On 08/08/18 16:17, Alban Gruin wrote:
Hi Phillip,

Le 07/08/2018 à 16:00, Phillip Wood a écrit :
On 31/07/18 18:59, Alban Gruin wrote:
+
+int edit_todo_list(unsigned flags)
+{
+       struct strbuf buf = STRBUF_INIT;
+       const char *todo_file = rebase_path_todo();
+       FILE *todo;
+
+       if (strbuf_read_file(&buf, todo_file, 0) < 0)
+               return error_errno(_("could not read '%s'."), todo_file);
+
+       strbuf_stripspace(&buf, 1);
+       todo = fopen_or_warn(todo_file, "w");

This truncates the existing file, if there are any errors writing the
new one then the user has lost the old one. write_message() in
sequencer.c avoids this problem by writing a new file and then renaming
it if the write is successful, maybe it is worth exporting it so it can
be used elsewhere.

+       if (!todo) {
+               strbuf_release(&buf);
+               return 1;
+       }
+
+       strbuf_write(&buf, todo);
+       fclose(todo);

There needs to be some error checking after the write and the close
(using write_message() would mean you only have to check for errors in
one place)


Right.  Should I find a new nawe for write_message()?

That might be a good idea, I'm not sure what it should be though, maybe write_file()?, perhaps someone else might have a better suggestion.

Best Wishes

Phillip


Cheers,
Alban


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