Thread (1 message) 1 message, 1 author, 2016-06-15

Re: [PATCH 2/5] diff: allow --patch to override -s/--no-patch

From: Junio C Hamano <hidden>
Date: 2016-06-15 22:58:10

Matthieu Moy [off-list ref] writes:
quoted hunk
Signed-off-by: Matthieu Moy <redacted>
---
 diff.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/diff.c b/diff.c
index 6bd821d..66a6877 100644
--- a/diff.c
+++ b/diff.c
@@ -3515,9 +3515,10 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
 	int argcount;
 
 	/* Output format options */
-	if (!strcmp(arg, "-p") || !strcmp(arg, "-u") || !strcmp(arg, "--patch"))
+	if (!strcmp(arg, "-p") || !strcmp(arg, "-u") || !strcmp(arg, "--patch")) {
+		options->output_format &= ~DIFF_FORMAT_NO_OUTPUT;
 		options->output_format |= DIFF_FORMAT_PATCH;
-	else if (opt_arg(arg, 'U', "unified", &options->context))
+	} else if (opt_arg(arg, 'U', "unified", &options->context))
 		options->output_format |= DIFF_FORMAT_PATCH;
 	else if (!strcmp(arg, "--raw"))
 		options->output_format |= DIFF_FORMAT_RAW;
I am wondering if the difference after this patch between "-p" and
"-U8" is deliberate, or just an accident coming from the way the
original was written in ee1e5412 (git diff: support "-U" and
"--unified" options properly, 2006-05-13).

If the original were written in this way:

	if (!strcmp(arg, "-p") || !strcmp(arg, "-u") || !strcmp(arg, "--patch") ||
            opt_arg(arg, 'U', "unified", &options->context))
  		options->output_format |= DIFF_FORMAT_PATCH;

I suspect you would have given the additional

		options->output_format &= ~DIFF_FORMAT_NO_OUTPUT;

to the whole thing, without singling out "-U8".  Or am I missing
some good reason why "--no-patch -U8" should not produce a patch,
while "--no-patch -p" and "-U8" should both should?
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