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2021-12-13chainlint.sed: drop subshell-closing ">" annotationLibravatar Eric Sunshine39-89/+80
chainlint.sed inserts a ">" annotation at the beginning of a line to signal that its heuristics have identified an end-of-subshell. This was useful as a debugging aid during development of the script, but it has no value to test writers and might even confuse them into thinking that the linter is misbehaving by inserting line-noise into the shell code it is validating. Moreover, its presence also potentially makes it difficult to reuse the chainlint self-test "expect" output should a more capable linter ever be developed. Therefore, drop the ">" annotation. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-12-13chainlint.sed: drop unnecessary distinction between ?!AMP?! and ?!SEMI?!Libravatar Eric Sunshine5-25/+24
>From inception, when chainlint.sed encountered a line using semicolon to separate commands rather than `&&`, it would insert a ?!SEMI?! annotation at the beginning of the line rather ?!AMP?! even though the &&-chain is also broken by the semicolon. Given a line such as: ?!SEMI?! cmd1; cmd2 && the ?!SEMI?! annotation makes it easier to see what the problem is than if the output had been: ?!AMP?! cmd1; cmd2 && which might confuse the test author into thinking that the linter is broken (since the line clearly ends with `&&`). However, now that the ?!AMP?! an ?!SEMI?! annotations are inserted at the point of breakage rather than at the beginning of the line, and taking into account that both represent a broken &&-chain, there is little reason to distinguish between the two. Using ?!AMP?! alone is sufficient to point the test author at the problem. For instance, in: cmd1; ?!AMP?! cmd2 && cmd3 it is clear that the &&-chain is broken between `cmd1` and `cmd2`. Likewise, in: cmd1 && cmd2 ?!AMP?! cmd3 it is clear that the &&-chain is broken between `cmd2` and `cmd3`. Finally, in: cmd1; ?!AMP?! cmd2 ?!AMP?! cmd3 it is clear that the &&-chain is broken between each command. Hence, there is no longer a good reason to make a distinction between a broken &&-chain due to a semicolon and a broken chain due to a missing `&&` at end-of-line. Therefore, drop the ?!SEMI?! annotation and use ?!AMP?! exclusively. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-12-13chainlint.sed: tolerate harmless ";" at end of last line in blockLibravatar Eric Sunshine2-7/+8
chainlint.sed flags ";" when used as a command terminator since it breaks the &&-chain, thus can allow failures to go undetected. However, when a command terminated by ";" is the last command in the body of a compound statement, such as `command-2` in: if test $# -gt 1 then command-1 && command-2; fi then the ";" is harmless and the exit code from `command-2` is passed through untouched and becomes the exit code of the compound statement, as if the ";" was not present. Therefore, tolerate a trailing ";" in this position rather than complaining about broken &&-chain. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-12-13chainlint.sed: improve ?!SEMI?! placement accuracyLibravatar Eric Sunshine5-18/+18
When chainlint.sed detects commands separated by a semicolon rather than by `&&`, it places a ?!SEMI?! annotation at the beginning of the line. However, this is an unusual location for programmers accustomed to error messages (from compilers, for instance) indicating the exact point of the problem. Therefore, relocate the ?!SEMI?! annotation to the location of the semicolon in order to better direct the programmer's attention to the source of the problem. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-12-13chainlint.sed: improve ?!AMP?! placement accuracyLibravatar Eric Sunshine23-38/+38
When chainlint.sed detects a broken &&-chain, it places an ?!AMP?! annotation at the beginning of the line. However, this is an unusual location for programmers accustomed to error messages (from compilers, for instance) indicating the exact point of the problem. Therefore, relocate the ?!AMP?! annotation to the end of the line in order to better direct the programmer's attention to the source of the problem. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-12-13t/Makefile: optimize chainlint self-testLibravatar Eric Sunshine1-6/+4
Rather than running `chainlint` and `diff` once per self-test -- which may become expensive as more tests are added -- instead run `chainlint` a single time over all tests bodies collectively and compare the result to the collective "expected" output. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-12-13t/chainlint/one-liner: avoid overly intimate chainlint.sed knowledgeLibravatar Eric Sunshine2-2/+2
The purpose of chainlint.sed is to detect &&-chain breakage only within subshells (one level deep); it doesn't bother checking for top-level &&-chain breakage since the &&-chain checker built into t/test-lib.sh should detect broken &&-chains outside of subshells by making them magically exit with code 117. Unfortunately, one of the chainlint.sed self-tests has overly intimate knowledge of this particular division of responsibilities and only cares about what chainlint.sed itself will produce, while ignoring the fact that a more all-encompassing linter would complain about a broken &&-chain outside the subshell. This makes it difficult to re-use the test with a more capable chainlint implementation should one ever be developed. Therefore, adjust the test and its "expected" output to avoid being specific to the tunnel-vision of this one implementation. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-12-13t/chainlint/*.test: generalize self-test commentaryLibravatar Eric Sunshine6-9/+6
The purpose of chainlint.sed is to detect &&-chain breakage only within subshells (one level deep); it doesn't bother checking for top-level &&-chain breakage since the &&-chain checker built into t/test-lib.sh should detect broken &&-chains outside of subshells by making them magically exit with code 117. However, this division of labor may not always be the case if a more capable chainlint implementation is ever developed. Beyond that, due to being sed-based and due to its use of heuristics, chainlint.sed has several limitations (such as being unable to detect &&-chain breakage in subshells more than one level deep since it only manually emulates recursion into a subshell). Some of the comments in the chainlint self-tests unnecessarily reflect the limitations of chainlint.sed even though those limitations are not what is being tested. Therefore, simplify and generalize the comments to explain only what is being tested, thus ensuring that they won't become outdated if a more capable chainlint is ever developed. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-12-13t/chainlint/*.test: fix invalid test cases due to mixing quote typesLibravatar Eric Sunshine20-70/+38
The chainlint self-test code snippets are supposed to represent the body of a test_expect_success() or test_expect_failure(), yet the contents of a few tests would have caused the shell to report syntax errors had they been real test bodies due to the mix of single- and double-quotes. Although chainlint.sed, with its simplistic heuristics, is blind to this problem, a future more robust chainlint implementation might not have such a limitation. Therefore, stop mixing quote types haphazardly in those tests and unify quoting throughout. While at it, drop chunks of tests which merely repeat what is already tested elsewhere but with alternative quotes. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-12-13t/chainlint/*.test: don't use invalid shell syntaxLibravatar Eric Sunshine3-4/+6
The chainlint self-test code snippets are supposed to represent the body of a test_expect_success() or test_expect_failure(), yet the contents of these tests would have caused the shell to report syntax errors had they been real test bodies. Although chainlint.sed, with its simplistic heuristics, is blind to these syntactic problems, a future more robust chainlint implementation might not have such a limitation, so make these snippets syntactically valid. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-12-10The second batchLibravatar Junio C Hamano1-0/+99
2021-12-10Merge branch 'en/rebase-x-fix'Libravatar Junio C Hamano2-2/+7
"git rebase -x" added an unnecessary 'exec' instructions before 'noop', which has been corrected. * en/rebase-x-fix: sequencer: avoid adding exec commands for non-commit creating commands
2021-12-10Merge branch 'cb/add-p-single-key-fix'Libravatar Junio C Hamano1-7/+9
The single-key-input mode in "git add -p" had some code to handle keys that generate a sequence of input via ReadKey(), which did not handle end-of-file correctly, which has been fixed. * cb/add-p-single-key-fix: add -p: avoid use of undefined $key when ReadKey -> EOF
2021-12-10Merge branch 'cb/mingw-gmtime-r'Libravatar Junio C Hamano2-1/+5
Build fix on Windows. * cb/mingw-gmtime-r: mingw: avoid fallback for {local,gm}time_r()
2021-12-10Merge branch 'yn/complete-date-format-options'Libravatar Junio C Hamano1-1/+1
The completion script (in contrib/) learns that the "--date" option of commands from the "git log" family takes "human" and "auto" as valid values. * yn/complete-date-format-options: completion: add human and auto: date format
2021-12-10Merge branch 'em/missing-pager'Libravatar Junio C Hamano2-1/+8
When a non-existent program is given as the pager, we tried to reuse an uninitialized child_process structure and crashed, which has been fixed. * em/missing-pager: pager: fix crash when pager program doesn't exist
2021-12-10Merge branch 'mp/absorb-submodule-git-dir-upon-deinit'Libravatar Junio C Hamano2-16/+16
"git submodule deinit" for a submodule whose .git metadata directory is embedded in its working tree refused to work, until the submodule gets converted to use the "absorbed" form where the metadata directory is stored in superproject, and a gitfile at the top-level of the working tree of the submodule points at it. The command is taught to convert such submodules to the absorbed form as needed. * mp/absorb-submodule-git-dir-upon-deinit: submodule: absorb git dir instead of dying on deinit
2021-12-10Merge branch 'bc/require-c99'Libravatar Junio C Hamano3-2/+15
Weather balloon to break people with compilers that do not support C99. * bc/require-c99: git-compat-util: add a test balloon for C99 support
2021-12-10Merge branch 'hn/create-reflog-simplify'Libravatar Junio C Hamano10-21/+16
A small simplification of API. * hn/create-reflog-simplify: refs: drop force_create argument of create_reflog API
2021-12-10Merge branch 'jt/midx-doc-fix'Libravatar Junio C Hamano1-5/+0
Docfix. * jt/midx-doc-fix: Doc: no midx and partial clone relation
2021-12-10Merge branch 'jk/t7006-sigpipe-tests-fix'Libravatar Junio C Hamano2-50/+23
The function to cull a child process and determine the exit status had two separate code paths for normal callers and callers in a signal handler, and the latter did not yield correct value when the child has caught a signal. The handling of the exit status has been unified for these two code paths. An existing test with flakiness has also been corrected. * jk/t7006-sigpipe-tests-fix: t7006: simplify exit-code checks for sigpipe tests t7006: clean up SIGPIPE handling in trace2 tests run-command: unify signal and regular logic for wait_or_whine()
2021-12-10Merge branch 'jk/refs-g11-workaround'Libravatar Junio C Hamano1-0/+7
Workaround for a false-alarm by gcc-11 * jk/refs-g11-workaround: refs: work around gcc-11 warning with REF_HAVE_NEW
2021-12-10Merge branch 'jk/fetch-pack-avoid-sigpipe-to-index-pack'Libravatar Junio C Hamano1-0/+5
"git fetch", when received a bad packfile, can fail with SIGPIPE. This wasn't wrong per-se, but we now detect the situation and fail in a more predictable way. * jk/fetch-pack-avoid-sigpipe-to-index-pack: fetch-pack: ignore SIGPIPE when writing to index-pack
2021-12-10Merge branch 'hk/ci-checkwhitespace-commentfix'Libravatar Junio C Hamano1-2/+3
Comment fix. * hk/ci-checkwhitespace-commentfix: ci(check-whitespace): update stale file top comments
2021-12-10Merge branch 'vd/sparse-reset'Libravatar Junio C Hamano8-37/+356
Various operating modes of "git reset" have been made to work better with the sparse index. * vd/sparse-reset: unpack-trees: improve performance of next_cache_entry reset: make --mixed sparse-aware reset: make sparse-aware (except --mixed) reset: integrate with sparse index reset: expand test coverage for sparse checkouts sparse-index: update command for expand/collapse test reset: preserve skip-worktree bit in mixed reset reset: rename is_missing to !is_in_reset_tree
2021-12-10Merge branch 'tl/midx-docfix'Libravatar Junio C Hamano1-6/+6
Doc mark-up fix. * tl/midx-docfix: midx: fix a formatting issue in "multi-pack-index.txt"
2021-12-10Merge branch 'po/size-t-for-vs'Libravatar Junio C Hamano3-5/+5
On platforms where ulong is shorter than size_t, code paths that shifted 1 or 1U to the left lacked the necessary cast to size_t, which have been corrected. * po/size-t-for-vs: object-file.c: LLP64 compatibility, upcast unity for left shift diffcore-delta.c: LLP64 compatibility, upcast unity for left shift repack.c: LLP64 compatibility, upcast unity for left shift
2021-12-10Merge branch 'rs/mergesort'Libravatar Junio C Hamano1-1/+1
Bitop fix for platforms whose "long" is 32-bit. * rs/mergesort: mergesort: avoid left shift overflow
2021-12-10Merge branch 'ah/advice-pull-has-no-preference-between-rebase-and-merge'Libravatar Junio C Hamano1-1/+1
The advice message given by "git pull" when the user hasn't made a choice between merge and rebase still said that the merge is the default, which no longer is the case. This has been corrected. * ah/advice-pull-has-no-preference-between-rebase-and-merge: pull: don't say that merge is "the default strategy"
2021-12-10Merge branch 'ab/checkout-branch-info-leakfix'Libravatar Junio C Hamano36-31/+98
Leakfix. * ab/checkout-branch-info-leakfix: checkout: fix "branch info" memory leaks
2021-12-10Merge branch 'jk/t5319-midx-corruption-test-deflake'Libravatar Junio C Hamano1-2/+4
Test fix. * jk/t5319-midx-corruption-test-deflake: t5319: corrupt more bytes of the midx checksum
2021-12-10Merge branch 'js/trace2-avoid-recursive-errors'Libravatar Junio C Hamano1-2/+7
trace2 error code path fix. * js/trace2-avoid-recursive-errors: trace2: disable tr2_dst before warning on write errors
2021-12-10Merge branch 'jt/pack-header-lshift-overflow'Libravatar Junio C Hamano1-1/+1
The code to decode the length of packed object size has been corrected. * jt/pack-header-lshift-overflow: packfile: avoid overflowing shift during decode
2021-12-10Merge branch 'jk/jump-merge-with-pathspec'Libravatar Junio C Hamano2-1/+4
The "merge" subcommand of "git jump" (in contrib/) silently ignored pathspec and other parameters. * jk/jump-merge-with-pathspec: git-jump: pass "merge" arguments to ls-files
2021-12-10Merge branch 'jk/test-bitmap-fix'Libravatar Junio C Hamano1-1/+1
Tighten code for testing pack-bitmap. * jk/test-bitmap-fix: test_bitmap_hashes(): handle repository without bitmaps
2021-12-10Merge branch 'ab/generate-command-list'Libravatar Junio C Hamano2-44/+56
Build optimization. * ab/generate-command-list: generate-cmdlist.sh: don't parse command-list.txt thrice generate-cmdlist.sh: replace "grep' invocation with a shell version generate-cmdlist.sh: do not shell out to "sed" generate-cmdlist.sh: stop sorting category lines generate-cmdlist.sh: replace for loop by printf's auto-repeat feature generate-cmdlist.sh: run "grep | sort", not "sort | grep" generate-cmdlist.sh: don't call get_categories() from category_list() generate-cmdlist.sh: spawn fewer processes generate-cmdlist.sh: trivial whitespace change command-list.txt: sort with "LC_ALL=C sort"
2021-12-10Merge branch 'tw/var-default-branch'Libravatar Junio C Hamano3-0/+30
"git var GIT_DEFAULT_BRANCH" is a way to see what name is used for the newly created branch if "git init" is run. * tw/var-default-branch: var: add GIT_DEFAULT_BRANCH variable
2021-12-10Merge branch 'jk/strbuf-addftime-seconds-since-epoch'Libravatar Junio C Hamano5-3/+20
The "--date=format:<strftime>" gained a workaround for the lack of system support for a non-local timezone to handle "%s" placeholder. * jk/strbuf-addftime-seconds-since-epoch: strbuf_addftime(): handle "%s" manually
2021-12-10Merge branch 'js/ci-no-directional-formatting'Libravatar Junio C Hamano2-0/+28
CI has been taught to catch some Unicode directional formatting sequence that can be used in certain mischief. * js/ci-no-directional-formatting: ci: disallow directional formatting
2021-12-10Merge branch 'jc/fix-first-object-walk'Libravatar Junio C Hamano1-5/+26
Doc update. * jc/fix-first-object-walk: docs: add headers in MyFirstObjectWalk docs: fix places that break compilation in MyFirstObjectWalk
2021-12-10Merge branch 'if/redact-packfile-uri'Libravatar Junio C Hamano6-5/+111
Redact the path part of packfile URI that appears in the trace output. * if/redact-packfile-uri: http-fetch: redact url on die() message fetch-pack: redact packfile urls in traces
2021-12-10Merge branch 'ja/doc-cleanup'Libravatar Junio C Hamano39-166/+168
Doc update. * ja/doc-cleanup: init doc: --shared=0xxx does not give umask but perm bits doc: git-init: clarify file modes in octal. doc: git-http-push: describe the refs as pattern pairs doc: uniformize <URL> placeholders' case doc: use three dots for indicating repetition instead of star doc: git-ls-files: express options as optional alternatives doc: use only hyphens as word separators in placeholders doc: express grammar placeholders between angle brackets doc: split placeholders as individual tokens doc: fix git credential synopsis
2021-12-10Merge branch 'gc/remote-with-fewer-static-global-variables'Libravatar Junio C Hamano5-113/+312
Code clean-up to eventually allow information on remotes defined for an arbitrary repository to be read. * gc/remote-with-fewer-static-global-variables: remote: die if branch is not found in repository remote: remove the_repository->remote_state from static methods remote: use remote_state parameter internally remote: move static variables into per-repository struct t5516: add test case for pushing remote refspecs
2021-12-10Merge branch 'vd/sparse-sparsity-fix-on-read'Libravatar Junio C Hamano5-17/+86
Ensure that the sparseness of the in-core index matches the index.sparse configuration specified by the repository immediately after the on-disk index file is read. * vd/sparse-sparsity-fix-on-read: sparse-index: update do_read_index to ensure correct sparsity sparse-index: add ensure_correct_sparsity function sparse-index: avoid unnecessary cache tree clearing test-read-cache.c: prepare_repo_settings after config init
2021-12-10Merge branch 'cw/protocol-v2-doc-fix'Libravatar Junio C Hamano1-3/+3
Doc update. * cw/protocol-v2-doc-fix: protocol-v2.txt: align delim-pkt spec with usage
2021-12-01git-compat-util: add a test balloon for C99 supportLibravatar brian m. carlson3-2/+15
The C99 standard was released in January 1999, now 22 years ago. It provides a variety of useful features, including variadic arguments for macros, declarations after statements, designated initializers, and a wide variety of other useful features, many of which we already use. We'd like to take advantage of these features, but we want to be cautious. As far as we know, all major compilers now support C99 or a later C standard, such as C11 or C17. POSIX has required C99 support as a requirement for the 2001 revision, so we can safely assume any POSIX system which we are interested in supporting has C99. Even MSVC, long a holdout against modern C, now supports both C11 and C17 with an appropriate update. Moreover, even if people are using an older version of MSVC on these systems, they will generally need some implementation of the standard Unix utilities for the testsuite, and GNU coreutils, the most common option, has required C99 since 2009. Therefore, we can safely assume that a suitable version of GCC or clang is available to users even if their version of MSVC is not sufficiently capable. Let's add a test balloon to git-compat-util.h to see if anyone is using an older compiler. We'll add a comment telling people how to enable this functionality on GCC and Clang, even though modern versions of both will automatically do the right thing, and ask people still experiencing a problem to report that to us on the list. Note that C89 compilers don't provide the __STDC_VERSION__ macro, so we use a well-known hack of using "- 0". On compilers with this macro, it doesn't change the value, and on C89 compilers, the macro will be replaced with nothing, and our value will be 0. For sparse, we explicitly request the gnu99 style because we've traditionally taken advantage of some GCC- and clang-specific extensions when available and we'd like to retain the ability to do that. sparse also defaults to C89 without it, so things will fail for us if we don't. Update the cmake configuration to require C11 for MSVC. We do this because this will make MSVC to use C11, since it does not explicitly support C99. We do this with a compiler options because setting the C_STANDARD option does not work in our CI on MSVC and at the moment, we don't want to require C11 for Unix compilers. In the Makefile, don't set any compiler flags for the compiler itself, since on some systems, such as FreeBSD, we actually need C11, and asking for C99 causes things to fail to compile. The error message should make it obvious what's going wrong and allow a user to set the appropriate option when building in the event they're using a Unix compiler that doesn't support it by default. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-12-01object-file.c: LLP64 compatibility, upcast unity for left shiftLibravatar Philip Oakley1-1/+1
Visual Studio reports C4334 "was 64-bit shift intended" warning because of size miss-match. Promote unity to the matching type to fit with the assignment. Signed-off-by: Philip Oakley <philipoakley@iee.email> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-12-01diffcore-delta.c: LLP64 compatibility, upcast unity for left shiftLibravatar Philip Oakley1-3/+3
Visual Studio reports C4334 "was 64-bit shift intended" warning because of size miss-match. Promote unity to the matching type to fit with its subsequent operation. Signed-off-by: Philip Oakley <philipoakley@iee.email> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-12-01repack.c: LLP64 compatibility, upcast unity for left shiftLibravatar Philip Oakley1-1/+1
Visual Studio reports C4334 "was 64-bit shift intended" warning because of size mismatch. Promote unity to the matching type to fit with the `&` operator. Signed-off-by: Philip Oakley <philipoakley@iee.email> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-11-29sequencer: avoid adding exec commands for non-commit creating commandsLibravatar Elijah Newren2-2/+7
The `--exec <cmd>` is documented as Append "exec <cmd>" after each line creating a commit in the final history. ... If --autosquash is used, "exec" lines will not be appended for the intermediate commits, and will only appear at the end of each squash/fixup series. Unfortunately, it would also add exec commands after non-pick operations, such as 'no-op', which could be seen for example with git rebase -i --exec true HEAD todo_list_add_exec_commands() intent was to insert exec commands after each logical pick, while trying to consider a chains of fixup and squash commits to be part of the pick before it. So it would keep an 'insert' boolean tracking if it had seen a pick or merge, but not write the exec command until it saw the next non-fixup/squash command. Since that would make it miss the final exec command, it had some code that would check whether it still needed to insert one at the end, but instead of a simple if (insert) it had a if (insert || <condition that is always true>) That's buggy; as per the docs, we should only add exec commands for lines that create commits, i.e. only if insert is true. Fix the conditional. There was one testcase in the testsuite that we tweak for this change; it was introduced in 54fd3243da ("rebase -i: reread the todo list if `exec` touched it", 2017-04-26), and was merely testing that after an exec had fired that the todo list would be re-read. The test at the time would have worked given any revision at all, though it would only work with 'HEAD' as a side-effect of this bug. Since we're fixing this bug, choose something other than 'HEAD' for that test. Finally, add a testcase that verifies when we have no commits to pick, that we get no exec lines in the generated todo list. Reported-by: Nikita Bobko <nikitabobko@gmail.com> Signed-off-by: Elijah Newren <newren@gmail.com> Acked-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>