diff options
Diffstat (limited to 'pull.c')
| -rw-r--r-- | pull.c | 210 |
1 files changed, 0 insertions, 210 deletions
diff --git a/pull.c b/pull.c deleted file mode 100644 index e7bf83bb03..0000000000 --- a/pull.c +++ /dev/null @@ -1,210 +0,0 @@ -#include "pull.h" - -#include "cache.h" -#include "commit.h" -#include "tree.h" -#include "tag.h" -#include "blob.h" -#include "refs.h" - -const char *write_ref = NULL; - -const unsigned char *current_ref = NULL; - -int get_tree = 0; -int get_history = 0; -int get_all = 0; -int get_verbosely = 0; -static unsigned char current_commit_sha1[20]; - -void pull_say(const char *fmt, const char *hex) -{ - if (get_verbosely) - fprintf(stderr, fmt, hex); -} - -static void report_missing(const char *what, const unsigned char *missing) -{ - char missing_hex[41]; - - strcpy(missing_hex, sha1_to_hex(missing));; - fprintf(stderr, - "Cannot obtain needed %s %s\nwhile processing commit %s.\n", - what, missing_hex, sha1_to_hex(current_commit_sha1)); -} - -static int make_sure_we_have_it(const char *what, unsigned char *sha1) -{ - int status = 0; - - if (!has_sha1_file(sha1)) { - status = fetch(sha1); - if (status && what) - report_missing(what, sha1); - } - return status; -} - -static int process(unsigned char *sha1, const char *type); - -static int process_tree(struct tree *tree) -{ - struct tree_entry_list *entries; - - if (parse_tree(tree)) - return -1; - - for (entries = tree->entries; entries; entries = entries->next) { - if (process(entries->item.any->sha1, - entries->directory ? tree_type : blob_type)) - return -1; - } - return 0; -} - -static int process_commit(struct commit *commit) -{ - if (parse_commit(commit)) - return -1; - - memcpy(current_commit_sha1, commit->object.sha1, 20); - - if (get_tree) { - if (process(commit->tree->object.sha1, tree_type)) - return -1; - if (!get_all) - get_tree = 0; - } - if (get_history) { - struct commit_list *parents = commit->parents; - for (; parents; parents = parents->next) { - if (has_sha1_file(parents->item->object.sha1)) - continue; - if (process(parents->item->object.sha1, - commit_type)) - return -1; - } - } - return 0; -} - -static int process_tag(struct tag *tag) -{ - if (parse_tag(tag)) - return -1; - return process(tag->tagged->sha1, NULL); -} - -static struct object_list *process_queue = NULL; -static struct object_list **process_queue_end = &process_queue; - -static int process_object(struct object *obj) -{ - if (obj->type == commit_type) { - if (process_commit((struct commit *)obj)) - return -1; - return 0; - } - if (obj->type == tree_type) { - if (process_tree((struct tree *)obj)) - return -1; - return 0; - } - if (obj->type == blob_type) { - return 0; - } - if (obj->type == tag_type) { - if (process_tag((struct tag *)obj)) - return -1; - return 0; - } - return error("Unable to determine requirements " - "of type %s for %s", - obj->type, sha1_to_hex(obj->sha1)); -} - -static int process(unsigned char *sha1, const char *type) -{ - struct object *obj = lookup_object_type(sha1, type); - if (has_sha1_file(sha1)) { - parse_object(sha1); - /* We already have it, so we should scan it now. */ - return process_object(obj); - } - if (object_list_contains(process_queue, obj)) - return 0; - object_list_insert(obj, process_queue_end); - process_queue_end = &(*process_queue_end)->next; - - //fprintf(stderr, "prefetch %s\n", sha1_to_hex(sha1)); - prefetch(sha1); - - return 0; -} - -static int loop(void) -{ - while (process_queue) { - struct object *obj = process_queue->item; - /* - fprintf(stderr, "%d objects to pull\n", - object_list_length(process_queue)); - */ - process_queue = process_queue->next; - if (!process_queue) - process_queue_end = &process_queue; - - //fprintf(stderr, "fetch %s\n", sha1_to_hex(obj->sha1)); - - if (make_sure_we_have_it(obj->type ?: "object", - obj->sha1)) - return -1; - if (!obj->type) - parse_object(obj->sha1); - if (process_object(obj)) - return -1; - } - return 0; -} - -static int interpret_target(char *target, unsigned char *sha1) -{ - if (!get_sha1_hex(target, sha1)) - return 0; - if (!check_ref_format(target)) { - if (!fetch_ref(target, sha1)) { - return 0; - } - } - return -1; -} - - -int pull(char *target) -{ - unsigned char sha1[20]; - int fd = -1; - - if (write_ref && current_ref) { - fd = lock_ref_sha1(write_ref, current_ref); - if (fd < 0) - return -1; - } - - if (interpret_target(target, sha1)) - return error("Could not interpret %s as something to pull", - target); - if (process(sha1, NULL)) - return -1; - if (loop()) - return -1; - - if (write_ref) { - if (current_ref) { - write_ref_sha1(write_ref, fd, sha1); - } else { - write_ref_sha1_unlocked(write_ref, sha1); - } - } - return 0; -} |