From d8981c3f885ceaddfec0e545b0f995b96e5ec58f Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Fri, 30 Nov 2018 13:27:11 +0900 Subject: [PATCH] format-patch: do not let its diff-options affect --range-diff Stop leaking how the primary output of format-patch is customized to the range-diff machinery and instead let the latter use its own "reasonable default", in order to correct the breakage introduced by a5170794 ("Merge branch 'ab/range-diff-no-patch'", 2018-11-18) on the 'master' front. "git format-patch --range-diff..." without any weird diff option started to include the "range-diff --stat" output, which is rather useless right now, that made the whole thing unusable and this is probably the least disruptive way to whip the codebase into a shippable shape. We may want to later make the range-diff driven by format-patch more configurable, but that would have to wait until we have a good design. Signed-off-by: Junio C Hamano --- Documentation/git-format-patch.txt | 5 +++++ builtin/log.c | 2 +- log-tree.c | 2 +- range-diff.c | 6 +++++- range-diff.h | 5 +++++ 5 files changed, 17 insertions(+), 3 deletions(-) diff --git a/Documentation/git-format-patch.txt b/Documentation/git-format-patch.txt index aba4c5febe..27304428a1 100644 --- a/Documentation/git-format-patch.txt +++ b/Documentation/git-format-patch.txt @@ -250,6 +250,11 @@ feeding the result to `git send-email`. feature/v2`), or a revision range if the two versions of the series are disjoint (for example `git format-patch --cover-letter --range-diff=feature/v1~3..feature/v1 -3 feature/v2`). ++ +Note that diff options passed to the command affect how the primary +product of `format-patch` is generated, and they are not passed to +the underlying `range-diff` machinery used to generate the cover-letter +material (this may change in the future). --creation-factor=:: Used with `--range-diff`, tweak the heuristic which matches up commits diff --git a/builtin/log.c b/builtin/log.c index 0fe6f9ba1e..5ac18e2848 100644 --- a/builtin/log.c +++ b/builtin/log.c @@ -1096,7 +1096,7 @@ static void make_cover_letter(struct rev_info *rev, int use_stdout, if (rev->rdiff1) { fprintf_ln(rev->diffopt.file, "%s", rev->rdiff_title); show_range_diff(rev->rdiff1, rev->rdiff2, - rev->creation_factor, 1, &rev->diffopt); + rev->creation_factor, 1, NULL); } } diff --git a/log-tree.c b/log-tree.c index 7a83e99250..b243779a0b 100644 --- a/log-tree.c +++ b/log-tree.c @@ -762,7 +762,7 @@ void show_log(struct rev_info *opt) next_commentary_block(opt, NULL); fprintf_ln(opt->diffopt.file, "%s", opt->rdiff_title); show_range_diff(opt->rdiff1, opt->rdiff2, - opt->creation_factor, 1, &opt->diffopt); + opt->creation_factor, 1, NULL); memcpy(&diff_queued_diff, &dq, sizeof(diff_queued_diff)); } diff --git a/range-diff.c b/range-diff.c index 767af8c5bb..48b0e1b4ce 100644 --- a/range-diff.c +++ b/range-diff.c @@ -460,7 +460,11 @@ int show_range_diff(const char *range1, const char *range2, struct diff_options opts; struct strbuf indent = STRBUF_INIT; - memcpy(&opts, diffopt, sizeof(opts)); + if (diffopt) + memcpy(&opts, diffopt, sizeof(opts)); + else + diff_setup(&opts); + if (!opts.output_format) opts.output_format = DIFF_FORMAT_PATCH; opts.flags.suppress_diff_headers = 1; diff --git a/range-diff.h b/range-diff.h index 190593f0c7..08a50b6e98 100644 --- a/range-diff.h +++ b/range-diff.h @@ -5,6 +5,11 @@ #define RANGE_DIFF_CREATION_FACTOR_DEFAULT 60 +/* + * Compare series of commmits in RANGE1 and RANGE2, and emit to the + * standard output. NULL can be passed to DIFFOPT to use the built-in + * default. + */ int show_range_diff(const char *range1, const char *range2, int creation_factor, int dual_color, struct diff_options *diffopt); -- 2.39.2