Add git status information to prompt.
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1 changed files with 119 additions and 5 deletions
124
.bashrc
124
.bashrc
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@ -1,5 +1,110 @@
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#!/bin/bash - not strictly necessary, but helps nano with syntax highlighting.
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__prompt_git_status() {
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# Generate a git branch/status prompt.
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# Environment variables:
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# GIT_PROMPT_SHOW_TYPE=1 - Show type of repository (Bare, Shallow).
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# GIT_PROMPT_SHOW_IGNORED=1 - Show a ! if the directory is ignored.
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# GIT_PROMPT_SHOW_UNSTAGED=1 - Show a * if there are unstaged changes (superceeded by above).
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# GIT_PROMPT_SHOW_UNTRACKED=1 - Show a ? if there are untracked files in the working directory (superceeded by above).
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# GIT_PROMPT_SHOW_STASH=1 - Show a & if there is a stash in this repository (superceeded by above).
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# GIT_PROMPT_SHOW_UPSTREAM=1 - Show status of this repository compaired to upstream:
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# ?? - No upstream set.
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# == - Working tree is equal to upstream.
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# <> - Divergent from upstream.
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# >> or >x - Working tree is ahead of upstream (x = commits ahead when used with next option).
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# << or <x - Working tree is behind upstream (x = commits behind when used with next option).
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# GIT_PROMPT_SHOW_UPSTREAM_EXTENDED=1 - In addition to upstream status, show the number of commits difference (inplies above).
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local COUNT GIT_PROMPT GIT_REPO_INFO RET="$?"
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# Bail out if there's no format argument given.
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(( $# != 1 )) && return "$RET"
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# Get some repository information.
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# shellcheck disable=SC2207
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GIT_REPO_INFO=( $(git rev-parse --is-bare-repository --is-shallow-repository --is-inside-git-dir --is-inside-work-tree --short HEAD 2>/dev/null) )
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ERR="$?"
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# Do nothing if there's an error.
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(( ERR >= 1 )) || { (( ERR == 128 )) && (( ${#GIT_REPO_INFO[@]} != 3 )); } && return "$RET"
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# Generate the prompt.
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if [[ "${GIT_REPO_INFO[2]}" == "true" ]]; then
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# If in the git directory, use a special branch marker.
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GIT_PROMPT+="!GIT_DIR!"
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elif [[ "${GIT_REPO_INFO[3]}" == "true" ]]; then
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# If in the working directory, generate the prompt.
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# Add status markers.
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[[ -n "$GIT_PROMPT_SHOW_TYPE" ]] && {
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if [[ "${GIT_REPO_INFO[0]}" == "true" ]]; then
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GIT_PROMPT+="B:"
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elif [[ "${GIT_REPO_INFO[1]}" == "true" ]]; then
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GIT_PROMPT+="S:"
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fi
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}
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# Add the branch.
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GIT_PROMPT+="$(git describe --contains --all HEAD)"
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# Add a marker if directory is ignored, there's untracked files or a stash.
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if [[ -n "$GIT_PROMPT_SHOW_IGNORED" ]] && git check-ignore -q "${PWD#"$(git rev-parse --show-toplevel)/"}"; then
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GIT_PROMPT+=" !"
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elif [[ -n "$GIT_PROMPT_SHOW_UNSTAGED" ]] && git ls-files --modified --exclude-standard --directory --error-unmatch -- ':/*' >/dev/null 2>&1; then
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GIT_PROMPT+=" *"
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elif [[ -n "$GIT_PROMPT_SHOW_UNTRACKED" ]] && git ls-files --others --exclude-standard --directory --error-unmatch -- ':/*' >/dev/null 2>&1; then
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GIT_PROMPT+=" ?"
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elif [[ -n "$GIT_PROMPT_SHOW_STASH" ]] && git rev-parse --verify --quiet refs/stash >/dev/null; then
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GIT_PROMPT+=" &"
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fi
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# Get upstream status.
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[[ -n "$GIT_PROMPT_SHOW_UPSTREAM" ]] || [[ -n "$GIT_PROMPT_SHOW_UPSTREAM_EXTENDED" ]] && {
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COUNT="$(git rev-list --count --left-right '@{upstream}'...HEAD 2>/dev/null | tr '[:blank:]' ' ')"
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case "$COUNT" in
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"")
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# No upstream.
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GIT_PROMPT+=" ??"
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;;
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"0 0")
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# Equal to upstream.
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GIT_PROMPT+=" =="
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;;
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"0 "*)
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# Ahead of upstream.
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GIT_PROMPT+=" >"
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if [[ -n "$GIT_PROMPT_SHOW_UPSTREAM_EXTENDED" ]]; then
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# Show the number of the difference.
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GIT_PROMPT+="${COUNT#0 }"
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else
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GIT_PROMPT+=">"
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fi
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;;
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*" 0")
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# Behind upstream.
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GIT_PROMPT+=" <"
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if [[ -n "$GIT_PROMPT_SHOW_UPSTREAM_EXTENDED" ]]; then
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# Show the number of the difference.
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GIT_PROMPT+="${COUNT% 0}"
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else
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GIT_PROMPT+="<"
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fi
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;;
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*)
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# Divergent from upstream.
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GIT_PROMPT+=" <>"
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;;
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esac
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}
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fi
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# Output the prompt.
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# shellcheck disable=SC2059
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printf -- "$1" "$GIT_PROMPT"
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# Return the original error code.
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return "$RET"
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}
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__find_ssh_agent_sock() {
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# Find an *active* ssh agent socket.
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# Returns: 0 = Found an active socket.
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@ -248,6 +353,18 @@ else
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COLOUR=5 # Purple
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fi
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# The commands to execute before the prompt is displayed.
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PROMPT_COMMAND="__ssh_agent_prompt_command"
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# Git prompt options.
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GIT_PROMPT_SHOW_TYPE=1
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GIT_PROMPT_SHOW_IGNORED=1
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GIT_PROMPT_SHOW_UNSTAGED=1
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GIT_PROMPT_SHOW_UNTRACKED=1
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GIT_PROMPT_SHOW_STASH=1
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GIT_PROMPT_SHOW_UPSTREAM=1
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GIT_PROMPT_SHOW_UPSTREAM_EXTENDED=1
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# Version specific set up.
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if (( BASH_VERSINFO[0] >= 4 )); then
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# Add to the shopts.
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@ -256,12 +373,12 @@ if (( BASH_VERSINFO[0] >= 4 )); then
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# Trim the path in the prompt.
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PROMPT_DIRTRIM=2
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# Coloured username + host + directory:
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PS1="[\[$(tput bold)$(tput setaf "$COLOUR")\]\u\[$(tput sgr0)\]@\[$(tput bold)$(tput setaf 3)\]\h\[$(tput sgr0)\]] \[$(tput bold)$(tput setaf 4)\]\w\[$(tput sgr0)\] ->"
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PS1='[\[$(tput bold)$(tput setaf "$COLOUR")\]\u\[$(tput sgr0)\]@\[$(tput bold)$(tput setaf 3)\]\h\[$(tput sgr0)\]] \[$(tput bold)$(tput setaf 4)\]\w\[$(tput sgr0)\]$(__prompt_git_status "\[\033[0;35;40m\] (%s)\[\033[0;37;40m\]") ->'
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else
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# Set the prompts.
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# Coloured username + host + directory:
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# shellcheck disable=SC2154
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PS1="[\[$(tput bold)$(tput setaf "$COLOUR")\]\u\[$(tput sgr0)\]@\[$(tput bold)$(tput setaf 3)\]\h\[$(tput sgr0)\]] \[$(tput bold)$(tput setaf 4)\]\$(echo \"\${PWD/#\$HOME/~}\" | awk -F/ '{if (NF>3) {printf \".../\" \$(NF-1) \"/\" \$NF} else {printf \$0}}')\[$(tput sgr0)\] ->"
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PS1="[\[$(tput bold)$(tput setaf "$COLOUR")\]\u\[$(tput sgr0)\]@\[$(tput bold)$(tput setaf 3)\]\h\[$(tput sgr0)\]] \[$(tput bold)$(tput setaf 4)\]\$(echo \"\${PWD/#\$HOME/~}\" | awk -F/ '{if (NF>3) {printf \".../\" \$(NF-1) \"/\" \$NF} else {printf \$0}}')\[$(tput sgr0)\]$(__prompt_git_status "\[\033[0;35;40m\] (%s)\[\033[0;37;40m\]") ->"
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fi
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unset COLOUR
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@ -269,9 +386,6 @@ unset COLOUR
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# shellcheck disable=SC2155
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export PS4="+(\[\e[1;33;40m\]\$?\[$(tput sgr0)\]) \[$(tput bold)$(tput setaf 4)\]\${BASH_SOURCE##*/}\[$(tput sgr0)\]\${FUNCNAME[0]:+(\[$(tput bold)$(tput setaf 2)\]\${FUNCNAME[0]}\[$(tput sgr0)\])}:\[$(tput bold)$(tput setaf 1)\]\$LINENO\[$(tput sgr0)\]: "
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# The commands to execute before the prompt is displayed.
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PROMPT_COMMAND="__ssh_agent_prompt_command"
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# Common aliases.
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hash bc >/dev/null 2>&1 && alias bc='bc -lq'
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hash diff >/dev/null 2>&1 && alias diff='diff --color=auto -u'
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