completion: split __git_ps1 into a separate script
bash-completion 1.90 shipped with support to load completions dynamically[1], which means the git completion script wouldn't be loaded until the user types 'git <tab>'--this creates a problem to people using __git_ps1(); that function won't be available when the shell is first created. For now distributions have workarounded this issue by moving the git completion to the "compatdir"[2]; this of course is not ideal. The solution, proposed by Kerrick Staley[3], is to split the git script in two; the part that deals with __git_ps1() in one (i.e. git-prompt.sh), and everything else in another (i.e. git-completion.bash). Another benefit of this is that zsh user that are not interested in the bash completion can use it for their prompts, which has been tried before[4]. The only slight issue is that __gitdir() would be duplicated, but this is probably not a big deal. So let's go ahead and move __git_ps1() to a new file. While at this, I took the liberty to reformat the help text in the new file. [1] http://anonscm.debian.org/gitweb/?p=bash-completion/bash-completion.git;a=commitdiff;h=99c4f7f25f50a7cb2fce86055bddfe389effa559 [2] http://projects.archlinux.org/svntogit/packages.git/commit/trunk?h=packages/git&id=974380fabb8f9f412990b17063bf578d98c44a82 [3] http://mid.gmane.org/CANaWP3w9KDu57aHquRRYt8td_haSWTBKs7zUHy-xu0B61gmr9A@mail.gmail.com [4] http://mid.gmane.org/1303824288-15591-1-git-send-email-mstormo@gmail.com Cc: Kerrick Staley <mail@kerrickstaley.com> Cc: Marius Storm-Olsen <mstormo@gmail.com> Cc: Ville Skyttä <ville.skytta@iki.fi> Cc: Dan McGee <dan@archlinux.org> Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Felipe Contreras
Junio C Hamano
parent
1098ff5a21
commit
af31a456b4
@ -20,46 +20,8 @@
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# 1) Copy this file to somewhere (e.g. ~/.git-completion.sh).
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# 2) Add the following line to your .bashrc/.zshrc:
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# source ~/.git-completion.sh
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#
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# 3) Consider changing your PS1 to also show the current branch:
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# Bash: PS1='[\u@\h \W$(__git_ps1 " (%s)")]\$ '
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# ZSH: PS1='[%n@%m %c$(__git_ps1 " (%s)")]\$ '
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#
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# The argument to __git_ps1 will be displayed only if you
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# are currently in a git repository. The %s token will be
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# the name of the current branch.
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#
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# In addition, if you set GIT_PS1_SHOWDIRTYSTATE to a nonempty
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# value, unstaged (*) and staged (+) changes will be shown next
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# to the branch name. You can configure this per-repository
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# with the bash.showDirtyState variable, which defaults to true
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# once GIT_PS1_SHOWDIRTYSTATE is enabled.
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#
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# You can also see if currently something is stashed, by setting
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# GIT_PS1_SHOWSTASHSTATE to a nonempty value. If something is stashed,
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# then a '$' will be shown next to the branch name.
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#
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# If you would like to see if there're untracked files, then you can
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# set GIT_PS1_SHOWUNTRACKEDFILES to a nonempty value. If there're
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# untracked files, then a '%' will be shown next to the branch name.
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#
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# If you would like to see the difference between HEAD and its
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# upstream, set GIT_PS1_SHOWUPSTREAM="auto". A "<" indicates
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# you are behind, ">" indicates you are ahead, and "<>"
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# indicates you have diverged. You can further control
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# behaviour by setting GIT_PS1_SHOWUPSTREAM to a space-separated
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# list of values:
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# verbose show number of commits ahead/behind (+/-) upstream
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# legacy don't use the '--count' option available in recent
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# versions of git-rev-list
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# git always compare HEAD to @{upstream}
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# svn always compare HEAD to your SVN upstream
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# By default, __git_ps1 will compare HEAD to your SVN upstream
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# if it can find one, or @{upstream} otherwise. Once you have
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# set GIT_PS1_SHOWUPSTREAM, you can override it on a
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# per-repository basis by setting the bash.showUpstream config
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# variable.
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#
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# 3) Consider changing your PS1 to also show the current branch,
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# see git-prompt.sh for details.
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if [[ -n ${ZSH_VERSION-} ]]; then
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autoload -U +X bashcompinit && bashcompinit
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@ -89,221 +51,6 @@ __gitdir ()
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fi
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}
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# stores the divergence from upstream in $p
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# used by GIT_PS1_SHOWUPSTREAM
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__git_ps1_show_upstream ()
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{
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local key value
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local svn_remote svn_url_pattern count n
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local upstream=git legacy="" verbose=""
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svn_remote=()
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# get some config options from git-config
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local output="$(git config -z --get-regexp '^(svn-remote\..*\.url|bash\.showupstream)$' 2>/dev/null | tr '\0\n' '\n ')"
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while read -r key value; do
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case "$key" in
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bash.showupstream)
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GIT_PS1_SHOWUPSTREAM="$value"
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if [[ -z "${GIT_PS1_SHOWUPSTREAM}" ]]; then
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p=""
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return
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fi
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;;
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svn-remote.*.url)
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svn_remote[ $((${#svn_remote[@]} + 1)) ]="$value"
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svn_url_pattern+="\\|$value"
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upstream=svn+git # default upstream is SVN if available, else git
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;;
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esac
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done <<< "$output"
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# parse configuration values
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for option in ${GIT_PS1_SHOWUPSTREAM}; do
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case "$option" in
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git|svn) upstream="$option" ;;
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verbose) verbose=1 ;;
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legacy) legacy=1 ;;
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esac
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done
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# Find our upstream
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case "$upstream" in
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git) upstream="@{upstream}" ;;
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svn*)
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# get the upstream from the "git-svn-id: ..." in a commit message
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# (git-svn uses essentially the same procedure internally)
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local svn_upstream=($(git log --first-parent -1 \
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--grep="^git-svn-id: \(${svn_url_pattern#??}\)" 2>/dev/null))
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if [[ 0 -ne ${#svn_upstream[@]} ]]; then
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svn_upstream=${svn_upstream[ ${#svn_upstream[@]} - 2 ]}
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svn_upstream=${svn_upstream%@*}
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local n_stop="${#svn_remote[@]}"
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for ((n=1; n <= n_stop; n++)); do
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svn_upstream=${svn_upstream#${svn_remote[$n]}}
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done
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if [[ -z "$svn_upstream" ]]; then
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# default branch name for checkouts with no layout:
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upstream=${GIT_SVN_ID:-git-svn}
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else
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upstream=${svn_upstream#/}
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fi
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elif [[ "svn+git" = "$upstream" ]]; then
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upstream="@{upstream}"
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fi
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;;
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esac
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# Find how many commits we are ahead/behind our upstream
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if [[ -z "$legacy" ]]; then
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count="$(git rev-list --count --left-right \
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"$upstream"...HEAD 2>/dev/null)"
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else
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# produce equivalent output to --count for older versions of git
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local commits
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if commits="$(git rev-list --left-right "$upstream"...HEAD 2>/dev/null)"
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then
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local commit behind=0 ahead=0
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for commit in $commits
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do
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case "$commit" in
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"<"*) ((behind++)) ;;
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*) ((ahead++)) ;;
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esac
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done
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count="$behind $ahead"
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else
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count=""
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fi
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fi
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# calculate the result
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if [[ -z "$verbose" ]]; then
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case "$count" in
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"") # no upstream
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p="" ;;
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"0 0") # equal to upstream
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p="=" ;;
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"0 "*) # ahead of upstream
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p=">" ;;
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*" 0") # behind upstream
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p="<" ;;
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*) # diverged from upstream
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p="<>" ;;
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esac
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else
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case "$count" in
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"") # no upstream
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p="" ;;
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"0 0") # equal to upstream
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p=" u=" ;;
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"0 "*) # ahead of upstream
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p=" u+${count#0 }" ;;
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*" 0") # behind upstream
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p=" u-${count% 0}" ;;
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*) # diverged from upstream
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p=" u+${count#* }-${count% *}" ;;
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esac
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fi
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}
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# __git_ps1 accepts 0 or 1 arguments (i.e., format string)
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# returns text to add to bash PS1 prompt (includes branch name)
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__git_ps1 ()
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{
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local g="$(__gitdir)"
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if [ -n "$g" ]; then
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local r=""
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local b=""
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if [ -f "$g/rebase-merge/interactive" ]; then
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r="|REBASE-i"
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b="$(cat "$g/rebase-merge/head-name")"
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elif [ -d "$g/rebase-merge" ]; then
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r="|REBASE-m"
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b="$(cat "$g/rebase-merge/head-name")"
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else
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if [ -d "$g/rebase-apply" ]; then
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if [ -f "$g/rebase-apply/rebasing" ]; then
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r="|REBASE"
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elif [ -f "$g/rebase-apply/applying" ]; then
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r="|AM"
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else
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r="|AM/REBASE"
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fi
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elif [ -f "$g/MERGE_HEAD" ]; then
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r="|MERGING"
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elif [ -f "$g/CHERRY_PICK_HEAD" ]; then
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r="|CHERRY-PICKING"
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elif [ -f "$g/BISECT_LOG" ]; then
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r="|BISECTING"
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fi
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b="$(git symbolic-ref HEAD 2>/dev/null)" || {
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b="$(
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case "${GIT_PS1_DESCRIBE_STYLE-}" in
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(contains)
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git describe --contains HEAD ;;
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(branch)
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git describe --contains --all HEAD ;;
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(describe)
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git describe HEAD ;;
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(* | default)
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git describe --tags --exact-match HEAD ;;
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esac 2>/dev/null)" ||
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b="$(cut -c1-7 "$g/HEAD" 2>/dev/null)..." ||
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b="unknown"
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b="($b)"
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}
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fi
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local w=""
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local i=""
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local s=""
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local u=""
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local c=""
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local p=""
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if [ "true" = "$(git rev-parse --is-inside-git-dir 2>/dev/null)" ]; then
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if [ "true" = "$(git rev-parse --is-bare-repository 2>/dev/null)" ]; then
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c="BARE:"
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else
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b="GIT_DIR!"
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fi
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elif [ "true" = "$(git rev-parse --is-inside-work-tree 2>/dev/null)" ]; then
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if [ -n "${GIT_PS1_SHOWDIRTYSTATE-}" ]; then
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if [ "$(git config --bool bash.showDirtyState)" != "false" ]; then
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git diff --no-ext-diff --quiet --exit-code || w="*"
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if git rev-parse --quiet --verify HEAD >/dev/null; then
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git diff-index --cached --quiet HEAD -- || i="+"
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else
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i="#"
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fi
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fi
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fi
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if [ -n "${GIT_PS1_SHOWSTASHSTATE-}" ]; then
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git rev-parse --verify refs/stash >/dev/null 2>&1 && s="$"
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fi
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if [ -n "${GIT_PS1_SHOWUNTRACKEDFILES-}" ]; then
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if [ -n "$(git ls-files --others --exclude-standard)" ]; then
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u="%"
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fi
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fi
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if [ -n "${GIT_PS1_SHOWUPSTREAM-}" ]; then
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__git_ps1_show_upstream
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fi
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fi
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local f="$w$i$s$u"
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printf -- "${1:- (%s)}" "$c${b##refs/heads/}${f:+ $f}$r$p"
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fi
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}
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__gitcomp_1 ()
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{
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local c IFS=$' \t\n'
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287
contrib/completion/git-prompt.sh
Normal file
287
contrib/completion/git-prompt.sh
Normal file
@ -0,0 +1,287 @@
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# bash/zsh git prompt support
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#
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# Copyright (C) 2006,2007 Shawn O. Pearce <spearce@spearce.org>
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# Distributed under the GNU General Public License, version 2.0.
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#
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# This script allows you to see the current branch in your prompt.
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#
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# To enable:
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#
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# 1) Copy this file to somewhere (e.g. ~/.git-prompt.sh).
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# 2) Add the following line to your .bashrc/.zshrc:
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# source ~/.git-prompt.sh
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# 3) Change your PS1 to also show the current branch:
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# Bash: PS1='[\u@\h \W$(__git_ps1 " (%s)")]\$ '
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# ZSH: PS1='[%n@%m %c$(__git_ps1 " (%s)")]\$ '
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#
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# The argument to __git_ps1 will be displayed only if you are currently
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# in a git repository. The %s token will be the name of the current
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# branch.
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#
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# In addition, if you set GIT_PS1_SHOWDIRTYSTATE to a nonempty value,
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# unstaged (*) and staged (+) changes will be shown next to the branch
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# name. You can configure this per-repository with the
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# bash.showDirtyState variable, which defaults to true once
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# GIT_PS1_SHOWDIRTYSTATE is enabled.
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#
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# You can also see if currently something is stashed, by setting
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# GIT_PS1_SHOWSTASHSTATE to a nonempty value. If something is stashed,
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# then a '$' will be shown next to the branch name.
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#
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# If you would like to see if there're untracked files, then you can set
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# GIT_PS1_SHOWUNTRACKEDFILES to a nonempty value. If there're untracked
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# files, then a '%' will be shown next to the branch name.
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#
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# If you would like to see the difference between HEAD and its upstream,
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# set GIT_PS1_SHOWUPSTREAM="auto". A "<" indicates you are behind, ">"
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# indicates you are ahead, and "<>" indicates you have diverged. You
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# can further control behaviour by setting GIT_PS1_SHOWUPSTREAM to a
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# space-separated list of values:
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#
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# verbose show number of commits ahead/behind (+/-) upstream
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# legacy don't use the '--count' option available in recent
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# versions of git-rev-list
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# git always compare HEAD to @{upstream}
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# svn always compare HEAD to your SVN upstream
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#
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# By default, __git_ps1 will compare HEAD to your SVN upstream if it can
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# find one, or @{upstream} otherwise. Once you have set
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# GIT_PS1_SHOWUPSTREAM, you can override it on a per-repository basis by
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# setting the bash.showUpstream config variable.
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# __gitdir accepts 0 or 1 arguments (i.e., location)
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# returns location of .git repo
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__gitdir ()
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{
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if [ -z "${1-}" ]; then
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if [ -n "${__git_dir-}" ]; then
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echo "$__git_dir"
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elif [ -n "${GIT_DIR-}" ]; then
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test -d "${GIT_DIR-}" || return 1
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echo "$GIT_DIR"
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elif [ -d .git ]; then
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echo .git
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else
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git rev-parse --git-dir 2>/dev/null
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fi
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elif [ -d "$1/.git" ]; then
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echo "$1/.git"
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else
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echo "$1"
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fi
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}
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# stores the divergence from upstream in $p
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# used by GIT_PS1_SHOWUPSTREAM
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__git_ps1_show_upstream ()
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{
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local key value
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local svn_remote svn_url_pattern count n
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local upstream=git legacy="" verbose=""
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svn_remote=()
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# get some config options from git-config
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local output="$(git config -z --get-regexp '^(svn-remote\..*\.url|bash\.showupstream)$' 2>/dev/null | tr '\0\n' '\n ')"
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while read -r key value; do
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case "$key" in
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bash.showupstream)
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GIT_PS1_SHOWUPSTREAM="$value"
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if [[ -z "${GIT_PS1_SHOWUPSTREAM}" ]]; then
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p=""
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return
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fi
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;;
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svn-remote.*.url)
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svn_remote[ $((${#svn_remote[@]} + 1)) ]="$value"
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svn_url_pattern+="\\|$value"
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upstream=svn+git # default upstream is SVN if available, else git
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;;
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esac
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done <<< "$output"
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# parse configuration values
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for option in ${GIT_PS1_SHOWUPSTREAM}; do
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case "$option" in
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git|svn) upstream="$option" ;;
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verbose) verbose=1 ;;
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legacy) legacy=1 ;;
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esac
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done
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# Find our upstream
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case "$upstream" in
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git) upstream="@{upstream}" ;;
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svn*)
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# get the upstream from the "git-svn-id: ..." in a commit message
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# (git-svn uses essentially the same procedure internally)
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local svn_upstream=($(git log --first-parent -1 \
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--grep="^git-svn-id: \(${svn_url_pattern#??}\)" 2>/dev/null))
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if [[ 0 -ne ${#svn_upstream[@]} ]]; then
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svn_upstream=${svn_upstream[ ${#svn_upstream[@]} - 2 ]}
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svn_upstream=${svn_upstream%@*}
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local n_stop="${#svn_remote[@]}"
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for ((n=1; n <= n_stop; n++)); do
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svn_upstream=${svn_upstream#${svn_remote[$n]}}
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done
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if [[ -z "$svn_upstream" ]]; then
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# default branch name for checkouts with no layout:
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upstream=${GIT_SVN_ID:-git-svn}
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else
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upstream=${svn_upstream#/}
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fi
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elif [[ "svn+git" = "$upstream" ]]; then
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upstream="@{upstream}"
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fi
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;;
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esac
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# Find how many commits we are ahead/behind our upstream
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if [[ -z "$legacy" ]]; then
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count="$(git rev-list --count --left-right \
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"$upstream"...HEAD 2>/dev/null)"
|
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else
|
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# produce equivalent output to --count for older versions of git
|
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local commits
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if commits="$(git rev-list --left-right "$upstream"...HEAD 2>/dev/null)"
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then
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local commit behind=0 ahead=0
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||||
for commit in $commits
|
||||
do
|
||||
case "$commit" in
|
||||
"<"*) ((behind++)) ;;
|
||||
*) ((ahead++)) ;;
|
||||
esac
|
||||
done
|
||||
count="$behind $ahead"
|
||||
else
|
||||
count=""
|
||||
fi
|
||||
fi
|
||||
|
||||
# calculate the result
|
||||
if [[ -z "$verbose" ]]; then
|
||||
case "$count" in
|
||||
"") # no upstream
|
||||
p="" ;;
|
||||
"0 0") # equal to upstream
|
||||
p="=" ;;
|
||||
"0 "*) # ahead of upstream
|
||||
p=">" ;;
|
||||
*" 0") # behind upstream
|
||||
p="<" ;;
|
||||
*) # diverged from upstream
|
||||
p="<>" ;;
|
||||
esac
|
||||
else
|
||||
case "$count" in
|
||||
"") # no upstream
|
||||
p="" ;;
|
||||
"0 0") # equal to upstream
|
||||
p=" u=" ;;
|
||||
"0 "*) # ahead of upstream
|
||||
p=" u+${count#0 }" ;;
|
||||
*" 0") # behind upstream
|
||||
p=" u-${count% 0}" ;;
|
||||
*) # diverged from upstream
|
||||
p=" u+${count#* }-${count% *}" ;;
|
||||
esac
|
||||
fi
|
||||
|
||||
}
|
||||
|
||||
|
||||
# __git_ps1 accepts 0 or 1 arguments (i.e., format string)
|
||||
# returns text to add to bash PS1 prompt (includes branch name)
|
||||
__git_ps1 ()
|
||||
{
|
||||
local g="$(__gitdir)"
|
||||
if [ -n "$g" ]; then
|
||||
local r=""
|
||||
local b=""
|
||||
if [ -f "$g/rebase-merge/interactive" ]; then
|
||||
r="|REBASE-i"
|
||||
b="$(cat "$g/rebase-merge/head-name")"
|
||||
elif [ -d "$g/rebase-merge" ]; then
|
||||
r="|REBASE-m"
|
||||
b="$(cat "$g/rebase-merge/head-name")"
|
||||
else
|
||||
if [ -d "$g/rebase-apply" ]; then
|
||||
if [ -f "$g/rebase-apply/rebasing" ]; then
|
||||
r="|REBASE"
|
||||
elif [ -f "$g/rebase-apply/applying" ]; then
|
||||
r="|AM"
|
||||
else
|
||||
r="|AM/REBASE"
|
||||
fi
|
||||
elif [ -f "$g/MERGE_HEAD" ]; then
|
||||
r="|MERGING"
|
||||
elif [ -f "$g/CHERRY_PICK_HEAD" ]; then
|
||||
r="|CHERRY-PICKING"
|
||||
elif [ -f "$g/BISECT_LOG" ]; then
|
||||
r="|BISECTING"
|
||||
fi
|
||||
|
||||
b="$(git symbolic-ref HEAD 2>/dev/null)" || {
|
||||
|
||||
b="$(
|
||||
case "${GIT_PS1_DESCRIBE_STYLE-}" in
|
||||
(contains)
|
||||
git describe --contains HEAD ;;
|
||||
(branch)
|
||||
git describe --contains --all HEAD ;;
|
||||
(describe)
|
||||
git describe HEAD ;;
|
||||
(* | default)
|
||||
git describe --tags --exact-match HEAD ;;
|
||||
esac 2>/dev/null)" ||
|
||||
|
||||
b="$(cut -c1-7 "$g/HEAD" 2>/dev/null)..." ||
|
||||
b="unknown"
|
||||
b="($b)"
|
||||
}
|
||||
fi
|
||||
|
||||
local w=""
|
||||
local i=""
|
||||
local s=""
|
||||
local u=""
|
||||
local c=""
|
||||
local p=""
|
||||
|
||||
if [ "true" = "$(git rev-parse --is-inside-git-dir 2>/dev/null)" ]; then
|
||||
if [ "true" = "$(git rev-parse --is-bare-repository 2>/dev/null)" ]; then
|
||||
c="BARE:"
|
||||
else
|
||||
b="GIT_DIR!"
|
||||
fi
|
||||
elif [ "true" = "$(git rev-parse --is-inside-work-tree 2>/dev/null)" ]; then
|
||||
if [ -n "${GIT_PS1_SHOWDIRTYSTATE-}" ]; then
|
||||
if [ "$(git config --bool bash.showDirtyState)" != "false" ]; then
|
||||
git diff --no-ext-diff --quiet --exit-code || w="*"
|
||||
if git rev-parse --quiet --verify HEAD >/dev/null; then
|
||||
git diff-index --cached --quiet HEAD -- || i="+"
|
||||
else
|
||||
i="#"
|
||||
fi
|
||||
fi
|
||||
fi
|
||||
if [ -n "${GIT_PS1_SHOWSTASHSTATE-}" ]; then
|
||||
git rev-parse --verify refs/stash >/dev/null 2>&1 && s="$"
|
||||
fi
|
||||
|
||||
if [ -n "${GIT_PS1_SHOWUNTRACKEDFILES-}" ]; then
|
||||
if [ -n "$(git ls-files --others --exclude-standard)" ]; then
|
||||
u="%"
|
||||
fi
|
||||
fi
|
||||
|
||||
if [ -n "${GIT_PS1_SHOWUPSTREAM-}" ]; then
|
||||
__git_ps1_show_upstream
|
||||
fi
|
||||
fi
|
||||
|
||||
local f="$w$i$s$u"
|
||||
printf -- "${1:- (%s)}" "$c${b##refs/heads/}${f:+ $f}$r$p"
|
||||
fi
|
||||
}
|
||||
@ -7,7 +7,7 @@ test_description='test git-specific bash prompt functions'
|
||||
|
||||
. ./lib-bash.sh
|
||||
|
||||
. "$GIT_BUILD_DIR/contrib/completion/git-completion.bash"
|
||||
. "$GIT_BUILD_DIR/contrib/completion/git-prompt.sh"
|
||||
|
||||
actual="$TRASH_DIRECTORY/actual"
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user