From: Jacob Keller <jacob.keller@xxxxxxxxx>
Teach git-notes about "notes.mergestrategy" to select a general strategy
for all notes merges. This enables a user to always get expected merge
strategy such as "cat_sort_uniq" without having to pass the "-s" option
manually.
Signed-off-by: Jacob Keller <jacob.keller@xxxxxxxxx>
---
Documentation/config.txt | 7 ++++++
Documentation/git-notes.txt | 14 ++++++++++-
builtin/notes.c | 49 ++++++++++++++++++++++++++++---------
notes-merge.h | 16 ++++++------
t/t3309-notes-merge-auto-resolve.sh | 29 ++++++++++++++++++++++
5 files changed, 96 insertions(+), 19 deletions(-)
diff --git a/Documentation/config.txt b/Documentation/config.txt
index de67ad1fdedf..5e3e03459de7 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -1919,6 +1919,13 @@ mergetool.writeToTemp::
mergetool.prompt::
Prompt before each invocation of the merge resolution program.
+notes.mergestrategy::
+ Which merge strategy to choose by default when resolving notes
+ conflicts. Must be one of `manual`, `ours`, `theirs`, `union`,
+ or `cat_sort_uniq`. Defaults to `manual`. See "NOTES MERGE
+ STRATEGIES" section of linkgit:git-notes[1] for more information
+ on each strategy.
+
notes.displayRef::
The (fully qualified) refname from which to show notes when
showing commit messages. The value of this variable can be set
diff --git a/Documentation/git-notes.txt b/Documentation/git-notes.txt
index 674682b34b83..89c8829a0543 100644
--- a/Documentation/git-notes.txt
+++ b/Documentation/git-notes.txt
@@ -101,7 +101,7 @@ merge::
any) into the current notes ref (called "local").
+
If conflicts arise and a strategy for automatically resolving
-conflicting notes (see the -s/--strategy option) is not given,
+conflicting notes (see the "NOTES MERGE STRATEGIES" section) is not given,
the "manual" resolver is used. This resolver checks out the
conflicting notes in a special worktree (`.git/NOTES_MERGE_WORKTREE`),
and instructs the user to manually resolve the conflicts there.
@@ -183,6 +183,7 @@ OPTIONS
When merging notes, resolve notes conflicts using the given
strategy. The following strategies are recognized: "manual"
(default), "ours", "theirs", "union" and "cat_sort_uniq".
+ This option overrides the "notes.mergestrategy" configuration setting.
See the "NOTES MERGE STRATEGIES" section below for more
information on each notes merge strategy.
@@ -247,6 +248,9 @@ When done, the user can either finalize the merge with
'git notes merge --commit', or abort the merge with
'git notes merge --abort'.
+Users may select an automated merge strategy from among the following using
+either -s/--strategy option or configuring notes.mergestrategy accordingly:
+
"ours" automatically resolves conflicting notes in favor of the local
version (i.e. the current notes ref).
@@ -310,6 +314,14 @@ core.notesRef::
This setting can be overridden through the environment and
command line.
+notes.mergestrategy::
+ Which merge strategy to choose by default when resolving notes
+ conflicts. Must be one of `manual`, `ours`, `theirs`, `union`,
+ or `cat_sort_uniq`. Defaults to `manual`. See "NOTES MERGE
+ STRATEGIES" section above for more information on each strategy.
++
+This setting can be overridden by passing the `--strategy` option.
+
notes.displayRef::
Which ref (or refs, if a glob or specified more than once), in
addition to the default set by `core.notesRef` or
diff --git a/builtin/notes.c b/builtin/notes.c
index 042348082709..d65134f89b40 100644
--- a/builtin/notes.c
+++ b/builtin/notes.c
@@ -738,6 +738,41 @@ static int merge_commit(struct notes_merge_options *o)
return ret;
}
+static int parse_notes_strategy(const char *arg, enum notes_merge_strategy *strategy)
+{
+ if (!strcmp(arg, "manual"))
+ *strategy = NOTES_MERGE_RESOLVE_MANUAL;
+ else if (!strcmp(arg, "ours"))
+ *strategy = NOTES_MERGE_RESOLVE_OURS;
+ else if (!strcmp(arg, "theirs"))
+ *strategy = NOTES_MERGE_RESOLVE_THEIRS;
+ else if (!strcmp(arg, "union"))
+ *strategy = NOTES_MERGE_RESOLVE_UNION;
+ else if (!strcmp(arg, "cat_sort_uniq"))
+ *strategy = NOTES_MERGE_RESOLVE_CAT_SORT_UNIQ;
+ else
+ return -1;
+
+ return 0;
+}
+
+static int git_config_get_notes_strategy(const char *key,
+ enum notes_merge_strategy *strategy)
+{
+ const char *value = NULL;
+
+ git_config_get_string_const(key, &value);
+
+ if (value) {
+ if (parse_notes_strategy(value, strategy))
+ git_die_config(key, "unknown notes merge strategy '%s'", value);
+ else
+ return 0;
+ }
+
+ return 1;
+}
+
static int merge(int argc, const char **argv, const char *prefix)
{
struct strbuf remote_ref = STRBUF_INIT, msg = STRBUF_INIT;
@@ -797,20 +832,12 @@ static int merge(int argc, const char **argv, const char *prefix)
o.remote_ref = remote_ref.buf;
if (strategy) {
- if (!strcmp(strategy, "manual"))
- o.strategy = NOTES_MERGE_RESOLVE_MANUAL;
- else if (!strcmp(strategy, "ours"))
- o.strategy = NOTES_MERGE_RESOLVE_OURS;
- else if (!strcmp(strategy, "theirs"))
- o.strategy = NOTES_MERGE_RESOLVE_THEIRS;
- else if (!strcmp(strategy, "union"))
- o.strategy = NOTES_MERGE_RESOLVE_UNION;
- else if (!strcmp(strategy, "cat_sort_uniq"))
- o.strategy = NOTES_MERGE_RESOLVE_CAT_SORT_UNIQ;
- else {
+ if (parse_notes_strategy(strategy, &o.strategy)) {
error("Unknown -s/--strategy: %s", strategy);
usage_with_options(git_notes_merge_usage, options);
}
+ } else {
+ git_config_get_notes_strategy("notes.mergestrategy", &o.strategy);
}
t = init_notes_check("merge");
diff --git a/notes-merge.h b/notes-merge.h
index 1d01f6aacf54..bda8c0c8d348 100644
--- a/notes-merge.h
+++ b/notes-merge.h
@@ -8,18 +8,20 @@ enum notes_merge_verbosity {
NOTES_MERGE_VERBOSITY_MAX = 5
};
+enum notes_merge_strategy {
+ NOTES_MERGE_RESOLVE_MANUAL = 0,
+ NOTES_MERGE_RESOLVE_OURS,
+ NOTES_MERGE_RESOLVE_THEIRS,
+ NOTES_MERGE_RESOLVE_UNION,
+ NOTES_MERGE_RESOLVE_CAT_SORT_UNIQ
+};
+
struct notes_merge_options {
const char *local_ref;
const char *remote_ref;
struct strbuf commit_msg;
int verbosity;
- enum {
- NOTES_MERGE_RESOLVE_MANUAL = 0,
- NOTES_MERGE_RESOLVE_OURS,
- NOTES_MERGE_RESOLVE_THEIRS,
- NOTES_MERGE_RESOLVE_UNION,
- NOTES_MERGE_RESOLVE_CAT_SORT_UNIQ
- } strategy;
+ enum notes_merge_strategy strategy;
unsigned has_worktree:1;
};
diff --git a/t/t3309-notes-merge-auto-resolve.sh b/t/t3309-notes-merge-auto-resolve.sh
index 461fd84755d7..476b9f5306f1 100755
--- a/t/t3309-notes-merge-auto-resolve.sh
+++ b/t/t3309-notes-merge-auto-resolve.sh
@@ -298,6 +298,13 @@ test_expect_success 'merge z into y with invalid strategy => Fail/No changes' '
verify_notes y y
'
+test_expect_success 'merge z into y with invalid configuration option => Fail/No changes' '
+ git config core.notesRef refs/notes/y &&
+ test_must_fail git -c notes.mergestrategy="foo" notes merge z &&
+ # Verify no changes (y)
+ verify_notes y y
+'
+
cat <<EOF | sort >expect_notes_ours
68b8630d25516028bed862719855b3d6768d7833 $commit_sha15
5de7ea7ad4f47e7ff91989fb82234634730f75df $commit_sha14
@@ -365,6 +372,17 @@ test_expect_success 'reset to pre-merge state (y)' '
verify_notes y y
'
+test_expect_success 'merge z into y with "ours" configuration option => Non-conflicting 3-way merge' '
+ git -c notes.mergestrategy="ours" notes merge z &&
+ verify_notes y ours
+'
+
+test_expect_success 'reset to pre-merge state (y)' '
+ git update-ref refs/notes/y refs/notes/y^1 &&
+ # Verify pre-merge state
+ verify_notes y y
+'
+
cat <<EOF | sort >expect_notes_theirs
9b4b2c61f0615412da3c10f98ff85b57c04ec765 $commit_sha15
5de7ea7ad4f47e7ff91989fb82234634730f75df $commit_sha14
@@ -432,6 +450,17 @@ test_expect_success 'reset to pre-merge state (y)' '
verify_notes y y
'
+test_expect_success 'merge z into y with "theirs" strategy overriding configuration option "ours" => Non-conflicting 3-way merge' '
+ git -c notes.mergestrategy="ours" notes merge --strategy=theirs z &&
+ verify_notes y theirs
+'
+
+test_expect_success 'reset to pre-merge state (y)' '
+ git update-ref refs/notes/y refs/notes/y^1 &&
+ # Verify pre-merge state
+ verify_notes y y
+'
+
cat <<EOF | sort >expect_notes_union
7c4e546efd0fe939f876beb262ece02797880b54 $commit_sha15
5de7ea7ad4f47e7ff91989fb82234634730f75df $commit_sha14
--
2.5.0.280.g4aaba03
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