[PATCH v2 00/11] Consolidate ref parsing code

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This is a rif on Duy's oldish patch series [1]. I started reviewing
his patch series, but found that some of his patches did multiple
things, making it harder to review. I started pulling it apart into
smaller changes to aid my review, and I guess I got carried away :-/

As far as I know, Duy isn't actively working on this, so I hope my
reroll is not unwelcome.

As far as I can tell, Duy's patch series was correct aside from a
couple of minor cosmetic blemishes [2]. So if you want to accept Duy's
original patch series, I hereby endorse it.

This version does the following things beyond Duy's original:

* Split commits up into smaller pieces.

* Get rid of the MAXREFLEN limitation.

* Rename the parse_ref() parameter from "ref" to "refname".

* Inline resolve_gitlink_packed_ref() and handle_missing_loose_ref().

* Invert the "if" statement for dealing with symbolic references in
  parse_ref() to make the logic flow more linear.

* Change a couple of "while" loops to "do..while".

* Change resolve_refdup() to return strbuf_detach(&buf, NULL) instead
  of buf.buf directly (as suggested by Eric Sunshine).

I retained Duy as author on commits that are derived straightforwardly
from his. I hope I haven't broken any of them. I am calling this patch
series v2 because I propose it as a successor to Duy's version.

[1] http://thread.gmane.org/gmane.comp.version-control.git/254203/focus=254203

[2] Aside from the couple of things pointed out on the mailing list,

    * The parse_ref() parameter should be named "refname" instead of
      "ref", for consistency with other refs code.

    * The local variable "ref = result->buf" in resolve_ref() just
      obscures things and should be inlined.

Michael Haggerty (5):
  resolve_ref_unsafe(): reverse the logic of the symref conditional
  handle_missing_loose_ref(): inline function
  resolve_gitlink_ref_recursive(): drop arbitrary refname length limit
  resove_gitlink_packed_ref(): inline function
  resolve_gitlink_ref(): remove redundant test

Nguyễn Thái Ngọc Duy (6):
  strbuf_read_file(): preserve errno on failure
  handle_missing_loose_ref(): return an int
  resolve_ref_unsafe(): use skip_prefix() to skip over "ref:"
  refs.c: refactor resolve_ref_unsafe() to use strbuf internally
  refs.c: move ref parsing code out of resolve_ref()
  refs.c: rewrite resolve_gitlink_ref() to use parse_ref()

 cache.h  |  12 +++
 refs.c   | 371 +++++++++++++++++++++++++++++++--------------------------------
 strbuf.c |   7 +-
 3 files changed, 200 insertions(+), 190 deletions(-)

-- 
2.1.1

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