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265 lines
6.9 KiB
265 lines
6.9 KiB
#!/bin/sh
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function async_run()
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{
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{
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$1 &> /dev/null
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}&
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}
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function git_prompt_dir()
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{
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# assume the gitstatus.py is in the same directory as this script
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# code thanks to http://stackoverflow.com/questions/59895
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if [ -z "${__GIT_PROMPT_DIR}" ]; then
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local SOURCE="${BASH_SOURCE[0]}"
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while [ -h "${SOURCE}" ]; do
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local DIR="$( cd -P "$( dirname "${SOURCE}" )" && pwd )"
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SOURCE="$(readlink "${SOURCE}")"
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[[ $SOURCE != /* ]] && SOURCE="${DIR}/${SOURCE}"
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done
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__GIT_PROMPT_DIR="$( cd -P "$( dirname "${SOURCE}" )" && pwd )"
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fi
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}
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# gp_set_file_var ENVAR SOMEFILE
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#
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# Set ENVAR to the path to SOMEFILE, based on $HOME, $__GIT_PROMPT_DIR, and the
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# directory of the current script. The SOMEFILE can be prefixed with '.', or
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# not.
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#
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# Return 0 (success) if ENVAR not already defined, 1 (failure) otherwise.
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function gp_set_file_var() {
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local envar="$1"
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local file="$2"
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if eval "test -z \"\$$envar\"" ; then
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eval "$envar=" # set empty envar
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gp_maybe_set_envar_to_path "$envar" "$HOME/.$file" && return 0
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gp_maybe_set_envar_to_path "$envar" "$HOME/$file" && return 0
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gp_maybe_set_envar_to_path "$envar" "$HOME/lib/$file" && return 0
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git_prompt_dir
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gp_maybe_set_envar_to_path "$envar" "$__GIT_PROMPT_DIR/$file" && return 0
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gp_maybe_set_envar_to_path "$envar" "${0##*/}/$file" && return 0
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fi
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return 1
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}
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# gp_maybe_set_envar_to_path ENVAR FILEPATH
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#
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# return 0 (true) if FILEPATH is readable, set ENVAR to it
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# return 1 (false) if not
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function gp_maybe_set_envar_to_path(){
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local envar="$1"
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local file="$2"
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if [[ -r "$file" ]]; then
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eval "$envar=\"$file\""
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return 0
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fi
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return 1
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}
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function git_prompt_config()
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{
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# There are two files related to colors:
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#
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# prompt-colors.sh -- sets generic color names suitable for bash `PS1` prompt
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# git-prompt-colors.sh -- sets the GIT_PROMPT color scheme, using names from prompt-colors.sh
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if gp_set_file_var __PROMPT_COLORS_SH prompt-colors.sh ; then
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if [[ -n "${__PROMPT_COLORS_SH}" ]]; then
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source "${__PROMPT_COLORS_SH}" # outsource the color defs
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else
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echo 1>&2 "Cannot find prompt-colors.sh!"
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fi
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fi
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# source the user's ~/.git-prompt-colors.sh file, or the one that should be
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# sitting in the same directory as this script
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if gp_set_file_var __GIT_PROMPT_COLORS_FILE git-prompt-colors.sh ; then
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# if the envar is defined, source the file for custom colors
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if [[ -n "${__GIT_PROMPT_COLORS_FILE}" ]]; then
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source "${__GIT_PROMPT_COLORS_FILE}"
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else
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echo 1>&2 "Cannot find git-prompt-colors.sh!"
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fi
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fi
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# Do this only once to define PROMPT_START and PROMPT_END
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if [[ -z "$PROMPT_START" || -z "$PROMPT_END" ]]; then
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# Various variables you might want for your PS1 prompt instead
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local Time12a="\$(date +%H:%M)"
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# local Time12a="(\$(date +%H:%M:%S))"
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# local Time12a="(\@))"
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local PathShort="\w"
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if [[ -z "${GIT_PROMPT_START}" ]] ; then
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PROMPT_START="${Yellow}${PathShort}${ResetColor}"
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else
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PROMPT_START="${GIT_PROMPT_START}"
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fi
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if [[ -z "${GIT_PROMPT_END}" ]] ; then
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PROMPT_END=" \n${White}${Time12a}${ResetColor} $ "
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else
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PROMPT_END="${GIT_PROMPT_END}"
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fi
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fi
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EMPTY_PROMPT="${PROMPT_START}$($prompt_callback)${PROMPT_END}"
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# fetch remote revisions every other $GIT_PROMPT_FETCH_TIMEOUT (default 5) minutes
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GIT_PROMPT_FETCH_TIMEOUT=${1-5}
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if [[ -z "$__GIT_STATUS_CMD" ]] ; then # if GIT_STATUS_CMD not defined..
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git_prompt_dir
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local sfx file
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# look first for a '.sh' version, then use the python version
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for sfx in sh py ; do
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file="$__GIT_PROMPT_DIR/gitstatus.$sfx"
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if [[ -x "$file" ]]; then
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__GIT_STATUS_CMD="$file"
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break
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fi
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done
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fi
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}
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function setGitPrompt() {
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local EMPTY_PROMPT
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local __GIT_STATUS_CMD
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git_prompt_config
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local repo=`git rev-parse --show-toplevel 2> /dev/null`
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if [[ ! -e "${repo}" ]]; then
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PS1="${EMPTY_PROMPT}"
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return
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fi
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checkUpstream
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updatePrompt
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}
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function checkUpstream() {
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local GIT_PROMPT_FETCH_TIMEOUT
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git_prompt_config
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local FETCH_HEAD="${repo}/.git/FETCH_HEAD"
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# Fech repo if local is stale for more than $GIT_FETCH_TIMEOUT minutes
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if [[ ! -e "${FETCH_HEAD}" || -e `find "${FETCH_HEAD}" -mmin +${GIT_PROMPT_FETCH_TIMEOUT}` ]]
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then
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if [[ -n $(git remote show) ]]; then
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(
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async_run "git fetch --quiet"
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disown -h
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)
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fi
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fi
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}
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function updatePrompt() {
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local PROMPT_START
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local PROMPT_END
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local EMPTY_PROMPT
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local __GIT_STATUS_CMD
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git_prompt_config
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local -a GitStatus
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GitStatus=($("${__GIT_STATUS_CMD}" 2>/dev/null))
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local GIT_BRANCH=${GitStatus[0]}
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local GIT_REMOTE=${GitStatus[1]}
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if [[ "." == "$GIT_REMOTE" ]]; then
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unset GIT_REMOTE
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fi
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local GIT_STAGED=${GitStatus[2]}
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local GIT_CONFLICTS=${GitStatus[3]}
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local GIT_CHANGED=${GitStatus[4]}
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local GIT_UNTRACKED=${GitStatus[5]}
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local GIT_STASHED=${GitStatus[6]}
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local GIT_CLEAN=${GitStatus[7]}
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if [[ -n "${GitStatus}" ]]; then
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local STATUS=" ${GIT_PROMPT_PREFIX}${GIT_PROMPT_BRANCH}${GIT_BRANCH}${ResetColor}"
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# __add_status KIND VALEXPR INSERT
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# eg: __add_status 'STAGED' '-ne 0'
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__chk_gitvar_status() {
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local v
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if [[ "x$2" == "x-n" ]] ; then
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v="$2 \"\${GIT_$1}\""
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else
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v="\${GIT_$1} $2"
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fi
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if eval "test $v" ; then
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if [[ $# -lt 2 || "$3" != '-' ]]; then
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__add_status "\${GIT_PROMPT_$1}\${GIT_$1}\${ResetColor}"
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else
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__add_status "\${GIT_PROMPT_$1}\${ResetColor}"
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fi
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fi
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}
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__add_gitvar_status() {
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__add_status "\${GIT_PROMPT_$1}\${GIT_$1}\${ResetColor}"
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}
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# __add_status SOMETEXT
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__add_status() {
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eval "STATUS=\"${STATUS}$1\""
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}
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__chk_gitvar_status 'REMOTE' '-n'
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__add_status "$GIT_PROMPT_SEPARATOR"
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__chk_gitvar_status 'STAGED' '-ne 0'
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__chk_gitvar_status 'CONFLICTS' '-ne 0'
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__chk_gitvar_status 'CHANGED' '-ne 0'
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__chk_gitvar_status 'UNTRACKED' '-ne 0'
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__chk_gitvar_status 'STASHED' '-ne 0'
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__chk_gitvar_status 'CLEAN' '-eq 1' -
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__add_status "${ResetColor}$GIT_PROMPT_SUFFIX"
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PS1="${PROMPT_START}$($prompt_callback)${STATUS}${PROMPT_END}"
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if [[ -n "${VIRTUAL_ENV}" ]]; then
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PS1="${Blue}($(basename "${VIRTUAL_ENV}"))${ResetColor} ${PS1}"
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fi
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else
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PS1="${EMPTY_PROMPT}"
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fi
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}
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function prompt_callback_default {
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return
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}
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if [ "`type -t prompt_callback`" = 'function' ]; then
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prompt_callback="prompt_callback"
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else
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prompt_callback="prompt_callback_default"
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fi
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if [ -z "$OLD_GITPROMPT" ]; then
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OLD_GITPROMPT=$PS1
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fi
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if [ -z "$PROMPT_COMMAND" ]; then
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PROMPT_COMMAND=setGitPrompt
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else
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PROMPT_COMMAND=${PROMPT_COMMAND%% }; # remove trailing spaces
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PROMPT_COMMAND=${PROMPT_COMMAND%\;}; # remove trailing semi-colon
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PROMPT_COMMAND="$PROMPT_COMMAND;setGitPrompt"
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fi
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git_prompt_dir
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source $__GIT_PROMPT_DIR/git-prompt-help.sh
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