Revision 5f42ac921fe06bbb80df82d8fa5cb15701ec2f60 authored by J. Bruce Fields on 05 August 2007, 23:16:09 UTC, committed by J. Bruce Fields on 05 August 2007, 23:18:05 UTC
It was a neat trick to show that you could introduce the git-add manual
page without using the word "index", and it was certainly an improvement
over the previous man page (which started out "A simple wrapper for
git-update-index to add files to the index...").

But it's possible to use the standard terminology without sacrificing
user-friendliness.  So, rewrite to use the word "index" when
appropriate.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
1 parent 4e0b2bb
Raw File
pager.c
#include "cache.h"

#include <sys/select.h>

/*
 * This is split up from the rest of git so that we might do
 * something different on Windows, for example.
 */

static void run_pager(const char *pager)
{
	/*
	 * Work around bug in "less" by not starting it until we
	 * have real input
	 */
	fd_set in;

	FD_ZERO(&in);
	FD_SET(0, &in);
	select(1, &in, NULL, &in, NULL);

	execlp(pager, pager, NULL);
	execl("/bin/sh", "sh", "-c", pager, NULL);
}

void setup_pager(void)
{
	pid_t pid;
	int fd[2];
	const char *pager = getenv("GIT_PAGER");

	if (!isatty(1))
		return;
	if (!pager)
		pager = getenv("PAGER");
	if (!pager)
		pager = "less";
	else if (!*pager || !strcmp(pager, "cat"))
		return;

	pager_in_use = 1; /* means we are emitting to terminal */

	if (pipe(fd) < 0)
		return;
	pid = fork();
	if (pid < 0) {
		close(fd[0]);
		close(fd[1]);
		return;
	}

	/* return in the child */
	if (!pid) {
		dup2(fd[1], 1);
		close(fd[0]);
		close(fd[1]);
		return;
	}

	/* The original process turns into the PAGER */
	dup2(fd[0], 0);
	close(fd[0]);
	close(fd[1]);

	setenv("LESS", "FRSX", 0);
	run_pager(pager);
	die("unable to execute pager '%s'", pager);
	exit(255);
}
back to top