server-info.o setup.o sha1_file.o sha1_name.o strbuf.o \
tag.o tree.o usage.o config.o environment.o ctype.o copy.o \
fetch-clone.o revision.o pager.o tree-walk.o xdiff-interface.o \
- write_or_die.o \
+ write_or_die.o trace.o \
alloc.o merge-file.o path-list.o help.o unpack-trees.o $(DIFF_OBJS)
BUILTIN_OBJS = \
extern int copy_fd(int ifd, int ofd);
extern void write_or_die(int fd, const void *buf, size_t count);
+extern int write_or_whine(int fd, const void *buf, size_t count, const char *msg);
/* Finish off pack transfer receiving end */
extern int receive_unpack_pack(int fd[2], const char *me, int quiet, int);
extern struct tag *alloc_tag_node(void);
extern void alloc_report(void);
+/* trace.c */
+extern int nfvasprintf(char **str, const char *fmt, va_list va);
+extern void trace_printf(const char *format, ...);
+extern void trace_argv_printf(const char **argv, int count, const char *format, ...);
+
#endif /* CACHE_H */
tmp = argv[0];
argv[0] = git_command;
- if (getenv("GIT_TRACE")) {
- const char **p = argv;
- fputs("trace: exec:", stderr);
- while (*p) {
- fputc(' ', stderr);
- sq_quote_print(stderr, *p);
- ++p;
- }
- putc('\n', stderr);
- fflush(stderr);
- }
+ trace_argv_printf(argv, -1, "trace: exec:");
/* execve() can only ever return if it fails */
execve(git_command, (char **)argv, environ);
- if (getenv("GIT_TRACE")) {
- fprintf(stderr, "trace: exec failed: %s\n",
- strerror(errno));
- fflush(stderr);
- }
+ trace_printf("trace: exec failed: %s\n", strerror(errno));
argv[0] = tmp;
}
if (!strcmp(alias_command, new_argv[0]))
die("recursive alias: %s", alias_command);
- if (getenv("GIT_TRACE")) {
- int i;
- fprintf(stderr, "trace: alias expansion: %s =>",
- alias_command);
- for (i = 0; i < count; ++i) {
- fputc(' ', stderr);
- sq_quote_print(stderr, new_argv[i]);
- }
- fputc('\n', stderr);
- fflush(stderr);
- }
+ trace_argv_printf(new_argv, count,
+ "trace: alias expansion: %s =>",
+ alias_command);
new_argv = xrealloc(new_argv, sizeof(char*) *
(count + *argcp + 1));
prefix = setup_git_directory();
if (p->option & USE_PAGER)
setup_pager();
- if (getenv("GIT_TRACE")) {
- int j;
- fprintf(stderr, "trace: built-in: git");
- for (j = 0; j < argc; ++j) {
- fputc(' ', stderr);
- sq_quote_print(stderr, argv[j]);
- }
- putc('\n', stderr);
- fflush(stderr);
- }
+ trace_argv_printf(argv, argc, "trace: built-in: git");
exit(p->fn(argc, argv, prefix));
}
static void free_generic_messages( message_t * );
-static int nfvasprintf( char **str, const char *fmt, va_list va );
static int nfsnprintf( char *buf, int blen, const char *fmt, ... );
}
}
-static int
-git_vasprintf( char **strp, const char *fmt, va_list ap )
-{
- int len;
- char tmp[1024];
-
- if ((len = vsnprintf( tmp, sizeof(tmp), fmt, ap )) < 0 || !(*strp = xmalloc( len + 1 )))
- return -1;
- if (len >= (int)sizeof(tmp))
- vsprintf( *strp, fmt, ap );
- else
- memcpy( *strp, tmp, len + 1 );
- return len;
-}
-
static int
nfsnprintf( char *buf, int blen, const char *fmt, ... )
{
return ret;
}
-static int
-nfvasprintf( char **str, const char *fmt, va_list va )
-{
- int ret = git_vasprintf( str, fmt, va );
- if (ret < 0)
- die( "Fatal: Out of memory\n");
- return ret;
-}
-
static struct {
unsigned char i, j, s[256];
} rs;
return buf;
}
+char *sq_quote_argv(const char** argv, int count)
+{
+ char *buf, *to;
+ int i;
+ size_t len = 0;
+
+ /* Count argv if needed. */
+ if (count < 0) {
+ for (count = 0; argv[count]; count++)
+ ; /* just counting */
+ }
+
+ /* Special case: no argv. */
+ if (!count)
+ return xcalloc(1,1);
+
+ /* Get destination buffer length. */
+ for (i = 0; i < count; i++)
+ len += sq_quote_buf(NULL, 0, argv[i]) + 1;
+
+ /* Alloc destination buffer. */
+ to = buf = xmalloc(len + 1);
+
+ /* Copy into destination buffer. */
+ for (i = 0; i < count; ++i) {
+ *to++ = ' ';
+ to += sq_quote_buf(to, len, argv[i]);
+ }
+
+ return buf;
+}
+
char *sq_dequote(char *arg)
{
char *dst = arg;
extern char *sq_quote(const char *src);
extern void sq_quote_print(FILE *stream, const char *src);
extern size_t sq_quote_buf(char *dst, size_t n, const char *src);
+extern char *sq_quote_argv(const char** argv, int count);
/* This unwraps what sq_quote() produces in place, but returns
* NULL if the input does not look like what sq_quote would have
unset GIT_EXTERNAL_DIFF
unset GIT_INDEX_FILE
unset GIT_OBJECT_DIRECTORY
-unset GIT_TRACE
unset SHA1_FILE_DIRECTORIES
unset SHA1_FILE_DIRECTORY
export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
--- /dev/null
+/*
+ * 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"
+
+/* Stolen from "imap-send.c". */
+static int git_vasprintf(char **strp, const char *fmt, va_list ap)
+{
+ int len;
+ char tmp[1024];
+
+ if ((len = vsnprintf(tmp, sizeof(tmp), fmt, ap)) < 0 ||
+ !(*strp = xmalloc(len + 1)))
+ return -1;
+ if (len >= (int)sizeof(tmp))
+ vsprintf(*strp, fmt, ap);
+ else
+ memcpy(*strp, tmp, len + 1);
+ return len;
+}
+
+/* Stolen from "imap-send.c". */
+int nfvasprintf(char **str, const char *fmt, va_list va)
+{
+ int ret = git_vasprintf(str, fmt, va);
+ if (ret < 0)
+ die("Fatal: Out of memory\n");
+ return ret;
+}
+
+/* Get a trace file descriptor from GIT_TRACE env variable. */
+static int get_trace_fd()
+{
+ char *trace = getenv("GIT_TRACE");
+
+ if (!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);
+
+ fprintf(stderr, "What does '%s' for GIT_TRACE means ?\n", trace);
+ 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_printf(const char *format, ...)
+{
+ char *trace_str;
+ va_list rest;
+ int fd = get_trace_fd();
+
+ if (!fd)
+ return;
+
+ va_start(rest, format);
+ nfvasprintf(&trace_str, format, rest);
+ va_end(rest);
+
+ write_or_whine(fd, trace_str, strlen(trace_str), err_msg);
+
+ free(trace_str);
+}
+
+void trace_argv_printf(const char **argv, int count, const char *format, ...)
+{
+ char *argv_str, *format_str, *trace_str;
+ size_t argv_len, format_len, trace_len;
+ va_list rest;
+ int fd = get_trace_fd();
+
+ if (!fd)
+ return;
+
+ /* Get the argv string. */
+ argv_str = sq_quote_argv(argv, count);
+ argv_len = strlen(argv_str);
+
+ /* Get the formated string. */
+ va_start(rest, format);
+ nfvasprintf(&format_str, format, rest);
+ va_end(rest);
+
+ /* Allocate buffer for trace string. */
+ format_len = strlen(format_str);
+ trace_len = argv_len + format_len + 1; /* + 1 for \n */
+ trace_str = xmalloc(trace_len + 1);
+
+ /* Copy everything into the trace string. */
+ strncpy(trace_str, format_str, format_len);
+ strncpy(trace_str + format_len, argv_str, argv_len);
+ strcpy(trace_str + trace_len - 1, "\n");
+
+ write_or_whine(fd, trace_str, trace_len, err_msg);
+
+ free(argv_str);
+ free(format_str);
+ free(trace_str);
+}
p += written;
}
}
+
+int write_or_whine(int fd, const void *buf, size_t count, const char *msg)
+{
+ const char *p = buf;
+ ssize_t written;
+
+ while (count > 0) {
+ written = xwrite(fd, p, count);
+ if (written == 0) {
+ fprintf(stderr, "%s: disk full?\n", msg);
+ return 0;
+ }
+ else if (written < 0) {
+ if (errno == EPIPE)
+ exit(0);
+ fprintf(stderr, "%s: write error (%s)\n",
+ msg, strerror(errno));
+ return 0;
+ }
+ count -= written;
+ p += written;
+ }
+
+ return 1;
+}
projects / ~andy / git / commitdiff