These changes are made in preparation of, the colorization support for the
"git log" subcommands that, rely on regex functionality (i.e. "--author",
"--committer" and "--grep"). These changes are necessary primarily because
match_one_pattern() expects header lines to be prefixed, however, in
pretty, the prefixes are stripped from the lines because the name-email
pairs need to go through additional parsing, before they can be printed and
because next_match() doesn't handle the case of
"ctx == GREP_CONTEXT_HEAD" at all. So, teach next_match() how to handle the
new case and move match_one_pattern()'s core logic to
headerless_match_one_pattern() while preserving match_one_pattern()'s uses
that depend on the additional processing.
Signed-off-by: Hamza Mahfooz <someguy@effective-light.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* jk/grep-haystack-is-read-only:
grep: store grep_source buffer as const
grep: mark "haystack" buffers as const
grep: stop modifying buffer in grep_source_1()
grep: stop modifying buffer in show_line()
grep: stop modifying buffer in strip_timestamp
Our grep_buffer() function takes a non-const buffer, which is confusing:
we don't take ownership of nor write to the buffer.
This mostly comes from the fact that the underlying grep_source struct
in which we store the buffer uses non-const pointer. The memory pointed
to by the struct is sometimes owned by us (for FILE or OID sources), and
sometimes not (for BUF sources).
Let's store it as const, which lets us err on the side of caution (i.e.,
the compiler will warn us if any of our code writes to or tries to free
it).
As a result, we must annotate the one place where we do free it by
casting away the constness. But that's a small price to pay for the
extra safety and clarity elsewhere (and indeed, it already had a comment
explaining why GREP_SOURCE_BUF _didn't_ free it).
And then we can mark grep_buffer() as taking a const buffer.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When we're grepping in a buffer, we don't need to modify it. So we can
take "const char *" buffers, rather than "char *". This can avoid some
awkward casts in our callers, and make our expectations more clear (we
will not take ownership of the memory, nor will we ever write to it).
These spots don't all necessarily have to be converted at the same time,
but some of them are dependent on others, because we pass
pointers-to-pointers in a few cases. And none of this should change any
behavior, since we're just adding "const" qualifiers (and likewise, the
compiler will let us know if we missed any spots). So it's relatively
low-risk to just do this all at once.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We find the end of each matching line of a buffer, and then temporarily
write a NUL to turn it into a regular C string. But we don't need to do
so, because the only thing we do in the interim is pass the line and its
length (via an "eol" pointer) to match_line(). And that function should
only look at the bytes we passed it, whether it has a terminating NUL or
not.
We can drop this temporary write in order to simplify the code and make
it easier to use const buffers in more of grep.c.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When showing lines via grep (or looking for funcnames), we call
show_line() on a multi-line buffer. It finds the end of line and marks
it with a NUL. However, we don't need to do so, as the resulting line is
only used along with its "eol" marker:
- we pass both to next_match(), which takes care to look at only the
bytes we specified
- we pass the line to output_color() without its matching eol marker.
However, we do use the "match" struct we got from next_match() to
tell it how many bytes to look at (which can never exceed the string
we passed it).
So we can stop setting and restoring this NUL marker. That makes the
code simpler, and will allow us to take a const buffer in a future
patch.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When grepping for headers in commit objects, we receive individual
lines (e.g., "author Name <email> 1234 -0000"), and then strip off the
timestamp to do our match. We do so by writing a NUL byte over the
whitespace separator, and then remembering to restore it later.
We had to do it this way when this was added back in a4d7d2c6db (log
--author/--committer: really match only with name part, 2008-09-04),
because we fed the result directly to regexec(), which expects a
NUL-terminated string. But since b7d36ffca0 (regex: use regexec_buf(),
2016-09-21), we have a function which can match part of a buffer.
So instead of modifying the string, we can instead just move the "eol"
pointer, and the rest of the code will do the right thing. This will let
further patches mark more buffers as "const".
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The "mode" word is useless in a call to open(2) that does not
create a new file. Such a call in the files backend of the ref
subsystem has been cleaned up.
* rs/no-mode-to-open-when-appending:
refs/files-backend: remove unused open mode parameter
The run-command API has been updated so that the callers can easily
ask the file descriptors open for packfiles to be closed immediately
before spawning commands that may trigger auto-gc.
* js/run-command-close-packs:
Close object store closer to spawning child processes
run_auto_maintenance(): implicitly close the object store
run-command: offer to close the object store before running
run-command: prettify the `RUN_COMMAND_*` flags
pull: release packs before fetching
commit-graph: when closing the graph, also release the slab
Various mergy operations have been prepared to work efficiently
with the sparse index.
* ds/mergies-with-sparse-index:
sparse-index: integrate with cherry-pick and rebase
sequencer: ensure full index if not ORT strategy
t1092: add cherry-pick, rebase tests
merge-ort: expand only for out-of-cone conflicts
merge: make sparse-aware with ORT
diff: ignore sparse paths in diffstat
In cone mode, the sparse-index code path learned to remove ignored
files (like build artifacts) outside the sparse cone, allowing the
entire directory outside the sparse cone to be removed, which is
especially useful when the sparse patterns change.
* ds/sparse-index-ignored-files:
sparse-checkout: clear tracked sparse dirs
sparse-index: add SPARSE_INDEX_MEMORY_ONLY flag
attr: be careful about sparse directories
sparse-checkout: create helper methods
sparse-index: use WRITE_TREE_MISSING_OK
sparse-index: silently return when cache tree fails
unpack-trees: fix nested sparse-dir search
sparse-index: silently return when not using cone-mode patterns
t7519: rewrite sparse index test
Build clean-up for "make tags" and friends.
* ab/make-tags-cleanup:
Makefile: normalize clobbering & xargs for tags targets
Makefile: remove "cscope.out", not "cscope*" in cscope.out target
Makefile: don't use "FORCE" for tags targets
Makefile: add QUIET_GEN to "cscope" target
Makefile: move ".PHONY: cscope" near its target
Code clean-up around "git serve".
* ab/serve-cleanup:
upload-pack: document and rename --advertise-refs
serve.[ch]: remove "serve_options", split up --advertise-refs code
{upload,receive}-pack tests: add --advertise-refs tests
serve.c: move version line to advertise_capabilities()
serve: move transfer.advertiseSID check into session_id_advertise()
serve.[ch]: don't pass "struct strvec *keys" to commands
serve: use designated initializers
transport: use designated initializers
transport: rename "fetch" in transport_vtable to "fetch_refs"
serve: mark has_capability() as static
More parts of "git submodule add" has been rewritten in C.
* ar/submodule-add-more:
submodule--helper: rename compute_submodule_clone_url()
submodule--helper: remove resolve-relative-url subcommand
submodule--helper: remove add-config subcommand
submodule--helper: remove add-clone subcommand
submodule--helper: convert the bulk of cmd_add() to C
dir: libify and export helper functions from clone.c
submodule--helper: remove repeated code in sync_submodule()
submodule--helper: refactor resolve_relative_url() helper
submodule--helper: add options for compute_submodule_clone_url()
The order in which various files that make up a single (conceptual)
packfile has been reevaluated and straightened up. This matters in
correctness, as an incomplete set of files must not be shown to a
running Git.
* tb/pack-finalize-ordering:
pack-objects: rename .idx files into place after .bitmap files
pack-write: split up finish_tmp_packfile() function
builtin/index-pack.c: move `.idx` files into place last
index-pack: refactor renaming in final()
builtin/repack.c: move `.idx` files into place last
pack-write.c: rename `.idx` files after `*.rev`
pack-write: refactor renaming in finish_tmp_packfile()
bulk-checkin.c: store checksum directly
pack.h: line-wrap the definition of finish_tmp_packfile()
Update the build procedure to use the "-pedantic" build when
DEVELOPER makefile macro is in effect.
* cb/pedantic-build-for-developers:
developer: enable pedantic by default
win32: allow building with pedantic mode enabled
gettext: remove optional non-standard parens in N_() definition
The code to show progress indicator in a few code paths did not
cover between 0-100%, which has been corrected.
* ab/progress-users-adjust-counters:
entry: show finer-grained counter in "Filtering content" progress line
commit-graph: fix bogus counter in "Scanning merged commits" progress line
"git diff --submodule=diff" showed failure from run_command() when
trying to run diff inside a submodule, when the user manually
removes the submodule directory.
* dt/submodule-diff-fixes:
diff --submodule=diff: don't print failure message twice
diff --submodule=diff: do not fail on ever-initialied deleted submodules
t4060: remove unused variable
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
"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
The tracing of process ancestry information has been enhanced.
* ab/tr2-leaks-and-fixes:
tr2: log N parent process names on Linux
tr2: do compiler enum check in trace2_collect_process_info()
tr2: leave the parent list empty upon failure & don't leak memory
tr2: stop leaking "thread_name" memory
tr2: clarify TRACE2_PROCESS_INFO_EXIT comment under Linux
tr2: remove NEEDSWORK comment for "non-procfs" implementations
The code to make "git grep" recurse into submodules has been
updated to migrate away from the "add submodule's object store as
an alternate object store" mechanism (which is suboptimal).
* jt/grep-wo-submodule-odb-as-alternate:
t7814: show lack of alternate ODB-adding
submodule-config: pass repo upon blob config read
grep: add repository to OID grep sources
grep: allocate subrepos on heap
grep: read submodule entry with explicit repo
grep: typesafe versions of grep_source_init
grep: use submodule-ODB-as-alternate lazy-addition
submodule: lazily add submodule ODBs as alternates
The reachability bitmap file used to be generated only for a single
pack, but now we've learned to generate bitmaps for history that
span across multiple packfiles.
* tb/multi-pack-bitmaps: (29 commits)
pack-bitmap: drop bitmap_index argument from try_partial_reuse()
pack-bitmap: drop repository argument from prepare_midx_bitmap_git()
p5326: perf tests for MIDX bitmaps
p5310: extract full and partial bitmap tests
midx: respect 'GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP'
t7700: update to work with MIDX bitmap test knob
t5319: don't write MIDX bitmaps in t5319
t5310: disable GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP
t0410: disable GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP
t5326: test multi-pack bitmap behavior
t/helper/test-read-midx.c: add --checksum mode
t5310: move some tests to lib-bitmap.sh
pack-bitmap: write multi-pack bitmaps
pack-bitmap: read multi-pack bitmaps
pack-bitmap.c: avoid redundant calls to try_partial_reuse
pack-bitmap.c: introduce 'bitmap_is_preferred_refname()'
pack-bitmap.c: introduce 'nth_bitmap_object_oid()'
pack-bitmap.c: introduce 'bitmap_num_objects()'
midx: avoid opening multiple MIDXs when writing
midx: close linked MIDXs, avoid leaking memory
...
Optimize code that handles large number of refs in the "git fetch"
code path.
* ps/fetch-optim:
fetch: avoid second connectivity check if we already have all objects
fetch: merge fetching and consuming refs
fetch: refactor fetch refs to be more extendable
fetch-pack: optimize loading of refs via commit graph
connected: refactor iterator to return next object ID directly
fetch: avoid unpacking headers in object existence check
fetch: speed up lookup of want refs via commit-graph
The code that optionally creates the *.rev reverse index file has
been optimized to avoid needless computation when it is not writing
the file out.
* ab/reverse-midx-optim:
pack-write: skip *.rev work when not writing *.rev
"make INSTALL_STRIP=-s install" allows the installation step to use
"install -s" to strip the binaries as they get installed.
* bs/install-strip:
make: add INSTALL_STRIP option variable
Teach "test_pause" and "debug" helpers to allow using the HOME and
TERM environment variables the user usually uses.
* pb/test-use-user-env:
test-lib-functions: keep user's debugger config files and TERM in 'debug'
test-lib-functions: optionally keep HOME, TERM and SHELL in 'test_pause'
test-lib-functions: use 'TEST_SHELL_PATH' in 'test_pause'
The "git apply -3" code path learned not to bother the lower level
merge machinery when the three-way merge can be trivially resolved
without the content level merge.
* jc/trivial-threeway-binary-merge:
apply: resolve trivial merge without hitting ll-merge with "--3way"
The logic for auto-correction of misspelt subcommands learned to go
interactive when the help.autocorrect configuration variable is set
to 'prompt'.
* ab/help-autocorrect-prompt:
help.c: help.autocorrect=prompt waits for user action
Tie-break branches that point at the same object in the list of
branches on GitWeb to show the one pointed at by HEAD early.
* gh/gitweb-branch-sort:
gitweb: use HEAD as secondary sort key in git_get_heads_list()
Doc update plus improved error reporting.
* jk/log-warn-on-bogus-encoding:
docs: use "character encoding" to refer to commit-object encoding
logmsg_reencode(): warn when iconv() fails
Code clean up to migrate callers from older advice_config[] based
API to newer advice_if_enabled() and advice_enabled() API.
* ab/retire-advice-config:
advice: move advice.graftFileDeprecated squashing to commit.[ch]
advice: remove use of global advice_add_embedded_repo
advice: remove read uses of most global `advice_` variables
advice: add enum variants for missing advice variables
