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Merge branch 'jn/maint-sequencer-fixes'

* jn/maint-sequencer-fixes:
  revert: stop creating and removing sequencer-old directory
  Revert "reset: Make reset remove the sequencer state"
  revert: do not remove state until sequence is finished
  revert: allow single-pick in the middle of cherry-pick sequence
  revert: pass around rev-list args in already-parsed form
  revert: allow cherry-pick --continue to commit before resuming
  revert: give --continue handling its own function
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2 parents ea4ef30 + d596118 commit b8fc5abd73e2e81c396844c09e8003de320709e5 @gitster gitster committed Dec 20, 2011
Showing with 252 additions and 126 deletions.
  1. +0 −2 branch.c
  2. +92 −48 builtin/revert.c
  3. +2 −8 sequencer.c
  4. +2 −10 sequencer.h
  5. +156 −6 t/t3510-cherry-pick-sequence.sh
  6. +0 −52 t/t7106-reset-sequence.sh
View
2 branch.c
@@ -3,7 +3,6 @@
#include "refs.h"
#include "remote.h"
#include "commit.h"
-#include "sequencer.h"
struct tracking {
struct refspec spec;
@@ -280,5 +279,4 @@ void remove_branch_state(void)
unlink(git_path("MERGE_MSG"));
unlink(git_path("MERGE_MODE"));
unlink(git_path("SQUASH_MSG"));
- remove_sequencer_state(0);
}
View
140 builtin/revert.c
@@ -60,13 +60,14 @@ struct replay_opts {
int allow_rerere_auto;
int mainline;
- int commit_argc;
- const char **commit_argv;
/* Merge strategy */
const char *strategy;
const char **xopts;
size_t xopts_nr, xopts_alloc;
+
+ /* Only used by REPLAY_NONE */
+ struct rev_info *revs;
};
#define GIT_REFLOG_ACTION "GIT_REFLOG_ACTION"
@@ -169,9 +170,9 @@ static void parse_args(int argc, const char **argv, struct replay_opts *opts)
die(_("program error"));
}
- opts->commit_argc = parse_options(argc, argv, NULL, options, usage_str,
- PARSE_OPT_KEEP_ARGV0 |
- PARSE_OPT_KEEP_UNKNOWN);
+ argc = parse_options(argc, argv, NULL, options, usage_str,
+ PARSE_OPT_KEEP_ARGV0 |
+ PARSE_OPT_KEEP_UNKNOWN);
/* Check for incompatible subcommands */
verify_opt_mutually_compatible(me,
@@ -213,17 +214,27 @@ static void parse_args(int argc, const char **argv, struct replay_opts *opts)
NULL);
}
- else if (opts->commit_argc < 2)
- usage_with_options(usage_str, options);
-
if (opts->allow_ff)
verify_opt_compatible(me, "--ff",
"--signoff", opts->signoff,
"--no-commit", opts->no_commit,
"-x", opts->record_origin,
"--edit", opts->edit,
NULL);
- opts->commit_argv = argv;
+
+ if (opts->subcommand != REPLAY_NONE) {
+ opts->revs = NULL;
+ } else {
+ opts->revs = xmalloc(sizeof(*opts->revs));
+ init_revisions(opts->revs, NULL);
+ opts->revs->no_walk = 1;
+ if (argc < 2)
+ usage_with_options(usage_str, options);
+ argc = setup_revisions(argc, argv, opts->revs, NULL);
+ }
+
+ if (argc > 1)
+ usage_with_options(usage_str, options);
}
struct commit_message {
@@ -631,23 +642,15 @@ static int do_pick_commit(struct commit *commit, struct replay_opts *opts)
return res;
}
-static void prepare_revs(struct rev_info *revs, struct replay_opts *opts)
+static void prepare_revs(struct replay_opts *opts)
{
- int argc;
-
- init_revisions(revs, NULL);
- revs->no_walk = 1;
if (opts->action != REVERT)
- revs->reverse = 1;
-
- argc = setup_revisions(opts->commit_argc, opts->commit_argv, revs, NULL);
- if (argc > 1)
- usage(*revert_or_cherry_pick_usage(opts));
+ opts->revs->reverse ^= 1;
- if (prepare_revision_walk(revs))
+ if (prepare_revision_walk(opts->revs))
die(_("revision walk setup failed"));
- if (!revs->commits)
+ if (!opts->revs->commits)
die(_("empty commit set passed"));
}
@@ -844,14 +847,13 @@ static void read_populate_opts(struct replay_opts **opts_ptr)
static void walk_revs_populate_todo(struct commit_list **todo_list,
struct replay_opts *opts)
{
- struct rev_info revs;
struct commit *commit;
struct commit_list **next;
- prepare_revs(&revs, opts);
+ prepare_revs(opts);
next = todo_list;
- while ((commit = get_revision(&revs)))
+ while ((commit = get_revision(opts->revs)))
next = commit_list_append(commit, next);
}
@@ -942,7 +944,7 @@ static int sequencer_rollback(struct replay_opts *opts)
}
if (reset_for_rollback(sha1))
goto fail;
- remove_sequencer_state(1);
+ remove_sequencer_state();
strbuf_release(&buf);
return 0;
fail:
@@ -1016,33 +1018,64 @@ static int pick_commits(struct commit_list *todo_list, struct replay_opts *opts)
for (cur = todo_list; cur; cur = cur->next) {
save_todo(cur, opts);
res = do_pick_commit(cur->item, opts);
- if (res) {
- if (!cur->next)
- /*
- * An error was encountered while
- * picking the last commit; the
- * sequencer state is useless now --
- * the user simply needs to resolve
- * the conflict and commit
- */
- remove_sequencer_state(0);
+ if (res)
return res;
- }
}
/*
* Sequence of picks finished successfully; cleanup by
* removing the .git/sequencer directory
*/
- remove_sequencer_state(1);
+ remove_sequencer_state();
return 0;
}
+static int continue_single_pick(void)
+{
+ const char *argv[] = { "commit", NULL };
+
+ if (!file_exists(git_path("CHERRY_PICK_HEAD")) &&
+ !file_exists(git_path("REVERT_HEAD")))
+ return error(_("no cherry-pick or revert in progress"));
+ return run_command_v_opt(argv, RUN_GIT_CMD);
+}
+
+static int sequencer_continue(struct replay_opts *opts)
+{
+ struct commit_list *todo_list = NULL;
+
+ if (!file_exists(git_path(SEQ_TODO_FILE)))
+ return continue_single_pick();
+ read_populate_opts(&opts);
+ read_populate_todo(&todo_list, opts);
+
+ /* Verify that the conflict has been resolved */
+ if (file_exists(git_path("CHERRY_PICK_HEAD")) ||
+ file_exists(git_path("REVERT_HEAD"))) {
+ int ret = continue_single_pick();
+ if (ret)
+ return ret;
+ }
+ if (index_differs_from("HEAD", 0))
+ return error_dirty_index(opts);
+ todo_list = todo_list->next;
+ return pick_commits(todo_list, opts);
+}
+
+static int single_pick(struct commit *cmit, struct replay_opts *opts)
+{
+ setenv(GIT_REFLOG_ACTION, action_name(opts), 0);
+ return do_pick_commit(cmit, opts);
+}
+
static int pick_revisions(struct replay_opts *opts)
{
struct commit_list *todo_list = NULL;
unsigned char sha1[20];
+ if (opts->subcommand == REPLAY_NONE)
+ assert(opts->revs);
+
read_and_refresh_cache(opts);
/*
@@ -1051,21 +1084,32 @@ static int pick_revisions(struct replay_opts *opts)
* one that is being continued
*/
if (opts->subcommand == REPLAY_REMOVE_STATE) {
- remove_sequencer_state(1);
+ remove_sequencer_state();
return 0;
}
if (opts->subcommand == REPLAY_ROLLBACK)
return sequencer_rollback(opts);
- if (opts->subcommand == REPLAY_CONTINUE) {
- if (!file_exists(git_path(SEQ_TODO_FILE)))
- return error(_("No %s in progress"), action_name(opts));
- read_populate_opts(&opts);
- read_populate_todo(&todo_list, opts);
-
- /* Verify that the conflict has been resolved */
- if (!index_differs_from("HEAD", 0))
- todo_list = todo_list->next;
- return pick_commits(todo_list, opts);
+ if (opts->subcommand == REPLAY_CONTINUE)
+ return sequencer_continue(opts);
+
+ /*
+ * If we were called as "git cherry-pick <commit>", just
+ * cherry-pick/revert it, set CHERRY_PICK_HEAD /
+ * REVERT_HEAD, and don't touch the sequencer state.
+ * This means it is possible to cherry-pick in the middle
+ * of a cherry-pick sequence.
+ */
+ if (opts->revs->cmdline.nr == 1 &&
+ opts->revs->cmdline.rev->whence == REV_CMD_REV &&
+ opts->revs->no_walk &&
+ !opts->revs->cmdline.rev->flags) {
+ struct commit *cmit;
+ if (prepare_revision_walk(opts->revs))
+ die(_("revision walk setup failed"));
+ cmit = get_revision(opts->revs);
+ if (!cmit || get_revision(opts->revs))
+ die("BUG: expected exactly one commit from walk");
+ return single_pick(cmit, opts);
}
/*
View
10 sequencer.c
@@ -3,17 +3,11 @@
#include "strbuf.h"
#include "dir.h"
-void remove_sequencer_state(int aggressive)
+void remove_sequencer_state(void)
{
struct strbuf seq_dir = STRBUF_INIT;
- struct strbuf seq_old_dir = STRBUF_INIT;
strbuf_addf(&seq_dir, "%s", git_path(SEQ_DIR));
- strbuf_addf(&seq_old_dir, "%s", git_path(SEQ_OLD_DIR));
- remove_dir_recursively(&seq_old_dir, 0);
- rename(git_path(SEQ_DIR), git_path(SEQ_OLD_DIR));
- if (aggressive)
- remove_dir_recursively(&seq_old_dir, 0);
+ remove_dir_recursively(&seq_dir, 0);
strbuf_release(&seq_dir);
- strbuf_release(&seq_old_dir);
}
View
12 sequencer.h
@@ -2,19 +2,11 @@
#define SEQUENCER_H
#define SEQ_DIR "sequencer"
-#define SEQ_OLD_DIR "sequencer-old"
#define SEQ_HEAD_FILE "sequencer/head"
#define SEQ_TODO_FILE "sequencer/todo"
#define SEQ_OPTS_FILE "sequencer/opts"
-/*
- * Removes SEQ_OLD_DIR and renames SEQ_DIR to SEQ_OLD_DIR, ignoring
- * any errors. Intended to be used by 'git reset'.
- *
- * With the aggressive flag, it additionally removes SEQ_OLD_DIR,
- * ignoring any errors. Inteded to be used by the sequencer's
- * '--quit' subcommand.
- */
-void remove_sequencer_state(int aggressive);
+/* Removes SEQ_DIR. */
+extern void remove_sequencer_state(void);
#endif
View
162 t/t3510-cherry-pick-sequence.sh
@@ -2,6 +2,7 @@
test_description='Test cherry-pick continuation features
+ + conflicting: rewrites unrelated to conflicting
+ yetanotherpick: rewrites foo to e
+ anotherpick: rewrites foo to d
+ picked: rewrites foo to c
@@ -27,6 +28,7 @@ test_cmp_rev () {
}
test_expect_success setup '
+ git config advice.detachedhead false
echo unrelated >unrelated &&
git add unrelated &&
test_commit initial foo a &&
@@ -35,8 +37,8 @@ test_expect_success setup '
test_commit picked foo c &&
test_commit anotherpick foo d &&
test_commit yetanotherpick foo e &&
- git config advice.detachedhead false
-
+ pristine_detach initial &&
+ test_commit conflicting unrelated
'
test_expect_success 'cherry-pick persists data on failure' '
@@ -48,6 +50,18 @@ test_expect_success 'cherry-pick persists data on failure' '
test_path_is_file .git/sequencer/opts
'
+test_expect_success 'cherry-pick mid-cherry-pick-sequence' '
+ pristine_detach initial &&
+ test_must_fail git cherry-pick base..anotherpick &&
+ test_cmp_rev picked CHERRY_PICK_HEAD &&
+ # "oops, I forgot that these patches rely on the change from base"
+ git checkout HEAD foo &&
+ git cherry-pick base &&
+ git cherry-pick picked &&
+ git cherry-pick --continue &&
+ git diff --exit-code anotherpick
+'
+
test_expect_success 'cherry-pick persists opts correctly' '
pristine_detach initial &&
test_must_fail git cherry-pick -s -m 1 --strategy=recursive -X patience -X ours base..anotherpick &&
@@ -189,10 +203,10 @@ test_expect_success '--abort refuses to clobber unrelated change, harder case' '
test_cmp_rev initial HEAD
'
-test_expect_success 'cherry-pick cleans up sequencer state when one commit is left' '
+test_expect_success 'cherry-pick still writes sequencer state when one commit is left' '
pristine_detach initial &&
test_must_fail git cherry-pick base..picked &&
- test_path_is_missing .git/sequencer &&
+ test_path_is_dir .git/sequencer &&
echo "resolved" >foo &&
git add foo &&
git commit &&
@@ -213,7 +227,7 @@ test_expect_success 'cherry-pick cleans up sequencer state when one commit is le
test_cmp expect actual
'
-test_expect_failure '--abort after last commit in sequence' '
+test_expect_success '--abort after last commit in sequence' '
pristine_detach initial &&
test_must_fail git cherry-pick base..picked &&
git cherry-pick --abort &&
@@ -243,7 +257,66 @@ test_expect_success '--continue complains when there are unresolved conflicts' '
test_must_fail git cherry-pick --continue
'
-test_expect_success '--continue continues after conflicts are resolved' '
+test_expect_success '--continue of single cherry-pick' '
+ pristine_detach initial &&
+ echo c >expect &&
+ test_must_fail git cherry-pick picked &&
+ echo c >foo &&
+ git add foo &&
+ git cherry-pick --continue &&
+
+ test_cmp expect foo &&
+ test_cmp_rev initial HEAD^ &&
+ git diff --exit-code HEAD &&
+ test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
+'
+
+test_expect_success '--continue of single revert' '
+ pristine_detach initial &&
+ echo resolved >expect &&
+ echo "Revert \"picked\"" >expect.msg &&
+ test_must_fail git revert picked &&
+ echo resolved >foo &&
+ git add foo &&
+ git cherry-pick --continue &&
+
+ git diff --exit-code HEAD &&
+ test_cmp expect foo &&
+ test_cmp_rev initial HEAD^ &&
+ git diff-tree -s --pretty=tformat:%s HEAD >msg &&
+ test_cmp expect.msg msg &&
+ test_must_fail git rev-parse --verify CHERRY_PICK_HEAD &&
+ test_must_fail git rev-parse --verify REVERT_HEAD
+'
+
+test_expect_success '--continue after resolving conflicts' '
+ pristine_detach initial &&
+ echo d >expect &&
+ cat >expect.log <<-\EOF &&
+ OBJID
+ :100644 100644 OBJID OBJID M foo
+ OBJID
+ :100644 100644 OBJID OBJID M foo
+ OBJID
+ :100644 100644 OBJID OBJID M unrelated
+ OBJID
+ :000000 100644 OBJID OBJID A foo
+ :000000 100644 OBJID OBJID A unrelated
+ EOF
+ test_must_fail git cherry-pick base..anotherpick &&
+ echo c >foo &&
+ git add foo &&
+ git cherry-pick --continue &&
+ {
+ git rev-list HEAD |
+ git diff-tree --root --stdin |
+ sed "s/$_x40/OBJID/g"
+ } >actual.log &&
+ test_cmp expect foo &&
+ test_cmp expect.log actual.log
+'
+
+test_expect_success '--continue after resolving conflicts and committing' '
pristine_detach initial &&
test_must_fail git cherry-pick base..anotherpick &&
echo "c" >foo &&
@@ -270,6 +343,29 @@ test_expect_success '--continue continues after conflicts are resolved' '
test_cmp expect actual
'
+test_expect_success '--continue asks for help after resolving patch to nil' '
+ pristine_detach conflicting &&
+ test_must_fail git cherry-pick initial..picked &&
+
+ test_cmp_rev unrelatedpick CHERRY_PICK_HEAD &&
+ git checkout HEAD -- unrelated &&
+ test_must_fail git cherry-pick --continue 2>msg &&
+ test_i18ngrep "The previous cherry-pick is now empty" msg
+'
+
+test_expect_success 'follow advice and skip nil patch' '
+ pristine_detach conflicting &&
+ test_must_fail git cherry-pick initial..picked &&
+
+ git checkout HEAD -- unrelated &&
+ test_must_fail git cherry-pick --continue &&
+ git reset &&
+ git cherry-pick --continue &&
+
+ git rev-list initial..HEAD >commits &&
+ test_line_count = 3 commits
+'
+
test_expect_success '--continue respects opts' '
pristine_detach initial &&
test_must_fail git cherry-pick -x base..anotherpick &&
@@ -288,6 +384,29 @@ test_expect_success '--continue respects opts' '
grep "cherry picked from" anotherpick_msg
'
+test_expect_success '--continue of single-pick respects -x' '
+ pristine_detach initial &&
+ test_must_fail git cherry-pick -x picked &&
+ echo c >foo &&
+ git add foo &&
+ git cherry-pick --continue &&
+ test_path_is_missing .git/sequencer &&
+ git cat-file commit HEAD >msg &&
+ grep "cherry picked from" msg
+'
+
+test_expect_success '--continue respects -x in first commit in multi-pick' '
+ pristine_detach initial &&
+ test_must_fail git cherry-pick -x picked anotherpick &&
+ echo c >foo &&
+ git add foo &&
+ git cherry-pick --continue &&
+ test_path_is_missing .git/sequencer &&
+ git cat-file commit HEAD^ >msg &&
+ picked=$(git rev-parse --verify picked) &&
+ grep "cherry picked from.*$picked" msg
+'
+
test_expect_success '--signoff is not automatically propagated to resolved conflict' '
pristine_detach initial &&
test_must_fail git cherry-pick --signoff base..anotherpick &&
@@ -306,6 +425,32 @@ test_expect_success '--signoff is not automatically propagated to resolved confl
grep "Signed-off-by:" anotherpick_msg
'
+test_expect_success '--signoff dropped for implicit commit of resolution, multi-pick case' '
+ pristine_detach initial &&
+ test_must_fail git cherry-pick -s picked anotherpick &&
+ echo c >foo &&
+ git add foo &&
+ git cherry-pick --continue &&
+
+ git diff --exit-code HEAD &&
+ test_cmp_rev initial HEAD^^ &&
+ git cat-file commit HEAD^ >msg &&
+ ! grep Signed-off-by: msg
+'
+
+test_expect_success 'sign-off needs to be reaffirmed after conflict resolution, single-pick case' '
+ pristine_detach initial &&
+ test_must_fail git cherry-pick -s picked &&
+ echo c >foo &&
+ git add foo &&
+ git cherry-pick --continue &&
+
+ git diff --exit-code HEAD &&
+ test_cmp_rev initial HEAD^ &&
+ git cat-file commit HEAD >msg &&
+ ! grep Signed-off-by: msg
+'
+
test_expect_success 'malformed instruction sheet 1' '
pristine_detach initial &&
test_must_fail git cherry-pick base..anotherpick &&
@@ -328,4 +473,9 @@ test_expect_success 'malformed instruction sheet 2' '
test_must_fail git cherry-pick --continue
'
+test_expect_success 'empty commit set' '
+ pristine_detach initial &&
+ test_expect_code 128 git cherry-pick base..base
+'
+
test_done
View
52 t/t7106-reset-sequence.sh
@@ -1,52 +0,0 @@
-#!/bin/sh
-
-test_description='Test interaction of reset --hard with sequencer
-
- + anotherpick: rewrites foo to d
- + picked: rewrites foo to c
- + unrelatedpick: rewrites unrelated to reallyunrelated
- + base: rewrites foo to b
- + initial: writes foo as a, unrelated as unrelated
-'
-
-. ./test-lib.sh
-
-pristine_detach () {
- git cherry-pick --quit &&
- git checkout -f "$1^0" &&
- git read-tree -u --reset HEAD &&
- git clean -d -f -f -q -x
-}
-
-test_expect_success setup '
- echo unrelated >unrelated &&
- git add unrelated &&
- test_commit initial foo a &&
- test_commit base foo b &&
- test_commit unrelatedpick unrelated reallyunrelated &&
- test_commit picked foo c &&
- test_commit anotherpick foo d &&
- git config advice.detachedhead false
-
-'
-
-test_expect_success 'reset --hard cleans up sequencer state, providing one-level undo' '
- pristine_detach initial &&
- test_must_fail git cherry-pick base..anotherpick &&
- test_path_is_dir .git/sequencer &&
- git reset --hard &&
- test_path_is_missing .git/sequencer &&
- test_path_is_dir .git/sequencer-old &&
- git reset --hard &&
- test_path_is_missing .git/sequencer-old
-'
-
-test_expect_success 'cherry-pick --abort does not leave sequencer-old dir' '
- pristine_detach initial &&
- test_must_fail git cherry-pick base..anotherpick &&
- git cherry-pick --abort &&
- test_path_is_missing .git/sequencer &&
- test_path_is_missing .git/sequencer-old
-'
-
-test_done

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