Merge branch 'en/rebase-i-microfixes'
[gitweb.git] / shallow.c
index 2abebeb8c857067315cf79b96dbba6b26a69a076..e53067cdede4865e144713502055a04cf230c926 100644 (file)
--- a/shallow.c
+++ b/shallow.c
@@ -1,6 +1,8 @@
 #include "cache.h"
+#include "repository.h"
 #include "tempfile.h"
 #include "lockfile.h"
+#include "object-store.h"
 #include "commit.h"
 #include "tag.h"
 #include "pkt-line.h"
 #include "revision.h"
 #include "list-objects.h"
 #include "commit-slab.h"
+#include "repository.h"
 
-static int is_shallow = -1;
-static struct stat_validity shallow_stat;
-static char *alternate_shallow_file;
-
-void set_alternate_shallow_file(const char *path, int override)
+void set_alternate_shallow_file(struct repository *r, const char *path, int override)
 {
-       if (is_shallow != -1)
+       if (r->parsed_objects->is_shallow != -1)
                BUG("is_repository_shallow must not be called before set_alternate_shallow_file");
-       if (alternate_shallow_file && !override)
+       if (r->parsed_objects->alternate_shallow_file && !override)
                return;
-       free(alternate_shallow_file);
-       alternate_shallow_file = xstrdup_or_null(path);
+       free(r->parsed_objects->alternate_shallow_file);
+       r->parsed_objects->alternate_shallow_file = xstrdup_or_null(path);
 }
 
-int register_shallow(const struct object_id *oid)
+int register_shallow(struct repository *r, const struct object_id *oid)
 {
        struct commit_graft *graft =
                xmalloc(sizeof(struct commit_graft));
@@ -38,41 +37,41 @@ int register_shallow(const struct object_id *oid)
        graft->nr_parent = -1;
        if (commit && commit->object.parsed)
                commit->parents = NULL;
-       return register_commit_graft(graft, 0);
+       return register_commit_graft(r, graft, 0);
 }
 
-int is_repository_shallow(void)
+int is_repository_shallow(struct repository *r)
 {
        FILE *fp;
        char buf[1024];
-       const char *path = alternate_shallow_file;
+       const char *path = r->parsed_objects->alternate_shallow_file;
 
-       if (is_shallow >= 0)
-               return is_shallow;
+       if (r->parsed_objects->is_shallow >= 0)
+               return r->parsed_objects->is_shallow;
 
        if (!path)
-               path = git_path_shallow();
+               path = git_path_shallow(r);
        /*
         * fetch-pack sets '--shallow-file ""' as an indicator that no
         * shallow file should be used. We could just open it and it
         * will likely fail. But let's do an explicit check instead.
         */
        if (!*path || (fp = fopen(path, "r")) == NULL) {
-               stat_validity_clear(&shallow_stat);
-               is_shallow = 0;
-               return is_shallow;
+               stat_validity_clear(r->parsed_objects->shallow_stat);
+               r->parsed_objects->is_shallow = 0;
+               return r->parsed_objects->is_shallow;
        }
-       stat_validity_update(&shallow_stat, fileno(fp));
-       is_shallow = 1;
+       stat_validity_update(r->parsed_objects->shallow_stat, fileno(fp));
+       r->parsed_objects->is_shallow = 1;
 
        while (fgets(buf, sizeof(buf), fp)) {
                struct object_id oid;
                if (get_oid_hex(buf, &oid))
                        die("bad shallow line: %s", buf);
-               register_shallow(&oid);
+               register_shallow(r, &oid);
        }
        fclose(fp);
-       return is_shallow;
+       return r->parsed_objects->is_shallow;
 }
 
 /*
@@ -116,8 +115,8 @@ struct commit_list *get_shallow_commits(struct object_array *heads, int depth,
                parse_commit_or_die(commit);
                cur_depth++;
                if ((depth != INFINITE_DEPTH && cur_depth >= depth) ||
-                   (is_repository_shallow() && !commit->parents &&
-                    (graft = lookup_commit_graft(&commit->object.oid)) != NULL &&
+                   (is_repository_shallow(the_repository) && !commit->parents &&
+                    (graft = lookup_commit_graft(the_repository, &commit->object.oid)) != NULL &&
                     graft->nr_parent < 0)) {
                        commit_list_insert(commit, &result);
                        commit->object.flags |= shallow_flag;
@@ -181,7 +180,7 @@ struct commit_list *get_shallow_commits_by_rev_list(int ac, const char **av,
         */
        clear_object_flags(both_flags);
 
-       is_repository_shallow(); /* make sure shallows are read */
+       is_repository_shallow(the_repository); /* make sure shallows are read */
 
        init_revisions(&revs, NULL);
        save_commit_buffer = 0;
@@ -191,6 +190,9 @@ struct commit_list *get_shallow_commits_by_rev_list(int ac, const char **av,
                die("revision walk setup failed");
        traverse_commit_list(&revs, show_commit, NULL, &not_shallow_list);
 
+       if (!not_shallow_list)
+               die("no commits selected for shallow requests");
+
        /* Mark all reachable commits as NOT_SHALLOW */
        for (p = not_shallow_list; p; p = p->next)
                p->item->object.flags |= not_shallow_flag;
@@ -231,12 +233,12 @@ struct commit_list *get_shallow_commits_by_rev_list(int ac, const char **av,
        return result;
 }
 
-static void check_shallow_file_for_update(void)
+static void check_shallow_file_for_update(struct repository *r)
 {
-       if (is_shallow == -1)
+       if (r->parsed_objects->is_shallow == -1)
                BUG("shallow must be initialized by now");
 
-       if (!stat_validity_check(&shallow_stat, git_path_shallow()))
+       if (!stat_validity_check(r->parsed_objects->shallow_stat, git_path_shallow(the_repository)))
                die("shallow file has changed since we read it");
 }
 
@@ -331,9 +333,10 @@ void setup_alternate_shallow(struct lock_file *shallow_lock,
        struct strbuf sb = STRBUF_INIT;
        int fd;
 
-       fd = hold_lock_file_for_update(shallow_lock, git_path_shallow(),
+       fd = hold_lock_file_for_update(shallow_lock,
+                                      git_path_shallow(the_repository),
                                       LOCK_DIE_ON_ERROR);
-       check_shallow_file_for_update();
+       check_shallow_file_for_update(the_repository);
        if (write_shallow_commits(&sb, 0, extra)) {
                if (write_in_full(fd, sb.buf, sb.len) < 0)
                        die_errno("failed to write to %s",
@@ -358,7 +361,7 @@ static int advertise_shallow_grafts_cb(const struct commit_graft *graft, void *c
 
 void advertise_shallow_grafts(int fd)
 {
-       if (!is_repository_shallow())
+       if (!is_repository_shallow(the_repository))
                return;
        for_each_commit_graft(advertise_shallow_grafts_cb, &fd);
 }
@@ -378,16 +381,17 @@ void prune_shallow(int show_only)
                strbuf_release(&sb);
                return;
        }
-       fd = hold_lock_file_for_update(&shallow_lock, git_path_shallow(),
+       fd = hold_lock_file_for_update(&shallow_lock,
+                                      git_path_shallow(the_repository),
                                       LOCK_DIE_ON_ERROR);
-       check_shallow_file_for_update();
+       check_shallow_file_for_update(the_repository);
        if (write_shallow_commits_1(&sb, 0, NULL, SEEN_ONLY)) {
                if (write_in_full(fd, sb.buf, sb.len) < 0)
                        die_errno("failed to write to %s",
                                  get_lock_file_path(&shallow_lock));
                commit_lock_file(&shallow_lock);
        } else {
-               unlink(git_path_shallow());
+               unlink(git_path_shallow(the_repository));
                rollback_lock_file(&shallow_lock);
        }
        strbuf_release(&sb);
@@ -412,7 +416,8 @@ void prepare_shallow_info(struct shallow_info *info, struct oid_array *sa)
        for (i = 0; i < sa->nr; i++) {
                if (has_object_file(sa->oid + i)) {
                        struct commit_graft *graft;
-                       graft = lookup_commit_graft(&sa->oid[i]);
+                       graft = lookup_commit_graft(the_repository,
+                                                   &sa->oid[i]);
                        if (graft && graft->nr_parent < 0)
                                continue;
                        info->ours[info->nr_ours++] = i;