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4 years agoreset: clear_unpack_trees_porcelain to plug leak
Andrzej Hunt [Sun, 25 Jul 2021 13:08:30 +0000 (15:08 +0200)] 
reset: clear_unpack_trees_porcelain to plug leak

setup_unpack_trees_porcelain() populates various fields on
unpack_tree_opts, we need to call clear_unpack_trees_porcelain() to
avoid leaking them. Specifically, we used to leak
unpack_tree_opts.msgs_to_free.

We have to do this in leave_reset_head because there are multiple
scenarios where unpack_tree_opts has already been configured, followed
by a 'goto leave_reset_head'. But we can also 'goto leave_reset_head'
prior to having initialised unpack_tree_opts via memset(..., 0, ...).
Therefore we also move unpack_tree_opts initialisation to the start of
reset_head(), and convert it to use brace initialisation - which
guarantees that we can never clear an uninitialised unpack_tree_opts.
clear_unpack_tree_opts() is always safe to call as long as
unpack_tree_opts is at least zero-initialised, i.e. it does not depend
on a previous call to setup_unpack_trees_porcelain().

LSAN output from t0021:

Direct leak of 192 byte(s) in 1 object(s) allocated from:
    #0 0x49ab49 in realloc ../projects/compiler-rt/lib/asan/asan_malloc_linux.cpp:164:3
    #1 0xa721e5 in xrealloc wrapper.c:126:8
    #2 0x9f7861 in strvec_push_nodup strvec.c:19:2
    #3 0x9f7861 in strvec_pushf strvec.c:39:2
    #4 0xa43e14 in setup_unpack_trees_porcelain unpack-trees.c:129:3
    #5 0x97e011 in reset_head reset.c:53:2
    #6 0x61dfa5 in cmd_rebase builtin/rebase.c:1991:9
    #7 0x4ce83e in run_builtin git.c:475:11
    #8 0x4ccafe in handle_builtin git.c:729:3
    #9 0x4cb01c in run_argv git.c:818:4
    #10 0x4cb01c in cmd_main git.c:949:19
    #11 0x6b3f3d in main common-main.c:52:11
    #12 0x7fa8addf3349 in __libc_start_main (/lib64/libc.so.6+0x24349)

Indirect leak of 147 byte(s) in 1 object(s) allocated from:
    #0 0x49ab49 in realloc ../projects/compiler-rt/lib/asan/asan_malloc_linux.cpp:164:3
    #1 0xa721e5 in xrealloc wrapper.c:126:8
    #2 0x9e8d54 in strbuf_grow strbuf.c:98:2
    #3 0x9e8d54 in strbuf_vaddf strbuf.c:401:3
    #4 0x9f7774 in strvec_pushf strvec.c:36:2
    #5 0xa43e14 in setup_unpack_trees_porcelain unpack-trees.c:129:3
    #6 0x97e011 in reset_head reset.c:53:2
    #7 0x61dfa5 in cmd_rebase builtin/rebase.c:1991:9
    #8 0x4ce83e in run_builtin git.c:475:11
    #9 0x4ccafe in handle_builtin git.c:729:3
    #10 0x4cb01c in run_argv git.c:818:4
    #11 0x4cb01c in cmd_main git.c:949:19
    #12 0x6b3f3d in main common-main.c:52:11
    #13 0x7fa8addf3349 in __libc_start_main (/lib64/libc.so.6+0x24349)

Indirect leak of 134 byte(s) in 1 object(s) allocated from:
    #0 0x49ab49 in realloc ../projects/compiler-rt/lib/asan/asan_malloc_linux.cpp:164:3
    #1 0xa721e5 in xrealloc wrapper.c:126:8
    #2 0x9e8d54 in strbuf_grow strbuf.c:98:2
    #3 0x9e8d54 in strbuf_vaddf strbuf.c:401:3
    #4 0x9f7774 in strvec_pushf strvec.c:36:2
    #5 0xa43fe4 in setup_unpack_trees_porcelain unpack-trees.c:168:3
    #6 0x97e011 in reset_head reset.c:53:2
    #7 0x61dfa5 in cmd_rebase builtin/rebase.c:1991:9
    #8 0x4ce83e in run_builtin git.c:475:11
    #9 0x4ccafe in handle_builtin git.c:729:3
    #10 0x4cb01c in run_argv git.c:818:4
    #11 0x4cb01c in cmd_main git.c:949:19
    #12 0x6b3f3d in main common-main.c:52:11
    #13 0x7fa8addf3349 in __libc_start_main (/lib64/libc.so.6+0x24349)

Indirect leak of 130 byte(s) in 1 object(s) allocated from:
    #0 0x49ab49 in realloc ../projects/compiler-rt/lib/asan/asan_malloc_linux.cpp:164:3
    #1 0xa721e5 in xrealloc wrapper.c:126:8
    #2 0x9e8d54 in strbuf_grow strbuf.c:98:2
    #3 0x9e8d54 in strbuf_vaddf strbuf.c:401:3
    #4 0x9f7774 in strvec_pushf strvec.c:36:2
    #5 0xa43f20 in setup_unpack_trees_porcelain unpack-trees.c:150:3
    #6 0x97e011 in reset_head reset.c:53:2
    #7 0x61dfa5 in cmd_rebase builtin/rebase.c:1991:9
    #8 0x4ce83e in run_builtin git.c:475:11
    #9 0x4ccafe in handle_builtin git.c:729:3
    #10 0x4cb01c in run_argv git.c:818:4
    #11 0x4cb01c in cmd_main git.c:949:19
    #12 0x6b3f3d in main common-main.c:52:11
    #13 0x7fa8addf3349 in __libc_start_main (/lib64/libc.so.6+0x24349)

SUMMARY: AddressSanitizer: 603 byte(s) leaked in 4 allocation(s).

Signed-off-by: Andrzej Hunt <andrzej@ahunt.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
4 years agobuiltin/rebase: fix options.strategy memory lifecycle
Andrzej Hunt [Sun, 25 Jul 2021 13:08:29 +0000 (15:08 +0200)] 
builtin/rebase: fix options.strategy memory lifecycle

- cmd_rebase populates rebase_options.strategy with newly allocated
  strings, hence we need to free those strings at the end of cmd_rebase
  to avoid a leak.
- In some cases: get_replay_opts() is called, which prepares replay_opts
  using data from rebase_options. We used to simply copy the pointer
  from rebase_options.strategy,  however that would now result in a
  double-free because sequencer_remove_state() is eventually used to
  free replay_opts.strategy. To avoid this we xstrdup() strategy when
  adding it to replay_opts.

The original leak happens because we always populate
rebase_options.strategy, but we don't always enter the path that calls
get_replay_opts() and later sequencer_remove_state() - in  other words
we'd always allocate a new string into rebase_options.strategy but
only sometimes did we free it. We now make sure that rebase_options
and replay_opts both own their own copies of strategy, and each copy
is free'd independently.

This was first seen when running t0021 with LSAN, but t2012 helped catch
the fact that we can't just free(options.strategy) at the end of
cmd_rebase (as that can cause a double-free). LSAN output from t0021:

LSAN output from t0021:

Direct leak of 4 byte(s) in 1 object(s) allocated from:
    #0 0x486804 in strdup ../projects/compiler-rt/lib/asan/asan_interceptors.cpp:452:3
    #1 0xa71eb8 in xstrdup wrapper.c:29:14
    #2 0x61b1cc in cmd_rebase builtin/rebase.c:1779:22
    #3 0x4ce83e in run_builtin git.c:475:11
    #4 0x4ccafe in handle_builtin git.c:729:3
    #5 0x4cb01c in run_argv git.c:818:4
    #6 0x4cb01c in cmd_main git.c:949:19
    #7 0x6b3fad in main common-main.c:52:11
    #8 0x7f267b512349 in __libc_start_main (/lib64/libc.so.6+0x24349)

SUMMARY: AddressSanitizer: 4 byte(s) leaked in 1 allocation(s).

Signed-off-by: Andrzej Hunt <andrzej@ahunt.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
4 years agobuiltin/merge: free found_ref when done
Andrzej Hunt [Sun, 25 Jul 2021 13:08:28 +0000 (15:08 +0200)] 
builtin/merge: free found_ref when done

merge_name() calls dwim_ref(), which allocates a new string into
found_ref. Therefore add a free() to avoid leaking found_ref.

LSAN output from t0021:

Direct leak of 16 byte(s) in 1 object(s) allocated from:
    #0 0x486804 in strdup ../projects/compiler-rt/lib/asan/asan_interceptors.cpp:452:3
    #1 0xa8beb8 in xstrdup wrapper.c:29:14
    #2 0x954054 in expand_ref refs.c:671:12
    #3 0x953cb6 in repo_dwim_ref refs.c:644:22
    #4 0x5d3759 in dwim_ref refs.h:162:9
    #5 0x5d3759 in merge_name builtin/merge.c:517:6
    #6 0x5d3759 in collect_parents builtin/merge.c:1214:5
    #7 0x5cf60d in cmd_merge builtin/merge.c:1458:16
    #8 0x4ce83e in run_builtin git.c:475:11
    #9 0x4ccafe in handle_builtin git.c:729:3
    #10 0x4cb01c in run_argv git.c:818:4
    #11 0x4cb01c in cmd_main git.c:949:19
    #12 0x6bdbfd in main common-main.c:52:11
    #13 0x7f0430502349 in __libc_start_main (/lib64/libc.so.6+0x24349)

SUMMARY: AddressSanitizer: 16 byte(s) leaked in 1 allocation(s).

Signed-off-by: Andrzej Hunt <andrzej@ahunt.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
4 years agobuiltin/mv: free or UNLEAK multiple pointers at end of cmd_mv
Andrzej Hunt [Sun, 25 Jul 2021 13:08:27 +0000 (15:08 +0200)] 
builtin/mv: free or UNLEAK multiple pointers at end of cmd_mv

These leaks all happen at the end of cmd_mv, hence don't matter in any
way. But we still fix the easy ones and squash the rest to get us closer
to being able to run tests without leaks.

LSAN output from t0050:

Direct leak of 384 byte(s) in 1 object(s) allocated from:
    #0 0x49ab49 in realloc ../projects/compiler-rt/lib/asan/asan_malloc_linux.cpp:164:3
    #1 0xa8c015 in xrealloc wrapper.c:126:8
    #2 0xa0a7e1 in add_entry string-list.c:44:2
    #3 0xa0a7e1 in string_list_insert string-list.c:58:14
    #4 0x5dac03 in cmd_mv builtin/mv.c:248:4
    #5 0x4ce83e in run_builtin git.c:475:11
    #6 0x4ccafe in handle_builtin git.c:729:3
    #7 0x4cb01c in run_argv git.c:818:4
    #8 0x4cb01c in cmd_main git.c:949:19
    #9 0x6bd9ad in main common-main.c:52:11
    #10 0x7fbfeffc4349 in __libc_start_main (/lib64/libc.so.6+0x24349)

Direct leak of 16 byte(s) in 1 object(s) allocated from:
    #0 0x49a82d in malloc ../projects/compiler-rt/lib/asan/asan_malloc_linux.cpp:145:3
    #1 0xa8bd09 in do_xmalloc wrapper.c:41:8
    #2 0x5dbc34 in internal_prefix_pathspec builtin/mv.c:32:2
    #3 0x5da575 in cmd_mv builtin/mv.c:158:14
    #4 0x4ce83e in run_builtin git.c:475:11
    #5 0x4ccafe in handle_builtin git.c:729:3
    #6 0x4cb01c in run_argv git.c:818:4
    #7 0x4cb01c in cmd_main git.c:949:19
    #8 0x6bd9ad in main common-main.c:52:11
    #9 0x7fbfeffc4349 in __libc_start_main (/lib64/libc.so.6+0x24349)

Direct leak of 16 byte(s) in 1 object(s) allocated from:
    #0 0x49a82d in malloc ../projects/compiler-rt/lib/asan/asan_malloc_linux.cpp:145:3
    #1 0xa8bd09 in do_xmalloc wrapper.c:41:8
    #2 0x5dbc34 in internal_prefix_pathspec builtin/mv.c:32:2
    #3 0x5da4e4 in cmd_mv builtin/mv.c:148:11
    #4 0x4ce83e in run_builtin git.c:475:11
    #5 0x4ccafe in handle_builtin git.c:729:3
    #6 0x4cb01c in run_argv git.c:818:4
    #7 0x4cb01c in cmd_main git.c:949:19
    #8 0x6bd9ad in main common-main.c:52:11
    #9 0x7fbfeffc4349 in __libc_start_main (/lib64/libc.so.6+0x24349)

Direct leak of 8 byte(s) in 1 object(s) allocated from:
    #0 0x49a9a2 in calloc ../projects/compiler-rt/lib/asan/asan_malloc_linux.cpp:154:3
    #1 0xa8c119 in xcalloc wrapper.c:140:8
    #2 0x5da585 in cmd_mv builtin/mv.c:159:22
    #3 0x4ce83e in run_builtin git.c:475:11
    #4 0x4ccafe in handle_builtin git.c:729:3
    #5 0x4cb01c in run_argv git.c:818:4
    #6 0x4cb01c in cmd_main git.c:949:19
    #7 0x6bd9ad in main common-main.c:52:11
    #8 0x7fbfeffc4349 in __libc_start_main (/lib64/libc.so.6+0x24349)

Direct leak of 4 byte(s) in 1 object(s) allocated from:
    #0 0x49a9a2 in calloc ../projects/compiler-rt/lib/asan/asan_malloc_linux.cpp:154:3
    #1 0xa8c119 in xcalloc wrapper.c:140:8
    #2 0x5da4f8 in cmd_mv builtin/mv.c:149:10
    #3 0x4ce83e in run_builtin git.c:475:11
    #4 0x4ccafe in handle_builtin git.c:729:3
    #5 0x4cb01c in run_argv git.c:818:4
    #6 0x4cb01c in cmd_main git.c:949:19
    #7 0x6bd9ad in main common-main.c:52:11
    #8 0x7fbfeffc4349 in __libc_start_main (/lib64/libc.so.6+0x24349)

Indirect leak of 65 byte(s) in 1 object(s) allocated from:
    #0 0x49ab49 in realloc ../projects/compiler-rt/lib/asan/asan_malloc_linux.cpp:164:3
    #1 0xa8c015 in xrealloc wrapper.c:126:8
    #2 0xa00226 in strbuf_grow strbuf.c:98:2
    #3 0xa00226 in strbuf_vaddf strbuf.c:394:3
    #4 0xa065c7 in xstrvfmt strbuf.c:981:2
    #5 0xa065c7 in xstrfmt strbuf.c:991:8
    #6 0x9e7ce7 in prefix_path_gently setup.c:115:15
    #7 0x9e7fa6 in prefix_path setup.c:128:12
    #8 0x5dbdbf in internal_prefix_pathspec builtin/mv.c:55:23
    #9 0x5da575 in cmd_mv builtin/mv.c:158:14
    #10 0x4ce83e in run_builtin git.c:475:11
    #11 0x4ccafe in handle_builtin git.c:729:3
    #12 0x4cb01c in run_argv git.c:818:4
    #13 0x4cb01c in cmd_main git.c:949:19
    #14 0x6bd9ad in main common-main.c:52:11
    #15 0x7fbfeffc4349 in __libc_start_main (/lib64/libc.so.6+0x24349)

Indirect leak of 65 byte(s) in 1 object(s) allocated from:
    #0 0x49ab49 in realloc ../projects/compiler-rt/lib/asan/asan_malloc_linux.cpp:164:3
    #1 0xa8c015 in xrealloc wrapper.c:126:8
    #2 0xa00226 in strbuf_grow strbuf.c:98:2
    #3 0xa00226 in strbuf_vaddf strbuf.c:394:3
    #4 0xa065c7 in xstrvfmt strbuf.c:981:2
    #5 0xa065c7 in xstrfmt strbuf.c:991:8
    #6 0x9e7ce7 in prefix_path_gently setup.c:115:15
    #7 0x9e7fa6 in prefix_path setup.c:128:12
    #8 0x5dbdbf in internal_prefix_pathspec builtin/mv.c:55:23
    #9 0x5da4e4 in cmd_mv builtin/mv.c:148:11
    #10 0x4ce83e in run_builtin git.c:475:11
    #11 0x4ccafe in handle_builtin git.c:729:3
    #12 0x4cb01c in run_argv git.c:818:4
    #13 0x4cb01c in cmd_main git.c:949:19
    #14 0x6bd9ad in main common-main.c:52:11
    #15 0x7fbfeffc4349 in __libc_start_main (/lib64/libc.so.6+0x24349)

SUMMARY: AddressSanitizer: 558 byte(s) leaked in 7 allocation(s).

Signed-off-by: Andrzej Hunt <andrzej@ahunt.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
4 years agoconvert: release strbuf to avoid leak
Andrzej Hunt [Sun, 25 Jul 2021 13:08:26 +0000 (15:08 +0200)] 
convert: release strbuf to avoid leak

apply_multi_file_filter and async_query_available_blobs both query
subprocess output using subprocess_read_status, which writes data into
the identically named filter_status strbuf. We add a strbuf_release to
avoid leaking their contents.

Leak output seen when running t0021 with LSAN:

Direct leak of 24 byte(s) in 1 object(s) allocated from:
    #0 0x49ab49 in realloc ../projects/compiler-rt/lib/asan/asan_malloc_linux.cpp:164:3
    #1 0xa8c2b5 in xrealloc wrapper.c:126:8
    #2 0x9ff99d in strbuf_grow strbuf.c:98:2
    #3 0x9ff99d in strbuf_addbuf strbuf.c:304:2
    #4 0xa101d6 in subprocess_read_status sub-process.c:45:5
    #5 0x77793c in apply_multi_file_filter convert.c:886:8
    #6 0x77793c in apply_filter convert.c:1042:10
    #7 0x77a0b5 in convert_to_git_filter_fd convert.c:1492:7
    #8 0x8b48cd in index_stream_convert_blob object-file.c:2156:2
    #9 0x8b48cd in index_fd object-file.c:2248:9
    #10 0x597411 in hash_fd builtin/hash-object.c:43:9
    #11 0x596be1 in hash_object builtin/hash-object.c:59:2
    #12 0x596be1 in cmd_hash_object builtin/hash-object.c:153:3
    #13 0x4ce83e in run_builtin git.c:475:11
    #14 0x4ccafe in handle_builtin git.c:729:3
    #15 0x4cb01c in run_argv git.c:818:4
    #16 0x4cb01c in cmd_main git.c:949:19
    #17 0x6bdc2d in main common-main.c:52:11
    #18 0x7f42acf79349 in __libc_start_main (/lib64/libc.so.6+0x24349)

SUMMARY: AddressSanitizer: 24 byte(s) leaked in 1 allocation(s).

Direct leak of 120 byte(s) in 5 object(s) allocated from:
    #0 0x49ab49 in realloc ../projects/compiler-rt/lib/asan/asan_malloc_linux.cpp:164:3
    #1 0xa8c295 in xrealloc wrapper.c:126:8
    #2 0x9ff97d in strbuf_grow strbuf.c:98:2
    #3 0x9ff97d in strbuf_addbuf strbuf.c:304:2
    #4 0xa101b6 in subprocess_read_status sub-process.c:45:5
    #5 0x775c73 in async_query_available_blobs convert.c:960:8
    #6 0x80029d in finish_delayed_checkout entry.c:183:9
    #7 0xa65d1e in check_updates unpack-trees.c:493:10
    #8 0xa5f469 in unpack_trees unpack-trees.c:1747:8
    #9 0x525971 in checkout builtin/clone.c:815:6
    #10 0x525971 in cmd_clone builtin/clone.c:1409:8
    #11 0x4ce83e in run_builtin git.c:475:11
    #12 0x4ccafe in handle_builtin git.c:729:3
    #13 0x4cb01c in run_argv git.c:818:4
    #14 0x4cb01c in cmd_main git.c:949:19
    #15 0x6bdc2d in main common-main.c:52:11
    #16 0x7fa253fce349 in __libc_start_main (/lib64/libc.so.6+0x24349)

SUMMARY: AddressSanitizer: 120 byte(s) leaked in 5 allocation(s).

Signed-off-by: Andrzej Hunt <andrzej@ahunt.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
4 years agoread-cache: call diff_setup_done to avoid leak
Andrzej Hunt [Sun, 25 Jul 2021 13:08:25 +0000 (15:08 +0200)] 
read-cache: call diff_setup_done to avoid leak

repo_diff_setup() calls through to diff.c's static prep_parse_options(),
which in  turn allocates a new array into diff_opts.parseopts.
diff_setup_done() is responsible for freeing that array, and has the
benefit of verifying diff_opts too - hence we add a call to
diff_setup_done() to avoid leaking parseopts.

Output from the leak as found while running t0090 with LSAN:

Direct leak of 7120 byte(s) in 1 object(s) allocated from:
    #0 0x49a82d in malloc ../projects/compiler-rt/lib/asan/asan_malloc_linux.cpp:145:3
    #1 0xa8bf89 in do_xmalloc wrapper.c:41:8
    #2 0x7a7bae in prep_parse_options diff.c:5636:2
    #3 0x7a7bae in repo_diff_setup diff.c:4611:2
    #4 0x93716c in repo_index_has_changes read-cache.c:2518:3
    #5 0x872233 in unclean merge-ort-wrappers.c:12:14
    #6 0x872233 in merge_ort_recursive merge-ort-wrappers.c:53:6
    #7 0x5d5b11 in try_merge_strategy builtin/merge.c:752:12
    #8 0x5d0b6b in cmd_merge builtin/merge.c:1666:9
    #9 0x4ce83e in run_builtin git.c:475:11
    #10 0x4ccafe in handle_builtin git.c:729:3
    #11 0x4cb01c in run_argv git.c:818:4
    #12 0x4cb01c in cmd_main git.c:949:19
    #13 0x6bdc2d in main common-main.c:52:11
    #14 0x7f551eb51349 in __libc_start_main (/lib64/libc.so.6+0x24349)

SUMMARY: AddressSanitizer: 7120 byte(s) leaked in 1 allocation(s)

Signed-off-by: Andrzej Hunt <andrzej@ahunt.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
4 years agoref-filter: also free head for ATOM_HEAD to avoid leak
Andrzej Hunt [Sun, 25 Jul 2021 13:08:24 +0000 (15:08 +0200)] 
ref-filter: also free head for ATOM_HEAD to avoid leak

u.head is populated using resolve_refdup(), which returns a newly
allocated string - hence we also need to free() it.

Found while running t0041 with LSAN:

Direct leak of 16 byte(s) in 1 object(s) allocated from:
    #0 0x486804 in strdup ../projects/compiler-rt/lib/asan/asan_interceptors.cpp:452:3
    #1 0xa8be98 in xstrdup wrapper.c:29:14
    #2 0x9481db in head_atom_parser ref-filter.c:549:17
    #3 0x9408c7 in parse_ref_filter_atom ref-filter.c:703:30
    #4 0x9400e3 in verify_ref_format ref-filter.c:974:8
    #5 0x4f9e8b in print_ref_list builtin/branch.c:439:6
    #6 0x4f9e8b in cmd_branch builtin/branch.c:757:3
    #7 0x4ce83e in run_builtin git.c:475:11
    #8 0x4ccafe in handle_builtin git.c:729:3
    #9 0x4cb01c in run_argv git.c:818:4
    #10 0x4cb01c in cmd_main git.c:949:19
    #11 0x6bdc2d in main common-main.c:52:11
    #12 0x7f96edf86349 in __libc_start_main (/lib64/libc.so.6+0x24349)

SUMMARY: AddressSanitizer: 16 byte(s) leaked in 1 allocation(s).

Signed-off-by: Andrzej Hunt <andrzej@ahunt.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
4 years agodiffcore-rename: move old_dir/new_dir definition to plug leak
Andrzej Hunt [Sun, 25 Jul 2021 13:08:23 +0000 (15:08 +0200)] 
diffcore-rename: move old_dir/new_dir definition to plug leak

old_dir/new_dir are free()'d at the end of update_dir_rename_counts,
however if we return early we'll never free those strings. Therefore
we should move all new allocations after the possible early return,
avoiding a leak.

This seems like a fairly recent leak, that started happening since the
early-return was added in:
  1ad69eb0dc (diffcore-rename: compute dir_rename_counts in stages, 2021-02-27)

LSAN output from t0022:

Direct leak of 7 byte(s) in 1 object(s) allocated from:
    #0 0x486804 in strdup ../projects/compiler-rt/lib/asan/asan_interceptors.cpp:452:3
    #1 0xa71e48 in xstrdup wrapper.c:29:14
    #2 0x7db9c7 in update_dir_rename_counts diffcore-rename.c:464:12
    #3 0x7db6ae in find_renames diffcore-rename.c:1062:3
    #4 0x7d76c3 in diffcore_rename_extended diffcore-rename.c:1472:18
    #5 0x7b4cfc in diffcore_std diff.c:6705:4
    #6 0x855e46 in log_tree_diff_flush log-tree.c:846:2
    #7 0x856574 in log_tree_diff log-tree.c:955:3
    #8 0x856574 in log_tree_commit log-tree.c:986:10
    #9 0x9a9c67 in print_commit_summary sequencer.c:1329:7
    #10 0x52e623 in cmd_commit builtin/commit.c:1862:3
    #11 0x4ce83e in run_builtin git.c:475:11
    #12 0x4ccafe in handle_builtin git.c:729:3
    #13 0x4cb01c in run_argv git.c:818:4
    #14 0x4cb01c in cmd_main git.c:949:19
    #15 0x6b3f3d in main common-main.c:52:11
    #16 0x7fe397c7a349 in __libc_start_main (/lib64/libc.so.6+0x24349)

Direct leak of 7 byte(s) in 1 object(s) allocated from:
    #0 0x486804 in strdup ../projects/compiler-rt/lib/asan/asan_interceptors.cpp:452:3
    #1 0xa71e48 in xstrdup wrapper.c:29:14
    #2 0x7db9bc in update_dir_rename_counts diffcore-rename.c:463:12
    #3 0x7db6ae in find_renames diffcore-rename.c:1062:3
    #4 0x7d76c3 in diffcore_rename_extended diffcore-rename.c:1472:18
    #5 0x7b4cfc in diffcore_std diff.c:6705:4
    #6 0x855e46 in log_tree_diff_flush log-tree.c:846:2
    #7 0x856574 in log_tree_diff log-tree.c:955:3
    #8 0x856574 in log_tree_commit log-tree.c:986:10
    #9 0x9a9c67 in print_commit_summary sequencer.c:1329:7
    #10 0x52e623 in cmd_commit builtin/commit.c:1862:3
    #11 0x4ce83e in run_builtin git.c:475:11
    #12 0x4ccafe in handle_builtin git.c:729:3
    #13 0x4cb01c in run_argv git.c:818:4
    #14 0x4cb01c in cmd_main git.c:949:19
    #15 0x6b3f3d in main common-main.c:52:11
    #16 0x7fe397c7a349 in __libc_start_main (/lib64/libc.so.6+0x24349)

SUMMARY: AddressSanitizer: 14 byte(s) leaked in 2 allocation(s).

Signed-off-by: Andrzej Hunt <andrzej@ahunt.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
4 years agobuiltin/for-each-repo: remove unnecessary argv copy to plug leak
Andrzej Hunt [Sun, 25 Jul 2021 13:08:22 +0000 (15:08 +0200)] 
builtin/for-each-repo: remove unnecessary argv copy to plug leak

cmd_for_each_repo() copies argv into args (a strvec), which is later
passed into run_command_on_repo(), which in turn copies that strvec onto
the end of child.args. The initial copy is unnecessary (we never modify
args). We therefore choose to just pass argv directly into
run_command_on_repo(), which lets us avoid the copy and fixes the leak.

LSAN output from t0068:

Direct leak of 192 byte(s) in 1 object(s) allocated from:
    #0 0x7f63bd4ab8b0 in realloc (/usr/lib64/libasan.so.4+0xdc8b0)
    #1 0x98d7e6 in xrealloc wrapper.c:126
    #2 0x916914 in strvec_push_nodup strvec.c:19
    #3 0x916a6e in strvec_push strvec.c:26
    #4 0x4be4eb in cmd_for_each_repo builtin/for-each-repo.c:49
    #5 0x410dcd in run_builtin git.c:475
    #6 0x410dcd in handle_builtin git.c:729
    #7 0x414087 in run_argv git.c:818
    #8 0x414087 in cmd_main git.c:949
    #9 0x40e9ec in main common-main.c:52
    #10 0x7f63bc9fa349 in __libc_start_main (/lib64/libc.so.6+0x24349)

Indirect leak of 22 byte(s) in 2 object(s) allocated from:
    #0 0x7f63bd445e30 in __interceptor_strdup (/usr/lib64/libasan.so.4+0x76e30)
    #1 0x98d698 in xstrdup wrapper.c:29
    #2 0x916a63 in strvec_push strvec.c:26
    #3 0x4be4eb in cmd_for_each_repo builtin/for-each-repo.c:49
    #4 0x410dcd in run_builtin git.c:475
    #5 0x410dcd in handle_builtin git.c:729
    #6 0x414087 in run_argv git.c:818
    #7 0x414087 in cmd_main git.c:949
    #8 0x40e9ec in main common-main.c:52
    #9 0x7f63bc9fa349 in __libc_start_main (/lib64/libc.so.6+0x24349)

See also discussion about the original implementation below - this code
appears to have evolved from a callback explaining the double-strvec-copy
pattern, but there's no strong reason to keep that now:
  https://lore.kernel.org/git/68bbeca5-314b-08ee-ef36-040e3f3814e9@gmail.com/

Signed-off-by: Andrzej Hunt <andrzej@ahunt.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
4 years agobuiltin/submodule--helper: release unused strbuf to avoid leak
Andrzej Hunt [Sun, 25 Jul 2021 13:08:21 +0000 (15:08 +0200)] 
builtin/submodule--helper: release unused strbuf to avoid leak

relative_url() populates sb. In the normal return path, its buffer is
detached using strbuf_detach(). However the early return path does
nothing with sb, which means that sb's memory is leaked - therefore
we add a release to avoid this leak.

The reset is also only necessary for the normal return path, hence we
move it down to after the early-return to avoid unnecessary work.

LSAN output from t0060:

Direct leak of 121 byte(s) in 1 object(s) allocated from:
    #0 0x7f31246f28b0 in realloc (/usr/lib64/libasan.so.4+0xdc8b0)
    #1 0x98d7d6 in xrealloc wrapper.c:126
    #2 0x909a60 in strbuf_grow strbuf.c:98
    #3 0x90bf00 in strbuf_vaddf strbuf.c:401
    #4 0x90c321 in strbuf_addf strbuf.c:335
    #5 0x5cb78d in relative_url builtin/submodule--helper.c:182
    #6 0x5cbe46 in resolve_relative_url_test builtin/submodule--helper.c:248
    #7 0x410dcd in run_builtin git.c:475
    #8 0x410dcd in handle_builtin git.c:729
    #9 0x414087 in run_argv git.c:818
    #10 0x414087 in cmd_main git.c:949
    #11 0x40e9ec in main common-main.c:52
    #12 0x7f3123c41349 in __libc_start_main (/lib64/libc.so.6+0x24349)

SUMMARY: AddressSanitizer: 121 byte(s) leaked in 1 allocation(s).

Signed-off-by: Andrzej Hunt <andrzej@ahunt.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
4 years agoenvironment: move strbuf into block to plug leak
Andrzej Hunt [Sun, 25 Jul 2021 13:08:20 +0000 (15:08 +0200)] 
environment: move strbuf into block to plug leak

realpath is only populated if we execute the git_work_tree_initialized
block. However that block also causes us to return early, meaning we
never actually release the strbuf in the case where we populated it.
Therefore we move all strbuf related code into the block to guarantee
that we can't leak it.

LSAN output from t0095:

Direct leak of 129 byte(s) in 1 object(s) allocated from:
    #0 0x49a9b9 in realloc ../projects/compiler-rt/lib/asan/asan_malloc_linux.cpp:164:3
    #1 0x78f585 in xrealloc wrapper.c:126:8
    #2 0x713ff4 in strbuf_grow strbuf.c:98:2
    #3 0x713ff4 in strbuf_getcwd strbuf.c:597:3
    #4 0x4f0c18 in strbuf_realpath_1 abspath.c:99:7
    #5 0x5ae4a4 in set_git_work_tree environment.c:259:3
    #6 0x6fdd8a in setup_discovered_git_dir setup.c:931:2
    #7 0x6fdd8a in setup_git_directory_gently setup.c:1235:12
    #8 0x4cb50d in get_bloom_filter_for_commit t/helper/test-bloom.c:41:2
    #9 0x4cb50d in cmd__bloom t/helper/test-bloom.c:95:3
    #10 0x4caa1f in cmd_main t/helper/test-tool.c:124:11
    #11 0x4caded in main common-main.c:52:11
    #12 0x7f0869f02349 in __libc_start_main (/lib64/libc.so.6+0x24349)

SUMMARY: AddressSanitizer: 129 byte(s) leaked in 1 allocation(s).

It looks like this leak has existed since realpath was first added to
set_git_work_tree() in:
  3d7747e318 (real_path: remove unsafe API, 2020-03-10)

Signed-off-by: Andrzej Hunt <andrzej@ahunt.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
4 years agofmt-merge-msg: free newly allocated temporary strings when done
Andrzej Hunt [Sun, 25 Jul 2021 13:08:19 +0000 (15:08 +0200)] 
fmt-merge-msg: free newly allocated temporary strings when done

origin starts off pointing to somewhere within line, which is owned by
the caller. Later we might allocate a new string using xmemdupz() or
xstrfmt(). To avoid leaking these new strings, we introduce a to_free
pointer - which allows us to safely free the newly allocated string when
we're done (we cannot just free origin directly as it might still be
pointing to line).

LSAN output from t0090:

Direct leak of 8 byte(s) in 1 object(s) allocated from:
    #0 0x49a82d in malloc ../projects/compiler-rt/lib/asan/asan_malloc_linux.cpp:145:3
    #1 0xa71f49 in do_xmalloc wrapper.c:41:8
    #2 0xa720b0 in do_xmallocz wrapper.c:75:8
    #3 0xa720b0 in xmallocz wrapper.c:83:9
    #4 0xa720b0 in xmemdupz wrapper.c:99:16
    #5 0x8092ba in handle_line fmt-merge-msg.c:187:23
    #6 0x8092ba in fmt_merge_msg fmt-merge-msg.c:666:7
    #7 0x5ce2e6 in prepare_merge_message builtin/merge.c:1119:2
    #8 0x5ce2e6 in collect_parents builtin/merge.c:1215:3
    #9 0x5c9c1e in cmd_merge builtin/merge.c:1454:16
    #10 0x4ce83e in run_builtin git.c:475:11
    #11 0x4ccafe in handle_builtin git.c:729:3
    #12 0x4cb01c in run_argv git.c:818:4
    #13 0x4cb01c in cmd_main git.c:949:19
    #14 0x6b3fad in main common-main.c:52:11
    #15 0x7fb929620349 in __libc_start_main (/lib64/libc.so.6+0x24349)

SUMMARY: AddressSanitizer: 8 byte(s) leaked in 1 allocation(s).

Signed-off-by: Andrzej Hunt <andrzej@ahunt.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
4 years agoThe sixth batch
Junio C Hamano [Wed, 21 Jul 2021 20:32:38 +0000 (13:32 -0700)] 
The sixth batch

Signed-off-by: Junio C Hamano <gitster@pobox.com>
4 years agoMerge branch 'bc/rev-list-without-commit-line'
Junio C Hamano [Thu, 22 Jul 2021 20:05:56 +0000 (13:05 -0700)] 
Merge branch 'bc/rev-list-without-commit-line'

"git rev-list" learns to omit the "commit <object-name>" header
lines from the output with the `--no-commit-header` option.

* bc/rev-list-without-commit-line:
  rev-list: add option for --pretty=format without header

4 years agoMerge branch 'ab/imap-send-read-everything-simplify'
Junio C Hamano [Thu, 22 Jul 2021 20:05:56 +0000 (13:05 -0700)] 
Merge branch 'ab/imap-send-read-everything-simplify'

Code simplification.

* ab/imap-send-read-everything-simplify:
  imap-send.c: use less verbose strbuf_fread() idiom

4 years agoMerge branch 'ab/gitignore-discovery-doc'
Junio C Hamano [Thu, 22 Jul 2021 20:05:55 +0000 (13:05 -0700)] 
Merge branch 'ab/gitignore-discovery-doc'

Doc update.

* ab/gitignore-discovery-doc:
  docs: .gitignore parsing is to the top of the repo

4 years agoMerge branch 'js/ci-windows-update'
Junio C Hamano [Thu, 22 Jul 2021 20:05:55 +0000 (13:05 -0700)] 
Merge branch 'js/ci-windows-update'

GitHub Actions / CI update.

* js/ci-windows-update:
  ci: accelerate the checkout
  ci (vs-build): build with NO_GETTEXT
  artifacts-tar: respect NO_GETTEXT
  ci (windows): transfer also the Git-tracked files to the test jobs
  ci: upgrade to using actions/{up,down}load-artifacts v2
  ci (vs-build): use `cmd` to copy the DLLs, not `powershell`
  ci: use the new GitHub Action to download git-sdk-64-minimal

4 years agoMerge branch 'ab/send-email-optim'
Junio C Hamano [Thu, 22 Jul 2021 20:05:54 +0000 (13:05 -0700)] 
Merge branch 'ab/send-email-optim'

"git send-email" optimization.

* ab/send-email-optim:
  perl: nano-optimize by replacing Cwd::cwd() with Cwd::getcwd()
  send-email: move trivial config handling to Perl
  perl: lazily load some common Git.pm setup code
  send-email: lazily load modules for a big speedup
  send-email: get rid of indirect object syntax
  send-email: use function syntax instead of barewords
  send-email: lazily shell out to "git var"
  send-email: lazily load config for a big speedup
  send-email: copy "config_regxp" into git-send-email.perl
  send-email: refactor sendemail.smtpencryption config parsing
  send-email: remove non-working support for "sendemail.smtpssl"
  send-email tests: test for boolean variables without a value
  send-email tests: support GIT_TEST_PERL_FATAL_WARNINGS=true

4 years agoMerge branch 'jk/typofix'
Junio C Hamano [Thu, 22 Jul 2021 20:05:53 +0000 (13:05 -0700)] 
Merge branch 'jk/typofix'

Typofix.

* jk/typofix:
  doc/rev-list-options: fix duplicate word typo

4 years agoThe fifth batch
Junio C Hamano [Fri, 16 Jul 2021 23:56:24 +0000 (16:56 -0700)] 
The fifth batch

Signed-off-by: Junio C Hamano <gitster@pobox.com>
4 years agoMerge branch 'ds/gender-neutral-doc'
Junio C Hamano [Sat, 17 Jul 2021 00:42:53 +0000 (17:42 -0700)] 
Merge branch 'ds/gender-neutral-doc'

Update the documentation not to assume users are of certain gender
and adds to guidelines to do so.

* ds/gender-neutral-doc:
  *: fix typos
  comments: avoid using the gender of our users
  doc: avoid using the gender of other people

4 years agoMerge branch 'jt/partial-clone-submodule-1'
Junio C Hamano [Sat, 17 Jul 2021 00:42:53 +0000 (17:42 -0700)] 
Merge branch 'jt/partial-clone-submodule-1'

Prepare the internals for lazily fetching objects in submodules
from their promisor remotes.

* jt/partial-clone-submodule-1:
  promisor-remote: teach lazy-fetch in any repo
  run-command: refactor subprocess env preparation
  submodule: refrain from filtering GIT_CONFIG_COUNT
  promisor-remote: support per-repository config
  repository: move global r_f_p_c to repo struct

4 years agoMerge branch 'ab/struct-init'
Junio C Hamano [Sat, 17 Jul 2021 00:42:52 +0000 (17:42 -0700)] 
Merge branch 'ab/struct-init'

Code cleanup around struct_type_init() functions.

* ab/struct-init:
  string-list.h users: change to use *_{nodup,dup}()
  string-list.[ch]: add a string_list_init_{nodup,dup}()
  dir.[ch]: replace dir_init() with DIR_INIT
  *.c *_init(): define in terms of corresponding *_INIT macro
  *.h: move some *_INIT to designated initializers

4 years agoMerge branch 'dd/test-stdout-count-lines'
Junio C Hamano [Sat, 17 Jul 2021 00:42:52 +0000 (17:42 -0700)] 
Merge branch 'dd/test-stdout-count-lines'

Tiny test clean-up.

* dd/test-stdout-count-lines:
  t6402: preserve git exit status code
  t6400: preserve git ls-files exit status code
  test-lib-functions: introduce test_stdout_line_count

4 years agoMerge branch 'hn/refs-test-cleanup'
Junio C Hamano [Sat, 17 Jul 2021 00:42:52 +0000 (17:42 -0700)] 
Merge branch 'hn/refs-test-cleanup'

Test clean-up.

* hn/refs-test-cleanup:
  t7509: avoid direct file access for writing CHERRY_PICK_HEAD
  t1415: avoid direct filesystem access for writing refs

4 years agoMerge branch 'rs/khash-alloc-cleanup'
Junio C Hamano [Sat, 17 Jul 2021 00:42:51 +0000 (17:42 -0700)] 
Merge branch 'rs/khash-alloc-cleanup'

Code clean-up.

* rs/khash-alloc-cleanup:
  khash: clarify that allocations never fail

4 years agoMerge branch 'ar/help-micro-cleanup'
Junio C Hamano [Sat, 17 Jul 2021 00:42:51 +0000 (17:42 -0700)] 
Merge branch 'ar/help-micro-cleanup'

Tiny code clean-up.

* ar/help-micro-cleanup:
  help: convert git_cmd to page in one place

4 years agoMerge branch 'ar/submodule-helper-include-cleanup'
Junio C Hamano [Sat, 17 Jul 2021 00:42:51 +0000 (17:42 -0700)] 
Merge branch 'ar/submodule-helper-include-cleanup'

Code clean-up.

* ar/submodule-helper-include-cleanup:
  submodule--helper: remove redundant include

4 years agoMerge branch 'ab/bundle-updates'
Junio C Hamano [Sat, 17 Jul 2021 00:42:49 +0000 (17:42 -0700)] 
Merge branch 'ab/bundle-updates'

Code clean-up and leak plugging in "git bundle".

* ab/bundle-updates:
  bundle: remove "ref_list" in favor of string-list.c API
  bundle.c: use a temporary variable for OIDs and names
  bundle cmd: stop leaking memory from parse_options_cmd_bundle()

4 years agoMerge branch 'hn/refs-iterator-peel-returns-boolean'
Junio C Hamano [Sat, 17 Jul 2021 00:42:49 +0000 (17:42 -0700)] 
Merge branch 'hn/refs-iterator-peel-returns-boolean'

Tiny API tweak.

* hn/refs-iterator-peel-returns-boolean:
  refs: make explicit that ref_iterator_peel returns boolean

4 years agoMerge branch 'ab/mktag-tests'
Junio C Hamano [Sat, 17 Jul 2021 00:42:48 +0000 (17:42 -0700)] 
Merge branch 'ab/mktag-tests'

Fill test gaps.

* ab/mktag-tests:
  mktag tests: test fast-export
  mktag tests: test for-each-ref
  mktag tests: test update-ref and reachable fsck
  mktag tests: test hash-object --literally and unreachable fsck
  mktag tests: invert --no-strict test
  mktag tests: parse out options in helper

4 years agoMerge branch 'ab/show-branch-tests'
Junio C Hamano [Sat, 17 Jul 2021 00:42:48 +0000 (17:42 -0700)] 
Merge branch 'ab/show-branch-tests'

Fill test gaps.

* ab/show-branch-tests:
  show-branch tests: add missing tests
  show-branch: don't <COLOR></RESET> for space characters
  show-branch tests: modernize test code
  show-branch tests: rename the one "show-branch" test file

4 years agoMerge branch 'ab/fetch-negotiate-segv-fix'
Junio C Hamano [Sat, 17 Jul 2021 00:42:48 +0000 (17:42 -0700)] 
Merge branch 'ab/fetch-negotiate-segv-fix'

Code recently added to support common ancestry negotiation during
"git push" did not sanity check its arguments carefully enough.

* ab/fetch-negotiate-segv-fix:
  fetch: fix segfault in --negotiate-only without --negotiation-tip=*
  fetch: document the --negotiate-only option
  send-pack.c: move "no refs in common" abort earlier

4 years agoMerge branch 'ab/make-delete-on-error'
Junio C Hamano [Sat, 17 Jul 2021 00:42:47 +0000 (17:42 -0700)] 
Merge branch 'ab/make-delete-on-error'

Use ".DELETE_ON_ERROR" pseudo target to simplify our Makefile.

* ab/make-delete-on-error:
  Makefile: add and use the ".DELETE_ON_ERROR" flag

4 years agoMerge branch 'ew/mmap-failures'
Junio C Hamano [Sat, 17 Jul 2021 00:42:47 +0000 (17:42 -0700)] 
Merge branch 'ew/mmap-failures'

Error message update.

* ew/mmap-failures:
  xmmap: inform Linux users of tuning knobs on ENOMEM

4 years agoMerge branch 'js/config-mak-windows-pcre-fix'
Junio C Hamano [Sat, 17 Jul 2021 00:42:47 +0000 (17:42 -0700)] 
Merge branch 'js/config-mak-windows-pcre-fix'

Whitespace fix.

* js/config-mak-windows-pcre-fix:
  config.mak.uname: PCRE1 cleanup

4 years agoMerge branch 'js/gfw-system-config-loc-fix'
Junio C Hamano [Sat, 17 Jul 2021 00:42:46 +0000 (17:42 -0700)] 
Merge branch 'js/gfw-system-config-loc-fix'

Update the location of system-side configuration file on Windows.

* js/gfw-system-config-loc-fix:
  config: normalize the path of the system gitconfig
  cmake(windows): set correct path to the system Git config
  mingw: move Git for Windows' system config where users expect it

4 years agoMerge branch 'ks/submodule-cleanup'
Junio C Hamano [Sat, 17 Jul 2021 00:42:46 +0000 (17:42 -0700)] 
Merge branch 'ks/submodule-cleanup'

Code cleanup.

* ks/submodule-cleanup:
  submodule: remove unnecessary `prefix` based option logic

4 years agoMerge branch 'tb/midx-use-checksum'
Junio C Hamano [Sat, 17 Jul 2021 00:42:46 +0000 (17:42 -0700)] 
Merge branch 'tb/midx-use-checksum'

When rebuilding the multi-pack index file reusing an existing one,
we used to blindly trust the existing file and ended up carrying
corrupted data into the updated file, which has been corrected.

* tb/midx-use-checksum:
  midx: report checksum mismatches during 'verify'
  midx: don't reuse corrupt MIDXs when writing
  commit-graph: rewrite to use checksum_valid()
  csum-file: introduce checksum_valid()

4 years agoMerge branch 'en/merge-dir-rename-corner-case-fix'
Junio C Hamano [Sat, 17 Jul 2021 00:42:45 +0000 (17:42 -0700)] 
Merge branch 'en/merge-dir-rename-corner-case-fix'

The merge code had funny interactions between content based rename
detection and directory rename detection.

* en/merge-dir-rename-corner-case-fix:
  merge-recursive: handle rename-to-self case
  merge-ort: ensure we consult df_conflict and path_conflicts
  t6423: test directory renames causing rename-to-self

4 years agoMerge branch 'en/ort-perf-batch-13'
Junio C Hamano [Sat, 17 Jul 2021 00:42:45 +0000 (17:42 -0700)] 
Merge branch 'en/ort-perf-batch-13'

Performance tweaks of "git merge -sort" around lazy fetching of objects.

* en/ort-perf-batch-13:
  merge-ort: add prefetching for content merges
  diffcore-rename: use a different prefetch for basename comparisons
  diffcore-rename: allow different missing_object_cb functions
  t6421: add tests checking for excessive object downloads during merge
  promisor-remote: output trace2 statistics for number of objects fetched

4 years agoMerge branch 'en/ort-perf-batch-12'
Junio C Hamano [Sat, 17 Jul 2021 00:42:45 +0000 (17:42 -0700)] 
Merge branch 'en/ort-perf-batch-12'

More fix-ups and optimization to "merge -sort".

* en/ort-perf-batch-12:
  merge-ort: miscellaneous touch-ups
  Fix various issues found in comments
  diffcore-rename: avoid unnecessary strdup'ing in break_idx
  merge-ort: replace string_list_df_name_compare with faster alternative

4 years agoThe fourth batch
Junio C Hamano [Tue, 13 Jul 2021 23:52:11 +0000 (16:52 -0700)] 
The fourth batch

Signed-off-by: Junio C Hamano <gitster@pobox.com>
4 years agoMerge branch 'rs/grep-parser-fix'
Junio C Hamano [Tue, 13 Jul 2021 23:52:53 +0000 (16:52 -0700)] 
Merge branch 'rs/grep-parser-fix'

"git grep --and -e foo" ought to have been diagnosed as an error
but instead segfaulted, which has been corrected.

* rs/grep-parser-fix:
  grep: report missing left operand of --and

4 years agoMerge branch 'bk/doc-commit-typofix'
Junio C Hamano [Tue, 13 Jul 2021 23:52:52 +0000 (16:52 -0700)] 
Merge branch 'bk/doc-commit-typofix'

Doc typo/grammo-fix.

* bk/doc-commit-typofix:
  Documentation: fix typo in the --patch option of the commit command

4 years agoMerge branch 'dc/p4-binary-submit-fix'
Junio C Hamano [Tue, 13 Jul 2021 23:52:52 +0000 (16:52 -0700)] 
Merge branch 'dc/p4-binary-submit-fix'

Prevent "git p4" from failing to submit changes to binary file.

* dc/p4-binary-submit-fix:
  git-p4: fix failed submit by skip non-text data files

4 years agoMerge branch 'ab/pre-auto-gc-hook-test'
Junio C Hamano [Tue, 13 Jul 2021 23:52:52 +0000 (16:52 -0700)] 
Merge branch 'ab/pre-auto-gc-hook-test'

Test fix.

* ab/pre-auto-gc-hook-test:
  gc tests: add a test for the "pre-auto-gc" hook

4 years agoMerge branch 'jk/union-merge-binary'
Junio C Hamano [Tue, 13 Jul 2021 23:52:51 +0000 (16:52 -0700)] 
Merge branch 'jk/union-merge-binary'

The "union" conflict resolution variant misbehaved when used with
binary merge driver.

* jk/union-merge-binary:
  ll_union_merge(): rename path_unused parameter
  ll_union_merge(): pass name labels to ll_xdl_merge()
  ll_binary_merge(): handle XDL_MERGE_FAVOR_UNION

4 years agoMerge branch 'mr/cmake'
Junio C Hamano [Tue, 13 Jul 2021 23:52:51 +0000 (16:52 -0700)] 
Merge branch 'mr/cmake'

CMake update.

* mr/cmake:
  cmake: add warning for ignored MSGFMT_EXE
  cmake: create compile_commands.json by default
  cmake: add knob to disable vcpkg

4 years agoMerge branch 'ab/describe-tests-fix'
Junio C Hamano [Tue, 13 Jul 2021 23:52:51 +0000 (16:52 -0700)] 
Merge branch 'ab/describe-tests-fix'

Various updates to tests around "git describe"

* ab/describe-tests-fix:
  describe tests: support -C in "check_describe"
  describe tests: fix nested "test_expect_success" call
  describe tests: don't rely on err.actual from "check_describe"
  describe tests: refactor away from glob matching
  describe tests: improve test for --work-tree & --dirty

4 years agoMerge branch 'ab/pickaxe-pcre2'
Junio C Hamano [Tue, 13 Jul 2021 23:52:50 +0000 (16:52 -0700)] 
Merge branch 'ab/pickaxe-pcre2'

Rewrite the backend for "diff -G/-S" to use pcre2 engine when
available.

* ab/pickaxe-pcre2: (22 commits)
  xdiff-interface: replace discard_hunk_line() with a flag
  xdiff users: use designated initializers for out_line
  pickaxe -G: don't special-case create/delete
  pickaxe -G: terminate early on matching lines
  xdiff-interface: allow early return from xdiff_emit_line_fn
  xdiff-interface: prepare for allowing early return
  pickaxe -S: slightly optimize contains()
  pickaxe: rename variables in has_changes() for brevity
  pickaxe -S: support content with NULs under --pickaxe-regex
  pickaxe: assert that we must have a needle under -G or -S
  pickaxe: refactor function selection in diffcore-pickaxe()
  perf: add performance test for pickaxe
  pickaxe/style: consolidate declarations and assignments
  diff.h: move pickaxe fields together again
  pickaxe: die when --find-object and --pickaxe-all are combined
  pickaxe: die when -G and --pickaxe-regex are combined
  pickaxe tests: add missing test for --no-pickaxe-regex being an error
  pickaxe tests: test for -G, -S and --find-object incompatibility
  pickaxe tests: add test for "log -S" not being a regex
  pickaxe tests: add test for diffgrep_consume() internals
  ...

4 years agoMerge branch 'hn/prep-tests-for-reftable'
Junio C Hamano [Tue, 13 Jul 2021 23:52:50 +0000 (16:52 -0700)] 
Merge branch 'hn/prep-tests-for-reftable'

Preliminary clean-up of tests before the main reftable changes
hits the codebase.

* hn/prep-tests-for-reftable: (22 commits)
  t1415: set REFFILES for test specific to storage format
  t4202: mark bogus head hash test with REFFILES
  t7003: check reflog existence only for REFFILES
  t7900: stop checking for loose refs
  t1404: mark tests that muck with .git directly as REFFILES.
  t2017: mark --orphan/logAllRefUpdates=false test as REFFILES
  t1414: mark corruption test with REFFILES
  t1407: require REFFILES for for_each_reflog test
  test-lib: provide test prereq REFFILES
  t5304: use "reflog expire --all" to clear the reflog
  t5304: restyle: trim empty lines, drop ':' before >
  t7003: use rev-parse rather than FS inspection
  t5000: inspect HEAD using git-rev-parse
  t5000: reformat indentation to the latest fashion
  t1301: fix typo in error message
  t1413: use tar to save and restore entire .git directory
  t1401-symbolic-ref: avoid direct filesystem access
  t1401: use tar to snapshot and restore repo state
  t5601: read HEAD using rev-parse
  t9300: check ref existence using test-helper rather than a file system check
  ...

4 years agoMerge branch 'fc/push-simple-updates-cleanup'
Junio C Hamano [Tue, 13 Jul 2021 23:52:50 +0000 (16:52 -0700)] 
Merge branch 'fc/push-simple-updates-cleanup'

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

* fc/push-simple-updates-cleanup:
  push: don't get a full remote object
  push: only check same_remote when needed
  push: remove trivial function
  push: remove redundant check
  push: factor out the typical case
  push: get rid of all the setup_push_* functions
  push: trivial simplifications
  push: make setup_push_* return the dst
  push: only get the branch when needed
  push: factor out null branch check
  push: split switch cases
  push: return immediately in trivial switch case
  push: create new get_upstream_ref() helper

4 years agoMerge branch 'fc/push-simple-updates'
Junio C Hamano [Tue, 13 Jul 2021 23:52:49 +0000 (16:52 -0700)] 
Merge branch 'fc/push-simple-updates'

Some code and doc clarification around "git push".

* fc/push-simple-updates:
  doc: push: explain default=simple correctly
  push: remove unused code in setup_push_upstream()
  push: simplify setup_push_simple()
  push: reorganize setup_push_simple()
  push: copy code to setup_push_simple()
  push: hedge code of default=simple
  push: rename !triangular to same_remote

4 years agoMerge branch 'zh/cat-file-batch-fix'
Junio C Hamano [Tue, 13 Jul 2021 23:52:49 +0000 (16:52 -0700)] 
Merge branch 'zh/cat-file-batch-fix'

"git cat-file --batch-all-objects"" misbehaved when "--batch" is in
use and did not ask for certain object traits.

* zh/cat-file-batch-fix:
  cat-file: merge two block into one
  cat-file: handle trivial --batch format with --batch-all-objects

4 years agodoc/rev-list-options: fix duplicate word typo
Jeff King [Tue, 13 Jul 2021 22:31:26 +0000 (18:31 -0400)] 
doc/rev-list-options: fix duplicate word typo

Reported-by: Jason Hatton <jhatton@globalfinishing.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
4 years agorev-list: add option for --pretty=format without header
brian m. carlson [Sun, 11 Jul 2021 21:55:10 +0000 (21:55 +0000)] 
rev-list: add option for --pretty=format without header

In general, we encourage users to use plumbing commands, like git
rev-list, over porcelain commands, like git log, when scripting.
However, git rev-list has one glaring problem that prevents it from
being used in certain cases: when --pretty is used with a custom format,
it always prints out a line containing "commit" and the object ID.  This
makes it unsuitable for many scripting needs, and forces users to use
git log instead.

While we can't change this behavior for backwards compatibility, we can
add an option to suppress this behavior, so let's do so, and call it
"--no-commit-header".  Additionally, add the corresponding positive
option to switch it back on.

Note that this option doesn't affect the built-in formats, only custom
formats.  This is exactly the same behavior as users already have from
git log and is what most users will be used to.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
4 years agoThe third batch
Junio C Hamano [Thu, 8 Jul 2021 20:14:36 +0000 (13:14 -0700)] 
The third batch

Signed-off-by: Junio C Hamano <gitster@pobox.com>
4 years agoMerge branch 'js/stop-exporting-bogus-columns'
Junio C Hamano [Thu, 8 Jul 2021 20:15:06 +0000 (13:15 -0700)] 
Merge branch 'js/stop-exporting-bogus-columns'

When we cannot figure out how wide the terminal is, we use a
fallback value of 80 ourselves (which cannot be avoided), but when
we run the pager, we export it in COLUMNS, which forces the pager
to use the hardcoded value, even when the pager is perfectly
capable to figure it out itself.  Stop exporting COLUMNS when we
fall back on the hardcoded default value for our own use.

* js/stop-exporting-bogus-columns:
  pager: avoid setting COLUMNS when we're guessing its value

4 years agoMerge branch 'dd/document-log-decorate-default'
Junio C Hamano [Thu, 8 Jul 2021 20:15:05 +0000 (13:15 -0700)] 
Merge branch 'dd/document-log-decorate-default'

Doc clean-up.

* dd/document-log-decorate-default:
  doc/log: correct default for --decorate

4 years agoMerge branch 'ar/test-code-cleanup'
Junio C Hamano [Thu, 8 Jul 2021 20:15:05 +0000 (13:15 -0700)] 
Merge branch 'ar/test-code-cleanup'

Test code clean-up.

* ar/test-code-cleanup:
  t: fix whitespace around &&

4 years agoMerge branch 'ba/object-info'
Junio C Hamano [Thu, 8 Jul 2021 20:15:05 +0000 (13:15 -0700)] 
Merge branch 'ba/object-info'

Code clean-up.

* ba/object-info:
  protocol-caps.h: add newline at end of file

4 years agoMerge branch 'ab/progress-cleanup'
Junio C Hamano [Thu, 8 Jul 2021 20:15:04 +0000 (13:15 -0700)] 
Merge branch 'ab/progress-cleanup'

Code clean-up.

* ab/progress-cleanup:
  read-cache.c: don't guard calls to progress.c API

4 years agoMerge branch 'ab/xdiff-bug-cleanup'
Junio C Hamano [Thu, 8 Jul 2021 20:15:04 +0000 (13:15 -0700)] 
Merge branch 'ab/xdiff-bug-cleanup'

Code clean-up.

* ab/xdiff-bug-cleanup:
  xdiff: use BUG(...), not xdl_bug(...)

4 years agoMerge branch 'ms/mergetools-kdiff3-on-windows'
Junio C Hamano [Thu, 8 Jul 2021 20:15:04 +0000 (13:15 -0700)] 
Merge branch 'ms/mergetools-kdiff3-on-windows'

On Windows, mergetool has been taught to find kdiff3.exe just like
it finds winmerge.exe.

* ms/mergetools-kdiff3-on-windows:
  mergetools/kdiff3: make kdiff3 work on Windows too

4 years agoMerge branch 'ab/cmd-foo-should-return'
Junio C Hamano [Thu, 8 Jul 2021 20:15:04 +0000 (13:15 -0700)] 
Merge branch 'ab/cmd-foo-should-return'

Code clean-up.

* ab/cmd-foo-should-return:
  builtins + test helpers: use return instead of exit() in cmd_*

4 years agoMerge branch 'ar/doc-libera-chat-in-my-first-contrib'
Junio C Hamano [Thu, 8 Jul 2021 20:15:03 +0000 (13:15 -0700)] 
Merge branch 'ar/doc-libera-chat-in-my-first-contrib'

Update MyFirst document.

* ar/doc-libera-chat-in-my-first-contrib:
  MyFirstContribution: link #git-devel to Libera Chat

4 years agoMerge branch 'ar/mailinfo-memcmp-to-skip-prefix'
Junio C Hamano [Thu, 8 Jul 2021 20:15:03 +0000 (13:15 -0700)] 
Merge branch 'ar/mailinfo-memcmp-to-skip-prefix'

Code clean-up.

* ar/mailinfo-memcmp-to-skip-prefix:
  mailinfo: use starts_with() when checking scissors

4 years agoMerge branch 'jk/doc-max-pack-size'
Junio C Hamano [Thu, 8 Jul 2021 20:15:03 +0000 (13:15 -0700)] 
Merge branch 'jk/doc-max-pack-size'

Doc update.

* jk/doc-max-pack-size:
  doc: warn people against --max-pack-size

4 years agoMerge branch 'ab/fix-columns-to-80-during-tests'
Junio C Hamano [Thu, 8 Jul 2021 20:15:02 +0000 (13:15 -0700)] 
Merge branch 'ab/fix-columns-to-80-during-tests'

Output from some of our tests were affected by the width of the
terminal that they were run in, which has been corrected by
exporting a fixed value in the COLUMNS environment.

* ab/fix-columns-to-80-during-tests:
  test-lib.sh: set COLUMNS=80 for --verbose repeatability

4 years agoMerge branch 'ar/more-typofix'
Junio C Hamano [Thu, 8 Jul 2021 20:15:02 +0000 (13:15 -0700)] 
Merge branch 'ar/more-typofix'

Typofixes.

* ar/more-typofix:
  git-worktree.txt: fix typo in example path
  t: fix typos in test messages
  blame: correct name of config option in docs

4 years agoMerge branch 'fw/complete-cmd-idx-fix'
Junio C Hamano [Thu, 8 Jul 2021 20:15:02 +0000 (13:15 -0700)] 
Merge branch 'fw/complete-cmd-idx-fix'

Recent update to completion script (in contrib/) broke those who
use the __git_complete helper to define completion to their custom
command.

* fw/complete-cmd-idx-fix:
  completion: bash: fix late declaration of __git_cmd_idx

4 years agoMerge branch 'jk/test-without-readlink-1'
Junio C Hamano [Thu, 8 Jul 2021 20:15:02 +0000 (13:15 -0700)] 
Merge branch 'jk/test-without-readlink-1'

Some test scripts assumed that readlink(1) was universally
installed and available, which is not the case.

* jk/test-without-readlink-1:
  t: use portable wrapper for readlink(1)

4 years agoMerge branch 'jx/sideband-cleanup'
Junio C Hamano [Thu, 8 Jul 2021 20:15:01 +0000 (13:15 -0700)] 
Merge branch 'jx/sideband-cleanup'

The side-band demultiplexer that is used to display progress output
from the remote end did not clear the line properly when the end of
line hits at a packet boundary, which has been corrected.  Also
comes with test clean-ups.

* jx/sideband-cleanup:
  test: refactor to use "get_abbrev_oid" to get abbrev oid
  test: refactor to use "test_commit" to create commits
  test: compare raw output, not mangle tabs and spaces
  sideband: don't lose clear-to-eol at packet boundary

4 years agoMerge branch 'jk/test-avoid-globmatch-with-skip-patterns'
Junio C Hamano [Thu, 8 Jul 2021 20:15:01 +0000 (13:15 -0700)] 
Merge branch 'jk/test-avoid-globmatch-with-skip-patterns'

We broke "GIT_SKIP_TESTS=t?000" to skip certain tests in recent
update, which got fixed.

* jk/test-avoid-globmatch-with-skip-patterns:
  test-lib: avoid accidental globbing in match_pattern_list()

4 years agoMerge branch 'jv/userdiff-csharp-update'
Junio C Hamano [Thu, 8 Jul 2021 20:15:01 +0000 (13:15 -0700)] 
Merge branch 'jv/userdiff-csharp-update'

The userdiff pattern for C# learned the token "record".

* jv/userdiff-csharp-update:
  userdiff: add support for C# record types

4 years agoMerge branch 'ab/config-hooks-path-testfix'
Junio C Hamano [Thu, 8 Jul 2021 20:15:00 +0000 (13:15 -0700)] 
Merge branch 'ab/config-hooks-path-testfix'

Test fix.

* ab/config-hooks-path-testfix:
  pre-commit hook tests: don't leave "actual" nonexisting on failure

4 years agoMerge branch 'fc/pull-cleanups'
Junio C Hamano [Thu, 8 Jul 2021 20:15:00 +0000 (13:15 -0700)] 
Merge branch 'fc/pull-cleanups'

Code cleanup.

* fc/pull-cleanups:
  pull: trivial whitespace style fix
  pull: trivial cleanup
  pull: cleanup autostash check

4 years agoMerge branch 'jk/bitmap-tree-optim'
Junio C Hamano [Thu, 8 Jul 2021 20:15:00 +0000 (13:15 -0700)] 
Merge branch 'jk/bitmap-tree-optim'

Avoid duplicated work while building reachability bitmaps.

* jk/bitmap-tree-optim:
  bitmaps: don't recurse into trees already in the bitmap

4 years agoMerge branch 'ah/graph-typofix'
Junio C Hamano [Thu, 8 Jul 2021 20:15:00 +0000 (13:15 -0700)] 
Merge branch 'ah/graph-typofix'

Typofix in an error message.

* ah/graph-typofix:
  graph: improve grammar of "invalid color" error message

4 years agoMerge branch 'jx/t6020-with-older-bash'
Junio C Hamano [Thu, 8 Jul 2021 20:14:59 +0000 (13:14 -0700)] 
Merge branch 'jx/t6020-with-older-bash'

Work around inefficient glob substitution in older versions of bash
by rewriting parts of a test.

* jx/t6020-with-older-bash:
  t6020: fix incompatible parameter expansion

4 years agoMerge branch 'ar/typofix'
Junio C Hamano [Thu, 8 Jul 2021 20:14:59 +0000 (13:14 -0700)] 
Merge branch 'ar/typofix'

Typofixes.

* ar/typofix:
  *: fix typos which duplicate a word

4 years agoMerge branch 'jk/revision-squelch-gcc-warning'
Junio C Hamano [Thu, 8 Jul 2021 20:14:59 +0000 (13:14 -0700)] 
Merge branch 'jk/revision-squelch-gcc-warning'

Warning fix.

* jk/revision-squelch-gcc-warning:
  add_pending_object_with_path(): work around "gcc -O3" complaint

4 years agoMerge branch 'ah/uninitialized-reads-fix'
Junio C Hamano [Thu, 8 Jul 2021 20:14:58 +0000 (13:14 -0700)] 
Merge branch 'ah/uninitialized-reads-fix'

Make the codebase MSAN clean.

* ah/uninitialized-reads-fix:
  builtin/checkout--worker: zero-initialise struct to avoid MSAN complaints
  split-index: use oideq instead of memcmp to compare object_id's
  bulk-checkin: make buffer reuse more obvious and safer

4 years agoMerge branch 'js/no-more-multimail'
Junio C Hamano [Thu, 8 Jul 2021 20:14:58 +0000 (13:14 -0700)] 
Merge branch 'js/no-more-multimail'

Remove multimail from contrib/

* js/no-more-multimail:
  multimail: stop shipping a copy

4 years agoMerge branch 'js/subtree-on-windows-fix'
Junio C Hamano [Thu, 8 Jul 2021 20:14:58 +0000 (13:14 -0700)] 
Merge branch 'js/subtree-on-windows-fix'

Update "git subtree" to work better on Windows.

* js/subtree-on-windows-fix:
  subtree: fix assumption about the directory separator
  subtree: fix the GIT_EXEC_PATH sanity check to work on Windows

4 years agoMerge branch 'dd/svn-test-wo-locale-a'
Junio C Hamano [Thu, 8 Jul 2021 20:14:58 +0000 (13:14 -0700)] 
Merge branch 'dd/svn-test-wo-locale-a'

"git-svn" tests assumed that "locale -a", which is used to pick an
available UTF-8 locale, is available everywhere.  A knob has been
introduced to allow testers to specify a suitable locale to use.

* dd/svn-test-wo-locale-a:
  t: use user-specified utf-8 locale for testing svn

4 years agoMerge branch 'fc/doc-default-to-upstream-config'
Junio C Hamano [Thu, 8 Jul 2021 20:14:57 +0000 (13:14 -0700)] 
Merge branch 'fc/doc-default-to-upstream-config'

Doc clean-up.

* fc/doc-default-to-upstream-config:
  doc: merge: mention default of defaulttoupstream

4 years agoMerge branch 'js/trace2-discard-event-docfix'
Junio C Hamano [Thu, 8 Jul 2021 20:14:57 +0000 (13:14 -0700)] 
Merge branch 'js/trace2-discard-event-docfix'

Docfix.

* js/trace2-discard-event-docfix:
  docs: fix api-trace2 doc for "too_many_files" event

4 years agoMerge branch 'tb/complete-diff-anchored'
Junio C Hamano [Thu, 8 Jul 2021 20:14:56 +0000 (13:14 -0700)] 
Merge branch 'tb/complete-diff-anchored'

The command line completion (in contrib/) learned that "git diff"
takes the "--anchored" option.

* tb/complete-diff-anchored:
  completion: add --anchored to diff's options

4 years agoMerge branch 'tk/partial-clone-repack-doc'
Junio C Hamano [Thu, 8 Jul 2021 20:14:56 +0000 (13:14 -0700)] 
Merge branch 'tk/partial-clone-repack-doc'

Docfix.

* tk/partial-clone-repack-doc:
  Remove warning that repack only works on non-promisor packfiles

4 years agofetch: fix segfault in --negotiate-only without --negotiation-tip=*
Ævar Arnfjörð Bjarmason [Thu, 8 Jul 2021 10:53:15 +0000 (12:53 +0200)] 
fetch: fix segfault in --negotiate-only without --negotiation-tip=*

The recent --negotiate-only option would segfault in the call to
oid_array_for_each() in negotiate_using_fetch() unless one or more
--negotiation-tip=* options were provided.

All of the other tests for the feature combine both, but nothing was
checking this assumption, let's do that and add a test for it. Fixes a
bug in 9c1e657a8fd (fetch: teach independent negotiation (no
packfile), 2021-05-04).

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
4 years agoimap-send.c: use less verbose strbuf_fread() idiom
Ævar Arnfjörð Bjarmason [Wed, 7 Jul 2021 09:05:24 +0000 (11:05 +0200)] 
imap-send.c: use less verbose strbuf_fread() idiom

When looking for things that hardcoded a non-zero "hint" parameter to
strbuf_fread() I discovered that since f2561fda364 (Add git-imap-send,
derived from isync 1.0.1., 2006-03-10) we've been passing a hardcoded
4096 in imap-send.c to read stdin.

Since we're not doing anything unusual here let's use a less verbose
pattern used in a lot of other places (the hint of "0" will default to
8192). We don't need to take a FILE * here either, so we can use "0"
instead of "stdin". While we're at it improve the error message if we
can't read the input to use error_errno().

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
4 years agodocs: .gitignore parsing is to the top of the repo
Andrew Berry [Tue, 6 Jul 2021 20:57:12 +0000 (16:57 -0400)] 
docs: .gitignore parsing is to the top of the repo

The current documentation reads as if .gitignore files will be parsed in
every parent directory, and not until they reach a repository boundary.
This clarifies the current behaviour.

As well, this corrects 'toplevel' to 'top-level', matching usage for
'top-level domain'.

Signed-off-by: Andrew Berry <andrew@furrypaws.ca>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
4 years agosubmodule--helper: remove redundant include
Atharva Raykar [Tue, 6 Jul 2021 18:24:08 +0000 (23:54 +0530)] 
submodule--helper: remove redundant include

"dir.h" should have been included only once.

Signed-off-by: Atharva Raykar <raykar.ath@gmail.com>
Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Shourya Shukla <periperidip@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
4 years agohelp: convert git_cmd to page in one place
Andrei Rybak [Sun, 4 Jul 2021 15:39:12 +0000 (17:39 +0200)] 
help: convert git_cmd to page in one place

Depending on the chosen format of help pages, git-help uses function
show_man_page, show_info_page, or show_html_page.  The first thing all
three functions do is to convert given `git_cmd` to a `page` using
function cmd_to_page.

Move the common part of these three functions to function cmd_help to
avoid code duplication.

Signed-off-by: Andrei Rybak <rybak.a.v@gmail.com>
Reviewed-by: Felipe Contreras <felipe.contreras@gmail.com>
Acked-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
4 years agokhash: clarify that allocations never fail
René Scharfe [Sat, 3 Jul 2021 12:57:30 +0000 (14:57 +0200)] 
khash: clarify that allocations never fail

We use our standard allocation functions and macros (xcalloc,
ALLOC_ARRAY, REALLOC_ARRAY) in our version of khash.h.  They terminate
the program on error instead, so code that's using them doesn't have to
handle allocation failures.  Make this behavior explicit by turning
kh_resize_ into a void function and removing the related unreachable
error handling code.

Helped-by: Jeff King <peff@peff.net>
Signed-off-by: René Scharfe <l.s.r@web.de>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
4 years agot7509: avoid direct file access for writing CHERRY_PICK_HEAD
Han-Wen Nienhuys [Tue, 6 Jul 2021 18:47:57 +0000 (18:47 +0000)] 
t7509: avoid direct file access for writing CHERRY_PICK_HEAD

Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
4 years agot1415: avoid direct filesystem access for writing refs
Han-Wen Nienhuys [Tue, 6 Jul 2021 18:47:56 +0000 (18:47 +0000)] 
t1415: avoid direct filesystem access for writing refs

Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
4 years agot6402: preserve git exit status code
Đoàn Trần Công Danh [Sun, 4 Jul 2021 05:46:12 +0000 (12:46 +0700)] 
t6402: preserve git exit status code

In t6402, we're checking number of files in the index and the working
tree by piping the output of Git's command to "wc -l", thus losing the
exit status code of git.

Let's use the new helper test_stdout_line_count in order to preserve
Git's exit status code.

Signed-off-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>