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Diffstat (limited to 'builtin/merge.c')
-rw-r--r--builtin/merge.c52
1 files changed, 41 insertions, 11 deletions
diff --git a/builtin/merge.c b/builtin/merge.c
index 42fff387e6..b4746ee55b 100644
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -195,7 +195,7 @@ static struct option builtin_merge_options[] = {
OPT_CALLBACK('X', "strategy-option", &xopts, "option=value",
"option for selected merge strategy", option_parse_x),
OPT_CALLBACK('m', "message", &merge_msg, "message",
- "message to be used for the merge commit (if any)",
+ "merge commit message (for a non-fast-forward merge)",
option_parse_message),
OPT__VERBOSITY(&verbosity),
OPT_BOOLEAN(0, "abort", &abort_current_merge,
@@ -582,7 +582,8 @@ static void write_tree_trivial(unsigned char *sha1)
die("git write-tree failed to write a tree");
}
-int try_merge_command(const char *strategy, struct commit_list *common,
+int try_merge_command(const char *strategy, size_t xopts_nr,
+ const char **xopts, struct commit_list *common,
const char *head_arg, struct commit_list *remotes)
{
const char **args;
@@ -680,7 +681,8 @@ static int try_merge_strategy(const char *strategy, struct commit_list *common,
rollback_lock_file(lock);
return clean ? 0 : 1;
} else {
- return try_merge_command(strategy, common, head_arg, remoteheads);
+ return try_merge_command(strategy, xopts_nr, xopts,
+ common, head_arg, remoteheads);
}
}
@@ -795,6 +797,32 @@ static void add_strategies(const char *string, unsigned attr)
}
+static void write_merge_msg(void)
+{
+ int fd = open(git_path("MERGE_MSG"), O_WRONLY | O_CREAT, 0666);
+ if (fd < 0)
+ die_errno("Could not open '%s' for writing",
+ git_path("MERGE_MSG"));
+ if (write_in_full(fd, merge_msg.buf, merge_msg.len) != merge_msg.len)
+ die_errno("Could not write to '%s'", git_path("MERGE_MSG"));
+ close(fd);
+}
+
+static void read_merge_msg(void)
+{
+ strbuf_reset(&merge_msg);
+ if (strbuf_read_file(&merge_msg, git_path("MERGE_MSG"), 0) < 0)
+ die_errno("Could not read from '%s'", git_path("MERGE_MSG"));
+}
+
+static void run_prepare_commit_msg(void)
+{
+ write_merge_msg();
+ run_hook(get_index_file(), "prepare-commit-msg",
+ git_path("MERGE_MSG"), "merge", NULL, NULL);
+ read_merge_msg();
+}
+
static int merge_trivial(void)
{
unsigned char result_tree[20], result_commit[20];
@@ -806,6 +834,7 @@ static int merge_trivial(void)
parent->next = xmalloc(sizeof(*parent->next));
parent->next->item = remoteheads->item;
parent->next->next = NULL;
+ run_prepare_commit_msg();
commit_tree(merge_msg.buf, result_tree, parent, result_commit, NULL);
finish(result_commit, "In-index merge");
drop_save();
@@ -835,6 +864,7 @@ static int finish_automerge(struct commit_list *common,
}
free_commit_list(remoteheads);
strbuf_addch(&merge_msg, '\n');
+ run_prepare_commit_msg();
commit_tree(merge_msg.buf, result_tree, parents, result_commit, NULL);
strbuf_addf(&buf, "Merge made by %s.", wt_strategy);
finish(result_commit, buf.buf);
@@ -969,6 +999,13 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
else
die("You have not concluded your merge (MERGE_HEAD exists).");
}
+ if (file_exists(git_path("CHERRY_PICK_HEAD"))) {
+ if (advice_resolve_conflict)
+ die("You have not concluded your cherry-pick (CHERRY_PICK_HEAD exists).\n"
+ "Please, commit your changes before you can merge.");
+ else
+ die("You have not concluded your cherry-pick (CHERRY_PICK_HEAD exists).");
+ }
resolve_undo_clear();
if (verbosity < 0)
@@ -1316,14 +1353,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
die_errno("Could not write to '%s'", git_path("MERGE_HEAD"));
close(fd);
strbuf_addch(&merge_msg, '\n');
- fd = open(git_path("MERGE_MSG"), O_WRONLY | O_CREAT, 0666);
- if (fd < 0)
- die_errno("Could not open '%s' for writing",
- git_path("MERGE_MSG"));
- if (write_in_full(fd, merge_msg.buf, merge_msg.len) !=
- merge_msg.len)
- die_errno("Could not write to '%s'", git_path("MERGE_MSG"));
- close(fd);
+ write_merge_msg();
fd = open(git_path("MERGE_MODE"), O_WRONLY | O_CREAT | O_TRUNC, 0666);
if (fd < 0)
die_errno("Could not open '%s' for writing",