Merge branch 'js/rebase-stat-unrelated-fix'
"git rebase --stat" to transplant a piece of history onto a totally
unrelated history were not working before and silently showed wrong
result. With the recent reimplementation in C, it started to instead
die with an error message, as the original logic was not prepared
to cope with this case. This has now been fixed.
* js/rebase-stat-unrelated-fix:
rebase --stat: fix when rebasing to an unrelated history
diff --git a/Documentation/git-format-patch.txt b/Documentation/git-format-patch.txt
index aba4c5f..2730442 100644
--- a/Documentation/git-format-patch.txt
+++ b/Documentation/git-format-patch.txt
@@ -250,6 +250,11 @@
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=<percent>::
Used with `--range-diff`, tweak the heuristic which matches up commits
diff --git a/builtin/log.c b/builtin/log.c
index 0fe6f9b..5ac18e2 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -1096,7 +1096,7 @@
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/builtin/rebase.c b/builtin/rebase.c
index 1c6f817..c87da41 100644
--- a/builtin/rebase.c
+++ b/builtin/rebase.c
@@ -776,6 +776,23 @@
exit(1);
}
+static void set_reflog_action(struct rebase_options *options)
+{
+ const char *env;
+ struct strbuf buf = STRBUF_INIT;
+
+ if (!is_interactive(options))
+ return;
+
+ env = getenv(GIT_REFLOG_ACTION_ENVIRONMENT);
+ if (env && strcmp("rebase", env))
+ return; /* only override it if it is "rebase" */
+
+ strbuf_addf(&buf, "rebase -i (%s)", options->action);
+ setenv(GIT_REFLOG_ACTION_ENVIRONMENT, buf.buf, 1);
+ strbuf_release(&buf);
+}
+
int cmd_rebase(int argc, const char **argv, const char *prefix)
{
struct rebase_options options = {
@@ -978,6 +995,7 @@
if (action != NO_ACTION && !in_progress)
die(_("No rebase in progress?"));
+ setenv(GIT_REFLOG_ACTION_ENVIRONMENT, "rebase", 0);
if (action == ACTION_EDIT_TODO && !is_interactive(&options))
die(_("The --edit-todo action can only be used during "
@@ -990,6 +1008,7 @@
int fd;
options.action = "continue";
+ set_reflog_action(&options);
/* Sanity check */
if (get_oid("HEAD", &head))
@@ -1018,6 +1037,7 @@
struct string_list merge_rr = STRING_LIST_INIT_DUP;
options.action = "skip";
+ set_reflog_action(&options);
rerere_clear(&merge_rr);
string_list_clear(&merge_rr, 1);
@@ -1033,6 +1053,7 @@
case ACTION_ABORT: {
struct string_list merge_rr = STRING_LIST_INIT_DUP;
options.action = "abort";
+ set_reflog_action(&options);
rerere_clear(&merge_rr);
string_list_clear(&merge_rr, 1);
@@ -1440,11 +1461,12 @@
}
strbuf_reset(&buf);
- strbuf_addf(&buf, "rebase: checkout %s",
+ strbuf_addf(&buf, "%s: checkout %s",
+ getenv(GIT_REFLOG_ACTION_ENVIRONMENT),
options.switch_to);
if (reset_head(&oid, "checkout",
options.head_name, 0,
- NULL, NULL) < 0) {
+ NULL, buf.buf) < 0) {
ret = !!error(_("could not switch to "
"%s"),
options.switch_to);
@@ -1514,7 +1536,8 @@
printf(_("First, rewinding head to replay your work on top of "
"it...\n"));
- strbuf_addf(&msg, "rebase: checkout %s", options.onto_name);
+ strbuf_addf(&msg, "%s: checkout %s",
+ getenv(GIT_REFLOG_ACTION_ENVIRONMENT), options.onto_name);
if (reset_head(&options.onto->object.oid, "checkout", NULL,
RESET_HEAD_DETACH, NULL, msg.buf))
die(_("Could not detach HEAD"));
diff --git a/log-tree.c b/log-tree.c
index 7a83e99..b243779 100644
--- a/log-tree.c
+++ b/log-tree.c
@@ -762,7 +762,7 @@
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 767af8c..48b0e1b 100644
--- a/range-diff.c
+++ b/range-diff.c
@@ -460,7 +460,11 @@
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 190593f..08a50b6 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);
diff --git a/t/t3406-rebase-message.sh b/t/t3406-rebase-message.sh
index c2c9950..f64b130 100755
--- a/t/t3406-rebase-message.sh
+++ b/t/t3406-rebase-message.sh
@@ -91,6 +91,32 @@
test_i18ngrep "Invalid whitespace option" err
'
+test_expect_success 'GIT_REFLOG_ACTION' '
+ git checkout start &&
+ test_commit reflog-onto &&
+ git checkout -b reflog-topic start &&
+ test_commit reflog-to-rebase &&
+
+ git rebase reflog-onto &&
+ git log -g --format=%gs -3 >actual &&
+ cat >expect <<-\EOF &&
+ rebase finished: returning to refs/heads/reflog-topic
+ rebase: reflog-to-rebase
+ rebase: checkout reflog-onto
+ EOF
+ test_cmp expect actual &&
+
+ git checkout -b reflog-prefix reflog-to-rebase &&
+ GIT_REFLOG_ACTION=change-the-reflog git rebase reflog-onto &&
+ git log -g --format=%gs -3 >actual &&
+ cat >expect <<-\EOF &&
+ rebase finished: returning to refs/heads/reflog-prefix
+ change-the-reflog: reflog-to-rebase
+ change-the-reflog: checkout reflog-onto
+ EOF
+ test_cmp expect actual
+'
+
test_expect_success 'rebase -i onto unrelated history' '
git init unrelated &&
test_commit -C unrelated 1 &&
