[PATCH v6 00/10] cat-file: better usage UX & error messages

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This series of patches to cat-file significantly improves the UX of
the -h output, see 08/10. For the v5 see[1], for the new usage output
see [2].

1. https://lore.kernel.org/git/cover-v5-00.10-00000000000-20211222T041050Z-avarab@xxxxxxxxx/
2. https://lore.kernel.org/git/patch-v6-08.10-af22a4cb134-20211228T132637Z-avarab@xxxxxxxxx/

Ævar Arnfjörð Bjarmason (10):
  cat-file tests: test bad usage
  cat-file tests: test messaging on bad objects/paths
  parse-options API: add a usage_msg_optf()
  cat-file docs: fix SYNOPSIS and "-h" output
  cat-file: move "usage" variable to cmd_cat_file()
  cat-file: make --batch-all-objects a CMDMODE
  cat-file: fix remaining usage bugs
  cat-file: correct and improve usage information
  object-name.c: don't have GET_OID_ONLY_TO_DIE imply *_QUIETLY
  cat-file: use GET_OID_ONLY_TO_DIE in --(textconv|filters)

 Documentation/git-cat-file.txt |  10 +-
 builtin/cat-file.c             | 182 ++++++++++++++++++++-------------
 builtin/stash.c                |   4 +-
 cache.h                        |   1 +
 object-name.c                  |   8 +-
 parse-options.c                |  13 +++
 parse-options.h                |  10 ++
 t/t1006-cat-file.sh            |  92 +++++++++++++++++
 t/t8007-cat-file-textconv.sh   |  42 ++++++++
 9 files changed, 282 insertions(+), 80 deletions(-)

Range-diff against v5:
 1:  e771bd38792 =  1:  e52834a343f cat-file tests: test bad usage
 2:  291312e2fb5 =  2:  02622592803 cat-file tests: test messaging on bad objects/paths
 3:  0689dbb248c =  3:  ff717088a28 parse-options API: add a usage_msg_optf()
 4:  2a28b39430e =  4:  c4078ce9222 cat-file docs: fix SYNOPSIS and "-h" output
 5:  2d90c12fe7b =  5:  9573437374a cat-file: move "usage" variable to cmd_cat_file()
 6:  227805d1804 =  6:  30ed6617de8 cat-file: make --batch-all-objects a CMDMODE
 7:  e6ea403efe0 !  7:  bf24dd063c9 cat-file: fix remaining usage bugs
    @@ t/t1006-cat-file.sh: do
      	'
      done
      
    -+test_missing_usage() {
    ++test_missing_usage () {
     +	test_expect_code 129 "$@" 2>err &&
     +	grep -E "^fatal:.*required" err
     +}
    @@ t/t1006-cat-file.sh: do
     -	'
      done
      
    -+test_too_many_arguments() {
    ++test_too_many_arguments () {
     +	test_expect_code 129 "$@" 2>err &&
     +	grep -E "^fatal: too many arguments$" err
     +}
 8:  16b6bb8aaf2 =  8:  af22a4cb134 cat-file: correct and improve usage information
 9:  47543c57135 =  9:  7bf5654e8f7 object-name.c: don't have GET_OID_ONLY_TO_DIE imply *_QUIETLY
10:  63920969ca8 = 10:  56826ac73e6 cat-file: use GET_OID_ONLY_TO_DIE in --(textconv|filters)
-- 
2.34.1.1257.g2af47340c7b




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