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2021-12-15Merge branch 'ew/test-wo-fsync'Libravatar Junio C Hamano1-0/+1
Allow running our tests while disabling fsync. * ew/test-wo-fsync: tests: disable fsync everywhere
2021-12-10Merge branch 'vd/sparse-reset'Libravatar Junio C Hamano1-0/+10
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
2021-11-29reset: make sparse-aware (except --mixed)Libravatar Victoria Dye1-0/+10
Remove `ensure_full_index` guard on `prime_cache_tree` and update `prime_cache_tree_rec` to correctly reconstruct sparse directory entries in the cache tree. While processing a tree's entries, `prime_cache_tree_rec` must determine whether a directory entry is sparse or not by searching for it in the index (*without* expanding the index). If a matching sparse directory index entry is found, no subtrees are added to the cache tree entry and the entry count is set to 1 (representing the sparse directory itself). Otherwise, the tree is assumed to not be sparse and its subtrees are recursively added to the cache tree. Helped-by: Elijah Newren <newren@gmail.com> Signed-off-by: Victoria Dye <vdye@github.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-11-04strbuf_addftime(): handle "%s" manuallyLibravatar Jeff King1-0/+1
The strftime() function has a non-standard "%s" extension, which prints the number of seconds since the epoch. But the "struct tm" we get has already been adjusted for a particular time zone; going back to an epoch time requires knowing that zone offset. Since strftime() doesn't take such an argument, round-tripping to a "struct tm" and back to the "%s" format may produce the wrong value (off by tz_offset seconds). Since we're already passing in the zone offset courtesy of c3fbf81a85 (strbuf: let strbuf_addftime handle %z and %Z itself, 2017-06-15), we can use that same value to adjust our epoch seconds accordingly. Note that the description above makes it sound like strftime()'s "%s" is useless (and really, the issue is shared by mktime(), which is what strftime() would use under the hood). But it gets the two cases for which it's designed correct: - the result of gmtime() will have a zero offset, so no adjustment is necessary - the result of localtime() will be offset by the local zone offset, and mktime() and strftime() are defined to assume this offset when converting back (there's actually some magic here; some implementations record this in the "struct tm", but we can't portably access or manipulate it. But they somehow "know" whether a "struct tm" is from gmtime() or localtime()). This latter point means that "format-local:%s" actually works correctly already, because in that case we rely on the system routines due to 6eced3ec5e (date: use localtime() for "-local" time formats, 2017-06-15). Our problem comes when trying to show times in the author's zone, as the system routines provide no mechanism for converting in non-local zones. So in those cases we have a "struct tm" that came from gmtime(), but has been manipulated according to our offset. The tests cover the broken round-trip by formatting "%s" for a time in a non-system timezone. We use the made-up "+1234" here, which has two advantages. One, we know it won't ever be the real system zone (and so we're actually testing a case that would break). And two, since it has a minute component, we're testing the full decoding of the +HHMM zone into a number of seconds. Likewise, we test the "-1234" variant to make sure there aren't any sign mistakes. There's one final test, which covers "format-local:%s". As noted, this already passes, but it's important to check that we didn't regress this case. In particular, the caller in show_date() is relying on localtime() to have done the zone adjustment, independent of any tz_offset we compute ourselves. These should match up, since our local_tzoffset() is likewise built around localtime(). But it would be easy for a caller to forget to pass in a correct tz_offset to strbuf_addftime(). Fortunately show_date() does this correctly (it has to because of the existing handling of %z), and the test continues to pass. So this one is just future-proofing against a change in our assumptions. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-29tests: disable fsync everywhereLibravatar Eric Wong1-0/+1
The "GIT_TEST_FSYNC" environment variable now exists for disabling fsync() even on packfiles and other "critical" data. Running "make test -j8 NO_SVN_TESTS=1" on a noisy 8-core system on an HDD, test runtime drops from ~4 minutes down to ~3 minutes. Using "GIT_TEST_FSYNC=1" re-enables fsync() for comparison purposes. SVN interopability tests are minimally affected since SVN will still use fsync in various places. This will also be useful for 3rd-party tools which create throwaway git repositories of temporary data, but remains undocumented for end users. Signed-off-by: Eric Wong <e@80x24.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-25Merge branch 'ab/fix-commit-error-message-upon-unwritable-object-store'Libravatar Junio C Hamano1-0/+1
"git commit" gave duplicated error message when the object store was unwritable, which has been corrected. * ab/fix-commit-error-message-upon-unwritable-object-store: commit: fix duplication regression in permission error output unwritable tests: assert exact error output
2021-10-25Merge branch 'ab/fsck-unexpected-type'Libravatar Junio C Hamano1-3/+42
"git fsck" has been taught to report mismatch between expected and actual types of an object better. * ab/fsck-unexpected-type: fsck: report invalid object type-path combinations fsck: don't hard die on invalid object types object-file.c: stop dying in parse_loose_header() object-file.c: return ULHR_TOO_LONG on "header too long" object-file.c: use "enum" return type for unpack_loose_header() object-file.c: simplify unpack_loose_short_header() object-file.c: make parse_loose_header_extended() public object-file.c: return -1, not "status" from unpack_loose_header() object-file.c: don't set "typep" when returning non-zero cat-file tests: test for current --allow-unknown-type behavior cat-file tests: add corrupt loose object test cat-file tests: test for missing/bogus object with -t, -s and -p cat-file tests: move bogus_* variable declarations earlier fsck tests: test for garbage appended to a loose object fsck tests: test current hash/type mismatch behavior fsck tests: refactor one test to use a sub-repo fsck tests: add test for fsck-ing an unknown type
2021-10-12commit: fix duplication regression in permission error outputLibravatar Ævar Arnfjörð Bjarmason1-0/+1
Fix a regression in the error output emitted when .git/objects can't be written to. Before 9c4d6c0297b (cache-tree: Write updated cache-tree after commit, 2014-07-13) we'd emit only one "insufficient permission" error, now we'll do so again. The cause is rather straightforward, we've got WRITE_TREE_SILENT for the use-case of wanting to prepare an index silently, quieting any permission etc. error output. Then when we attempt to update to that (possibly broken) index we'll run into the same errors again. But with 9c4d6c0297b the gap between the cache-tree API and the object store wasn't closed in terms of asking write_object_file() to be silent. I.e. post-9c4d6c0297b the first call is to prepare_index(), and after that we'll call prepare_to_commit(). We only want verbose error output from the latter. So let's add and use that facility with a corresponding HASH_SILENT flag, its only user is cache-tree.c's update_one(), which will set it if its "WRITE_TREE_SILENT" flag is set. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-11Merge branch 'ab/designated-initializers'Libravatar Junio C Hamano1-1/+3
Code clean-up. * ab/designated-initializers: cbtree.h: define cb_init() in terms of CBTREE_INIT *.h: move some *_INIT to designated initializers *.h _INIT macros: don't specify fields equal to 0 *.[ch] *_INIT macros: use { 0 } for a "zero out" idiom submodule-config.h: remove unused SUBMODULE_INIT macro
2021-10-11Merge branch 'jk/ref-paranoia'Libravatar Junio C Hamano1-8/+0
The ref iteration code used to optionally allow dangling refs to be shown, which has been tightened up. * jk/ref-paranoia: refs: drop "broken" flag from for_each_fullref_in() ref-filter: drop broken-ref code entirely ref-filter: stop setting FILTER_REFS_INCLUDE_BROKEN repack, prune: drop GIT_REF_PARANOIA settings refs: turn on GIT_REF_PARANOIA by default refs: omit dangling symrefs when using GIT_REF_PARANOIA refs: add DO_FOR_EACH_OMIT_DANGLING_SYMREFS flag refs-internal.h: reorganize DO_FOR_EACH_* flag documentation refs-internal.h: move DO_FOR_EACH_* flags next to each other t5312: be more assertive about command failure t5312: test non-destructive repack t5312: create bogus ref as necessary t5312: drop "verbose" helper t5600: provide detached HEAD for corruption failures t5516: don't use HEAD ref for invalid ref-deletion tests t7900: clean up some more broken refs
2021-10-06Merge branch 'ab/repo-settings-cleanup'Libravatar Junio C Hamano1-7/+0
Code cleanup. * ab/repo-settings-cleanup: repository.h: don't use a mix of int and bitfields repo-settings.c: simplify the setup read-cache & fetch-negotiator: check "enum" values in switch() environment.c: remove test-specific "ignore_untracked..." variable wrapper.c: add x{un,}setenv(), and use xsetenv() in environment.c
2021-10-03Merge branch 'hn/refs-errno-cleanup'Libravatar Junio C Hamano1-43/+0
Futz with the way 'errno' is relied on in the refs API to carry the failure modes up the call chain. * hn/refs-errno-cleanup: refs: make errno output explicit for read_raw_ref_fn refs/files-backend: stop setting errno from lock_ref_oid_basic refs: remove EINVAL errno output from specification of read_raw_ref_fn refs file backend: move raceproof_create_file() here
2021-10-01fsck: report invalid object type-path combinationsLibravatar Ævar Arnfjörð Bjarmason1-1/+2
Improve the error that's emitted in cases where we find a loose object we parse, but which isn't at the location we expect it to be. Before this change we'd prefix the error with a not-a-OID derived from the path at which the object was found, due to an emergent behavior in how we'd end up with an "OID" in these codepaths. Now we'll instead say what object we hashed, and what path it was found at. Before this patch series e.g.: $ git hash-object --stdin -w -t blob </dev/null e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 $ mv objects/e6/ objects/e7 Would emit ("[...]" used to abbreviate the OIDs): git fsck error: hash mismatch for ./objects/e7/9d[...] (expected e79d[...]) error: e79d[...]: object corrupt or missing: ./objects/e7/9d[...] Now we'll instead emit: error: e69d[...]: hash-path mismatch, found at: ./objects/e7/9d[...] Furthermore, we'll do the right thing when the object type and its location are bad. I.e. this case: $ git hash-object --stdin -w -t garbage --literally </dev/null 8315a83d2acc4c174aed59430f9a9c4ed926440f $ mv objects/83 objects/84 As noted in an earlier commits we'd simply die early in those cases, until preceding commits fixed the hard die on invalid object type: $ git fsck fatal: invalid object type Now we'll instead emit sensible error messages: $ git fsck error: 8315[...]: hash-path mismatch, found at: ./objects/84/15[...] error: 8315[...]: object is of unknown type 'garbage': ./objects/84/15[...] In both fsck.c and object-file.c we're using null_oid as a sentinel value for checking whether we got far enough to be certain that the issue was indeed this OID mismatch. We need to add the "object corrupt or missing" special-case to deal with cases where read_loose_object() will return an error before completing check_object_signature(), e.g. if we have an error in unpack_loose_rest() because we find garbage after the valid gzip content: $ git hash-object --stdin -w -t blob </dev/null e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 $ chmod 755 objects/e6/9de29bb2d1d6434b8b29ae775ad8c2e48c5391 $ echo garbage >>objects/e6/9de29bb2d1d6434b8b29ae775ad8c2e48c5391 $ git fsck error: garbage at end of loose object 'e69d[...]' error: unable to unpack contents of ./objects/e6/9d[...] error: e69d[...]: object corrupt or missing: ./objects/e6/9d[...] There is currently some weird messaging in the edge case when the two are combined, i.e. because we're not explicitly passing along an error state about this specific scenario from check_stream_oid() via read_loose_object() we'll end up printing the null OID if an object is of an unknown type *and* it can't be unpacked by zlib, e.g.: $ git hash-object --stdin -w -t garbage --literally </dev/null 8315a83d2acc4c174aed59430f9a9c4ed926440f $ chmod 755 objects/83/15a83d2acc4c174aed59430f9a9c4ed926440f $ echo garbage >>objects/83/15a83d2acc4c174aed59430f9a9c4ed926440f $ /usr/bin/git fsck fatal: invalid object type $ ~/g/git/git fsck error: garbage at end of loose object '8315a83d2acc4c174aed59430f9a9c4ed926440f' error: unable to unpack contents of ./objects/83/15a83d2acc4c174aed59430f9a9c4ed926440f error: 8315a83d2acc4c174aed59430f9a9c4ed926440f: object corrupt or missing: ./objects/83/15a83d2acc4c174aed59430f9a9c4ed926440f error: 0000000000000000000000000000000000000000: object is of unknown type 'garbage': ./objects/83/15a83d2acc4c174aed59430f9a9c4ed926440f [...] I think it's OK to leave that for future improvements, which would involve enum-ifying more error state as we've done with "enum unpack_loose_header_result" in preceding commits. In these increasingly more obscure cases the worst that can happen is that we'll get slightly nonsensical or inapplicable error messages. There's other such potential edge cases, all of which might produce some confusing messaging, but still be handled correctly as far as passing along errors goes. E.g. if check_object_signature() returns and oideq(real_oid, null_oid()) is true, which could happen if it returns -1 due to the read_istream() call having failed. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-01object-file.c: stop dying in parse_loose_header()Libravatar Ævar Arnfjörð Bjarmason1-2/+9
Make parse_loose_header() return error codes and data instead of invoking die() by itself. For now we'll move the relevant die() call to loose_object_info() and read_loose_object() to keep this change smaller. In a subsequent commit we'll make read_loose_object() return an error code instead of dying. We should also address the "allow_unknown" case (should be moved to builtin/cat-file.c), but for now I'll be leaving it. For making parse_loose_header() not die() change its prototype to accept a "struct object_info *" instead of the "unsigned long *sizep" it accepted before. Its callers can now check the populated populated "oi->typep". Because of this we don't need to pass in the "unsigned int flags" which we used for OBJECT_INFO_ALLOW_UNKNOWN_TYPE, we can instead do that check in loose_object_info(). This also refactors some confusing control flow around the "status" variable. In some cases we set it to the return value of "error()", i.e. -1, and later checked if "status < 0" was true. Since 93cff9a978e (sha1_loose_object_info: return error for corrupted objects, 2017-04-01) the return value of loose_object_info() (then named sha1_loose_object_info()) had been a "status" variable that be any negative value, as we were expecting to return the "enum object_type". The only negative type happens to be OBJ_BAD, but the code still assumed that more might be added. This was then used later in e.g. c84a1f3ed4d (sha1_file: refactor read_object, 2017-06-21). Now that parse_loose_header() will return 0 on success instead of the type (which it'll stick into the "struct object_info") we don't need to conflate these two cases in its callers. Since parse_loose_header() doesn't need to return an arbitrary "status" we only need to treat its "ret < 0" specially, but can idiomatically overwrite it with our own error() return. This along with having made unpack_loose_header() return an "enum unpack_loose_header_result" in an earlier commit means that we can move the previously nested if/else cases mostly into the "ULHR_OK" branch of the "switch" statement. We should be less silent if we reach that "status = -1" branch, which happens if we've got trailing garbage in loose objects, see f6371f92104 (sha1_file: add read_loose_object() function, 2017-01-13) for a better way to handle it. For now let's punt on it, a subsequent commit will address that edge case. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-01object-file.c: return ULHR_TOO_LONG on "header too long"Libravatar Ævar Arnfjörð Bjarmason1-1/+4
Split up the return code for "header too long" from the generic negative return value unpack_loose_header() returns, and report via error() if we exceed MAX_HEADER_LEN. As a test added earlier in this series in t1006-cat-file.sh shows we'll correctly emit zlib errors from zlib.c already in this case, so we have no need to carry those return codes further down the stack. Let's instead just return ULHR_TOO_LONG saying we ran into the MAX_HEADER_LEN limit, or other negative values for "unable to unpack <OID> header". Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-01object-file.c: use "enum" return type for unpack_loose_header()Libravatar Ævar Arnfjörð Bjarmason1-4/+15
In a preceding commit we changed and documented unpack_loose_header() from its previous behavior of returning any negative value or zero, to only -1 or 0. Let's add an "enum unpack_loose_header_result" type and use it for these return values, and have the compiler assert that we're exhaustively covering all of them. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-01object-file.c: simplify unpack_loose_short_header()Libravatar Ævar Arnfjörð Bjarmason1-1/+16
Combine the unpack_loose_short_header(), unpack_loose_header_to_strbuf() and unpack_loose_header() functions into one. The unpack_loose_header_to_strbuf() function was added in 46f034483eb (sha1_file: support reading from a loose object of unknown type, 2015-05-03). Its code was mostly copy/pasted between it and both of unpack_loose_header() and unpack_loose_short_header(). We now have a single unpack_loose_header() function which accepts an optional "struct strbuf *" instead. I think the remaining unpack_loose_header() function could be further simplified, we're carrying some complexity just to be able to emit a garbage type longer than MAX_HEADER_LEN, we could alternatively just say "we found a garbage type <first 32 bytes>..." instead. But let's leave the current behavior in place for now. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-01object-file.c: make parse_loose_header_extended() publicLibravatar Ævar Arnfjörð Bjarmason1-1/+3
Make the parse_loose_header_extended() function public and remove the parse_loose_header() wrapper. The only direct user of it outside of object-file.c itself was in streaming.c, that caller can simply pass the required "struct object-info *" instead. This change is being done in preparation for teaching read_loose_object() to accept a flag to pass to parse_loose_header(). It isn't strictly necessary for that change, we could simply use parse_loose_header_extended() there, but will leave the API in a better end state. It would be a better end-state to have already moved the declaration of these functions to object-store.h to avoid the forward declaration of "struct object_info" in cache.h, but let's leave that cleanup for some other time. 1. https://lore.kernel.org/git/patch-v6-09.22-5b9278e7bb4-20210907T104559Z-avarab@gmail.com/ Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-27*.h: move some *_INIT to designated initializersLibravatar Ævar Arnfjörð Bjarmason1-1/+3
Move various *_INIT macros to use designated initializers. This helps readability. I've only picked those leftover macros that were not touched by another in-flight series of mine which changed others, but also how initialization was done. In the case of SUBMODULE_ALTERNATE_SETUP_INIT I've left an explicit initialization of "error_mode", even though SUBMODULE_ALTERNATE_ERROR_IGNORE itself is defined as "0". Let's not peek under the hood and assume that enum fields we know the value of will stay at "0". The change to "TESTSUITE_INIT" in "t/helper/test-run-command.c" was part of an earlier on-list version[1] of c90be786da9 (test-tool run-command: fix flip-flop init pattern, 2021-09-11). 1. https://lore.kernel.org/git/patch-1.1-0aa4523ab6e-20210909T130849Z-avarab@gmail.com/ Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-27*.h _INIT macros: don't specify fields equal to 0Libravatar Ævar Arnfjörð Bjarmason1-1/+1
Change the initialization of "struct strbuf" changed in cbc0f81d96f (strbuf: use designated initializers in STRBUF_INIT, 2017-07-10) to omit specifying "alloc" and "len", as we do with other "alloc" and "len" (or "nr") in similar structs. Let's likewise omit the explicit initialization of all fields in the "struct ipc_client_connect_option" struct added in 59c7b88198a (simple-ipc: add win32 implementation, 2021-03-15). Do the same for a few other initializers, e.g. STRVEC_INIT and CACHE_DEF_INIT. Finally, start incrementally changing the same pattern in "t/helper/test-run-command.c". This change was part of an earlier on-list version[1] of c90be786da9 (test-tool run-command: fix flip-flop init pattern, 2021-09-11). 1. https://lore.kernel.org/git/patch-1.1-0aa4523ab6e-20210909T130849Z-avarab@gmail.com/ Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-27repack, prune: drop GIT_REF_PARANOIA settingsLibravatar Jeff King1-8/+0
Now that GIT_REF_PARANOIA is the default, we don't need to selectively enable it for destructive operations. In fact, it's harmful to do so, because it overrides any GIT_REF_PARANOIA=0 setting that the user may have provided (because they're trying to work around some corruption). With these uses gone, we can further clean up the ref_paranoia global, and make it a static variable inside the refs code. Signed-off-by: Jeff King <peff@peff.net> Reviewed-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-23Merge branch 'rs/drop-core-compression-vars'Libravatar Junio C Hamano1-1/+0
Code clean-up. * rs/drop-core-compression-vars: compression: drop write-only core_compression_* variables
2021-09-22environment.c: remove test-specific "ignore_untracked..." variableLibravatar Ævar Arnfjörð Bjarmason1-7/+0
Instead of the global ignore_untracked_cache_config variable added in dae6c322fa1 (test-dump-untracked-cache: don't modify the untracked cache, 2016-01-27) we can make use of the new facility to set config via environment variables added in d8d77153eaf (config: allow specifying config entries via envvar pairs, 2021-01-12). It's arguably a bit hacky to use setenv() and getenv() to pass messages between the same program, but since the test helpers are not the main intended audience of repo-settings.c I think it's better than hardcoding the test-only special-case in prepare_repo_settings(). This uses the xsetenv() wrapper added in the preceding commit, if we don't set these in the environment we'll fail in t7063-status-untracked-cache.sh, but let's fail earlier anyway if that were to happen. This breaks any parent process that's potentially using the GIT_CONFIG_* and GIT_CONFIG_PARAMETERS mechanism to pass one-shot config setting down to a git subprocess, but in this case we don't care about the general case of such potential parents. This process neither spawns other "git" processes, nor is it interested in other configuration. We might want to pick up other test modes here, but those will be passed via GIT_TEST_* environment variables. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-20Merge branch 'jv/pkt-line-batch'Libravatar Junio C Hamano1-0/+2
Reduce number of write(2) system calls while sending the ref advertisement. * jv/pkt-line-batch: upload-pack: use stdio in send_ref callbacks pkt-line: add stdio packet write functions
2021-09-20Merge branch 'lh/systemd-timers'Libravatar Junio C Hamano1-0/+7
"git maintenance" scheduler learned to use systemd timers as a possible backend. * lh/systemd-timers: maintenance: add support for systemd timers on Linux maintenance: `git maintenance run` learned `--scheduler=<scheduler>` cache.h: Introduce a generic "xdg_config_home_for(…)" function
2021-09-12compression: drop write-only core_compression_* variablesLibravatar René Scharfe1-1/+0
Since 8de7eeb54b (compression: unify pack.compression configuration parsing, 2016-11-15) the variables core_compression_level and core_compression_seen are only set, but never read. Remove them. Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-07cache.h: Introduce a generic "xdg_config_home_for(…)" functionLibravatar Lénaïc Huard1-0/+7
Current implementation of `xdg_config_home(filename)` returns `$XDG_CONFIG_HOME/git/$filename`, with the `git` subdirectory inserted between the `XDG_CONFIG_HOME` environment variable and the parameter. This patch introduces a `xdg_config_home_for(subdir, filename)` function which is more generic. It only concatenates "$XDG_CONFIG_HOME", or "$HOME/.config" if the former isn’t defined, with the parameters, without adding `git` in between. `xdg_config_home(filename)` is now implemented by calling `xdg_config_home_for("git", filename)` but this new generic function can be used to compute the configuration directory of other programs. Signed-off-by: Lénaïc Huard <lenaic@lhuard.fr> Acked-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-01pkt-line: add stdio packet write functionsLibravatar Jacob Vosmaer1-0/+2
This adds three new functions to pkt-line.c: packet_fwrite, packet_fwrite_fmt and packet_fflush. Besides writing a pktline flush packet, packet_fflush also flushes the stdio buffer of the stream. Helped-by: Patrick Steinhardt <ps@pks.im> Helped-by: Jeff King <peff@peff.net> Signed-off-by: Jacob Vosmaer <jacob@gitlab.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-08-25refs file backend: move raceproof_create_file() hereLibravatar Ævar Arnfjörð Bjarmason1-43/+0
Move the raceproof_create_file() API added to cache.h and object-file.c in 177978f56ad (raceproof_create_file(): new function, 2017-01-06) to its only user, refs/files-backend.c. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-08-24Merge branch 'js/expand-runtime-prefix'Libravatar Junio C Hamano1-1/+3
Pathname expansion (like "~username/") learned a way to specify a location relative to Git installation (e.g. its $sharedir which is $(prefix)/share), with "%(prefix)". * js/expand-runtime-prefix: expand_user_path: allow in-flight topics to keep using the old name interpolate_path(): allow specifying paths relative to the runtime prefix Use a better name for the function interpolating paths expand_user_path(): clarify the role of the `real_home` parameter expand_user_path(): remove stale part of the comment tests: exercise the RUNTIME_PREFIX feature
2021-08-02Merge branch 'jt/bulk-prefetch'Libravatar Junio C Hamano1-0/+9
"git read-tree" had a codepath where blobs are fetched one-by-one from the promisor remote, which has been corrected to fetch in bulk. * jt/bulk-prefetch: cache-tree: prefetch in partial clone read-tree unpack-trees: refactor prefetching code
2021-07-26expand_user_path: allow in-flight topics to keep using the old nameLibravatar Junio C Hamano1-0/+2
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-07-26Use a better name for the function interpolating pathsLibravatar Johannes Schindelin1-1/+1
It is not immediately clear what `expand_user_path()` means, so let's rename it to `interpolate_path()`. This also opens the path for interpolating more than just a home directory. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-07-23unpack-trees: refactor prefetching codeLibravatar Jonathan Tan1-0/+9
Refactor the prefetching code in unpack-trees.c into its own function, because it will be used elsewhere in a subsequent commit. Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-07-13*.h: add a few missing __attribute__((format))Libravatar Ævar Arnfjörð Bjarmason1-0/+1
Add missing format attributes to API functions that take printf arguments. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-05-16Merge branch 'mt/parallel-checkout-part-3'Libravatar Junio C Hamano1-5/+9
The final part of "parallel checkout". * mt/parallel-checkout-part-3: ci: run test round with parallel-checkout enabled parallel-checkout: add tests related to .gitattributes t0028: extract encoding helpers to lib-encoding.sh parallel-checkout: add tests related to path collisions parallel-checkout: add tests for basic operations checkout-index: add parallel checkout support builtin/checkout.c: complete parallel checkout support make_transient_cache_entry(): optionally alloc from mem_pool
2021-05-11Merge branch 'jk/symlinked-dotgitx-cleanup'Libravatar Junio C Hamano1-0/+1
Various test and documentation updates about .gitsomething paths that are symlinks. * jk/symlinked-dotgitx-cleanup: docs: document symlink restrictions for dot-files fsck: warn about symlinked dotfiles we'll open with O_NOFOLLOW t0060: test ntfs/hfs-obscured dotfiles t7450: test .gitmodules symlink matching against obscured names t7450: test verify_path() handling of gitmodules t7415: rename to expand scope fsck_tree(): wrap some long lines fsck_tree(): fix shadowed variable t7415: remove out-dated comment about translation
2021-05-07Merge branch 'mt/add-rm-in-sparse-checkout'Libravatar Junio C Hamano1-7/+8
"git add" and "git rm" learned not to touch those paths that are outside of sparse checkout. * mt/add-rm-in-sparse-checkout: rm: honor sparse checkout patterns add: warn when asked to update SKIP_WORKTREE entries refresh_index(): add flag to ignore SKIP_WORKTREE entries pathspec: allow to ignore SKIP_WORKTREE entries on index matching add: make --chmod and --renormalize honor sparse checkouts t3705: add tests for `git add` in sparse checkouts add: include magic part of pathspec on --refresh error
2021-05-05make_transient_cache_entry(): optionally alloc from mem_poolLibravatar Matheus Tavares1-5/+9
Allow make_transient_cache_entry() to optionally receive a mem_pool struct in which it should allocate the entry. This will be used in the following patch, to store some transient entries which should persist until parallel checkout finishes. Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-05-04t0060: test ntfs/hfs-obscured dotfilesLibravatar Jeff King1-0/+1
We have tests that cover various filesystem-specific spellings of ".gitmodules", because we need to reliably identify that path for some security checks. These are from dc2d9ba318 (is_{hfs,ntfs}_dotgitmodules: add tests, 2018-05-12), with the actual code coming from e7cb0b4455 (is_ntfs_dotgit: match other .git files, 2018-05-11) and 0fc333ba20 (is_hfs_dotgit: match other .git files, 2018-05-02). Those latter two commits also added similar matching functions for .gitattributes and .gitignore. These ended up not being used in the final series, and are currently dead code. But in preparation for them being used in some fsck checks, let's make sure they actually work by throwing a few basic tests at them. Likewise, let's cover .mailmap (which does need matching code added). I didn't bother with the whole battery of tests that we cover for .gitmodules. These functions are all based on the same generic matcher, so it's sufficient to test most of the corner cases just once. Note that the ntfs magic prefix names in the tests come from the algorithm described in e7cb0b4455 (and are different for each file). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-04-30Merge branch 'ds/sparse-index-protections'Libravatar Junio C Hamano1-4/+21
Builds on top of the sparse-index infrastructure to mark operations that are not ready to mark with the sparse index, causing them to fall back on fully-populated index that they always have worked with. * ds/sparse-index-protections: (47 commits) name-hash: use expand_to_path() sparse-index: expand_to_path() name-hash: don't add directories to name_hash revision: ensure full index resolve-undo: ensure full index read-cache: ensure full index pathspec: ensure full index merge-recursive: ensure full index entry: ensure full index dir: ensure full index update-index: ensure full index stash: ensure full index rm: ensure full index merge-index: ensure full index ls-files: ensure full index grep: ensure full index fsck: ensure full index difftool: ensure full index commit: ensure full index checkout: ensure full index ...
2021-04-14cache: move ensure_full_index() to cache.hLibravatar Derrick Stolee1-0/+1
Soon we will insert ensure_full_index() calls across the codebase. Instead of also adding include statements for sparse-index.h, let's just use the fact that anything that cares about the index already has cache.h in its includes. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Reviewed-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-04-14*: remove 'const' qualifier for struct index_stateLibravatar Derrick Stolee1-3/+3
Several methods specify that they take a 'struct index_state' pointer with the 'const' qualifier because they intend to only query the data, not change it. However, we will be introducing a step very low in the method stack that might modify a sparse-index to become a full index in the case that our queries venture inside a sparse-directory entry. This change only removes the 'const' qualifiers that are necessary for the following change which will actually modify the implementation of index_name_stage_pos(). Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Reviewed-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-04-08refresh_index(): add flag to ignore SKIP_WORKTREE entriesLibravatar Matheus Tavares1-7/+8
refresh_index() doesn't update SKIP_WORKTREE entries, but it still matches them against the given pathspecs, marks the matches on the seen[] array, check if unmerged, etc. In the following patch, one caller will need refresh_index() to ignore SKIP_WORKTREE entries entirely, so add a flag that implements this behavior. While we are here, also realign the REFRESH_* flags and convert the hex values to the more natural bit shift format, which makes it easier to spot holes. Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-04-02Merge branch 'mt/parallel-checkout-part-1'Libravatar Junio C Hamano1-24/+0
Preparatory API changes for parallel checkout. * mt/parallel-checkout-part-1: entry: add checkout_entry_ca() taking preloaded conv_attrs entry: move conv_attrs lookup up to checkout_entry() entry: extract update_ce_after_write() from write_entry() entry: make fstat_output() and read_blob_entry() public entry: extract a header file for entry.c functions convert: add classification for conv_attrs struct convert: add get_stream_filter_ca() variant convert: add [async_]convert_to_working_tree_ca() variants convert: make convert_attrs() and convert structs public
2021-03-30Merge branch 'ab/read-tree'Libravatar Junio C Hamano1-1/+1
Code simplification by removing support for a caller that is long gone. * ab/read-tree: tree.h API: simplify read_tree_recursive() signature tree.h API: expose read_tree_1() as read_tree_at() archive: stop passing "stage" through read_tree_recursive() ls-files: refactor away read_tree() ls-files: don't needlessly pass around stage variable tree.c API: move read_tree() into builtin/ls-files.c ls-files tests: add meaningful --with-tree tests show tests: add test for "git show <tree>"
2021-03-30Merge branch 'mt/checkout-remove-nofollow'Libravatar Junio C Hamano1-1/+1
When "git checkout" removes a path that does not exist in the commit it is checking out, it wasn't careful enough not to follow symbolic links, which has been corrected. * mt/checkout-remove-nofollow: checkout: don't follow symlinks when removing entries symlinks: update comment on threaded_check_leading_path()