From ff5ebe39b0ca5cbdcbe11f092b5b43dbeada820e Mon Sep 17 00:00:00 2001 From: Daniel Barkalow Date: Mon, 18 Apr 2005 11:39:48 -0700 Subject: [PATCH] [PATCH] Port fsck-cache to use parsing functions This ports fsck-cache to use parsing functions. Note that performance could be improved here by only reading each object once, but this requires somewhat more complicated flow control. Signed-Off-By: Daniel Barkalow Signed-off-by: Linus Torvalds --- Makefile | 4 +- fsck-cache.c | 106 +++++++++++++++++---------------------------------- 2 files changed, 38 insertions(+), 72 deletions(-) diff --git a/Makefile b/Makefile index f6de84861..b04c0d8a9 100644 --- a/Makefile +++ b/Makefile @@ -43,8 +43,8 @@ commit-tree: commit-tree.o read-cache.o cat-file: cat-file.o read-cache.o $(CC) $(CFLAGS) -o cat-file cat-file.o read-cache.o $(LIBS) -fsck-cache: fsck-cache.o read-cache.o - $(CC) $(CFLAGS) -o fsck-cache fsck-cache.o read-cache.o $(LIBS) +fsck-cache: fsck-cache.o read-cache.o object.o commit.o tree.o blob.o + $(CC) $(CFLAGS) -o fsck-cache fsck-cache.o read-cache.o object.o commit.o tree.o blob.o $(LIBS) checkout-cache: checkout-cache.o read-cache.o $(CC) $(CFLAGS) -o checkout-cache checkout-cache.o read-cache.o $(LIBS) diff --git a/fsck-cache.c b/fsck-cache.c index a8050f84a..b59e1b959 100644 --- a/fsck-cache.c +++ b/fsck-cache.c @@ -3,7 +3,11 @@ #include #include -#include "revision.h" +#include "commit.h" +#include "tree.h" +#include "blob.h" + +#define REACHABLE 0x0001 static int show_unreachable = 0; static unsigned char head_sha1[20]; @@ -13,96 +17,54 @@ static void check_connectivity(void) int i; /* Look up all the requirements, warn about missing objects.. */ - for (i = 0; i < nr_revs; i++) { - struct revision *rev = revs[i]; + for (i = 0; i < nr_objs; i++) { + struct object *obj = objs[i]; - if (show_unreachable && !(rev->flags & REACHABLE)) { - printf("unreachable %s\n", sha1_to_hex(rev->sha1)); + if (show_unreachable && !(obj->flags & REACHABLE)) { + printf("unreachable %s\n", sha1_to_hex(obj->sha1)); continue; } - switch (rev->flags & (SEEN | USED)) { - case 0: - printf("bad %s\n", sha1_to_hex(rev->sha1)); - break; - case USED: - printf("missing %s\n", sha1_to_hex(rev->sha1)); - break; - case SEEN: - printf("dangling %s\n", sha1_to_hex(rev->sha1)); - break; + if (!obj->parsed) { + printf("missing %s %s\n", obj->type, + sha1_to_hex(obj->sha1)); + } + if (!obj->used) { + printf("dangling %s %s\n", obj->type, + sha1_to_hex(obj->sha1)); } } } -static void mark_needs_sha1(unsigned char *parent, const char * tag, unsigned char *child) -{ - struct revision * child_rev = add_relationship(lookup_rev(parent), child); - child_rev->flags |= USED; -} - -static int mark_sha1_seen(unsigned char *sha1, char *tag) -{ - struct revision *rev = lookup_rev(sha1); - - rev->flags |= SEEN; - return 0; -} - static int fsck_tree(unsigned char *sha1, void *data, unsigned long size) { - int warn_old_tree = 1; - - while (size) { - int len = 1+strlen(data); - unsigned char *file_sha1 = data + len; - char *path = strchr(data, ' '); - unsigned int mode; - if (size < len + 20 || !path || sscanf(data, "%o", &mode) != 1) - return -1; - - /* Warn about trees that don't do the recursive thing.. */ - if (warn_old_tree && strchr(path, '/')) { - fprintf(stderr, "warning: fsck-cache: tree %s has full pathnames in it\n", sha1_to_hex(sha1)); - warn_old_tree = 0; - } - - data += len + 20; - size -= len + 20; - mark_needs_sha1(sha1, S_ISDIR(mode) ? "tree" : "blob", file_sha1); + struct tree *item = lookup_tree(sha1); + if (parse_tree(item)) + return -1; + if (item->has_full_path) { + fprintf(stderr, "warning: fsck-cache: tree %s " + "has full pathnames in it\n", sha1_to_hex(sha1)); } return 0; } static int fsck_commit(unsigned char *sha1, void *data, unsigned long size) { - int parents; - unsigned char tree_sha1[20]; - unsigned char parent_sha1[20]; - - if (memcmp(data, "tree ", 5)) + struct commit *commit = lookup_commit(sha1); + if (parse_commit(commit)) return -1; - if (get_sha1_hex(data + 5, tree_sha1) < 0) + if (!commit->tree) return -1; - mark_needs_sha1(sha1, "tree", tree_sha1); - data += 5 + 40 + 1; /* "tree " + + '\n' */ - parents = 0; - while (!memcmp(data, "parent ", 7)) { - if (get_sha1_hex(data + 7, parent_sha1) < 0) - return -1; - mark_needs_sha1(sha1, "commit", parent_sha1); - data += 7 + 40 + 1; /* "parent " + + '\n' */ - parents++; - } - if (!parents) + if (!commit->parents) printf("root %s\n", sha1_to_hex(sha1)); return 0; } -static int fsck_entry(unsigned char *sha1, char *tag, void *data, unsigned long size) +static int fsck_entry(unsigned char *sha1, char *tag, void *data, + unsigned long size) { if (!strcmp(tag, "blob")) { - /* Nothing to check */; + lookup_blob(sha1); /* Nothing to check; but notice it. */ } else if (!strcmp(tag, "tree")) { if (fsck_tree(sha1, data, size) < 0) return -1; @@ -111,7 +73,7 @@ static int fsck_entry(unsigned char *sha1, char *tag, void *data, unsigned long return -1; } else return -1; - return mark_sha1_seen(sha1, tag); + return 0; } static int fsck_name(char *hex) @@ -125,7 +87,8 @@ static int fsck_name(char *hex) unsigned long size; void *buffer = NULL; if (!check_sha1_signature(sha1, map, mapsize)) - buffer = unpack_sha1_file(map, mapsize, type, &size); + buffer = unpack_sha1_file(map, mapsize, type, + &size); munmap(map, mapsize); if (buffer && !fsck_entry(sha1, type, buffer, size)) return 0; @@ -186,7 +149,10 @@ int main(int argc, char **argv) continue; } if (!get_sha1_hex(argv[i], head_sha1)) { - mark_reachable(lookup_rev(head_sha1), REACHABLE); + struct object *obj = + &lookup_commit(head_sha1)->object; + obj->used = 1; + mark_reachable(obj, REACHABLE); heads++; continue; } -- 2.26.2