[PATCH v5 00/15] [GSOC][RFC] cat-file: reuse ref-filter logic

["ZheNing Hu via GitGitGadget" <gitgitgadget@gmail.com>]

This patch series make cat-file reuse ref-filter logic.

Change from last version:

 1. At the suggestion of Bagas Sanjaya, modified the expression of submitted
    information.
 2. Remove grab_oid() function in ref-filter to reduce repeated checks.

ZheNing Hu (15):
  [GSOC] ref-filter: add obj-type check in grab contents
  [GSOC] ref-filter: add %(raw) atom
  [GSOC] ref-filter: --format=%(raw) re-support --perl
  [GSOC] ref-filter: use non-const ref_format in *_atom_parser()
  [GSOC] ref-filter: add %(rest) atom
  [GSOC] ref-filter: pass get_object() return value to their callers
  [GSOC] ref-filter: introduce free_ref_array_item_value() function
  [GSOC] ref-filter: add cat_file_mode in struct ref_format
  [GSOC] ref-filter: modify the error message and value in get_object
  [GSOC] cat-file: add has_object_file() check
  [GSOC] cat-file: change batch_objects parameter name
  [GSOC] cat-file: reuse ref-filter logic
  [GSOC] cat-file: reuse err buf in batch_object_write()
  [GSOC] cat-file: re-implement --textconv, --filters options
  [GSOC] ref-filter: remove grab_oid() function

 Documentation/git-cat-file.txt     |   6 +
 Documentation/git-for-each-ref.txt |   9 +
 builtin/cat-file.c                 | 277 ++++++----------------
 builtin/tag.c                      |   2 +-
 quote.c                            |  17 ++
 quote.h                            |   1 +
 ref-filter.c                       | 357 ++++++++++++++++++++++-------
 ref-filter.h                       |  14 +-
 t/t1006-cat-file.sh                | 252 ++++++++++++++++++++
 t/t3203-branch-output.sh           |   4 +
 t/t6300-for-each-ref.sh            | 235 +++++++++++++++++++
 t/t6301-for-each-ref-errors.sh     |   2 +-
 t/t7004-tag.sh                     |   4 +
 t/t7030-verify-tag.sh              |   4 +
 14 files changed, 888 insertions(+), 296 deletions(-)


base-commit: 1197f1a46360d3ae96bd9c15908a3a6f8e562207
Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-980%2Fadlternative%2Fcat-file-batch-refactor-v5
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-980/adlternative/cat-file-batch-refactor-v5
Pull-Request: https://github.com/gitgitgadget/git/pull/980

Range-diff vs v4:

  1:  f72ad9cc5e8 =  1:  f72ad9cc5e8 [GSOC] ref-filter: add obj-type check in grab contents
  2:  ab497d66c11 !  2:  4e473838b9d [GSOC] ref-filter: add %(raw) atom
     @@ Commit message
          can help us add raw object data to the buffer or compare two buffers
          which contain raw object data.
      
     -    Beyond, `--format=%(raw)` cannot be used with `--python`, `--shell`,
     -    `--tcl`, `--perl` because if our binary raw data is passed to a
     -    variable in the host language, the host language may not support
     -    arbitrary binary data in the variables of its string type.
     +    Note that `--format=%(raw)` cannot be used with `--python`, `--shell`,
     +    `--tcl`, and `--perl` because if the binary raw data is passed to a
     +    variable in such languages, these may not support arbitrary binary data
     +    in their string variable type.
      
          Mentored-by: Christian Couder <christian.couder@gmail.com>
          Mentored-by: Hariom Verma <hariom18599@gmail.com>
  3:  b54dbc431e0 =  3:  765cf08a108 [GSOC] ref-filter: --format=%(raw) re-support --perl
  4:  9fbbb3c492f =  4:  d2aeafd0ef3 [GSOC] ref-filter: use non-const ref_format in *_atom_parser()
  5:  08aa44e5e57 =  5:  1ca3a42f041 [GSOC] ref-filter: add %(rest) atom
  6:  05682bccf9f !  6:  67f1a3cca9a [GSOC] ref-filter: pass get_object() return value to their callers
     @@ Metadata
       ## Commit message ##
          [GSOC] ref-filter: pass get_object() return value to their callers
      
     -    Since in the refactor of `git cat-file --batch` later,
     +    Because in the refactor of `git cat-file --batch` later,
          oid_object_info_extended() in get_object() will be used to obtain
          the info of an object with it's oid. When the object cannot be
          obtained in the git repository, `cat-file --batch` expects to output
  7:  06db6cd6f1f =  7:  2a48a48e81c [GSOC] ref-filter: introduce free_ref_array_item_value() function
  8:  b0d9e139935 =  8:  be55005be75 [GSOC] ref-filter: add cat_file_mode in struct ref_format
  9:  db7dd8b042c =  9:  937f88b7837 [GSOC] ref-filter: modify the error message and value in get_object
 10:  6b577969734 = 10:  45657499c55 [GSOC] cat-file: add has_object_file() check
 11:  069aa203666 ! 11:  bf5c0a017ad [GSOC] cat-file: change batch_objects parameter name
     @@ Metadata
       ## Commit message ##
          [GSOC] cat-file: change batch_objects parameter name
      
     -    Since cat-file reuses ref-filter logic later will add the
     -    formal parameter "const struct option *options" to
     -    batch_objects(), the two synonymous parameters of "opt"
     -    and "options" may confuse readers, so change batch_options
     -    parameter of batch_objects() from "opt" to "batch".
     +    Because later cat-file reuses ref-filter logic that will add
     +    parameter "const struct option *options" to batch_objects(),
     +    the two synonymous parameters of "opt" and "options" may
     +    confuse readers, so change batch_options parameter of
     +    batch_objects() from "opt" to "batch".
      
          Mentored-by: Christian Couder <christian.couder@gmail.com>
          Mentored-by: Hariom Verma <hariom18599@gmail.com>
 12:  258ec0a46c5 = 12:  370101ba65f [GSOC] cat-file: reuse ref-filter logic
 13:  bda6aae9a6c = 13:  69eef47065d [GSOC] cat-file: reuse err buf in batch_object_write()
 14:  d1114a2bd74 = 14:  a7ac037a946 [GSOC] cat-file: re-implement --textconv, --filters options
  -:  ----------- > 15:  843de8864a9 [GSOC] ref-filter: remove grab_oid() function

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