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grep: add repository to OID grep sources

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Record the repository whenever an OID grep source is created, and teach
the worker threads to explicitly provide the repository when accessing
objects.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Reviewed-by: Matheus Tavares <matheus.bernardino@usp.br>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jonathan Tan 2021-08-16 14:09:56 -07:00 committed by Junio C Hamano
parent dd45471a37
commit 0693806bf8
3 changed files with 27 additions and 12 deletions
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15
builtin/grep.c
View File

@ -349,7 +349,7 @@ static int grep_oid(struct grep_opt *opt, const struct object_id *oid,
struct grep_source gs;
grep_source_name(opt, filename, tree_name_len, &pathbuf);
grep_source_init_oid(&gs, pathbuf.buf, path, oid);
grep_source_init_oid(&gs, pathbuf.buf, path, oid, opt->repo);
strbuf_release(&pathbuf);
if (num_threads > 1) {
@ -462,14 +462,11 @@ static int grep_submodule(struct grep_opt *opt,
repo_read_gitmodules(subrepo, 0);
/*
* NEEDSWORK: This adds the submodule's object directory to the list of
* alternates for the single in-memory object store. This has some bad
* consequences for memory (processed objects will never be freed) and
* performance (this increases the number of pack files git has to pay
* attention to, to the sum of the number of pack files in all the
* repositories processed so far). This can be removed once the object
* store is no longer global and instead is a member of the repository
* object.
* All code paths tested by test code no longer need submodule ODBs to
* be added as alternates, but add it to the list just in case.
* Submodule ODBs added through add_submodule_odb_by_path() will be
* lazily registered as alternates when needed (and except in an
* unexpected code interaction, it won't be needed).
*/
add_submodule_odb_by_path(subrepo->objects->odb->path);
obj_read_unlock();

7
grep.c
View File

@ -1863,7 +1863,8 @@ void grep_source_init_file(struct grep_source *gs, const char *name,
}
void grep_source_init_oid(struct grep_source *gs, const char *name,
const char *path, const struct object_id *oid)
const char *path, const struct object_id *oid,
struct repository *repo)
{
gs->type = GREP_SOURCE_OID;
gs->name = xstrdup_or_null(name);
@ -1872,6 +1873,7 @@ void grep_source_init_oid(struct grep_source *gs, const char *name,
gs->size = 0;
gs->driver = NULL;
gs->identifier = oiddup(oid);
gs->repo = repo;
}
void grep_source_clear(struct grep_source *gs)
@ -1900,7 +1902,8 @@ static int grep_source_load_oid(struct grep_source *gs)
{
enum object_type type;
gs->buf = read_object_file(gs->identifier, &type, &gs->size);
gs->buf = repo_read_object_file(gs->repo, gs->identifier, &type,
&gs->size);
if (!gs->buf)
return error(_("'%s': unable to read %s"),
gs->name,

17
grep.h
View File

@ -120,7 +120,20 @@ struct grep_opt {
struct grep_pat *header_list;
struct grep_pat **header_tail;
struct grep_expr *pattern_expression;
/*
* NEEDSWORK: See if we can remove this field, because the repository
* should probably be per-source. That is, grep.c functions using this
* field should probably start using "repo" in "struct grep_source"
* instead.
*
* This is potentially the cause of at least one bug - "git grep"
* ignoring the textconv attributes from submodules. See [1] for more
* information.
* [1] https://lore.kernel.org/git/CAHd-oW5iEQarYVxEXoTG-ua2zdoybTrSjCBKtO0YT292fm0NQQ@mail.gmail.com/
*/
struct repository *repo;
const char *prefix;
int prefix_length;
regex_t regexp;
@ -187,6 +200,7 @@ struct grep_source {
GREP_SOURCE_BUF,
} type;
void *identifier;
struct repository *repo; /* if GREP_SOURCE_OID */
char *buf;
unsigned long size;
@ -198,7 +212,8 @@ struct grep_source {
void grep_source_init_file(struct grep_source *gs, const char *name,
const char *path);
void grep_source_init_oid(struct grep_source *gs, const char *name,
const char *path, const struct object_id *oid);
const char *path, const struct object_id *oid,
struct repository *repo);
void grep_source_clear_data(struct grep_source *gs);
void grep_source_clear(struct grep_source *gs);
void grep_source_load_driver(struct grep_source *gs,