bisect--helper: introduce new write_in_file() function

Let's refactor code adding a new `write_in_file()` function
that opens a file for writing a message and closes it and a
wrapper for writing mode.

This helper will be used in later steps and makes the code
simpler and easier to understand.

Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Mentored-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Miriam Rubio <mirucam@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Miriam Rubio 2020-08-28 14:46:07 +02:00 committed by Junio C Hamano
parent 30276765c1
commit 7b4de74b5d

View file

@ -74,6 +74,40 @@ static int one_of(const char *term, ...)
return res;
}
static int write_in_file(const char *path, const char *mode, const char *format, va_list args)
{
FILE *fp = NULL;
int res = 0;
if (strcmp(mode, "w"))
BUG("write-in-file does not support '%s' mode", mode);
fp = fopen(path, mode);
if (!fp)
return error_errno(_("cannot open file '%s' in mode '%s'"), path, mode);
res = vfprintf(fp, format, args);
if (res < 0) {
int saved_errno = errno;
fclose(fp);
errno = saved_errno;
return error_errno(_("could not write to file '%s'"), path);
}
return fclose(fp);
}
static int write_to_file(const char *path, const char *format, ...)
{
int res;
va_list args;
va_start(args, format);
res = write_in_file(path, "w", format, args);
va_end(args);
return res;
}
static int check_term_format(const char *term, const char *orig_term)
{
int res;
@ -104,7 +138,6 @@ static int check_term_format(const char *term, const char *orig_term)
static int write_terms(const char *bad, const char *good)
{
FILE *fp = NULL;
int res;
if (!strcmp(bad, good))
@ -113,13 +146,9 @@ static int write_terms(const char *bad, const char *good)
if (check_term_format(bad, "bad") || check_term_format(good, "good"))
return -1;
fp = fopen(git_path_bisect_terms(), "w");
if (!fp)
return error_errno(_("could not open the file BISECT_TERMS"));
res = write_to_file(git_path_bisect_terms(), "%s\n%s\n", bad, good);
res = fprintf(fp, "%s\n%s\n", bad, good);
res |= fclose(fp);
return (res < 0) ? -1 : 0;
return res;
}
static int is_expected_rev(const char *expected_hex)