diff options
Diffstat (limited to 'contrib/completion/git-prompt.sh')
| -rw-r--r-- | contrib/completion/git-prompt.sh | 114 |
1 files changed, 94 insertions, 20 deletions
diff --git a/contrib/completion/git-prompt.sh b/contrib/completion/git-prompt.sh index 7b732d2..214e859 100644 --- a/contrib/completion/git-prompt.sh +++ b/contrib/completion/git-prompt.sh @@ -84,6 +84,11 @@ # GIT_PS1_SHOWCOLORHINTS to a nonempty value. The colors are based on # the colored output of "git status -sb" and are available only when # using __git_ps1 for PROMPT_COMMAND or precmd. +# +# If you would like __git_ps1 to do nothing in the case when the current +# directory is set up to be ignored by git, then set +# GIT_PS1_HIDE_IF_PWD_IGNORED to a nonempty value. Override this on the +# repository level by setting bash.hideIfPwdIgnored to "false". # check whether printf supports -v __git_printf_supports_v= @@ -207,7 +212,16 @@ __git_ps1_show_upstream () p=" u+${count#* }-${count% *}" ;; esac if [[ -n "$count" && -n "$name" ]]; then - p="$p $(git rev-parse --abbrev-ref "$upstream" 2>/dev/null)" + __git_ps1_upstream_name=$(git rev-parse \ + --abbrev-ref "$upstream" 2>/dev/null) + if [ $pcmode = yes ] && [ $ps1_expanded = yes ]; then + p="$p \${__git_ps1_upstream_name}" + else + p="$p ${__git_ps1_upstream_name}" + # not needed anymore; keep user's + # environment clean + unset __git_ps1_upstream_name + fi fi fi @@ -259,6 +273,13 @@ __git_ps1_colorize_gitstring () r="$c_clear$r" } +__git_eread () +{ + local f="$1" + shift + test -r "$f" && read "$@" <"$f" +} + # __git_ps1 accepts 0 or 1 arguments (i.e., format string) # when called from PS1 using command substitution # in this mode it prints text to add to bash PS1 prompt (includes branch name) @@ -272,6 +293,8 @@ __git_ps1_colorize_gitstring () # In this mode you can request colored hints using GIT_PS1_SHOWCOLORHINTS=true __git_ps1 () { + # preserve exit status + local exit=$? local pcmode=no local detached=no local ps1pc_start='\u@\h:\w ' @@ -283,13 +306,54 @@ __git_ps1 () ps1pc_start="$1" ps1pc_end="$2" printf_format="${3:-$printf_format}" + # set PS1 to a plain prompt so that we can + # simply return early if the prompt should not + # be decorated + PS1="$ps1pc_start$ps1pc_end" ;; 0|1) printf_format="${1:-$printf_format}" ;; - *) return + *) return $exit ;; esac + # ps1_expanded: This variable is set to 'yes' if the shell + # subjects the value of PS1 to parameter expansion: + # + # * bash does unless the promptvars option is disabled + # * zsh does not unless the PROMPT_SUBST option is set + # * POSIX shells always do + # + # If the shell would expand the contents of PS1 when drawing + # the prompt, a raw ref name must not be included in PS1. + # This protects the user from arbitrary code execution via + # specially crafted ref names. For example, a ref named + # 'refs/heads/$(IFS=_;cmd=sudo_rm_-rf_/;$cmd)' might cause the + # shell to execute 'sudo rm -rf /' when the prompt is drawn. + # + # Instead, the ref name should be placed in a separate global + # variable (in the __git_ps1_* namespace to avoid colliding + # with the user's environment) and that variable should be + # referenced from PS1. For example: + # + # __git_ps1_foo=$(do_something_to_get_ref_name) + # PS1="...stuff...\${__git_ps1_foo}...stuff..." + # + # If the shell does not expand the contents of PS1, the raw + # ref name must be included in PS1. + # + # The value of this variable is only relevant when in pcmode. + # + # Assume that the shell follows the POSIX specification and + # expands PS1 unless determined otherwise. (This is more + # likely to be correct if the user has a non-bash, non-zsh + # shell and safer than the alternative if the assumption is + # incorrect.) + # + local ps1_expanded=yes + [ -z "$ZSH_VERSION" ] || [[ -o PROMPT_SUBST ]] || ps1_expanded=no + [ -z "$BASH_VERSION" ] || shopt -q promptvars || ps1_expanded=no + local repo_info rev_parse_exit_code repo_info="$(git rev-parse --git-dir --is-inside-git-dir \ --is-bare-repository --is-inside-work-tree \ @@ -297,11 +361,7 @@ __git_ps1 () rev_parse_exit_code="$?" if [ -z "$repo_info" ]; then - if [ $pcmode = yes ]; then - #In PC mode PS1 always needs to be set - PS1="$ps1pc_start$ps1pc_end" - fi - return + return $exit fi local short_sha @@ -316,14 +376,22 @@ __git_ps1 () local inside_gitdir="${repo_info##*$'\n'}" local g="${repo_info%$'\n'*}" + if [ "true" = "$inside_worktree" ] && + [ -n "${GIT_PS1_HIDE_IF_PWD_IGNORED-}" ] && + [ "$(git config --bool bash.hideIfPwdIgnored)" != "false" ] && + git check-ignore -q . + then + return $exit + fi + local r="" local b="" local step="" local total="" if [ -d "$g/rebase-merge" ]; then - read b 2>/dev/null <"$g/rebase-merge/head-name" - read step 2>/dev/null <"$g/rebase-merge/msgnum" - read total 2>/dev/null <"$g/rebase-merge/end" + __git_eread "$g/rebase-merge/head-name" b + __git_eread "$g/rebase-merge/msgnum" step + __git_eread "$g/rebase-merge/end" total if [ -f "$g/rebase-merge/interactive" ]; then r="|REBASE-i" else @@ -331,10 +399,10 @@ __git_ps1 () fi else if [ -d "$g/rebase-apply" ]; then - read step 2>/dev/null <"$g/rebase-apply/next" - read total 2>/dev/null <"$g/rebase-apply/last" + __git_eread "$g/rebase-apply/next" step + __git_eread "$g/rebase-apply/last" total if [ -f "$g/rebase-apply/rebasing" ]; then - read b 2>/dev/null <"$g/rebase-apply/head-name" + __git_eread "$g/rebase-apply/head-name" b r="|REBASE" elif [ -f "$g/rebase-apply/applying" ]; then r="|AM" @@ -358,11 +426,8 @@ __git_ps1 () b="$(git symbolic-ref HEAD 2>/dev/null)" else local head="" - if ! read head 2>/dev/null <"$g/HEAD"; then - if [ $pcmode = yes ]; then - PS1="$ps1pc_start$ps1pc_end" - fi - return + if ! __git_eread "$g/HEAD" head; then + return $exit fi # is it a symbolic ref? b="${head#ref: }" @@ -415,7 +480,8 @@ __git_ps1 () fi fi if [ -n "${GIT_PS1_SHOWSTASHSTATE-}" ] && - [ -r "$g/refs/stash" ]; then + git rev-parse --verify --quiet refs/stash >/dev/null + then s="$" fi @@ -438,8 +504,14 @@ __git_ps1 () __git_ps1_colorize_gitstring fi + b=${b##refs/heads/} + if [ $pcmode = yes ] && [ $ps1_expanded = yes ]; then + __git_ps1_branch_name=$b + b="\${__git_ps1_branch_name}" + fi + local f="$w$i$s$u" - local gitstring="$c${b##refs/heads/}${f:+$z$f}$r$p" + local gitstring="$c$b${f:+$z$f}$r$p" if [ $pcmode = yes ]; then if [ "${__git_printf_supports_v-}" != yes ]; then @@ -451,4 +523,6 @@ __git_ps1 () else printf -- "$printf_format" "$gitstring" fi + + return $exit } |