Revision 3adab6f3a7793253b22a4a7aae34221d19e0236a authored by Junio C Hamano on 09 February 2012, 21:30:52 UTC, committed by Junio C Hamano on 09 February 2012, 21:30:52 UTC
When the user explicitly asked us not to, don't launch an editor. But do everything else the same way as the "edit" case, i.e. leave the comment with verification result in the log template and record the mergesig in the resulting merge commit for later inspection. Based on initiail analysis by Jonathan Nieder. Signed-off-by: Junio C Hamano <gitster@pobox.com>
1 parent b5c9f1c
trace.c
/*
* GIT - The information manager from hell
*
* Copyright (C) 2000-2002 Michael R. Elkins <me@mutt.org>
* Copyright (C) 2002-2004 Oswald Buddenhagen <ossi@users.sf.net>
* Copyright (C) 2004 Theodore Y. Ts'o <tytso@mit.edu>
* Copyright (C) 2006 Mike McCormack
* Copyright (C) 2006 Christian Couder
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "cache.h"
#include "quote.h"
/* Get a trace file descriptor from "key" env variable. */
static int get_trace_fd(const char *key, int *need_close)
{
char *trace = getenv(key);
if (!trace || !strcmp(trace, "") ||
!strcmp(trace, "0") || !strcasecmp(trace, "false"))
return 0;
if (!strcmp(trace, "1") || !strcasecmp(trace, "true"))
return STDERR_FILENO;
if (strlen(trace) == 1 && isdigit(*trace))
return atoi(trace);
if (is_absolute_path(trace)) {
int fd = open(trace, O_WRONLY | O_APPEND | O_CREAT, 0666);
if (fd == -1) {
fprintf(stderr,
"Could not open '%s' for tracing: %s\n"
"Defaulting to tracing on stderr...\n",
trace, strerror(errno));
return STDERR_FILENO;
}
*need_close = 1;
return fd;
}
fprintf(stderr, "What does '%s' for %s mean?\n", trace, key);
fprintf(stderr, "If you want to trace into a file, "
"then please set %s to an absolute pathname "
"(starting with /).\n", key);
fprintf(stderr, "Defaulting to tracing on stderr...\n");
return STDERR_FILENO;
}
static const char err_msg[] = "Could not trace into fd given by "
"GIT_TRACE environment variable";
void trace_vprintf(const char *key, const char *fmt, va_list ap)
{
struct strbuf buf = STRBUF_INIT;
if (!trace_want(key))
return;
set_try_to_free_routine(NULL); /* is never reset */
strbuf_vaddf(&buf, fmt, ap);
trace_strbuf(key, &buf);
strbuf_release(&buf);
}
static void trace_printf_key(const char *key, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
trace_vprintf(key, fmt, ap);
va_end(ap);
}
void trace_printf(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
trace_vprintf("GIT_TRACE", fmt, ap);
va_end(ap);
}
void trace_strbuf(const char *key, const struct strbuf *buf)
{
int fd, need_close = 0;
fd = get_trace_fd(key, &need_close);
if (!fd)
return;
write_or_whine_pipe(fd, buf->buf, buf->len, err_msg);
if (need_close)
close(fd);
}
void trace_argv_printf(const char **argv, const char *fmt, ...)
{
struct strbuf buf = STRBUF_INIT;
va_list ap;
int fd, need_close = 0;
fd = get_trace_fd("GIT_TRACE", &need_close);
if (!fd)
return;
set_try_to_free_routine(NULL); /* is never reset */
va_start(ap, fmt);
strbuf_vaddf(&buf, fmt, ap);
va_end(ap);
sq_quote_argv(&buf, argv, 0);
strbuf_addch(&buf, '\n');
write_or_whine_pipe(fd, buf.buf, buf.len, err_msg);
strbuf_release(&buf);
if (need_close)
close(fd);
}
static const char *quote_crnl(const char *path)
{
static char new_path[PATH_MAX];
const char *p2 = path;
char *p1 = new_path;
if (!path)
return NULL;
while (*p2) {
switch (*p2) {
case '\\': *p1++ = '\\'; *p1++ = '\\'; break;
case '\n': *p1++ = '\\'; *p1++ = 'n'; break;
case '\r': *p1++ = '\\'; *p1++ = 'r'; break;
default:
*p1++ = *p2;
}
p2++;
}
*p1 = '\0';
return new_path;
}
/* FIXME: move prefix to startup_info struct and get rid of this arg */
void trace_repo_setup(const char *prefix)
{
static const char *key = "GIT_TRACE_SETUP";
const char *git_work_tree;
char cwd[PATH_MAX];
if (!trace_want(key))
return;
if (!getcwd(cwd, PATH_MAX))
die("Unable to get current working directory");
if (!(git_work_tree = get_git_work_tree()))
git_work_tree = "(null)";
if (!prefix)
prefix = "(null)";
trace_printf_key(key, "setup: git_dir: %s\n", quote_crnl(get_git_dir()));
trace_printf_key(key, "setup: worktree: %s\n", quote_crnl(git_work_tree));
trace_printf_key(key, "setup: cwd: %s\n", quote_crnl(cwd));
trace_printf_key(key, "setup: prefix: %s\n", quote_crnl(prefix));
}
int trace_want(const char *key)
{
const char *trace = getenv(key);
if (!trace || !strcmp(trace, "") ||
!strcmp(trace, "0") || !strcasecmp(trace, "false"))
return 0;
return 1;
}
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