diff options
| -rw-r--r-- | Makefile | 1 | ||||
| -rw-r--r-- | object-file.c | 7 | ||||
| -rw-r--r-- | promisor-remote.c | 103 | ||||
| -rw-r--r-- | promisor-remote.h | 28 | ||||
| -rw-r--r-- | repository.c | 10 | ||||
| -rw-r--r-- | repository.h | 5 | ||||
| -rw-r--r-- | run-command.c | 12 | ||||
| -rw-r--r-- | run-command.h | 10 | ||||
| -rw-r--r-- | setup.c | 17 | ||||
| -rw-r--r-- | submodule.c | 17 | ||||
| -rw-r--r-- | t/helper/test-partial-clone.c | 43 | ||||
| -rw-r--r-- | t/helper/test-tool.c | 1 | ||||
| -rw-r--r-- | t/helper/test-tool.h | 1 | ||||
| -rwxr-xr-x | t/t0410-partial-clone.sh | 23 |
14 files changed, 196 insertions, 82 deletions
@@ -729,6 +729,7 @@ TEST_BUILTINS_OBJS += test-oidmap.o TEST_BUILTINS_OBJS += test-online-cpus.o TEST_BUILTINS_OBJS += test-parse-options.o TEST_BUILTINS_OBJS += test-parse-pathspec-file.o +TEST_BUILTINS_OBJS += test-partial-clone.o TEST_BUILTINS_OBJS += test-path-utils.o TEST_BUILTINS_OBJS += test-pcre2-config.o TEST_BUILTINS_OBJS += test-pkt-line.o diff --git a/object-file.c b/object-file.c index b9c3219793..ecca5a8da0 100644 --- a/object-file.c +++ b/object-file.c @@ -1584,15 +1584,12 @@ static int do_oid_object_info_extended(struct repository *r, } /* Check if it is a missing object */ - if (fetch_if_missing && has_promisor_remote() && - !already_retried && r == the_repository && + if (fetch_if_missing && repo_has_promisor_remote(r) && + !already_retried && !(flags & OBJECT_INFO_SKIP_FETCH_OBJECT)) { /* * TODO Investigate checking promisor_remote_get_direct() * TODO return value and stopping on error here. - * TODO Pass a repository struct through - * promisor_remote_get_direct(), such that arbitrary - * repositories work. */ promisor_remote_get_direct(r, real, 1); already_retried = 1; diff --git a/promisor-remote.c b/promisor-remote.c index d465377d7d..db2ebdc66e 100644 --- a/promisor-remote.c +++ b/promisor-remote.c @@ -5,12 +5,10 @@ #include "transport.h" #include "strvec.h" -static char *repository_format_partial_clone; - -void set_repository_format_partial_clone(char *partial_clone) -{ - repository_format_partial_clone = xstrdup_or_null(partial_clone); -} +struct promisor_remote_config { + struct promisor_remote *promisors; + struct promisor_remote **promisors_tail; +}; static int fetch_objects(struct repository *repo, const char *remote_name, @@ -23,6 +21,8 @@ static int fetch_objects(struct repository *repo, child.git_cmd = 1; child.in = -1; + if (repo != the_repository) + prepare_other_repo_env(&child.env_array, repo->gitdir); strvec_pushl(&child.args, "-c", "fetch.negotiationAlgorithm=noop", "fetch", remote_name, "--no-tags", "--no-write-fetch-head", "--recurse-submodules=no", @@ -45,10 +45,8 @@ static int fetch_objects(struct repository *repo, return finish_command(&child) ? -1 : 0; } -static struct promisor_remote *promisors; -static struct promisor_remote **promisors_tail = &promisors; - -static struct promisor_remote *promisor_remote_new(const char *remote_name) +static struct promisor_remote *promisor_remote_new(struct promisor_remote_config *config, + const char *remote_name) { struct promisor_remote *r; @@ -60,18 +58,19 @@ static struct promisor_remote *promisor_remote_new(const char *remote_name) FLEX_ALLOC_STR(r, name, remote_name); - *promisors_tail = r; - promisors_tail = &r->next; + *config->promisors_tail = r; + config->promisors_tail = &r->next; return r; } -static struct promisor_remote *promisor_remote_lookup(const char *remote_name, +static struct promisor_remote *promisor_remote_lookup(struct promisor_remote_config *config, + const char *remote_name, struct promisor_remote **previous) { struct promisor_remote *r, *p; - for (p = NULL, r = promisors; r; p = r, r = r->next) + for (p = NULL, r = config->promisors; r; p = r, r = r->next) if (!strcmp(r->name, remote_name)) { if (previous) *previous = p; @@ -81,7 +80,8 @@ static struct promisor_remote *promisor_remote_lookup(const char *remote_name, return NULL; } -static void promisor_remote_move_to_tail(struct promisor_remote *r, +static void promisor_remote_move_to_tail(struct promisor_remote_config *config, + struct promisor_remote *r, struct promisor_remote *previous) { if (r->next == NULL) @@ -90,14 +90,15 @@ static void promisor_remote_move_to_tail(struct promisor_remote *r, if (previous) previous->next = r->next; else - promisors = r->next ? r->next : r; + config->promisors = r->next ? r->next : r; r->next = NULL; - *promisors_tail = r; - promisors_tail = &r->next; + *config->promisors_tail = r; + config->promisors_tail = &r->next; } static int promisor_remote_config(const char *var, const char *value, void *data) { + struct promisor_remote_config *config = data; const char *name; size_t namelen; const char *subkey; @@ -113,8 +114,8 @@ static int promisor_remote_config(const char *var, const char *value, void *data remote_name = xmemdupz(name, namelen); - if (!promisor_remote_lookup(remote_name, NULL)) - promisor_remote_new(remote_name); + if (!promisor_remote_lookup(config, remote_name, NULL)) + promisor_remote_new(config, remote_name); free(remote_name); return 0; @@ -123,9 +124,9 @@ static int promisor_remote_config(const char *var, const char *value, void *data struct promisor_remote *r; char *remote_name = xmemdupz(name, namelen); - r = promisor_remote_lookup(remote_name, NULL); + r = promisor_remote_lookup(config, remote_name, NULL); if (!r) - r = promisor_remote_new(remote_name); + r = promisor_remote_new(config, remote_name); free(remote_name); @@ -138,59 +139,63 @@ static int promisor_remote_config(const char *var, const char *value, void *data return 0; } -static int initialized; - -static void promisor_remote_init(void) +static void promisor_remote_init(struct repository *r) { - if (initialized) + struct promisor_remote_config *config; + + if (r->promisor_remote_config) return; - initialized = 1; + config = r->promisor_remote_config = + xcalloc(sizeof(*r->promisor_remote_config), 1); + config->promisors_tail = &config->promisors; - git_config(promisor_remote_config, NULL); + repo_config(r, promisor_remote_config, config); - if (repository_format_partial_clone) { + if (r->repository_format_partial_clone) { struct promisor_remote *o, *previous; - o = promisor_remote_lookup(repository_format_partial_clone, + o = promisor_remote_lookup(config, + r->repository_format_partial_clone, &previous); if (o) - promisor_remote_move_to_tail(o, previous); + promisor_remote_move_to_tail(config, o, previous); else - promisor_remote_new(repository_format_partial_clone); + promisor_remote_new(config, r->repository_format_partial_clone); } } -static void promisor_remote_clear(void) +void promisor_remote_clear(struct promisor_remote_config *config) { - while (promisors) { - struct promisor_remote *r = promisors; - promisors = promisors->next; + while (config->promisors) { + struct promisor_remote *r = config->promisors; + config->promisors = config->promisors->next; free(r); } - promisors_tail = &promisors; + config->promisors_tail = &config->promisors; } -void promisor_remote_reinit(void) +void repo_promisor_remote_reinit(struct repository *r) { - initialized = 0; - promisor_remote_clear(); - promisor_remote_init(); + promisor_remote_clear(r->promisor_remote_config); + FREE_AND_NULL(r->promisor_remote_config); + promisor_remote_init(r); } -struct promisor_remote *promisor_remote_find(const char *remote_name) +struct promisor_remote *repo_promisor_remote_find(struct repository *r, + const char *remote_name) { - promisor_remote_init(); + promisor_remote_init(r); if (!remote_name) - return promisors; + return r->promisor_remote_config->promisors; - return promisor_remote_lookup(remote_name, NULL); + return promisor_remote_lookup(r->promisor_remote_config, remote_name, NULL); } -int has_promisor_remote(void) +int repo_has_promisor_remote(struct repository *r) { - return !!promisor_remote_find(NULL); + return !!repo_promisor_remote_find(r, NULL); } static int remove_fetched_oids(struct repository *repo, @@ -238,9 +243,9 @@ int promisor_remote_get_direct(struct repository *repo, if (oid_nr == 0) return 0; - promisor_remote_init(); + promisor_remote_init(repo); - for (r = promisors; r; r = r->next) { + for (r = repo->promisor_remote_config->promisors; r; r = r->next) { if (fetch_objects(repo, r->name, remaining_oids, remaining_nr) < 0) { if (remaining_nr == 1) continue; diff --git a/promisor-remote.h b/promisor-remote.h index c7a14063c5..edc45ab0f5 100644 --- a/promisor-remote.h +++ b/promisor-remote.h @@ -17,9 +17,25 @@ struct promisor_remote { const char name[FLEX_ARRAY]; }; -void promisor_remote_reinit(void); -struct promisor_remote *promisor_remote_find(const char *remote_name); -int has_promisor_remote(void); +void repo_promisor_remote_reinit(struct repository *r); +static inline void promisor_remote_reinit(void) +{ + repo_promisor_remote_reinit(the_repository); +} + +void promisor_remote_clear(struct promisor_remote_config *config); + +struct promisor_remote *repo_promisor_remote_find(struct repository *r, const char *remote_name); +static inline struct promisor_remote *promisor_remote_find(const char *remote_name) +{ + return repo_promisor_remote_find(the_repository, remote_name); +} + +int repo_has_promisor_remote(struct repository *r); +static inline int has_promisor_remote(void) +{ + return repo_has_promisor_remote(the_repository); +} /* * Fetches all requested objects from all promisor remotes, trying them one at @@ -32,10 +48,4 @@ int promisor_remote_get_direct(struct repository *repo, const struct object_id *oids, int oid_nr); -/* - * This should be used only once from setup.c to set the value we got - * from the extensions.partialclone config option. - */ -void set_repository_format_partial_clone(char *partial_clone); - #endif /* PROMISOR_REMOTE_H */ diff --git a/repository.c b/repository.c index 448cd557d4..b2bf44c6fa 100644 --- a/repository.c +++ b/repository.c @@ -11,6 +11,7 @@ #include "lockfile.h" #include "submodule-config.h" #include "sparse-index.h" +#include "promisor-remote.h" /* The main repository */ static struct repository the_repo; @@ -172,6 +173,10 @@ int repo_init(struct repository *repo, repo_set_hash_algo(repo, format.hash_algo); + /* take ownership of format.partial_clone */ + repo->repository_format_partial_clone = format.partial_clone; + format.partial_clone = NULL; + if (worktree) repo_set_worktree(repo, worktree); @@ -258,6 +263,11 @@ void repo_clear(struct repository *repo) if (repo->index != &the_index) FREE_AND_NULL(repo->index); } + + if (repo->promisor_remote_config) { + promisor_remote_clear(repo->promisor_remote_config); + FREE_AND_NULL(repo->promisor_remote_config); + } } int repo_read_index(struct repository *repo) diff --git a/repository.h b/repository.h index a45f7520fd..3740c93bc0 100644 --- a/repository.h +++ b/repository.h @@ -10,6 +10,7 @@ struct lock_file; struct pathspec; struct raw_object_store; struct submodule_cache; +struct promisor_remote_config; enum untracked_cache_setting { UNTRACKED_CACHE_UNSET = -1, @@ -139,6 +140,10 @@ struct repository { /* True if commit-graph has been disabled within this process. */ int commit_graph_disabled; + /* Configurations related to promisor remotes. */ + char *repository_format_partial_clone; + struct promisor_remote_config *promisor_remote_config; + /* Configurations */ /* Indicate if a repository has a different 'commondir' from 'gitdir' */ diff --git a/run-command.c b/run-command.c index 8750df16d8..f72e72cce7 100644 --- a/run-command.c +++ b/run-command.c @@ -1891,3 +1891,15 @@ int run_auto_maintenance(int quiet) return run_command(&maint); } + +void prepare_other_repo_env(struct strvec *env_array, const char *new_git_dir) +{ + const char * const *var; + + for (var = local_repo_env; *var; var++) { + if (strcmp(*var, CONFIG_DATA_ENVIRONMENT) && + strcmp(*var, CONFIG_COUNT_ENVIRONMENT)) + strvec_push(env_array, *var); + } + strvec_pushf(env_array, "%s=%s", GIT_DIR_ENVIRONMENT, new_git_dir); +} diff --git a/run-command.h b/run-command.h index 62a922d23f..af1296769f 100644 --- a/run-command.h +++ b/run-command.h @@ -486,4 +486,14 @@ int run_processes_parallel_tr2(int n, get_next_task_fn, start_failure_fn, task_finished_fn, void *pp_cb, const char *tr2_category, const char *tr2_label); +/** + * Convenience function which prepares env_array for a command to be run in a + * new repo. This adds all GIT_* environment variables to env_array with the + * exception of GIT_CONFIG_PARAMETERS and GIT_CONFIG_COUNT (which cause the + * corresponding environment variables to be unset in the subprocess) and adds + * an environment variable pointing to new_git_dir. See local_repo_env in + * cache.h for more information. + */ +void prepare_other_repo_env(struct strvec *env_array, const char *new_git_dir); + #endif @@ -468,8 +468,6 @@ static enum extension_result handle_extension_v0(const char *var, data->precious_objects = git_config_bool(var, value); return EXTENSION_OK; } else if (!strcmp(ext, "partialclone")) { - if (!value) - return config_error_nonbool(var); data->partial_clone = xstrdup(value); return EXTENSION_OK; } else if (!strcmp(ext, "worktreeconfig")) { @@ -566,7 +564,6 @@ static int check_repository_format_gently(const char *gitdir, struct repository_ } repository_format_precious_objects = candidate->precious_objects; - set_repository_format_partial_clone(candidate->partial_clone); repository_format_worktree_config = candidate->worktree_config; string_list_clear(&candidate->unknown_extensions, 0); string_list_clear(&candidate->v1_only_extensions, 0); @@ -1197,6 +1194,11 @@ int discover_git_directory(struct strbuf *commondir, return -1; } + /* take ownership of candidate.partial_clone */ + the_repository->repository_format_partial_clone = + candidate.partial_clone; + candidate.partial_clone = NULL; + clear_repository_format(&candidate); return 0; } @@ -1304,8 +1306,13 @@ const char *setup_git_directory_gently(int *nongit_ok) gitdir = DEFAULT_GIT_DIR_ENVIRONMENT; setup_git_env(gitdir); } - if (startup_info->have_repository) + if (startup_info->have_repository) { repo_set_hash_algo(the_repository, repo_fmt.hash_algo); + /* take ownership of repo_fmt.partial_clone */ + the_repository->repository_format_partial_clone = + repo_fmt.partial_clone; + repo_fmt.partial_clone = NULL; + } } /* * Since precompose_string_if_needed() needs to look at @@ -1390,6 +1397,8 @@ void check_repository_format(struct repository_format *fmt) check_repository_format_gently(get_git_dir(), fmt, NULL); startup_info->have_repository = 1; repo_set_hash_algo(the_repository, fmt->hash_algo); + the_repository->repository_format_partial_clone = + xstrdup_or_null(fmt->partial_clone); clear_repository_format(&repo_fmt); } diff --git a/submodule.c b/submodule.c index 0b1d9c1dde..8e611fe1db 100644 --- a/submodule.c +++ b/submodule.c @@ -484,27 +484,14 @@ static void print_submodule_diff_summary(struct repository *r, struct rev_info * strbuf_release(&sb); } -static void prepare_submodule_repo_env_no_git_dir(struct strvec *out) -{ - const char * const *var; - - for (var = local_repo_env; *var; var++) { - if (strcmp(*var, CONFIG_DATA_ENVIRONMENT)) - strvec_push(out, *var); - } -} - void prepare_submodule_repo_env(struct strvec *out) { - prepare_submodule_repo_env_no_git_dir(out); - strvec_pushf(out, "%s=%s", GIT_DIR_ENVIRONMENT, - DEFAULT_GIT_DIR_ENVIRONMENT); + prepare_other_repo_env(out, DEFAULT_GIT_DIR_ENVIRONMENT); } static void prepare_submodule_repo_env_in_gitdir(struct strvec *out) { - prepare_submodule_repo_env_no_git_dir(out); - strvec_pushf(out, "%s=.", GIT_DIR_ENVIRONMENT); + prepare_other_repo_env(out, "."); } /* diff --git a/t/helper/test-partial-clone.c b/t/helper/test-partial-clone.c new file mode 100644 index 0000000000..3f102cfddd --- /dev/null +++ b/t/helper/test-partial-clone.c @@ -0,0 +1,43 @@ +#include "cache.h" +#include "test-tool.h" +#include "repository.h" +#include "object-store.h" + +/* + * Prints the size of the object corresponding to the given hash in a specific + * gitdir. This is similar to "git -C gitdir cat-file -s", except that this + * exercises the code that accesses the object of an arbitrary repository that + * is not the_repository. ("git -C gitdir" makes it so that the_repository is + * the one in gitdir.) + */ +static void object_info(const char *gitdir, const char *oid_hex) +{ + struct repository r; + struct object_id oid; + unsigned long size; + struct object_info oi = {.sizep = &size}; + const char *p; + + if (repo_init(&r, gitdir, NULL)) + die("could not init repo"); + if (parse_oid_hex(oid_hex, &oid, &p)) + die("could not parse oid"); + if (oid_object_info_extended(&r, &oid, &oi, 0)) + die("could not obtain object info"); + printf("%d\n", (int) size); +} + +int cmd__partial_clone(int argc, const char **argv) +{ + setup_git_directory(); + + if (argc < 4) + die("too few arguments"); + + if (!strcmp(argv[1], "object-info")) + object_info(argv[2], argv[3]); + else + die("invalid argument '%s'", argv[1]); + + return 0; +} diff --git a/t/helper/test-tool.c b/t/helper/test-tool.c index c5bd0c6d4c..b21e8f1519 100644 --- a/t/helper/test-tool.c +++ b/t/helper/test-tool.c @@ -46,6 +46,7 @@ static struct test_cmd cmds[] = { { "online-cpus", cmd__online_cpus }, { "parse-options", cmd__parse_options }, { "parse-pathspec-file", cmd__parse_pathspec_file }, + { "partial-clone", cmd__partial_clone }, { "path-utils", cmd__path_utils }, { "pcre2-config", cmd__pcre2_config }, { "pkt-line", cmd__pkt_line }, diff --git a/t/helper/test-tool.h b/t/helper/test-tool.h index e8069a3b22..f845ced4b3 100644 --- a/t/helper/test-tool.h +++ b/t/helper/test-tool.h @@ -35,6 +35,7 @@ int cmd__oidmap(int argc, const char **argv); int cmd__online_cpus(int argc, const char **argv); int cmd__parse_options(int argc, const char **argv); int cmd__parse_pathspec_file(int argc, const char** argv); +int cmd__partial_clone(int argc, const char **argv); int cmd__path_utils(int argc, const char **argv); int cmd__pcre2_config(int argc, const char **argv); int cmd__pkt_line(int argc, const char **argv); diff --git a/t/t0410-partial-clone.sh b/t/t0410-partial-clone.sh index 584a039b85..a211a66c67 100755 --- a/t/t0410-partial-clone.sh +++ b/t/t0410-partial-clone.sh @@ -604,6 +604,29 @@ test_expect_success 'do not fetch when checking existence of tree we construct o git -C repo cherry-pick side1 ' +test_expect_success 'lazy-fetch when accessing object not in the_repository' ' + rm -rf full partial.git && + test_create_repo full && + test_commit -C full create-a-file file.txt && + + test_config -C full uploadpack.allowfilter 1 && + test_config -C full uploadpack.allowanysha1inwant 1 && + git clone --filter=blob:none --bare "file://$(pwd)/full" partial.git && + FILE_HASH=$(git -C full rev-parse HEAD:file.txt) && + + # Sanity check that the file is missing + git -C partial.git rev-list --objects --missing=print HEAD >out && + grep "[?]$FILE_HASH" out && + + git -C full cat-file -s "$FILE_HASH" >expect && + test-tool partial-clone object-info partial.git "$FILE_HASH" >actual && + test_cmp expect actual && + + # Sanity check that the file is now present + git -C partial.git rev-list --objects --missing=print HEAD >out && + ! grep "[?]$FILE_HASH" out +' + . "$TEST_DIRECTORY"/lib-httpd.sh start_httpd |