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From: Miriam Rubio <mirucam@gmail.com>
To: git@vger.kernel.org
Cc: Miriam Rubio <mirucam@gmail.com>,
	Christian Couder <chriscool@tuxfamily.org>,
	Johannes Schindelin <Johannes.Schindelin@gmx.de>
Subject: [PATCH v7 03/13] bisect--helper: introduce new `write_in_file()` function
Date: Mon, 31 Aug 2020 12:50:33 +0200	[thread overview]
Message-ID: <20200831105043.97665-4-mirucam@gmail.com> (raw)
In-Reply-To: <20200831105043.97665-1-mirucam@gmail.com>

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>
---
 builtin/bisect--helper.c | 43 +++++++++++++++++++++++++++++++++-------
 1 file changed, 36 insertions(+), 7 deletions(-)

diff --git a/builtin/bisect--helper.c b/builtin/bisect--helper.c
index b7345be3a5..bae09ce65d 100644
--- a/builtin/bisect--helper.c
+++ b/builtin/bisect--helper.c
@@ -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)
-- 
2.25.0


  parent reply	other threads:[~2020-08-31 10:51 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-31 10:50 [PATCH v7 00/13] Finish converting git bisect to C part 2 Miriam Rubio
2020-08-31 10:50 ` [PATCH v7 01/13] bisect--helper: BUG() in cmd_*() on invalid subcommand Miriam Rubio
2020-08-31 10:50 ` [PATCH v7 02/13] bisect--helper: use '-res' in 'cmd_bisect__helper' return Miriam Rubio
2020-08-31 10:50 ` Miriam Rubio [this message]
2020-08-31 10:50 ` [PATCH v7 04/13] bisect--helper: reimplement `bisect_autostart` shell function in C Miriam Rubio
2020-09-03  5:50   ` Johannes Schindelin
2020-08-31 10:50 ` [PATCH v7 05/13] bisect: call 'clear_commit_marks_all()' in 'bisect_next_all()' Miriam Rubio
2020-08-31 10:50 ` [PATCH v7 06/13] bisect--helper: reimplement `bisect_next` and `bisect_auto_next` shell functions in C Miriam Rubio
2020-09-03  9:48   ` Johannes Schindelin
2020-08-31 10:50 ` [PATCH v7 07/13] bisect--helper: finish porting `bisect_start()` to C Miriam Rubio
2020-09-03  9:56   ` Johannes Schindelin
2020-08-31 10:50 ` [PATCH v7 08/13] bisect--helper: retire `--bisect-clean-state` subcommand Miriam Rubio
2020-08-31 10:50 ` [PATCH v7 09/13] bisect--helper: retire `--next-all` subcommand Miriam Rubio
2020-08-31 10:50 ` [PATCH v7 10/13] bisect--helper: reimplement `bisect_state` & `bisect_head` shell functions in C Miriam Rubio
2020-09-03 12:03   ` Johannes Schindelin
2020-08-31 10:50 ` [PATCH v7 11/13] bisect--helper: retire `--check-expected-revs` subcommand Miriam Rubio
2020-08-31 10:50 ` [PATCH v7 12/13] bisect--helper: retire `--write-terms` subcommand Miriam Rubio
2020-08-31 10:50 ` [PATCH v7 13/13] bisect--helper: retire `--bisect-autostart` subcommand Miriam Rubio
2020-09-03 12:04 ` [PATCH v7 00/13] Finish converting git bisect to C part 2 Johannes Schindelin
2020-09-23  7:26   ` Miriam R.
2020-09-23 14:48     ` Johannes Schindelin
2020-09-23 21:23       ` Johannes Schindelin
2020-09-24  5:33         ` Christian Couder
2020-09-24  7:56           ` Johannes Schindelin
2020-09-24 10:46             ` Christian Couder
2020-09-24 12:53               ` Miriam R.
2020-09-24 12:56         ` Miriam R.

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