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[PATCH 16/19] bash prompt: display stash and upstream state even inside the repository

From
SZEDER Gábor <szeder@ira.uka.de>
Date
May 9, 2012, 00:44 UTC
Message-ID
<1336524290-30023-17-git-send-email-szeder@ira.uka.de>
In-Reply-To
<1336524290-30023-1-git-send-email-szeder@ira.uka.de>

Besides the current branch name or detached head info __git_ps1() can also display some status indicators in the prompt. The first such indicator was for changes in the work tree in 738a94a9 (bash: offer to show (un)staged changes, 2009-02-03), and was only checked/displayed when inside the work tree. Later other indicators were added in 2414b45c (Show presence of stashed changes in bash prompt., 2009-06-02), 397f7c63 (Show the presence of untracked files in the bash prompt., 2009-07-22), and 6d158cba (bash completion: Support "divergence from upstream" messages in __git_ps1, 2010-06-17). All of these just followed suit and were checked only when inside the work tree, i.e. after checking the results of the '$(git rev-parse --is-inside-work-tree)' command substitution, imposing the overhead of fork()ing a subshell and fork()+exec()ing a git process.

However, the presence of stashes and the divergence from upstream is not a property of the work tree but a property of the repository, and the implementation of their indicators doesn't actually require a work tree. Therefore, we can display these two indicators even inside the repository. Not that it's very useful to see the stash status while poking around deep inside the .git directory, but this way users enabling only the stash indicator won't pay the additional performance penalty of the check for the work tree.

Signed-off-by: SZEDER Gábor <szeder@ira.uka.de>
---
 contrib/completion/git-completion.bash | 20 +++++++++-----------
 t/t9903-bash-prompt.sh                 |  4 ++--
 2 files changed, 11 insertions(+), 13 deletions(-)
diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index 2346962d..64207e3c 100755
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -334,9 +334,7 @@ __git_ps1 ()
 			b="GIT_DIR!"
 		fi
 	elif [ -n "${GIT_PS1_SHOWDIRTYSTATE-}" \
-			-o -n "${GIT_PS1_SHOWSTASHSTATE-}" \
-			-o -n "${GIT_PS1_SHOWUNTRACKEDFILES-}" \
-			-n "${GIT_PS1_SHOWUPSTREAM-}" ]; then
+			-o -n "${GIT_PS1_SHOWUNTRACKEDFILES-}" ]; then
 		if [ "true" = "$(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
@@ -349,22 +347,22 @@ __git_ps1 ()
 				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
 	fi
 
+	if [ -n "${GIT_PS1_SHOWSTASHSTATE-}" ]; then
+	        git rev-parse --verify refs/stash >/dev/null 2>&1 && s="$"
+	fi
+
+	if [ -n "${GIT_PS1_SHOWUPSTREAM-}" ]; then
+		__git_ps1_show_upstream
+	fi
+
 	local f="$w$i$s$u"
 	printf -- "${1:- (%s)}" "$c${b##refs/heads/}${f:+ $f}$r$p"
 }
diff --git a/t/t9903-bash-prompt.sh b/t/t9903-bash-prompt.sh
index ffa22d39..a43d402a 100755
--- a/t/t9903-bash-prompt.sh
+++ b/t/t9903-bash-prompt.sh
@@ -542,8 +542,8 @@ test_expect_success 'prompt - stash status indicator - stash' '
 	test_cmp expected "$actual"
 '
 
-test_expect_success 'prompt - stash status indicator - not shown inside .git directory' '
-	printf " (GIT_DIR!)" > expected &&
+test_expect_success 'prompt - stash status indicator - stash while inside .git directory' '
+	printf " (GIT_DIR! $)" > expected &&
 	echo 2 >file &&
 	git stash &&
 	test_when_finished "git stash drop" &&
-- 
1.7.10.1.541.gb1be298
Previous: SZEDER GáborNext: SZEDER Gábor
Message 44 of 50 in “Bash prompt speedup”
  1. 00/19 Bash prompt speedupSZEDER Gábor, May 9, 2012
  2. 01/19 tests: move code to run tests under bash into a helper librarySZEDER Gábor, May 9, 2012
  3. 02/19 tests: add tests for the bash prompt functions in the completion scriptSZEDER Gábor, May 9, 2012
  4. Johannes SixtMay 9, 2012
  5. Junio C HamanoMay 9, 2012
  6. Johannes SixtMay 10, 2012
  7. Junio C HamanoMay 9, 2012
  8. SZEDER GáborMay 9, 2012
  9. 03/19 completion: use __gitdir() in _git_log()SZEDER Gábor, May 9, 2012
  10. Junio C HamanoMay 9, 2012
  11. SZEDER GáborMay 9, 2012
  12. 04/19 completion: respect $GIT_DIRSZEDER Gábor, May 9, 2012
  13. Johannes SixtMay 9, 2012
  14. Junio C HamanoMay 9, 2012
  15. 05/19 bash prompt: don't show the prompt when .git/HEAD is unreadableSZEDER Gábor, May 9, 2012
  16. Junio C HamanoMay 9, 2012
  17. SZEDER GáborMay 9, 2012
  18. 06/19 bash prompt: return early from __git_ps1() when not in a git repositorySZEDER Gábor, May 9, 2012
  19. 07/19 completion: make __gitdir() store repository path in $__git_dirSZEDER Gábor, May 9, 2012
  20. Junio C HamanoMay 9, 2012
  21. 08/19 completion: use $__git_dir instead of $(__gitdir)SZEDER Gábor, May 9, 2012
  22. Junio C HamanoMay 9, 2012
  23. SZEDER GáborMay 9, 2012
  24. Junio C HamanoMay 9, 2012
  25. SZEDER GáborMay 9, 2012
  26. 09/19 completion: platform-specific helper function to get physical pathSZEDER Gábor, May 9, 2012
  27. Johannes SixtMay 9, 2012
  28. 10/19 completion: use bash builtins to search for repositorySZEDER Gábor, May 9, 2012
  29. Junio C HamanoMay 9, 2012
  30. SZEDER GáborMay 9, 2012
  31. Junio C HamanoMay 9, 2012
  32. 11/19 bash prompt: use bash builtins to find out current branchSZEDER Gábor, May 9, 2012
  33. Junio C HamanoMay 9, 2012
  34. SZEDER GáborMay 9, 2012
  35. Junio C HamanoMay 9, 2012
  36. SZEDER GáborMay 9, 2012
  37. Junio C HamanoMay 9, 2012
  38. 12/19 bash prompt: use bash builtins to check whether inside git dirSZEDER Gábor, May 9, 2012
  39. Johannes SixtMay 9, 2012
  40. Junio C HamanoMay 9, 2012
  41. 13/19 bash prompt: check whether inside the worktree only when necessarySZEDER Gábor, May 9, 2012
  42. 14/19 bash prompt: use bash builtins to find out current branch during rebaseSZEDER Gábor, May 9, 2012
  43. 15/19 bash prompt: use bash builtins to get detached HEAD abbrev. object nameSZEDER Gábor, May 9, 2012
  44. 16/19 bash prompt: display stash and upstream state even inside the repositorySZEDER Gábor, May 9, 2012
  45. 17/19 bash prompt: use bash builtins to check stash stateSZEDER Gábor, May 9, 2012
  46. 18/19 bash prompt: avoid command substitution when checking for untracked filesSZEDER Gábor, May 9, 2012
  47. Junio C HamanoMay 9, 2012
  48. 19/19 bash prompt: alternative git prompt without command substitutionSZEDER Gábor, May 9, 2012
  49. Andrew SayersMay 9, 2012
  50. SZEDER GáborMay 9, 2012

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