[PATCH v3 00/13] Stop relying on SHA1 fallback for `the_hash_algo`

[Patrick Steinhardt <ps@pks.im>]

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Hi,

this is the third version of my patch series that stops relying on the
SHA1 fallback configured for `the_hash_algo`.

There's only a single change compared to v2, which is a new patch that
fixes a segfault in the commit-graph fuzzer.

Thanks!

Patrick

Patrick Steinhardt (13):
  path: harden validation of HEAD with non-standard hashes
  path: move `validate_headref()` to its only user
  parse-options-cb: only abbreviate hashes when hash algo is known
  attr: don't recompute default attribute source
  attr: fix BUG() when parsing attrs outside of repo
  remote-curl: fix parsing of detached SHA256 heads
  builtin/rev-parse: allow shortening to more than 40 hex characters
  builtin/blame: don't access potentially unitialized `the_hash_algo`
  builtin/bundle: abort "verify" early when there is no repository
  builtin/diff: explicitly set hash algo when there is no repo
  builtin/shortlog: don't set up revisions without repo
  oss-fuzz/commit-graph: set up hash algorithm
  repository: stop setting SHA1 as the default object hash

 attr.c                       | 31 +++++++++++++++------
 builtin/blame.c              |  5 ++--
 builtin/bundle.c             |  5 ++++
 builtin/diff.c               |  9 ++++++
 builtin/rev-parse.c          |  5 ++--
 builtin/shortlog.c           |  2 +-
 oss-fuzz/fuzz-commit-graph.c |  1 +
 parse-options-cb.c           |  3 +-
 path.c                       | 53 ------------------------------------
 path.h                       |  1 -
 remote-curl.c                | 19 ++++++++++++-
 repository.c                 |  2 --
 setup.c                      | 53 ++++++++++++++++++++++++++++++++++++
 t/t0003-attributes.sh        | 15 ++++++++++
 t/t0040-parse-options.sh     | 17 ++++++++++++
 t/t1500-rev-parse.sh         |  6 ++++
 t/t5550-http-fetch-dumb.sh   | 15 ++++++++++
 17 files changed, 168 insertions(+), 74 deletions(-)

Range-diff against v2:
 1:  a986b464d3 =  1:  5134f35cda path: harden validation of HEAD with non-standard hashes
 2:  a347c7e6ca =  2:  589b6a99ef path: move `validate_headref()` to its only user
 3:  c0a15b2fa6 =  3:  9a63c445d2 parse-options-cb: only abbreviate hashes when hash algo is known
 4:  1b5f904eed =  4:  929bacbfce attr: don't recompute default attribute source
 5:  26909daca4 =  5:  8f20aec1ee attr: fix BUG() when parsing attrs outside of repo
 6:  0b99184f50 =  6:  53439067a1 remote-curl: fix parsing of detached SHA256 heads
 7:  ccfda3c2d2 =  7:  1f74960760 builtin/rev-parse: allow shortening to more than 40 hex characters
 8:  1813e7eb5c =  8:  2d985abca1 builtin/blame: don't access potentially unitialized `the_hash_algo`
 9:  31182a1fc6 =  9:  f3b23d28aa builtin/bundle: abort "verify" early when there is no repository
10:  78e19d0a1b = 10:  7577b6b96c builtin/diff: explicitly set hash algo when there is no repo
11:  51bcddbc31 = 11:  509c79d1d3 builtin/shortlog: don't set up revisions without repo
 -:  ---------- > 12:  660f976129 oss-fuzz/commit-graph: set up hash algorithm
12:  e8126371e1 = 13:  95909c2da5 repository: stop setting SHA1 as the default object hash
-- 
2.45.0-rc1


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