diff options
Diffstat (limited to 'src/libgit2/odb_pack.c')
-rw-r--r-- | src/libgit2/odb_pack.c | 88 |
1 files changed, 65 insertions, 23 deletions
diff --git a/src/libgit2/odb_pack.c b/src/libgit2/odb_pack.c index d6243cd93..0f55c229b 100644 --- a/src/libgit2/odb_pack.c +++ b/src/libgit2/odb_pack.c @@ -26,6 +26,7 @@ struct pack_backend { git_odb_backend parent; + git_odb_backend_pack_options opts; git_midx_file *midx; git_vector midx_packs; git_vector packs; @@ -251,7 +252,7 @@ static int packfile_load__cb(void *data, git_str *path) if (git_vector_search2(NULL, &backend->packs, packfile_byname_search_cmp, &index_prefix) == 0) return 0; - error = git_mwindow_get_pack(&pack, path->ptr); + error = git_mwindow_get_pack(&pack, path->ptr, backend->opts.oid_type); /* ignore missing .pack file as git does */ if (error == GIT_ENOTFOUND) { @@ -270,10 +271,11 @@ static int pack_entry_find(struct git_pack_entry *e, struct pack_backend *backen { struct git_pack_file *last_found = backend->last_found, *p; git_midx_entry midx_entry; + size_t oid_hexsize = git_oid_hexsize(backend->opts.oid_type); size_t i; if (backend->midx && - git_midx_entry_find(&midx_entry, backend->midx, oid, GIT_OID_SHA1_HEXSIZE) == 0 && + git_midx_entry_find(&midx_entry, backend->midx, oid, oid_hexsize) == 0 && midx_entry.pack_index < git_vector_length(&backend->midx_packs)) { e->offset = midx_entry.offset; git_oid_cpy(&e->id, &midx_entry.sha1); @@ -282,21 +284,21 @@ static int pack_entry_find(struct git_pack_entry *e, struct pack_backend *backen } if (last_found && - git_pack_entry_find(e, last_found, oid, GIT_OID_SHA1_HEXSIZE) == 0) + git_pack_entry_find(e, last_found, oid, oid_hexsize) == 0) return 0; git_vector_foreach(&backend->packs, i, p) { if (p == last_found) continue; - if (git_pack_entry_find(e, p, oid, GIT_OID_SHA1_HEXSIZE) == 0) { + if (git_pack_entry_find(e, p, oid, oid_hexsize) == 0) { backend->last_found = p; return 0; } } return git_odb__error_notfound( - "failed to find pack entry", oid, GIT_OID_SHA1_HEXSIZE); + "failed to find pack entry", oid, oid_hexsize); } static int pack_entry_find_prefix( @@ -307,7 +309,7 @@ static int pack_entry_find_prefix( { int error; size_t i; - git_oid found_full_oid = GIT_OID_SHA1_ZERO; + git_oid found_full_oid = { 0 }; bool found = false; struct git_pack_file *last_found = backend->last_found, *p; git_midx_entry midx_entry; @@ -425,7 +427,10 @@ static int process_multi_pack_index_pack( } /* Pack was not found. Allocate a new one. */ - error = git_mwindow_get_pack(&pack, git_str_cstr(&pack_path)); + error = git_mwindow_get_pack( + &pack, + git_str_cstr(&pack_path), + backend->opts.oid_type); git_str_dispose(&pack_path); if (error < 0) return error; @@ -596,27 +601,28 @@ static int pack_backend__read_prefix( void **buffer_p, size_t *len_p, git_object_t *type_p, - git_odb_backend *backend, + git_odb_backend *_backend, const git_oid *short_oid, size_t len) { + struct pack_backend *backend = (struct pack_backend *)_backend; int error = 0; if (len < GIT_OID_MINPREFIXLEN) error = git_odb__error_ambiguous("prefix length too short"); - else if (len >= GIT_OID_SHA1_HEXSIZE) { + else if (len >= git_oid_hexsize(backend->opts.oid_type)) { /* We can fall back to regular read method */ - error = pack_backend__read(buffer_p, len_p, type_p, backend, short_oid); + error = pack_backend__read(buffer_p, len_p, type_p, _backend, short_oid); if (!error) git_oid_cpy(out_oid, short_oid); } else { struct git_pack_entry e; git_rawobj raw = {NULL}; - if ((error = pack_entry_find_prefix( - &e, (struct pack_backend *)backend, short_oid, len)) == 0 && - (error = git_packfile_unpack(&raw, e.p, &e.offset)) == 0) + if ((error = pack_entry_find_prefix(&e, + backend, short_oid, len)) == 0 && + (error = git_packfile_unpack(&raw, e.p, &e.offset)) == 0) { *buffer_p = raw.data; *len_p = raw.len; @@ -840,7 +846,10 @@ static void pack_backend__free(git_odb_backend *_backend) git__free(backend); } -static int pack_backend__alloc(struct pack_backend **out, size_t initial_size) +static int pack_backend__alloc( + struct pack_backend **out, + size_t initial_size, + const git_odb_backend_pack_options *opts) { struct pack_backend *backend = git__calloc(1, sizeof(struct pack_backend)); GIT_ERROR_CHECK_ALLOC(backend); @@ -849,12 +858,19 @@ static int pack_backend__alloc(struct pack_backend **out, size_t initial_size) git__free(backend); return -1; } + if (git_vector_init(&backend->packs, initial_size, packfile_sort__cb) < 0) { git_vector_free(&backend->midx_packs); git__free(backend); return -1; } + if (opts) + memcpy(&backend->opts, opts, sizeof(git_odb_backend_pack_options)); + + if (!backend->opts.oid_type) + backend->opts.oid_type = GIT_OID_DEFAULT; + backend->parent.version = GIT_ODB_BACKEND_VERSION; backend->parent.read = &pack_backend__read; @@ -873,17 +889,31 @@ static int pack_backend__alloc(struct pack_backend **out, size_t initial_size) return 0; } -int git_odb_backend_one_pack(git_odb_backend **backend_out, const char *idx) +#ifdef GIT_EXPERIMENTAL_SHA256 +int git_odb_backend_one_pack( + git_odb_backend **backend_out, + const char *idx, + const git_odb_backend_pack_options *opts) +#else +int git_odb_backend_one_pack( + git_odb_backend **backend_out, + const char *idx) +#endif { struct pack_backend *backend = NULL; struct git_pack_file *packfile = NULL; - if (pack_backend__alloc(&backend, 1) < 0) +#ifndef GIT_EXPERIMENTAL_SHA256 + git_odb_backend_pack_options *opts = NULL; +#endif + + git_oid_t oid_type = opts ? opts->oid_type : 0; + + if (pack_backend__alloc(&backend, 1, opts) < 0) return -1; - if (git_mwindow_get_pack(&packfile, idx) < 0 || - git_vector_insert(&backend->packs, packfile) < 0) - { + if (git_mwindow_get_pack(&packfile, idx, oid_type) < 0 || + git_vector_insert(&backend->packs, packfile) < 0) { pack_backend__free((git_odb_backend *)backend); return -1; } @@ -892,18 +922,30 @@ int git_odb_backend_one_pack(git_odb_backend **backend_out, const char *idx) return 0; } -int git_odb_backend_pack(git_odb_backend **backend_out, const char *objects_dir) +#ifdef GIT_EXPERIMENTAL_SHA256 +int git_odb_backend_pack( + git_odb_backend **backend_out, + const char *objects_dir, + const git_odb_backend_pack_options *opts) +#else +int git_odb_backend_pack( + git_odb_backend **backend_out, + const char *objects_dir) +#endif { int error = 0; struct pack_backend *backend = NULL; git_str path = GIT_STR_INIT; - if (pack_backend__alloc(&backend, 8) < 0) +#ifndef GIT_EXPERIMENTAL_SHA256 + git_odb_backend_pack_options *opts = NULL; +#endif + + if (pack_backend__alloc(&backend, 8, opts) < 0) return -1; if (!(error = git_str_joinpath(&path, objects_dir, "pack")) && - git_fs_path_isdir(git_str_cstr(&path))) - { + git_fs_path_isdir(git_str_cstr(&path))) { backend->pack_folder = git_str_detach(&path); error = pack_backend__refresh((git_odb_backend *)backend); } |