c21fa3bb54
Rename .env_array member to .env in the child_process structure. * ab/env-array: run-command API users: use "env" not "env_array" in comments & names run-command API: rename "env_array" to "env"
268 lines
6.3 KiB
C
268 lines
6.3 KiB
C
#include "cache.h"
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#include "object-store.h"
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#include "promisor-remote.h"
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#include "config.h"
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#include "transport.h"
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#include "strvec.h"
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struct promisor_remote_config {
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struct promisor_remote *promisors;
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struct promisor_remote **promisors_tail;
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};
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static int fetch_objects(struct repository *repo,
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const char *remote_name,
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const struct object_id *oids,
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int oid_nr)
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{
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struct child_process child = CHILD_PROCESS_INIT;
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int i;
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FILE *child_in;
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child.git_cmd = 1;
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child.in = -1;
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if (repo != the_repository)
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prepare_other_repo_env(&child.env, repo->gitdir);
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strvec_pushl(&child.args, "-c", "fetch.negotiationAlgorithm=noop",
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"fetch", remote_name, "--no-tags",
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"--no-write-fetch-head", "--recurse-submodules=no",
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"--filter=blob:none", "--stdin", NULL);
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if (start_command(&child))
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die(_("promisor-remote: unable to fork off fetch subprocess"));
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child_in = xfdopen(child.in, "w");
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trace2_data_intmax("promisor", repo, "fetch_count", oid_nr);
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for (i = 0; i < oid_nr; i++) {
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if (fputs(oid_to_hex(&oids[i]), child_in) < 0)
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die_errno(_("promisor-remote: could not write to fetch subprocess"));
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if (fputc('\n', child_in) < 0)
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die_errno(_("promisor-remote: could not write to fetch subprocess"));
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}
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if (fclose(child_in) < 0)
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die_errno(_("promisor-remote: could not close stdin to fetch subprocess"));
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return finish_command(&child) ? -1 : 0;
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}
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static struct promisor_remote *promisor_remote_new(struct promisor_remote_config *config,
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const char *remote_name)
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{
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struct promisor_remote *r;
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if (*remote_name == '/') {
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warning(_("promisor remote name cannot begin with '/': %s"),
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remote_name);
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return NULL;
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}
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FLEX_ALLOC_STR(r, name, remote_name);
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*config->promisors_tail = r;
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config->promisors_tail = &r->next;
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return r;
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}
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static struct promisor_remote *promisor_remote_lookup(struct promisor_remote_config *config,
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const char *remote_name,
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struct promisor_remote **previous)
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{
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struct promisor_remote *r, *p;
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for (p = NULL, r = config->promisors; r; p = r, r = r->next)
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if (!strcmp(r->name, remote_name)) {
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if (previous)
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*previous = p;
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return r;
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}
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return NULL;
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}
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static void promisor_remote_move_to_tail(struct promisor_remote_config *config,
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struct promisor_remote *r,
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struct promisor_remote *previous)
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{
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if (!r->next)
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return;
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if (previous)
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previous->next = r->next;
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else
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config->promisors = r->next ? r->next : r;
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r->next = NULL;
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*config->promisors_tail = r;
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config->promisors_tail = &r->next;
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}
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static int promisor_remote_config(const char *var, const char *value, void *data)
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{
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struct promisor_remote_config *config = data;
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const char *name;
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size_t namelen;
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const char *subkey;
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if (parse_config_key(var, "remote", &name, &namelen, &subkey) < 0)
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return 0;
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if (!strcmp(subkey, "promisor")) {
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char *remote_name;
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if (!git_config_bool(var, value))
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return 0;
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remote_name = xmemdupz(name, namelen);
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if (!promisor_remote_lookup(config, remote_name, NULL))
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promisor_remote_new(config, remote_name);
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free(remote_name);
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return 0;
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}
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if (!strcmp(subkey, "partialclonefilter")) {
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struct promisor_remote *r;
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char *remote_name = xmemdupz(name, namelen);
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r = promisor_remote_lookup(config, remote_name, NULL);
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if (!r)
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r = promisor_remote_new(config, remote_name);
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free(remote_name);
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if (!r)
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return 0;
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return git_config_string(&r->partial_clone_filter, var, value);
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}
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return 0;
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}
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static void promisor_remote_init(struct repository *r)
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{
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struct promisor_remote_config *config;
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if (r->promisor_remote_config)
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return;
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config = r->promisor_remote_config =
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xcalloc(sizeof(*r->promisor_remote_config), 1);
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config->promisors_tail = &config->promisors;
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repo_config(r, promisor_remote_config, config);
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if (r->repository_format_partial_clone) {
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struct promisor_remote *o, *previous;
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o = promisor_remote_lookup(config,
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r->repository_format_partial_clone,
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&previous);
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if (o)
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promisor_remote_move_to_tail(config, o, previous);
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else
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promisor_remote_new(config, r->repository_format_partial_clone);
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}
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}
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void promisor_remote_clear(struct promisor_remote_config *config)
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{
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while (config->promisors) {
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struct promisor_remote *r = config->promisors;
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config->promisors = config->promisors->next;
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free(r);
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}
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config->promisors_tail = &config->promisors;
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}
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void repo_promisor_remote_reinit(struct repository *r)
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{
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promisor_remote_clear(r->promisor_remote_config);
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FREE_AND_NULL(r->promisor_remote_config);
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promisor_remote_init(r);
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}
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struct promisor_remote *repo_promisor_remote_find(struct repository *r,
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const char *remote_name)
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{
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promisor_remote_init(r);
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if (!remote_name)
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return r->promisor_remote_config->promisors;
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return promisor_remote_lookup(r->promisor_remote_config, remote_name, NULL);
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}
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int repo_has_promisor_remote(struct repository *r)
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{
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return !!repo_promisor_remote_find(r, NULL);
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}
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static int remove_fetched_oids(struct repository *repo,
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struct object_id **oids,
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int oid_nr, int to_free)
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{
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int i, remaining_nr = 0;
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int *remaining = xcalloc(oid_nr, sizeof(*remaining));
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struct object_id *old_oids = *oids;
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struct object_id *new_oids;
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for (i = 0; i < oid_nr; i++)
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if (oid_object_info_extended(repo, &old_oids[i], NULL,
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OBJECT_INFO_SKIP_FETCH_OBJECT)) {
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remaining[i] = 1;
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remaining_nr++;
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}
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if (remaining_nr) {
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int j = 0;
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CALLOC_ARRAY(new_oids, remaining_nr);
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for (i = 0; i < oid_nr; i++)
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if (remaining[i])
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oidcpy(&new_oids[j++], &old_oids[i]);
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*oids = new_oids;
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if (to_free)
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free(old_oids);
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}
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free(remaining);
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return remaining_nr;
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}
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int promisor_remote_get_direct(struct repository *repo,
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const struct object_id *oids,
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int oid_nr)
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{
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struct promisor_remote *r;
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struct object_id *remaining_oids = (struct object_id *)oids;
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int remaining_nr = oid_nr;
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int to_free = 0;
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int res = -1;
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if (oid_nr == 0)
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return 0;
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promisor_remote_init(repo);
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for (r = repo->promisor_remote_config->promisors; r; r = r->next) {
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if (fetch_objects(repo, r->name, remaining_oids, remaining_nr) < 0) {
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if (remaining_nr == 1)
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continue;
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remaining_nr = remove_fetched_oids(repo, &remaining_oids,
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remaining_nr, to_free);
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if (remaining_nr) {
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to_free = 1;
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continue;
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}
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}
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res = 0;
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break;
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}
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if (to_free)
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free(remaining_oids);
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return res;
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}
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