + Write .gitignore.d/ via git ls-files - export GIT_DIR - export GIT_WORK_TREE="$(git config --get core.worktree)" - export VCSH_DIRECTORY="$REPO_NAME" + Shortcut to run git commands directly + Shortcut to enter repository" >&2 } -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 - git init - git config core.worktree $GIT_WORK_TREE +debug() { + [ -n "$VCSH_DEBUG" ] && echo "$SELF: debug: $@" } -leave() { - unset GIT_DIR - unset GIT_WORK_TREE - unset VCSH_DIRECTORY +verbose() { + if [ -n "$VCSH_DEBUG" ] || [ -n "$VCSH_VERBOSE" ]; then echo "$SELF: verbose: $@"; fi } -if [ "$1" = 'help' ] || [ $# -eq 0 ]; then - help - [ "$1" = 'help' ] - return $? +error() { + echo "$SELF: error: $1" >&2 +} -elif [ "$1" = 'list' ]; then - for i in $VCSH_BASE/*.git; do - echo $(basename $i .git) - done - return 0 - -elif [ "$1" = 'run' ]; then - use $2 - shift 2 - "$@" - leave - return 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 $2 - buildPS1 - return 0 +info() { + echo "$SELF: info: $1" +} -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" +clone() { init - - git remote add origin $GIT_REMOTE + git remote add origin "$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 i in $(git ls-tree -r origin/master | awk '{print $4}'); do - [[ -e $i ]] && - echo "$SELF: error: $i exists." && - CONFLICT=1; + for object in $(git ls-tree -r origin/master | awk '{print $4}'); do + [ -e "$object" ] && + error "'$object' exists." && + VCSH_CONFLICT=1; done - [[ -n $CONFLICT ]] && - echo "$SELF: fatal: will stop after fetching and not try to merge!\n" && - exit 3 + [ "$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 - vcsh use $REPO_NAME +} -elif [ "$1" = 'init' ]; then - export REPO_NAME="$2" - export GIT_DIR="$VCSH_BASE/$REPO_NAME.git" - init - vcsh use $REPO_NAME +delete() { + cd "$VCSH_BASE" || fatal "could not enter '$VCSH_BASE'" 11 + use + info "This operation WILL DETROY DATA!" + files=$(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 -r "$GIT_DIR" || error "could not delete '$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 +} -elif [ "$1" = 'exit' ]; then - if [[ $VCSH_NO_IGNORE_EOF -gt 0 ]]; then - unset VCSH_NO_IGNORE_EOF - setopt NO_IGNORE_EOF +hook() { + for hook in $VCSH_HOOK_D/$1* $VCSH_HOOK_D/$VCSH_REPO_NAME.$1*; do + [ -x "$hook" ] || continue + info "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 '$GIT_WORK_TREE'" 11 + git init + setup +} + +list() { + for repo in "$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 + $VCSH_EXTERNAL_COMMAND + hook post-run +} + +setup() { + hook pre-setup + use + git config core.worktree "$GIT_WORK_TREE" + git config core.excludesfile ".gitignore.d/$VCSH_REPO_NAME" + git config vcsh.vcsh 'true' + [ -e "$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME" ] && git add -f "$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME" + hook post-setup +} + +use() { + git_dir_exists + export GIT_WORK_TREE="$(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: $VCSH_FILE" + done + done | sort -u +} + +write_gitignore() { + use + cd "$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 - return 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" = '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 + [ "$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 && export VCSH_EXTERNAL_COMMAND="$*" + [ "$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 + export VCSH_EXTERNAL_COMMAND="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 - 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 + +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"