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| author | Brandon Casey <drafnel@gmail.com> | 2013-08-22 01:39:03 (GMT) |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2013-08-22 16:50:16 (GMT) |
| commit | a44aa6930c9f3ce914f135c00a62878f9027f583 (patch) | |
| tree | 6e4d42663aea48e3997918913356364b50bf1dd8 /contrib/completion/git-prompt.sh | |
| parent | 0ef09702d6b7fbd225d1e7adeca7b32304be529f (diff) | |
| download | git-a44aa6930c9f3ce914f135c00a62878f9027f583.zip git-a44aa6930c9f3ce914f135c00a62878f9027f583.tar.gz git-a44aa6930c9f3ce914f135c00a62878f9027f583.tar.bz2 | |
contrib/git-prompt.sh: handle missing 'printf -v' more gracefully
Old Bash (3.0) which is distributed with RHEL 4.X and other ancient
platforms that are still in wide use, do not have a printf that
supports -v. Neither does Zsh (which is already handled in the code).
As suggested by Junio, let's test whether printf supports the -v
option and store the result. Then later, we can use it to
determine whether 'printf -v' can be used, or whether printf
must be called in a subshell.
Signed-off-by: Brandon Casey <drafnel@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'contrib/completion/git-prompt.sh')
| -rw-r--r-- | contrib/completion/git-prompt.sh | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/contrib/completion/git-prompt.sh b/contrib/completion/git-prompt.sh index a81ef5a..d6c61b2 100644 --- a/contrib/completion/git-prompt.sh +++ b/contrib/completion/git-prompt.sh @@ -84,6 +84,10 @@ # the colored output of "git status -sb" and are available only when # using __git_ps1 for PROMPT_COMMAND or precmd. +# check whether printf supports -v +__git_printf_supports_v= +printf -v __git_printf_supports_v -- '%s' yes >/dev/null 2>&1 + # stores the divergence from upstream in $p # used by GIT_PS1_SHOWUPSTREAM __git_ps1_show_upstream () @@ -433,7 +437,7 @@ __git_ps1 () local gitstring="$c${b##refs/heads/}${f:+$z$f}$r$p" if [ $pcmode = yes ]; then - if [[ -n ${ZSH_VERSION-} ]]; then + if [ "${__git_printf_supports_v-}" != yes ]; then gitstring=$(printf -- "$printf_format" "$gitstring") else printf -v gitstring -- "$printf_format" "$gitstring" |