4ef2f2f30d · matheusbsbs/matheus-bagliano

@@ -1,10 +1,10 @@

1 To: git@vger.kernel.org

2 Bcc: lwn@lwn.net

3 -Subject: What's cooking in git.git (May 2021, #06; Fri, 28)

4 -X-master-at: 4e42405f00ecbbee412846f48cb0253efeebe726

5 -X-next-at: 280156cefb2268b8300e6278adc4f77af04d439f

3 +Subject: What's cooking in git.git (Jun 2021, #01; Wed, 2)

4 +X-master-at: c09b6306c6ca275ed9d0348a8c8014b2ff723cfb

5 +X-next-at: 926086ebc4ae8f6b5c7ad3879ed2adde33d6bb1a

6

7 -What's cooking in git.git (May 2021, #06; Fri, 28)

7 +What's cooking in git.git (Jun 2021, #01; Wed, 2)

8 --------------------------------------------------

9

10 Here are the topics that have been cooking in my tree. Commits

@@ -13,7 +13,8 @@ topics that are not yet in 'next') while commits prefixed with '+'

13 are in 'next'. The ones marked with '.' do not appear in any of the

14 integration branches, but I am still holding onto them.

15

16 -The second release candidate Git 2.32-rc2 has been tagged.

16 +Hopefully the last release candidate for this cycle, -rc3, has been

17 +tagged. A big thank-you to those who gave us the last minute fixes.

18

19 Copies of the source code to Git live in many repositories, and the

20 following is a list of the ones I push into or their mirrors. Some

@@ -46,133 +47,75 @@ Release tarballs are available at:

47 --------------------------------------------------

48 [Graduated to 'master']

49

49 -* ab/pack-linkage-fix (2021-05-27) 1 commit

50 - (merged to 'next' on 2021-05-27 at 120d76a959)

51 - + pack-objects: move static inline from a header to the sole consumer

50 +* ab/fsck-api-cleanup (2021-06-02) 1 commit

51 + (merged to 'next' on 2021-06-02 at 51b09ce3c0)

52 + + builtin/fsck.c: don't conflate "int" and "enum" in callback

53

53 - "ld" on Solaris fails to link some test helpers, which has been

54 - worked around by reshuffling the inline function definitions from a

55 - header file to a source file that is the only user of them.

54 + Last minute compilation fix.

55

56

58 -* ab/send-email-inline-hooks-path (2021-05-27) 2 commits

59 - (merged to 'next' on 2021-05-27 at 402272f99e)

60 - + send-email: move "hooks_path" invocation to git-send-email.perl

61 - + send-email: don't needlessly abs_path() the core.hooksPath

57 +* da/zsh-completion-fix-for-2.32 (2021-06-02) 1 commit

58 + (merged to 'next' on 2021-06-02 at b8b87a5505)

59 + + contrib/completion: fix zsh completion regression from 59d85a2a05

60

63 - Code simplification.

61 + Fix breakages to zsh completion script (in contrib/) due to recent

62 + update to the bash completion of the same.

63

64 +--------------------------------------------------

65 +[New Topics]

66

66 -* ab/send-email-validate-errors-fix (2021-05-25) 1 commit

67 - (merged to 'next' on 2021-05-25 at 1e78c17669)

68 - + send-email: fix missing error message regression

69 -

70 -

71 -* ds/t1092-fix-flake-from-progress (2021-05-26) 2 commits

72 - (merged to 'next' on 2021-05-26 at 5c116071b1)

73 - + t1092: revert the "-1" hack for emulating "no progress meter"

74 - (merged to 'next' on 2021-05-26 at 3a1982b559)

75 - + t1092: use GIT_PROGRESS_DELAY for consistent results

76 -

77 - Workaround flaky tests introduced recently.

78 -

79 -

80 -* en/dir-traversal (2021-05-27) 4 commits

81 - (merged to 'next' on 2021-05-27 at 3e70b5a671)

82 - + dir: introduce readdir_skip_dot_and_dotdot() helper

83 - + dir: update stale description of treat_directory()

84 - + Revert "dir: update stale description of treat_directory()"

85 - + Revert "dir: introduce readdir_skip_dot_and_dotdot() helper"

86 -

87 - Fix-up to a topic that is already in 'master'.

88 -

89 -

90 -* jt/send-email-validate-errors-fix (2021-05-25) 1 commit

91 - (merged to 'next' on 2021-05-25 at f7659a41c8)

92 - + t9001-send-email.sh: fix expected absolute paths on Windows

93 -

94 - Fix a test breakage.

95 -

96 -

97 -* mt/init-template-userpath-fix (2021-05-25) 1 commit

98 - (merged to 'next' on 2021-05-25 at a1b42bf271)

99 - + init: fix bug regarding ~/ expansion in init.templateDir

100 -

101 - Regression fix.

102 -

67 +* fc/push-simple-updates (2021-06-02) 7 commits

68 + - doc: push: explain default=simple correctly

69 + - push: remove unused code in setup_push_upstream()

70 + - push: simplify setup_push_simple()

71 + - push: reorganize setup_push_simple()

72 + - push: copy code to setup_push_simple()

73 + - push: hedge code of default=simple

74 + - push: rename !triangular to same_remote

75 + (this branch is used by fc/push-simple-updates-cleanup.)

76

104 -* mt/t2080-cp-symlink-fix (2021-05-27) 1 commit

105 - (merged to 'next' on 2021-05-27 at 0b90c816b3)

106 - + t2080: fix cp invocation to copy symlinks instead of following them

77 + Some code and doc clarification around "git push".

78

108 - Test portability fix.

109 -

110 ---------------------------------------------------

111 -[New Topics]

79 + Will merge to 'next'.

80

113 -* zh/ref-filter-raw-data (2021-05-25) 4 commits

114 - - ref-filter: add contents:raw atom

115 - - SQUASH???

116 - - ref-filter: support %(contents) for blob, tree

117 - - quote: add *.quote_buf_with_size functions

81

119 - Prepare the "ref-filter" machinery that drives the "--format"

120 - option of "git for-each-ref" and its friends to be used in "git

121 - cat-file --batch".

82 +* fc/push-simple-updates-cleanup (2021-06-02) 13 commits

83 + - push: don't get a full remote object

84 + - push: only check same_remote when needed

85 + - push: remove trivial function

86 + - push: remove redundant check

87 + - push: factor out the typical case

88 + - push: get rid of all the setup_push_* functions

89 + - push: trivial simplifications

90 + - push: make setup_push_* return the dst

91 + - push: only get the branch when needed

92 + - push: factor out null branch check

93 + - push: split switch cases

94 + - push: return immediately in trivial switch case

95 + - push: create new get_upstream_ref() helper

96 + (this branch uses fc/push-simple-updates.)

97 +

98 + Some more code and doc clarification around "git push".

99

123 - Seems to break tests when merged to 'seen'.

100 + Will merge to 'next'.

101

102

126 -* fc/doc-build-cleanup (2021-05-24) 5 commits

127 - - doc: avoid using rm directly

128 - - doc: simplify Makefile using .DELETE_ON_ERROR

129 - - doc: remove unnecessary rm instances

130 - - doc: improve asciidoc dependencies

131 - - doc: refactor common asciidoc dependencies

103 +* tb/complete-diff-anchored (2021-05-31) 1 commit

104 + - completion: add --anchored to diff's options

105

133 - Preparatory build procedure clean-up for documentation.

106 + The command line completion (in contrib/) learned that "git diff"

107 + takes the "--anchored" option.

108

109 Will merge to 'next'.

110

111

138 -* es/config-based-hooks (2021-05-27) 37 commits

139 - - docs: link githooks and git-hook manpages

140 - - doc: clarify fsmonitor-watchman specification

141 - - run-command: stop thinking about hooks

142 - - git-send-email: use 'git hook run' for 'sendemail-validate'

143 - - bugreport: use hook_exists instead of find_hook

144 - - receive-pack: convert receive hooks to hook.h

145 - - post-update: use hook.h library

146 - - proc-receive: acquire hook list from hook.h

147 - - receive-pack: convert 'update' hook to hook.h

148 - - reference-transaction: look for hooks in config

149 - - transport: convert pre-push hook to use config

150 - - hook: convert 'post-rewrite' hook to config

151 - - hooks: convert 'post-checkout' hook to hook library

152 - - git-p4: use 'git hook' to run hooks

153 - - receive-pack: convert push-to-checkout hook to hook.h

154 - - read-cache: convert post-index-change hook to use config

155 - - rebase: teach pre-rebase to use hook.h

156 - - gc: use hook library for pre-auto-gc hook

157 - - merge: use config-based hooks for post-merge hook

158 - - am: convert applypatch hooks to use config

159 - - commit: use config-based hooks

160 - - hooks: allow callers to capture output

161 - - run-command: allow capturing of collated output

162 - - hook: provide stdin by string_list or callback

163 - - run-command: add stdin callback for parallelization

164 - - hook: allow specifying working directory for hooks

165 - - hook: allow parallel hook execution

166 - - run-command: allow stdin for run_processes_parallel

167 - - hook: support passing stdin to hooks

168 - - hook: introduce hook_exists()

169 - - hook: add 'run' subcommand

170 - - parse-options: parse into strvec

171 - - hook: implement hookcmd.<name>.skip

172 - - hook: teach hook.runHookDir

173 - - hook: include hookdir hook in list

174 - - hook: introduce git-hook subcommand

175 - - doc: propose hooks managed by the config

112 +* en/ort-perf-batch-12 (2021-06-02) 5 commits

113 + - merge-ort: miscellaneous touch-ups

114 + - Fix various issues found in comments

115 + - diffcore-rename: enable limiting rename detection to relevant destinations

116 + - diffcore-rename: avoid unnecessary strdup'ing in break_idx

117 + - merge-ort: replace string_list_df_name_compare with faster alternative

118 + (this branch uses en/ort-perf-batch-11.)

119

120 --------------------------------------------------

121 [Stalled]

@@ -193,34 +136,34 @@ Release tarballs are available at:

136

137

138 * hn/reftable (2021-05-20) 28 commits

196 - - t1404: annotate test cases with REFFILES

197 - - t1401,t2011: parameterize HEAD.lock for REFTABLE

198 - - t1301: document what needs to be done for REFTABLE

199 - - Add "test-tool dump-reftable" command.

200 - - git-prompt: prepare for reftable refs backend

201 - - Reftable support for git-core

202 - - reftable: add dump utility

203 - - reftable: implement stack, a mutable database of reftable files.

204 - - reftable: implement refname validation

205 - - reftable: add merged table view

206 - - reftable: add a heap-based priority queue for reftable records

207 - - reftable: reftable file level tests

208 - - reftable: read reftable files

209 - - reftable: generic interface to tables

210 - - reftable: write reftable files

211 - - reftable: a generic binary tree implementation

212 - - reftable: reading/writing blocks

213 - - Provide zlib's uncompress2 from compat/zlib-compat.c

214 - - reftable: (de)serialization for the polymorphic record type.

215 - - reftable: add blocksource, an abstraction for random access reads

216 - - reftable: utility functions

217 - - reftable: add error related functionality

218 - - reftable: add LICENSE

219 - - init-db: set the_repository->hash_algo early on

220 - - hash.h: provide constants for the hash IDs

221 - - refs/debug: trace into reflog expiry too

222 - - refs: document reflog_expire_fn's flag argument

223 - - refs: make explicit that ref_iterator_peel returns boolean

139 + . t1404: annotate test cases with REFFILES

140 + . t1401,t2011: parameterize HEAD.lock for REFTABLE

141 + . t1301: document what needs to be done for REFTABLE

142 + . Add "test-tool dump-reftable" command.

143 + . git-prompt: prepare for reftable refs backend

144 + . Reftable support for git-core

145 + . reftable: add dump utility

146 + . reftable: implement stack, a mutable database of reftable files.

147 + . reftable: implement refname validation

148 + . reftable: add merged table view

149 + . reftable: add a heap-based priority queue for reftable records

150 + . reftable: reftable file level tests

151 + . reftable: read reftable files

152 + . reftable: generic interface to tables

153 + . reftable: write reftable files

154 + . reftable: a generic binary tree implementation

155 + . reftable: reading/writing blocks

156 + . Provide zlib's uncompress2 from compat/zlib-compat.c

157 + . reftable: (de)serialization for the polymorphic record type.

158 + . reftable: add blocksource, an abstraction for random access reads

159 + . reftable: utility functions

160 + . reftable: add error related functionality

161 + . reftable: add LICENSE

162 + . init-db: set the_repository->hash_algo early on

163 + . hash.h: provide constants for the hash IDs

164 + . refs/debug: trace into reflog expiry too

165 + . refs: document reflog_expire_fn's flag argument

166 + . refs: make explicit that ref_iterator_peel returns boolean

167

168 The "reftable" backend for the refs API.

169

@@ -252,11 +195,11 @@ Release tarballs are available at:

195 cf. <xmqqa6pca0pv.fsf@gitster.g>, <xmqq1rao9zev.fsf@gitster.g>

196

197

255 -* hn/prep-tests-for-reftable (2021-04-28) 21 commits

198 +* hn/prep-tests-for-reftable (2021-06-02) 22 commits

199 - t1415: set REFFILES for test specific to storage format

200 - t4202: mark bogus head hash test with REFFILES

201 - t7003: check reflog existence only for REFFILES

259 - - t7900: mark pack-refs tests as REFFILES

202 + - t7900: stop checking for loose refs

203 - t1404: mark tests that muck with .git directly as REFFILES.

204 - t2017: mark --orphan/logAllRefUpdates=false test as REFFILES

205 - t1414: mark corruption test with REFFILES

@@ -270,6 +213,7 @@ Release tarballs are available at:

213 - t1301: fix typo in error message

214 - t1413: use tar to save and restore entire .git directory

215 - t1401-symbolic-ref: avoid direct filesystem access

216 + - t1401: use tar to snapshot and restore repo state

217 - t5601: read HEAD using rev-parse

218 - t9300: check ref existence using test-helper rather than a file system check

219 - t/helper/ref-store: initialize oid in resolve-ref

@@ -278,33 +222,33 @@ Release tarballs are available at:

222 Preliminary clean-up of tests before the main reftable changes

223 hits the codebase.

224

281 - Waiting for reviews.

225 + Will merge to 'next'.

226

227

228 * tb/multi-pack-bitmaps (2021-04-10) 23 commits

285 - - p5326: perf tests for MIDX bitmaps

286 - - p5310: extract full and partial bitmap tests

287 - - midx: respect 'GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP'

288 - - t7700: update to work with MIDX bitmap test knob

289 - - t5319: don't write MIDX bitmaps in t5319

290 - - t5310: disable GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP

291 - - t5326: test multi-pack bitmap behavior

292 - - t/helper/test-read-midx.c: add --checksum mode

293 - - t5310: move some tests to lib-bitmap.sh

294 - - pack-bitmap: write multi-pack bitmaps

295 - - pack-bitmap: read multi-pack bitmaps

296 - - pack-bitmap.c: introduce 'bitmap_is_preferred_refname()'

297 - - pack-bitmap.c: introduce 'nth_bitmap_object_oid()'

298 - - pack-bitmap.c: introduce 'bitmap_num_objects()'

299 - - midx: respect 'core.multiPackIndex' when writing

300 - - midx: clear auxiliary .rev after replacing the MIDX

301 - - midx: make a number of functions non-static

302 - - Documentation: describe MIDX-based bitmaps

303 - - Documentation: build 'technical/bitmap-format' by default

304 - - pack-bitmap-write.c: free existing bitmaps

305 - - pack-bitmap-write.c: gracefully fail to write non-closed bitmaps

306 - - pack-bitmap.c: harden 'test_bitmap_walk()' to check type bitmaps

307 - - Merge branch 'tb/pack-preferred-tips-to-give-bitmap' into tb/multi-pack-bitmaps

229 + . p5326: perf tests for MIDX bitmaps

230 + . p5310: extract full and partial bitmap tests

231 + . midx: respect 'GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP'

232 + . t7700: update to work with MIDX bitmap test knob

233 + . t5319: don't write MIDX bitmaps in t5319

234 + . t5310: disable GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP

235 + . t5326: test multi-pack bitmap behavior

236 + . t/helper/test-read-midx.c: add --checksum mode

237 + . t5310: move some tests to lib-bitmap.sh

238 + . pack-bitmap: write multi-pack bitmaps

239 + . pack-bitmap: read multi-pack bitmaps

240 + . pack-bitmap.c: introduce 'bitmap_is_preferred_refname()'

241 + . pack-bitmap.c: introduce 'nth_bitmap_object_oid()'

242 + . pack-bitmap.c: introduce 'bitmap_num_objects()'

243 + . midx: respect 'core.multiPackIndex' when writing

244 + . midx: clear auxiliary .rev after replacing the MIDX

245 + . midx: make a number of functions non-static

246 + . Documentation: describe MIDX-based bitmaps

247 + . Documentation: build 'technical/bitmap-format' by default

248 + . pack-bitmap-write.c: free existing bitmaps

249 + . pack-bitmap-write.c: gracefully fail to write non-closed bitmaps

250 + . pack-bitmap.c: harden 'test_bitmap_walk()' to check type bitmaps

251 + . Merge branch 'tb/pack-preferred-tips-to-give-bitmap' into tb/multi-pack-bitmaps

252

253 The reachability bitmap file used to be generated only for a single

254 pack, but now we've learned to generate bitmaps for history that

@@ -451,6 +395,70 @@ Release tarballs are available at:

395 --------------------------------------------------

396 [Cooking]

397

398 +* zh/ref-filter-raw-data (2021-05-31) 2 commits

399 + . ref-filter: add %(raw) atom

400 + . ref-filter: add obj-type check in grab contents

401 +

402 + Prepare the "ref-filter" machinery that drives the "--format"

403 + option of "git for-each-ref" and its friends to be used in "git

404 + cat-file --batch".

405 +

406 + Seems to crash with zh/ref-filter-atom-type.

407 +

408 +

409 +* fc/doc-build-cleanup (2021-05-24) 5 commits

410 + (merged to 'next' on 2021-05-31 at af103e12f4)

411 + + doc: avoid using rm directly

412 + + doc: simplify Makefile using .DELETE_ON_ERROR

413 + + doc: remove unnecessary rm instances

414 + + doc: improve asciidoc dependencies

415 + + doc: refactor common asciidoc dependencies

416 +

417 + Preparatory build procedure clean-up for documentation.

418 +

419 + Will cook in 'next'.

420 +

421 +

422 +* es/config-based-hooks (2021-05-27) 37 commits

423 + - docs: link githooks and git-hook manpages

424 + - doc: clarify fsmonitor-watchman specification

425 + - run-command: stop thinking about hooks

426 + - git-send-email: use 'git hook run' for 'sendemail-validate'

427 + - bugreport: use hook_exists instead of find_hook

428 + - receive-pack: convert receive hooks to hook.h

429 + - post-update: use hook.h library

430 + - proc-receive: acquire hook list from hook.h

431 + - receive-pack: convert 'update' hook to hook.h

432 + - reference-transaction: look for hooks in config

433 + - transport: convert pre-push hook to use config

434 + - hook: convert 'post-rewrite' hook to config

435 + - hooks: convert 'post-checkout' hook to hook library

436 + - git-p4: use 'git hook' to run hooks

437 + - receive-pack: convert push-to-checkout hook to hook.h

438 + - read-cache: convert post-index-change hook to use config

439 + - rebase: teach pre-rebase to use hook.h

440 + - gc: use hook library for pre-auto-gc hook

441 + - merge: use config-based hooks for post-merge hook

442 + - am: convert applypatch hooks to use config

443 + - commit: use config-based hooks

444 + - hooks: allow callers to capture output

445 + - run-command: allow capturing of collated output

446 + - hook: provide stdin by string_list or callback

447 + - run-command: add stdin callback for parallelization

448 + - hook: allow specifying working directory for hooks

449 + - hook: allow parallel hook execution

450 + - run-command: allow stdin for run_processes_parallel

451 + - hook: support passing stdin to hooks

452 + - hook: introduce hook_exists()

453 + - hook: add 'run' subcommand

454 + - parse-options: parse into strvec

455 + - hook: implement hookcmd.<name>.skip

456 + - hook: teach hook.runHookDir

457 + - hook: include hookdir hook in list

458 + - hook: introduce git-hook subcommand

459 + - doc: propose hooks managed by the config

460 +

461 +

462 * jh/builtin-fsmonitor (2021-05-24) 30 commits

463 - t/perf: avoid copying builtin fsmonitor files into test repo

464 - t7527: test status with untracked-cache and fsmonitor--daemon

@@ -577,7 +585,7 @@ Release tarballs are available at:

585 Will cook in 'next'.

586

587

580 -* ab/send-email-optim (2021-05-24) 13 commits

588 +* ab/send-email-optim (2021-05-28) 13 commits

589 - perl: nano-optimize by replacing Cwd::cwd() with Cwd::getcwd()

590 - send-email: move trivial config handling to Perl

591 - perl: lazily load some common Git.pm setup code

@@ -769,6 +777,7 @@ Release tarballs are available at:

777 + fast-rebase: change assert() to BUG()

778 + Documentation/technical: describe remembering renames optimization

779 + t6423: rename file within directory that other side renamed

780 + (this branch is used by en/ort-perf-batch-12.)

781

782 Optimize out repeated rename detection in a sequence of mergy

783 operations.

@@ -777,40 +786,41 @@ Release tarballs are available at:

786

787

788 * ab/test-lib-updates (2021-05-11) 11 commits

780 - - test-lib: split up and deprecate test_create_repo()

781 - - test-lib: do not show advice about init.defaultBranch under --verbose

782 - - test-lib: reformat argument list in test_create_repo()

783 - - submodule tests: use symbolic-ref --short to discover branch name

784 - - test-lib functions: add --printf option to test_commit

785 - - describe tests: convert setup to use test_commit

786 - - test-lib functions: add an --annotated option to "test_commit"

787 - - test-lib-functions: document test_commit --no-tag

788 - - test-lib-functions: reword "test_commit --append" docs

789 - - test-lib tests: remove dead GIT_TEST_FRAMEWORK_SELFTEST variable

790 - - test-lib: bring $remove_trash out of retirement

789 + (merged to 'next' on 2021-05-31 at 73bf1ecb31)

790 + + test-lib: split up and deprecate test_create_repo()

791 + + test-lib: do not show advice about init.defaultBranch under --verbose

792 + + test-lib: reformat argument list in test_create_repo()

793 + + submodule tests: use symbolic-ref --short to discover branch name

794 + + test-lib functions: add --printf option to test_commit

795 + + describe tests: convert setup to use test_commit

796 + + test-lib functions: add an --annotated option to "test_commit"

797 + + test-lib-functions: document test_commit --no-tag

798 + + test-lib-functions: reword "test_commit --append" docs

799 + + test-lib tests: remove dead GIT_TEST_FRAMEWORK_SELFTEST variable

800 + + test-lib: bring $remove_trash out of retirement

801 (this branch is used by ab/describe-tests-fix and ab/pickaxe-pcre2.)

802

803 Test clean-up.

804

805

806 * ab/fsck-unexpected-type (2021-05-21) 17 commits

797 - - fsck: report invalid object type-path combinations

798 - - fsck: report invalid types recorded in objects

799 - - object-store.h: move read_loose_object() below 'struct object_info'

800 - - fsck: don't hard die on invalid object types

801 - - object-file.c: return -1, not "status" from unpack_loose_header()

802 - - object-file.c: return -2 on "header too long" in unpack_loose_header()

803 - - object-file.c: stop dying in parse_loose_header()

804 - - object-file.c: add missing braces to loose_object_info()

805 - - object-file.c: make parse_loose_header_extended() public

806 - - cache.h: move object functions to object-store.h

807 - - cat-file tests: test for current --allow-unknown-type behavior

808 - - cat-file tests: add corrupt loose object test

809 - - rev-list tests: test for behavior with invalid object types

810 - - cat-file tests: test that --allow-unknown-type isn't on by default

811 - - cat-file tests: test for missing object with -t and -s

812 - - fsck tests: add test for fsck-ing an unknown type

813 - - fsck tests: refactor one test to use a sub-repo

807 + . fsck: report invalid object type-path combinations

808 + . fsck: report invalid types recorded in objects

809 + . object-store.h: move read_loose_object() below 'struct object_info'

810 + . fsck: don't hard die on invalid object types

811 + . object-file.c: return -1, not "status" from unpack_loose_header()

812 + . object-file.c: return -2 on "header too long" in unpack_loose_header()

813 + . object-file.c: stop dying in parse_loose_header()

814 + . object-file.c: add missing braces to loose_object_info()

815 + . object-file.c: make parse_loose_header_extended() public

816 + . cache.h: move object functions to object-store.h

817 + . cat-file tests: test for current --allow-unknown-type behavior

818 + . cat-file tests: add corrupt loose object test

819 + . rev-list tests: test for behavior with invalid object types

820 + . cat-file tests: test that --allow-unknown-type isn't on by default

821 + . cat-file tests: test for missing object with -t and -s

822 + . fsck tests: add test for fsck-ing an unknown type

823 + . fsck tests: refactor one test to use a sub-repo

824

825 "git fsck" has been taught to report mismatch between expected and

826 actual types of an object better.

What's cooking (2021/06 #01)