diff options
Diffstat (limited to 'read-cache.c')
| -rw-r--r-- | read-cache.c | 149 |
1 files changed, 60 insertions, 89 deletions
diff --git a/read-cache.c b/read-cache.c index 35e5657877..f4c31a68c8 100644 --- a/read-cache.c +++ b/read-cache.c @@ -4,23 +4,34 @@ * Copyright (C) Linus Torvalds, 2005 */ #include "cache.h" +#include "alloc.h" #include "config.h" +#include "date.h" #include "diff.h" #include "diffcore.h" +#include "hex.h" #include "tempfile.h" #include "lockfile.h" #include "cache-tree.h" #include "refs.h" #include "dir.h" +#include "object-file.h" #include "object-store.h" +#include "oid-array.h" #include "tree.h" #include "commit.h" #include "blob.h" +#include "environment.h" +#include "gettext.h" +#include "mem-pool.h" +#include "object-name.h" #include "resolve-undo.h" #include "run-command.h" #include "strbuf.h" +#include "trace2.h" #include "varint.h" #include "split-index.h" +#include "symlinks.h" #include "utf8.h" #include "fsmonitor.h" #include "thread-utils.h" @@ -29,6 +40,7 @@ #include "csum-file.h" #include "promisor-remote.h" #include "hook.h" +#include "wrapper.h" /* Mask for the name length in ce_flags in the on-disk index */ @@ -263,7 +275,7 @@ static int ce_compare_link(const struct cache_entry *ce, size_t expected_size) if (strbuf_readlink(&sb, ce->name, expected_size)) return -1; - buffer = read_object_file(&ce->oid, &type, &size); + buffer = repo_read_object_file(the_repository, &ce->oid, &type, &size); if (buffer) { if (size == sb.len) match = memcmp(buffer, sb.buf, size); @@ -488,87 +500,30 @@ int ie_modified(struct index_state *istate, return 0; } -int base_name_compare(const char *name1, size_t len1, int mode1, - const char *name2, size_t len2, int mode2) +static int cache_name_stage_compare(const char *name1, int len1, int stage1, + const char *name2, int len2, int stage2) { - unsigned char c1, c2; - size_t len = len1 < len2 ? len1 : len2; int cmp; - cmp = memcmp(name1, name2, len); - if (cmp) - return cmp; - c1 = name1[len]; - c2 = name2[len]; - if (!c1 && S_ISDIR(mode1)) - c1 = '/'; - if (!c2 && S_ISDIR(mode2)) - c2 = '/'; - return (c1 < c2) ? -1 : (c1 > c2) ? 1 : 0; -} - -/* - * df_name_compare() is identical to base_name_compare(), except it - * compares conflicting directory/file entries as equal. Note that - * while a directory name compares as equal to a regular file, they - * then individually compare _differently_ to a filename that has - * a dot after the basename (because '\0' < '.' < '/'). - * - * This is used by routines that want to traverse the git namespace - * but then handle conflicting entries together when possible. - */ -int df_name_compare(const char *name1, size_t len1, int mode1, - const char *name2, size_t len2, int mode2) -{ - unsigned char c1, c2; - size_t len = len1 < len2 ? len1 : len2; - int cmp; - - cmp = memcmp(name1, name2, len); + cmp = name_compare(name1, len1, name2, len2); if (cmp) return cmp; - /* Directories and files compare equal (same length, same name) */ - if (len1 == len2) - return 0; - c1 = name1[len]; - if (!c1 && S_ISDIR(mode1)) - c1 = '/'; - c2 = name2[len]; - if (!c2 && S_ISDIR(mode2)) - c2 = '/'; - if (c1 == '/' && !c2) - return 0; - if (c2 == '/' && !c1) - return 0; - return c1 - c2; -} -int name_compare(const char *name1, size_t len1, const char *name2, size_t len2) -{ - size_t min_len = (len1 < len2) ? len1 : len2; - int cmp = memcmp(name1, name2, min_len); - if (cmp) - return cmp; - if (len1 < len2) + if (stage1 < stage2) return -1; - if (len1 > len2) + if (stage1 > stage2) return 1; return 0; } -int cache_name_stage_compare(const char *name1, int len1, int stage1, const char *name2, int len2, int stage2) +int cmp_cache_name_compare(const void *a_, const void *b_) { - int cmp; - - cmp = name_compare(name1, len1, name2, len2); - if (cmp) - return cmp; + const struct cache_entry *ce1, *ce2; - if (stage1 < stage2) - return -1; - if (stage1 > stage2) - return 1; - return 0; + ce1 = *((const struct cache_entry **)a_); + ce2 = *((const struct cache_entry **)b_); + return cache_name_stage_compare(ce1->name, ce1->ce_namelen, ce_stage(ce1), + ce2->name, ce2->ce_namelen, ce_stage(ce2)); } static int index_name_stage_pos(struct index_state *istate, @@ -2628,7 +2583,7 @@ int repo_index_has_changes(struct repository *repo, if (tree) cmp = tree->object.oid; - if (tree || !get_oid_tree("HEAD", &cmp)) { + if (tree || !repo_get_oid_tree(repo, "HEAD", &cmp)) { struct diff_options opt; repo_diff_setup(repo, &opt); @@ -2901,6 +2856,16 @@ static int record_ieot(void) return !git_config_get_index_threads(&val) && val != 1; } +enum write_extensions { + WRITE_NO_EXTENSION = 0, + WRITE_SPLIT_INDEX_EXTENSION = 1<<0, + WRITE_CACHE_TREE_EXTENSION = 1<<1, + WRITE_RESOLVE_UNDO_EXTENSION = 1<<2, + WRITE_UNTRACKED_CACHE_EXTENSION = 1<<3, + WRITE_FSMONITOR_EXTENSION = 1<<4, +}; +#define WRITE_ALL_EXTENSIONS ((enum write_extensions)-1) + /* * On success, `tempfile` is closed. If it is the temporary file * of a `struct lock_file`, we will therefore effectively perform @@ -2909,7 +2874,7 @@ static int record_ieot(void) * rely on it. */ static int do_write_index(struct index_state *istate, struct tempfile *tempfile, - int strip_extensions, unsigned flags) + enum write_extensions write_extensions, unsigned flags) { uint64_t start = getnanotime(); struct hashfile *f; @@ -2947,7 +2912,7 @@ static int do_write_index(struct index_state *istate, struct tempfile *tempfile, } if (!istate->version) - istate->version = get_index_format_default(the_repository); + istate->version = get_index_format_default(r); /* demote version 3 to version 2 when the latter suffices */ if (istate->version == 3 || istate->version == 2) @@ -3082,8 +3047,8 @@ static int do_write_index(struct index_state *istate, struct tempfile *tempfile, return -1; } - if (!strip_extensions && istate->split_index && - !is_null_oid(&istate->split_index->base_oid)) { + if (write_extensions & WRITE_SPLIT_INDEX_EXTENSION && + istate->split_index) { struct strbuf sb = STRBUF_INIT; if (istate->sparse_index) @@ -3097,7 +3062,8 @@ static int do_write_index(struct index_state *istate, struct tempfile *tempfile, if (err) return -1; } - if (!strip_extensions && !drop_cache_tree && istate->cache_tree) { + if (write_extensions & WRITE_CACHE_TREE_EXTENSION && + !drop_cache_tree && istate->cache_tree) { struct strbuf sb = STRBUF_INIT; cache_tree_write(&sb, istate->cache_tree); @@ -3107,7 +3073,8 @@ static int do_write_index(struct index_state *istate, struct tempfile *tempfile, if (err) return -1; } - if (!strip_extensions && istate->resolve_undo) { + if (write_extensions & WRITE_RESOLVE_UNDO_EXTENSION && + istate->resolve_undo) { struct strbuf sb = STRBUF_INIT; resolve_undo_write(&sb, istate->resolve_undo); @@ -3118,7 +3085,8 @@ static int do_write_index(struct index_state *istate, struct tempfile *tempfile, if (err) return -1; } - if (!strip_extensions && istate->untracked) { + if (write_extensions & WRITE_UNTRACKED_CACHE_EXTENSION && + istate->untracked) { struct strbuf sb = STRBUF_INIT; write_untracked_extension(&sb, istate->untracked); @@ -3129,7 +3097,8 @@ static int do_write_index(struct index_state *istate, struct tempfile *tempfile, if (err) return -1; } - if (!strip_extensions && istate->fsmonitor_last_update) { + if (write_extensions & WRITE_FSMONITOR_EXTENSION && + istate->fsmonitor_last_update) { struct strbuf sb = STRBUF_INIT; write_fsmonitor_extension(&sb, istate); @@ -3203,8 +3172,10 @@ static int commit_locked_index(struct lock_file *lk) return commit_lock_file(lk); } -static int do_write_locked_index(struct index_state *istate, struct lock_file *lock, - unsigned flags) +static int do_write_locked_index(struct index_state *istate, + struct lock_file *lock, + unsigned flags, + enum write_extensions write_extensions) { int ret; int was_full = istate->sparse_index == INDEX_EXPANDED; @@ -3222,7 +3193,7 @@ static int do_write_locked_index(struct index_state *istate, struct lock_file *l */ trace2_region_enter_printf("index", "do_write_index", the_repository, "%s", get_lock_file_path(lock)); - ret = do_write_index(istate, lock->tempfile, 0, flags); + ret = do_write_index(istate, lock->tempfile, write_extensions, flags); trace2_region_leave_printf("index", "do_write_index", the_repository, "%s", get_lock_file_path(lock)); @@ -3251,7 +3222,7 @@ static int write_split_index(struct index_state *istate, { int ret; prepare_to_write_split_index(istate); - ret = do_write_locked_index(istate, lock, flags); + ret = do_write_locked_index(istate, lock, flags, WRITE_ALL_EXTENSIONS); finish_writing_split_index(istate); return ret; } @@ -3326,7 +3297,7 @@ static int write_shared_index(struct index_state *istate, trace2_region_enter_printf("index", "shared/do_write_index", the_repository, "%s", get_tempfile_path(*temp)); - ret = do_write_index(si->base, *temp, 1, flags); + ret = do_write_index(si->base, *temp, WRITE_NO_EXTENSION, flags); trace2_region_leave_printf("index", "shared/do_write_index", the_repository, "%s", get_tempfile_path(*temp)); @@ -3403,9 +3374,8 @@ int write_locked_index(struct index_state *istate, struct lock_file *lock, if ((!si && !test_split_index_env) || alternate_index_output || (istate->cache_changed & ~EXTMASK)) { - if (si) - oidclr(&si->base_oid); - ret = do_write_locked_index(istate, lock, flags); + ret = do_write_locked_index(istate, lock, flags, + ~WRITE_SPLIT_INDEX_EXTENSION); goto out; } @@ -3431,8 +3401,8 @@ int write_locked_index(struct index_state *istate, struct lock_file *lock, /* Same initial permissions as the main .git/index file */ temp = mks_tempfile_sm(git_path("sharedindex_XXXXXX"), 0, 0666); if (!temp) { - oidclr(&si->base_oid); - ret = do_write_locked_index(istate, lock, flags); + ret = do_write_locked_index(istate, lock, flags, + ~WRITE_SPLIT_INDEX_EXTENSION); goto out; } ret = write_shared_index(istate, &temp, flags); @@ -3553,7 +3523,8 @@ void *read_blob_data_from_index(struct index_state *istate, } if (pos < 0) return NULL; - data = read_object_file(&istate->cache[pos]->oid, &type, &sz); + data = repo_read_object_file(the_repository, &istate->cache[pos]->oid, + &type, &sz); if (!data || type != OBJ_BLOB) { free(data); return NULL; |