Re: [PATCH] reset cached ident date before creating objects

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Hi Jeff,

On Sat, Jul 30, 2016 at 2:05 AM, Jeff King <peff@xxxxxxxx> wrote:
> When we compute the date to put in author/committer lines of
> commits, or tagger lines of tags, we get the current date
> once and then cache it for the rest of the program.  This is
> a good thing in some cases, like "git commit", because it
> means we do not racily assign different times to the
> author/committer fields of a single commit object.

So commits created with "git commit" should have the same author and
committer timestamps...

> diff --git a/commit.c b/commit.c
> index 71a360d..7ddbffe 100644
> --- a/commit.c
> +++ b/commit.c
> @@ -1548,6 +1548,7 @@ int commit_tree_extended(const char *msg, size_t msg_len,
>         }
>
>         /* Person/date information */
> +       reset_ident_date();
>         if (!author)
>                 author = git_author_info(IDENT_STRICT);
>         strbuf_addf(&buffer, "author %s\n", author);

But since builtin/commit.c constructs its author ident string before
calling the editor and then commit_tree_extended(), this would cause
the resulting commits to have committer timestamps which differ from
their author timestamps.

So maybe we would have to put reset_ident_date() at the end of the
function instead, at least after git_committer_info() is called.

Regards,
Paul
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