From 64778d24a93ad455e5883120aef350ede20061c4 Mon Sep 17 00:00:00 2001 From: Jonathan Nieder Date: Sun, 14 Feb 2010 05:59:59 -0600 Subject: [PATCH] Make 'git var GIT_PAGER' always print the configured pager MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Scripted commands that want to use git’s configured pager know better than ‘git var’ does whether stdout is going to be a tty at the appropriate time. Checking isatty(1) as git_pager() does now won’t cut it, since the output of git var itself is almost never a terminal. The symptom is that when used by humans, ‘git var GIT_PAGER’ behaves as it should, but when used by scripts, it always returns ‘cat’! So avoid tricks with isatty() and just always print the configured pager. This does not fix the callers to check isatty(1) themselves yet. Nevertheless, this patch alone is enough to fix 'am --interactive'. Thanks to Sebastian Celis for the report and Jeff King for the analysis. Reported-by: Sebastian Celis Signed-off-by: Jonathan Nieder Signed-off-by: Junio C Hamano --- builtin-var.c | 2 +- cache.h | 2 +- pager.c | 6 +++--- 3 files changed, 5 insertions(+), 5 deletions(-) diff --git a/builtin-var.c b/builtin-var.c index e6ee7bc0b..70fdb4dec 100644 --- a/builtin-var.c +++ b/builtin-var.c @@ -20,7 +20,7 @@ static const char *editor(int flag) static const char *pager(int flag) { - const char *pgm = git_pager(); + const char *pgm = git_pager(1); if (!pgm) pgm = "cat"; diff --git a/cache.h b/cache.h index d478eff1f..d454b7e68 100644 --- a/cache.h +++ b/cache.h @@ -775,7 +775,7 @@ extern const char *git_committer_info(int); extern const char *fmt_ident(const char *name, const char *email, const char *date_str, int); extern const char *fmt_name(const char *name, const char *email); extern const char *git_editor(void); -extern const char *git_pager(void); +extern const char *git_pager(int stdout_is_tty); struct checkout { const char *base_dir; diff --git a/pager.c b/pager.c index 2c7e8ecb3..dac358f04 100644 --- a/pager.c +++ b/pager.c @@ -48,11 +48,11 @@ static void wait_for_pager_signal(int signo) raise(signo); } -const char *git_pager(void) +const char *git_pager(int stdout_is_tty) { const char *pager; - if (!isatty(1)) + if (!stdout_is_tty) return NULL; pager = getenv("GIT_PAGER"); @@ -73,7 +73,7 @@ const char *git_pager(void) void setup_pager(void) { - const char *pager = git_pager(); + const char *pager = git_pager(isatty(1)); if (!pager) return; -- 2.30.2