Hi Denton

Thanks for doing this, I think it looks ok but it would be better to make these changes earlier in the series so they come before what is now patch 3

Best Wishes

Phillip

On 07/03/2019 09:58, Denton Liu wrote:
When get_cleanup_mode was provided with an invalid cleanup_arg, it used
to die. Warn user and fallback to default behaviour if an invalid
cleanup_arg is given.

Signed-off-by: Denton Liu <liu.den...@gmail.com>
---
  builtin/commit.c |  2 +-
  builtin/merge.c  |  4 ++--
  builtin/revert.c |  2 +-
  sequencer.c      | 10 +++++++---
  sequencer.h      |  2 +-
  5 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/builtin/commit.c b/builtin/commit.c
index 43291d79bd..0072a5817a 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -1167,7 +1167,7 @@ static int parse_and_validate_options(int argc, const 
char *argv[],
                die(_("Only one of --include/--only/--all/--interactive/--patch can 
be used."));
        if (argc == 0 && (also || (only && !amend && !allow_empty)))
                die(_("No paths with --include/--only does not make sense."));
-       cleanup_mode = get_cleanup_mode(cleanup_arg, use_editor);
+       cleanup_mode = get_cleanup_mode(cleanup_arg, use_editor, 1);
handle_untracked_files_arg(s); diff --git a/builtin/merge.c b/builtin/merge.c
index d4217ebcf5..3b597ec540 100644
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -916,7 +916,7 @@ static int suggest_conflicts(void)
         * Thus, we will get the cleanup mode which is returned when we _are_ 
using
         * an editor.
         */
-       append_conflicts_hint(&msgbuf, get_cleanup_mode(cleanup_arg, 1));
+       append_conflicts_hint(&msgbuf, get_cleanup_mode(cleanup_arg, 1, 1));
        fputs(msgbuf.buf, fp);
        strbuf_release(&msgbuf);
        fclose(fp);
@@ -1424,7 +1424,7 @@ int cmd_merge(int argc, const char **argv, const char 
*prefix)
        if (option_edit < 0)
                option_edit = default_edit_option();
- cleanup_mode = get_cleanup_mode(cleanup_arg, 0 < option_edit);
+       cleanup_mode = get_cleanup_mode(cleanup_arg, 0 < option_edit, 1);
if (!use_strategies) {
                if (!remoteheads)
diff --git a/builtin/revert.c b/builtin/revert.c
index fe18036be7..a96f2ecd8a 100644
--- a/builtin/revert.c
+++ b/builtin/revert.c
@@ -139,7 +139,7 @@ static int run_sequencer(int argc, const char **argv, 
struct replay_opts *opts)
                opts->allow_empty = 1;
if (cleanup_arg)
-               opts->default_msg_cleanup = get_cleanup_mode(cleanup_arg, 1);
+               opts->default_msg_cleanup = get_cleanup_mode(cleanup_arg, 1, 1);
/* Check for incompatible command line arguments */
        if (cmd) {
diff --git a/sequencer.c b/sequencer.c
index 5c04bae7ac..7d18c55223 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -170,7 +170,7 @@ static int git_sequencer_config(const char *k, const char 
*v, void *cb)
                if (status)
                        return status;
- opts->default_msg_cleanup = get_cleanup_mode(s, !is_rebase_i(opts));
+               opts->default_msg_cleanup = get_cleanup_mode(s, 
!is_rebase_i(opts), 0);
free((char *)s);
                return status;
@@ -488,7 +488,7 @@ static int fast_forward_to(const struct object_id *to, 
const struct object_id *f
  }
enum commit_msg_cleanup_mode get_cleanup_mode(const char *cleanup_arg,
-       int use_editor)
+       int use_editor, int die_on_error)
  {
        if (!cleanup_arg || !strcmp(cleanup_arg, "default"))
                return use_editor ? COMMIT_MSG_CLEANUP_ALL :
@@ -502,7 +502,11 @@ enum commit_msg_cleanup_mode get_cleanup_mode(const char 
*cleanup_arg,
        else if (!strcmp(cleanup_arg, "scissors"))
                return use_editor ? COMMIT_MSG_CLEANUP_SCISSORS :
                                    COMMIT_MSG_CLEANUP_SPACE;
-       else
+       else if (!die_on_error) {
+               warning(_("Invalid cleanup mode %s, falling back to default"), 
cleanup_arg);
+               return use_editor ? COMMIT_MSG_CLEANUP_ALL :
+                                   COMMIT_MSG_CLEANUP_SPACE;
+       } else
                die(_("Invalid cleanup mode %s"), cleanup_arg);
  }
diff --git a/sequencer.h b/sequencer.h
index aa99503dd7..c4c80051ea 100644
--- a/sequencer.h
+++ b/sequencer.h
@@ -94,7 +94,7 @@ void append_signoff(struct strbuf *msgbuf, int ignore_footer, 
unsigned flag);
  void append_conflicts_hint(struct strbuf *msgbuf,
                enum commit_msg_cleanup_mode cleanup_mode);
  enum commit_msg_cleanup_mode get_cleanup_mode(const char *cleanup_arg,
-       int use_editor);
+       int use_editor, int die_on_error);
void cleanup_message(struct strbuf *msgbuf,
        enum commit_msg_cleanup_mode cleanup_mode, int verbose);

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