From: ZheNing Hu <adlternative@xxxxxxxxx> In https://lore.kernel.org/git/YBx5rmVsg1LJhSKN@nand.local/, Taylor Blau proposing 'git format-patch --cover-letter --range-diff' may mistakenly place upstream commit in the range-diff output. Teach `format-patch` pass `--right-only` to range-diff, maybe can avoid this kind of mistake. Because `git rebase --apply` will internally call `git format-patch -k --stdout --full-index --cherry-pick --right-only --src-prefix=a/ --dst-prefix=b/ --no-renames --no-cover-letter --pretty=mboxrd --topo-order --no-base`, In order to avoid the ambiguity of `--right-only`, users can call `format-patch --range-diff --only-right` instead of `--right-only` to only emit output related to the second range. Signed-off-by: ZheNing Hu <adlternative@xxxxxxxxx> --- [GSOC][RFC] format-patch: pass --right-only to range-diff Transfer parameters are relatively simple. But because I can' t reproduce the situation, There's no big difference between adding ---only-right and not adding ---only-right. So I haven't written the test files for the time being. I may need to ask reviewers opinion first. this want to fix #876 Thanks. Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-898%2Fadlternative%2Fformat-patch-range-diff-right-only-v1 Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-898/adlternative/format-patch-range-diff-right-only-v1 Pull-Request: https://github.com/gitgitgadget/git/pull/898 Documentation/git-format-patch.txt | 5 ++++- builtin/log.c | 15 ++++++++++----- 2 files changed, 14 insertions(+), 6 deletions(-) diff --git a/Documentation/git-format-patch.txt b/Documentation/git-format-patch.txt index 3e49bf221087..5dae34c3090b 100644 --- a/Documentation/git-format-patch.txt +++ b/Documentation/git-format-patch.txt @@ -27,7 +27,7 @@ SYNOPSIS [--[no-]encode-email-headers] [--no-notes | --notes[=<ref>]] [--interdiff=<previous>] - [--range-diff=<previous> [--creation-factor=<percent>]] + [--range-diff=<previous> [--creation-factor=<percent>] [--right-only]] [--filename-max-length=<n>] [--progress] [<common diff options>] @@ -301,6 +301,9 @@ material (this may change in the future). creation/deletion cost fudge factor. See linkgit:git-range-diff[1]) for details. +--only-right: + Used with `--range-diff`, only emit output related to the second range. + --notes[=<ref>]:: --no-notes:: Append the notes (see linkgit:git-notes[1]) for the commit diff --git a/builtin/log.c b/builtin/log.c index f67b67d80ed1..5d2f39fd19a7 100644 --- a/builtin/log.c +++ b/builtin/log.c @@ -1153,7 +1153,7 @@ static void make_cover_letter(struct rev_info *rev, int use_separate_file, struct commit *origin, int nr, struct commit **list, const char *branch_name, - int quiet) + int quiet, int right_only) { const char *committer; struct shortlog log; @@ -1228,7 +1228,8 @@ static void make_cover_letter(struct rev_info *rev, int use_separate_file, .creation_factor = rev->creation_factor, .dual_color = 1, .diffopt = &opts, - .other_arg = &other_arg + .other_arg = &other_arg, + .right_only = right_only }; diff_setup(&opts); @@ -1732,7 +1733,7 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) struct strbuf rdiff2 = STRBUF_INIT; struct strbuf rdiff_title = STRBUF_INIT; int creation_factor = -1; - + int right_only = 0; const struct option builtin_format_patch_options[] = { OPT_CALLBACK_F('n', "numbered", &numbered, NULL, N_("use [PATCH n/m] even with a single patch"), @@ -1814,6 +1815,8 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) parse_opt_object_name), OPT_STRING(0, "range-diff", &rdiff_prev, N_("refspec"), N_("show changes against <refspec> in cover letter or single patch")), + OPT_BOOL(0, "only-right", &right_only, + N_("only emit output related to the second range")), OPT_INTEGER(0, "creation-factor", &creation_factor, N_("percentage by which creation is weighted")), OPT_END() @@ -2087,7 +2090,8 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) creation_factor = RANGE_DIFF_CREATION_FACTOR_DEFAULT; else if (!rdiff_prev) die(_("--creation-factor requires --range-diff")); - + if (right_only && !rdiff_prev) + die(_("--right_only requires --range-diff")); if (rdiff_prev) { if (!cover_letter && total != 1) die(_("--range-diff requires --cover-letter or single patch")); @@ -2134,7 +2138,8 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) if (thread) gen_message_id(&rev, "cover"); make_cover_letter(&rev, !!output_directory, - origin, nr, list, branch_name, quiet); + origin, nr, list, branch_name, quiet, + right_only); print_bases(&bases, rev.diffopt.file); print_signature(rev.diffopt.file); total++; base-commit: be7935ed8bff19f481b033d0d242c5d5f239ed50 -- gitgitgadget
