RFC patch, 6 partssort tags by date (git tag -l -D)

Hi,

I needed to sort my tags by date, and not only the annotated tags. I was surprised that git tag didn't know how to do that. May be it could be handled simply by some shell script. Please tell me :)

Take this patch series easy, it's only a RFC. I had some fun hacking the code, that's the most important for me. I would be happy to take comment.

Something I wish I could do is also have a better pretty_print_tag() to have customized format (or may be it should be in git log instead?)

I tried different approach to deal with light tags, and none was really good. In the end, I decided to use the "object" base type, and have a private light_tag type. There might be different solutions to that. I am happy to discuss them.

regards,

Marc-Andre Lureau (6):
  tag: read signature
  tag: parse the date
  tag: copy parsed buffer unconditionnaly
  object: add one bit to let creation of private types (OBJ_MAX + n)
  builtin-tag: add sort by date -D
  test: add simple sorted tag test

 builtin-tag.c  |  162 ++++++++++++++++++++++++++++++++++++++++++++-----------
 object.h       |    2 +-
 t/t7004-tag.sh |   53 ++++++++++++++++++
 tag.c          |   17 +++++-
 tag.h          |    5 ++-
 5 files changed, 201 insertions(+), 38 deletions(-)

Marc-André Lureau wrote:

As others have pointed out, there's no sane way to sort 

Modulo timezone differences

  git for-each-ref --format="%(taggerdate:raw)%(committerdate:raw) %(refname:short)" refs/tags | sort -n | cut -d\  -f3

For some neat reason only one of the dates is displayed, depending on the type of object.

(Interestingly, the v0.99 tag in git.git doesn't have a date or tagger...)

Thomas Rast wrote:

... lightweight tags of blobs or trees.

*sigh*

Also, do not take my shell command to mean that I don't like this series. It would be nice to have a porcelain feature for it.