[PATCH 0/8] [GSOC] ref-filter: eliminate dummy ref_format to make the code cleaner

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Note that there are these disadvantages in the ref-filter code:

 1. Scattered state variables: need_tagged, need_symref are placed globally,
    need_color_reset_at_eol is placed inside ref_format.
 2. parse_sorting_atom() uses a dummy ref_format, which causes us to need a
    lot of extra logic to check in verify_ref_format(), because dummy
    ref_format records some state, while truly ref_format does not.
 3. struct ref_sorting uses a very strange singly linked list
    implementation, and there is a memory leak with it.

Therefore, the following modifications are made to make the logic of
ref-filter cleaner:

 1. Let ref_sorting use list api.
 2. Eliminate dummy ref_format.
 3. Add ref_format to ref_array_item.
 4. Move the check in verify_ref_format() to atom parsing function.
 5. Add deref member to used_atom.
 6. Move need_symref, need_tagged to ref_format.

ZheNing Hu (8):
  [GSOC] ref-filter: use list api to replace ref_sorting linked list
  [GSOC] ref-filter: let parse_sorting_atom() use real ref_format
  [GSOC] ref-filter: add ref_format to ref_array_item
  [GSOC] ref-filter: clean up verify_ref_format()
  [GSOC] ref-filter: introduce symref_atom_parser()
  [GSOC] ref-filter: remove grab_oid() function
  [GSOC] ref-filter: add deref member to struct used_atom
  [GSOC] ref-filter: move need_symref, need_tagged into ref_format

 builtin/branch.c       |  26 +++--
 builtin/for-each-ref.c |  20 ++--
 builtin/ls-remote.c    |  18 ++--
 builtin/tag.c          |  24 +++--
 ref-filter.c           | 236 +++++++++++++++++++++--------------------
 ref-filter.h           |  20 ++--
 6 files changed, 185 insertions(+), 159 deletions(-)


base-commit: c4203212e360b25a1c69467b5a8437d45a373cac
Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-1025%2Fadlternative%2Fref-filter-code-clean-v1
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-1025/adlternative/ref-filter-code-clean-v1
Pull-Request: https://github.com/gitgitgadget/git/pull/1025
-- 
gitgitgadget



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