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authorLibravatar Junio C Hamano <junkio@cox.net>2006-04-16 01:49:13 -0700
committerLibravatar Junio C Hamano <junkio@cox.net>2006-04-16 01:49:13 -0700
commite4284db2c56e9945514cf91e767f9267665074be (patch)
tree5db6728c9b5203de3a8cf9c941ea62eca76f4a3f
parentMerge branch 'lt/logopt' into next (diff)
parentDo not fork PAGER=cat (diff)
downloadtgif-e4284db2c56e9945514cf91e767f9267665074be.tar.xz
Merge branch 'jc/pager-cat' into next
* jc/pager-cat: Do not fork PAGER=cat pager: do not fork a pager if PAGER is set to empty.
-rw-r--r--pager.c17
1 files changed, 10 insertions, 7 deletions
diff --git a/pager.c b/pager.c
index 1364e15d23..b063353d96 100644
--- a/pager.c
+++ b/pager.c
@@ -5,22 +5,24 @@
* something different on Windows, for example.
*/
-static void run_pager(void)
+static void run_pager(const char *pager)
{
- const char *prog = getenv("PAGER");
- if (!prog)
- prog = "less";
- setenv("LESS", "-S", 0);
- execlp(prog, prog, NULL);
+ execlp(pager, pager, NULL);
}
void setup_pager(void)
{
pid_t pid;
int fd[2];
+ const char *pager = getenv("PAGER");
if (!isatty(1))
return;
+ if (!pager)
+ pager = "less";
+ else if (!*pager || !strcmp(pager, "cat"))
+ return;
+
if (pipe(fd) < 0)
return;
pid = fork();
@@ -43,6 +45,7 @@ void setup_pager(void)
close(fd[0]);
close(fd[1]);
- run_pager();
+ setenv("LESS", "-S", 0);
+ run_pager(pager);
exit(255);
}