[PATCH 04/10] setup_pager: set GIT_PAGER_IN_USE
- From
Jeff King <peff@peff.net>
- Date
- Aug 18, 2011, 05:02 UTC
- Message-ID
- <20110818050227.GD2889@sigill.intra.peff.net>
- In-Reply-To
- <20110818045821.GA17377@sigill.intra.peff.net>
We have always set a global "spawned_pager" variable when we start the pager. This lets us make the auto-color decision later in the program as as "we are outputting to a terminal, or to a pager which can handle colors".
Commit 6e9af86 added support for the GIT_PAGER_IN_USE environment variable. An external program calling git (e.g., git-svn) could set this variable to indicate that it had already started the pager, and that the decision about auto-coloring should take that into account.
However, 6e9af86 failed to do the reverse, which is to tell external programs when git itself has started the pager. Thus a git command implemented as an external script that has the pager turned on (e.g., "git -p stash show") would not realize it was going to a pager, and would suppress colors.
This patch remedies that; we always set GIT_PAGER_IN_USE when we start the pager, and the value is respected by both this program and any spawned children.
Signed-off-by: Jeff King <peff@peff.net> --- pager.c | 8 +------- t/t7006-pager.sh | 11 +++++++++++ 2 files changed, 12 insertions(+), 7 deletions(-)
diff --git a/pager.c b/pager.c index dac358f..975955b 100644 --- a/pager.c +++ b/pager.c @@ -11,8 +11,6 @@ * something different on Windows. */ -static int spawned_pager; - #ifndef WIN32 static void pager_preexec(void) { @@ -78,7 +76,7 @@ void setup_pager(void) if (!pager) return; - spawned_pager = 1; /* means we are emitting to terminal */ + setenv("GIT_PAGER_IN_USE", "true", 1); /* spawn the pager */ pager_argv[0] = pager; @@ -109,10 +107,6 @@ void setup_pager(void) int pager_in_use(void) { const char *env; - - if (spawned_pager) - return 1; - env = getenv("GIT_PAGER_IN_USE"); return env ? git_config_bool("GIT_PAGER_IN_USE", env) : 0; } diff --git a/t/t7006-pager.sh b/t/t7006-pager.sh index 2ac729f..4884e1b 100755 --- a/t/t7006-pager.sh +++ b/t/t7006-pager.sh @@ -181,6 +181,17 @@ test_expect_success 'color when writing to a file intended for a pager' ' colorful colorful.log ' +test_expect_success TTY 'colors are sent to pager for external commands' ' + test_config alias.externallog "!git log" && + test_config color.ui auto && + ( + TERM=vt100 && + export TERM && + test_terminal git -p externallog + ) && + colorful paginated.out +' + # Use this helper to make it easy for the caller of your # terminal-using function to specify whether it should fail. # If you write
-- 1.7.6.10.g62f04