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From: "Johannes Schindelin via GitGitGadget" <gitgitgadget@gmail.com>
To: git@vger.kernel.org
Cc: Johannes Schindelin <johannes.schindelin@gmx.de>,
	Johannes Schindelin <johannes.schindelin@gmx.de>
Subject: [PATCH 2/6] range-diff: libify the read_patches() function again
Date: Thu, 04 Feb 2021 20:07:50 +0000	[thread overview]
Message-ID: <0d25dd2a9c2d15479d098b10a85cf14144329a57.1612469275.git.gitgitgadget@gmail.com> (raw)
In-Reply-To: <pull.869.git.1612469275.gitgitgadget@gmail.com>

From: Johannes Schindelin <johannes.schindelin@gmx.de>

In library functions, we do want to avoid the (simple, but rather final)
`die()` calls, instead returning with a value indicating an error.

Let's do exactly that in the code introduced in b66885a30cb8
(range-diff: add section header instead of diff header, 2019-07-11) that
wants to error out if a diff header could not be parsed.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
 range-diff.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/range-diff.c b/range-diff.c
index 963cdecb4cbb..6707b728a07f 100644
--- a/range-diff.c
+++ b/range-diff.c
@@ -135,9 +135,16 @@ static int read_patches(const char *range, struct string_list *list,
 			orig_len = len;
 			len = parse_git_diff_header(&root, &linenr, 0, line,
 						    len, size, &patch);
-			if (len < 0)
-				die(_("could not parse git header '%.*s'"),
-				    orig_len, line);
+			if (len < 0) {
+				error(_("could not parse git header '%.*s'"),
+				      orig_len, line);
+				free(util);
+				free(current_filename);
+				string_list_clear(list, 1);
+				strbuf_release(&buf);
+				strbuf_release(&contents);
+				return -1;
+			}
 			strbuf_addstr(&buf, " ## ");
 			if (patch.is_new > 0)
 				strbuf_addf(&buf, "%s (new)", patch.new_name);
-- 
gitgitgadget


  parent reply	other threads:[~2021-02-04 20:15 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-04 20:07 [PATCH 0/6] Optionally restrict range-diff output to "left" or "right" range only Johannes Schindelin via GitGitGadget
2021-02-04 20:07 ` [PATCH 1/6] range-diff: avoid leaking memory in two error code paths Johannes Schindelin via GitGitGadget
2021-02-04 20:07 ` Johannes Schindelin via GitGitGadget [this message]
2021-02-04 20:07 ` [PATCH 3/6] range-diff: simplify code spawning `git log` Johannes Schindelin via GitGitGadget
2021-02-04 20:07 ` [PATCH 4/6] range-diff: combine all options in a single data structure Johannes Schindelin via GitGitGadget
2021-02-04 23:56   ` Eric Sunshine
2021-02-05 14:13     ` Johannes Schindelin
2021-02-04 20:07 ` [PATCH 5/6] range-diff: move the diffopt initialization down one layer Johannes Schindelin via GitGitGadget
2021-02-04 20:07 ` [PATCH 6/6] range-diff: offer --left-only/--right-only options Johannes Schindelin via GitGitGadget
2021-02-04 22:41 ` [PATCH 0/6] Optionally restrict range-diff output to "left" or "right" range only Junio C Hamano
2021-02-04 22:48   ` Taylor Blau
2021-02-05  0:56     ` Junio C Hamano
2021-02-05 10:11       ` Jeff King
2021-02-08 22:36         ` Johannes Schindelin
2021-02-05 20:05       ` Taylor Blau
2021-02-05 14:46 ` [PATCH v2 " Johannes Schindelin via GitGitGadget
2021-02-05 14:46   ` [PATCH v2 1/6] range-diff: avoid leaking memory in two error code paths Johannes Schindelin via GitGitGadget
2021-02-05 14:46   ` [PATCH v2 2/6] range-diff: libify the read_patches() function again Johannes Schindelin via GitGitGadget
2021-02-05 14:46   ` [PATCH v2 3/6] range-diff: simplify code spawning `git log` Johannes Schindelin via GitGitGadget
2021-02-05 14:46   ` [PATCH v2 4/6] range-diff: combine all options in a single data structure Johannes Schindelin via GitGitGadget
2021-02-05 14:46   ` [PATCH v2 5/6] range-diff: move the diffopt initialization down one layer Johannes Schindelin via GitGitGadget
2021-02-05 14:46   ` [PATCH v2 6/6] range-diff: offer --left-only/--right-only options Johannes Schindelin via GitGitGadget

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