* [PATCH 2/2] notes: add notes.merge option to select default strategy
2015-07-31 19:21 [PATCH 0/2] add notes.merge configuration variable Jacob Keller
2015-07-31 19:21 ` [PATCH 1/2] notes: document cat_sort_uniq rewriteMode Jacob Keller
@ 2015-07-31 19:21 ` Jacob Keller
2015-07-31 21:12 ` Eric Sunshine
2015-07-31 20:00 ` [PATCH 0/2] add notes.merge configuration variable Junio C Hamano
2 siblings, 1 reply; 5+ messages in thread
From: Jacob Keller @ 2015-07-31 19:21 UTC (permalink / raw)
To: git; +Cc: Jacob Keller
From: Jacob Keller <jacob.keller@gmail.com>
Teach git-notes about a new configuration option "notes.merge" for
selecting the default notes merge strategy. Document the option in
config.txt and git-notes.txt
Add tests for the configuration option. Ensure that command line
--strategy option overrides the configured value. Ensure that -s can't
be passed with --commit or --abort. Ensure that --abort and --commit
can't be used together.
Signed-off-by: Jacob Keller <jacob.keller@gmail.com>
---
Documentation/config.txt | 7 ++++
Documentation/git-notes.txt | 30 +++++++++-----
builtin/notes.c | 75 +++++++++++++++++++++++++----------
notes-merge.h | 16 ++++----
t/t3309-notes-merge-auto-resolve.sh | 29 ++++++++++++++
t/t3310-notes-merge-manual-resolve.sh | 12 ++++++
6 files changed, 129 insertions(+), 40 deletions(-)
diff --git a/Documentation/config.txt b/Documentation/config.txt
index 3c1e4df09beb..85c15126e4ce 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -1937,6 +1937,13 @@ mergetool.writeToTemp::
mergetool.prompt::
Prompt before each invocation of the merge resolution program.
+notes.merge::
+ 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..d8944f5aec60 100644
--- a/Documentation/git-notes.txt
+++ b/Documentation/git-notes.txt
@@ -101,13 +101,13 @@ 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,
-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.
-When done, the user can either finalize the merge with
-'git notes merge --commit', or abort the merge with
-'git notes merge --abort'.
+conflicting notes (see the -s/--strategy option or notes.merge
+config option) 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. When done, the user
+can either finalize the merge with 'git notes merge --commit',
+or abort the merge with 'git notes merge --abort'.
remove::
Remove the notes for given objects (defaults to HEAD). When
@@ -181,10 +181,10 @@ OPTIONS
-s <strategy>::
--strategy=<strategy>::
When merging notes, resolve notes conflicts using the given
- strategy. The following strategies are recognized: "manual"
- (default), "ours", "theirs", "union" and "cat_sort_uniq".
- See the "NOTES MERGE STRATEGIES" section below for more
- information on each notes merge strategy.
+ strategy. Overrides "notes.merge". The following strategies are
+ recognized: `manual`, `ours`, `theirs`, `union` and
+ `cat_sort_uniq`. See the `NOTES MERGE STRATEGIES` section below
+ for more information on each notes merge strategy.
--commit::
Finalize an in-progress 'git notes merge'. Use this option
@@ -310,6 +310,14 @@ core.notesRef::
This setting can be overridden through the environment and
command line.
+notes.merge::
+ 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 88fdafb32bc0..7123311b563e 100644
--- a/builtin/notes.c
+++ b/builtin/notes.c
@@ -93,6 +93,9 @@ static const char * const git_notes_get_ref_usage[] = {
static const char note_template[] =
"\nWrite/edit the notes for the following object:\n";
+static int override_strategy = 0;
+static enum notes_merge_strategy strategy;
+
struct note_data {
int given;
int use_editor;
@@ -741,6 +744,36 @@ static int merge_commit(struct notes_merge_options *o)
return ret;
}
+static int parse_notes_strategy(const char *var, 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 error("Unknown notes merge strategy: %s", arg);
+ }
+
+ return 0;
+}
+
+static int parse_opt_strategy(const struct option *opt, const char *arg, int unset)
+{
+ enum notes_merge_strategy *strategy = opt->value;
+
+ /* let merge() know we overrode the configured strategy */
+ override_strategy = 1;
+
+ return parse_notes_strategy(NULL, arg, strategy);
+}
+
static int merge(int argc, const char **argv, const char *prefix)
{
struct strbuf remote_ref = STRBUF_INIT, msg = STRBUF_INIT;
@@ -749,14 +782,16 @@ static int merge(int argc, const char **argv, const char *prefix)
struct notes_merge_options o;
int do_merge = 0, do_commit = 0, do_abort = 0;
int verbosity = 0, result;
- const char *strategy = NULL;
struct option options[] = {
OPT_GROUP(N_("General options")),
OPT__VERBOSITY(&verbosity),
OPT_GROUP(N_("Merge options")),
- OPT_STRING('s', "strategy", &strategy, N_("strategy"),
- N_("resolve notes conflicts using the given strategy "
- "(manual/ours/theirs/union/cat_sort_uniq)")),
+ {
+ OPTION_CALLBACK, 's', "strategy", &strategy, N_("strategy"),
+ N_("resolve notes conflicts using the given strategy "
+ "(manual/ours/theirs/union/cat_sort_uniq)"),
+ PARSE_OPT_NONEG, parse_opt_strategy
+ },
OPT_GROUP(N_("Committing unmerged notes")),
{ OPTION_SET_INT, 0, "commit", &do_commit, NULL,
N_("finalize notes merge by committing unmerged notes"),
@@ -771,7 +806,7 @@ static int merge(int argc, const char **argv, const char *prefix)
argc = parse_options(argc, argv, prefix, options,
git_notes_merge_usage, 0);
- if (strategy || do_commit + do_abort == 0)
+ if (override_strategy || do_commit + do_abort == 0)
do_merge = 1;
if (do_merge + do_commit + do_abort != 1) {
error("cannot mix --commit, --abort or -s/--strategy");
@@ -799,22 +834,7 @@ static int merge(int argc, const char **argv, const char *prefix)
expand_notes_ref(&remote_ref);
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 {
- error("Unknown -s/--strategy: %s", strategy);
- usage_with_options(git_notes_merge_usage, options);
- }
- }
+ o.strategy = strategy;
t = init_notes_check("merge", NOTES_INIT_WRITABLE);
@@ -950,6 +970,17 @@ static int get_ref(int argc, const char **argv, const char *prefix)
return 0;
}
+static int git_notes_config(const char *var, const char *value, void *cb)
+{
+ if (!strcmp(var, "notes.merge")) {
+ if (!value)
+ return config_error_nonbool(var);
+ return parse_notes_strategy(var, value, &strategy);
+ }
+
+ return git_default_config(var, value, cb);
+}
+
int cmd_notes(int argc, const char **argv, const char *prefix)
{
int result;
@@ -960,7 +991,7 @@ int cmd_notes(int argc, const char **argv, const char *prefix)
OPT_END()
};
- git_config(git_default_config, NULL);
+ git_config(git_notes_config, NULL);
argc = parse_options(argc, argv, prefix, options, git_notes_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
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..a773b01b73db 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.merge="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.merge="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.merge="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 $commit_sha14
diff --git a/t/t3310-notes-merge-manual-resolve.sh b/t/t3310-notes-merge-manual-resolve.sh
index 195bb97f859d..d5572121da69 100755
--- a/t/t3310-notes-merge-manual-resolve.sh
+++ b/t/t3310-notes-merge-manual-resolve.sh
@@ -314,6 +314,18 @@ y and z notes on 1st commit
EOF
+test_expect_success 'do not allow mixing --commit and --abort' '
+ test_must_fail git notes merge --commit --abort
+'
+
+test_expect_success 'do not allow mixing --commit and --strategy' '
+ test_must_fail git notes merge --commit --strategy theirs
+'
+
+test_expect_success 'do not allow mixing --abort and --strategy' '
+ test_must_fail git notes merge --abort --strategy theirs
+'
+
test_expect_success 'finalize conflicting merge (z => m)' '
# Resolve conflicts and finalize merge
cat >.git/NOTES_MERGE_WORKTREE/$commit_sha1 <<EOF &&
--
2.5.0.482.gfcd5645
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