git-log produces no output

When $PAGER is set to 'less -i', we used to fail because we
assumed the $PAGER is a command and simply exec'ed it.

Try exec first, and then run it through shell if it fails.  This
allows even funkier PAGERs like these ;-):

	PAGER='sed -e "s/^/`date`: /" | more'
	PAGER='contrib/colordiff.perl | less -RS'

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/pager.c b/pager.c
index e5ba273..f7b8e78 100644 (file)
--- a/pager.c
+++ b/pager.c
@@ -8,6 +8,7 @@
 static void run_pager(const char *pager)
 {
        execlp(pager, pager, NULL);
+       execl("/bin/sh", "sh", "-c", pager, NULL);
 }
 
 void setup_pager(void)
@@ -47,5 +48,6 @@ void setup_pager(void)
 
        setenv("LESS", "-S", 0);
        run_pager(pager);
+       die("unable to execute pager '%s'", pager);
        exit(255);
 }