From 63e05f90562cc8db5c450dbceeab6677b6e5351f Mon Sep 17 00:00:00 2001 From: Ævar Arnfjörð Bjarmason Date: Sat, 5 Feb 2022 00:48:24 +0100 Subject: object-file API: return "void", not "int" from hash_object_file() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The hash_object_file() function added in abdc3fc8421 (Add hash_sha1_file(), 2006-10-14) did not have a meaningful return value, and it never has. One was seemingly added to avoid adding braces to the "ret = " assignments being modified here. Let's instead assign "0" to the "ret" variables at the beginning of the relevant functions, and have them return "void". Signed-off-by: Ævar Arnfjörð Bjarmason Signed-off-by: Junio C Hamano --- object-store.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'object-store.h') diff --git a/object-store.h b/object-store.h index 6f89482df0..44f6868cc9 100644 --- a/object-store.h +++ b/object-store.h @@ -245,9 +245,9 @@ static inline void *repo_read_object_file(struct repository *r, /* Read and unpack an object file into memory, write memory to an object file */ int oid_object_info(struct repository *r, const struct object_id *, unsigned long *); -int hash_object_file(const struct git_hash_algo *algo, const void *buf, - unsigned long len, const char *type, - struct object_id *oid); +void hash_object_file(const struct git_hash_algo *algo, const void *buf, + unsigned long len, const char *type, + struct object_id *oid); int write_object_file_flags(const void *buf, unsigned long len, const char *type, struct object_id *oid, -- cgit v1.3 From b04cdea46cf5ae60066fa6dd12d5449bf3ef283f Mon Sep 17 00:00:00 2001 From: Ævar Arnfjörð Bjarmason Date: Sat, 5 Feb 2022 00:48:25 +0100 Subject: object-file API: add a format_object_header() function MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add a convenience function to wrap the xsnprintf() command that generates loose object headers. This code was copy/pasted in various parts of the codebase, let's define it in one place and re-use it from there. All except one caller of it had a valid "enum object_type" for us, it's only write_object_file_prepare() which might need to deal with "git hash-object --literally" and a potential garbage type. Let's have the primary API use an "enum object_type", and define a *_literally() function that can take an arbitrary "const char *" for the type. See [1] for the discussion that prompted this patch, i.e. new code in object-file.c that wanted to copy/paste the xsnprintf() invocation. In the case of fast-import.c the callers unfortunately need to cast back & forth between "unsigned char *" and "char *", since format_object_header() ad encode_in_pack_object_header() take different signedness. 1. https://lore.kernel.org/git/211213.86bl1l9bfz.gmgdl@evledraar.gmail.com/ Signed-off-by: Ævar Arnfjörð Bjarmason Signed-off-by: Jiang Xin Signed-off-by: Junio C Hamano --- builtin/fast-import.c | 6 +++--- builtin/index-pack.c | 3 +-- bulk-checkin.c | 4 ++-- http-push.c | 2 +- object-file.c | 23 ++++++++++++++++++++--- object-store.h | 8 ++++++++ 6 files changed, 35 insertions(+), 11 deletions(-) (limited to 'object-store.h') diff --git a/builtin/fast-import.c b/builtin/fast-import.c index 2b2e28bad7..123df7d9a5 100644 --- a/builtin/fast-import.c +++ b/builtin/fast-import.c @@ -937,8 +937,8 @@ static int store_object( git_hash_ctx c; git_zstream s; - hdrlen = xsnprintf((char *)hdr, sizeof(hdr), "%s %lu", - type_name(type), (unsigned long)dat->len) + 1; + hdrlen = format_object_header((char *)hdr, sizeof(hdr), type, + dat->len); the_hash_algo->init_fn(&c); the_hash_algo->update_fn(&c, hdr, hdrlen); the_hash_algo->update_fn(&c, dat->buf, dat->len); @@ -1091,7 +1091,7 @@ static void stream_blob(uintmax_t len, struct object_id *oidout, uintmax_t mark) hashfile_checkpoint(pack_file, &checkpoint); offset = checkpoint.offset; - hdrlen = xsnprintf((char *)out_buf, out_sz, "blob %" PRIuMAX, len) + 1; + hdrlen = format_object_header((char *)out_buf, out_sz, OBJ_BLOB, len); the_hash_algo->init_fn(&c); the_hash_algo->update_fn(&c, out_buf, hdrlen); diff --git a/builtin/index-pack.c b/builtin/index-pack.c index 3c2e6aee3c..01574378ce 100644 --- a/builtin/index-pack.c +++ b/builtin/index-pack.c @@ -449,8 +449,7 @@ static void *unpack_entry_data(off_t offset, unsigned long size, int hdrlen; if (!is_delta_type(type)) { - hdrlen = xsnprintf(hdr, sizeof(hdr), "%s %"PRIuMAX, - type_name(type),(uintmax_t)size) + 1; + hdrlen = format_object_header(hdr, sizeof(hdr), type, size); the_hash_algo->init_fn(&c); the_hash_algo->update_fn(&c, hdr, hdrlen); } else diff --git a/bulk-checkin.c b/bulk-checkin.c index 8785b2ac80..85b3ebaf97 100644 --- a/bulk-checkin.c +++ b/bulk-checkin.c @@ -220,8 +220,8 @@ static int deflate_to_pack(struct bulk_checkin_state *state, if (seekback == (off_t) -1) return error("cannot find the current offset"); - header_len = xsnprintf((char *)obuf, sizeof(obuf), "%s %" PRIuMAX, - type_name(type), (uintmax_t)size) + 1; + header_len = format_object_header((char *)obuf, sizeof(obuf), + type, size); the_hash_algo->init_fn(&ctx); the_hash_algo->update_fn(&ctx, obuf, header_len); diff --git a/http-push.c b/http-push.c index 3309aaf004..f0c044dcf7 100644 --- a/http-push.c +++ b/http-push.c @@ -363,7 +363,7 @@ static void start_put(struct transfer_request *request) git_zstream stream; unpacked = read_object_file(&request->obj->oid, &type, &len); - hdrlen = xsnprintf(hdr, sizeof(hdr), "%s %"PRIuMAX , type_name(type), (uintmax_t)len) + 1; + hdrlen = format_object_header(hdr, sizeof(hdr), type, len); /* Set it up */ git_deflate_init(&stream, zlib_compression_level); diff --git a/object-file.c b/object-file.c index eeb6814780..3fcd46cf9e 100644 --- a/object-file.c +++ b/object-file.c @@ -1049,6 +1049,23 @@ void *xmmap(void *start, size_t length, return ret; } +static int format_object_header_literally(char *str, size_t size, + const char *type, size_t objsize) +{ + return xsnprintf(str, size, "%s %"PRIuMAX, type, (uintmax_t)objsize) + 1; +} + +int format_object_header(char *str, size_t size, enum object_type type, + size_t objsize) +{ + const char *name = type_name(type); + + if (!name) + BUG("could not get a type name for 'enum object_type' value %d", type); + + return format_object_header_literally(str, size, name, objsize); +} + /* * With an in-core object data in "map", rehash it to make sure the * object name actually matches "oid" to detect object corruption. @@ -1077,7 +1094,7 @@ int check_object_signature(struct repository *r, const struct object_id *oid, return -1; /* Generate the header */ - hdrlen = xsnprintf(hdr, sizeof(hdr), "%s %"PRIuMAX , type_name(obj_type), (uintmax_t)size) + 1; + hdrlen = format_object_header(hdr, sizeof(hdr), obj_type, size); /* Sha1.. */ r->hash_algo->init_fn(&c); @@ -1777,7 +1794,7 @@ static void write_object_file_prepare(const struct git_hash_algo *algo, git_hash_ctx c; /* Generate the header */ - *hdrlen = xsnprintf(hdr, *hdrlen, "%s %"PRIuMAX , type, (uintmax_t)len)+1; + *hdrlen = format_object_header_literally(hdr, *hdrlen, type, len); /* Sha1.. */ algo->init_fn(&c); @@ -2051,7 +2068,7 @@ int force_object_loose(const struct object_id *oid, time_t mtime) buf = read_object(the_repository, oid, &type, &len); if (!buf) return error(_("cannot read object for %s"), oid_to_hex(oid)); - hdrlen = xsnprintf(hdr, sizeof(hdr), "%s %"PRIuMAX , type_name(type), (uintmax_t)len) + 1; + hdrlen = format_object_header(hdr, sizeof(hdr), type, len); ret = write_loose_object(oid, hdr, hdrlen, buf, len, mtime, 0); free(buf); diff --git a/object-store.h b/object-store.h index 44f6868cc9..8b4413d0ce 100644 --- a/object-store.h +++ b/object-store.h @@ -331,6 +331,14 @@ int repo_has_object_file_with_flags(struct repository *r, */ int has_loose_object_nonlocal(const struct object_id *); +/** + * format_object_header() is a thin wrapper around s xsnprintf() that + * writes the initial " " part of the loose object + * header. It returns the size that snprintf() returns + 1. + */ +int format_object_header(char *str, size_t size, enum object_type type, + size_t objsize); + void assert_oid_type(const struct object_id *oid, enum object_type expect); /* -- cgit v1.3 From c80d226a046170b1c8dd82ef72a27373ddd5880e Mon Sep 17 00:00:00 2001 From: Ævar Arnfjörð Bjarmason Date: Sat, 5 Feb 2022 00:48:26 +0100 Subject: object-file API: have write_object_file() take "enum object_type" MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Change the write_object_file() function to take an "enum object_type" instead of a "const char *type". Its callers either passed {commit,tree,blob,tag}_type and can pass the corresponding OBJ_* type instead, or were hardcoding strings like "blob". This avoids the back & forth fragility where the callers of write_object_file() would have the enum type, and convert it themselves via type_name(). We do have to now do that conversion ourselves before calling write_object_file_prepare(), but those codepaths will be similarly adjusted in subsequent commits. Signed-off-by: Ævar Arnfjörð Bjarmason Signed-off-by: Junio C Hamano --- apply.c | 8 ++++---- builtin/checkout.c | 2 +- builtin/mktag.c | 2 +- builtin/mktree.c | 2 +- builtin/notes.c | 2 +- builtin/receive-pack.c | 2 +- builtin/replace.c | 2 +- builtin/tag.c | 2 +- builtin/unpack-objects.c | 6 +++--- cache-tree.c | 2 +- commit.c | 2 +- match-trees.c | 2 +- merge-ort.c | 4 ++-- merge-recursive.c | 2 +- notes-cache.c | 2 +- notes.c | 8 ++++---- object-file.c | 10 +++++----- object-store.h | 4 ++-- read-cache.c | 2 +- 19 files changed, 33 insertions(+), 33 deletions(-) (limited to 'object-store.h') diff --git a/apply.c b/apply.c index 7ffadc3b17..e82a7c30f0 100644 --- a/apply.c +++ b/apply.c @@ -3589,7 +3589,7 @@ static int try_threeway(struct apply_state *state, /* Preimage the patch was prepared for */ if (patch->is_new) - write_object_file("", 0, blob_type, &pre_oid); + write_object_file("", 0, OBJ_BLOB, &pre_oid); else if (get_oid(patch->old_oid_prefix, &pre_oid) || read_blob_object(&buf, &pre_oid, patch->old_mode)) return error(_("repository lacks the necessary blob to perform 3-way merge.")); @@ -3605,7 +3605,7 @@ static int try_threeway(struct apply_state *state, return -1; } /* post_oid is theirs */ - write_object_file(tmp_image.buf, tmp_image.len, blob_type, &post_oid); + write_object_file(tmp_image.buf, tmp_image.len, OBJ_BLOB, &post_oid); clear_image(&tmp_image); /* our_oid is ours */ @@ -3618,7 +3618,7 @@ static int try_threeway(struct apply_state *state, return error(_("cannot read the current contents of '%s'"), patch->old_name); } - write_object_file(tmp_image.buf, tmp_image.len, blob_type, &our_oid); + write_object_file(tmp_image.buf, tmp_image.len, OBJ_BLOB, &our_oid); clear_image(&tmp_image); /* in-core three-way merge between post and our using pre as base */ @@ -4346,7 +4346,7 @@ static int add_index_file(struct apply_state *state, } fill_stat_cache_info(state->repo->index, ce, &st); } - if (write_object_file(buf, size, blob_type, &ce->oid) < 0) { + if (write_object_file(buf, size, OBJ_BLOB, &ce->oid) < 0) { discard_cache_entry(ce); return error(_("unable to create backing store " "for newly created file %s"), path); diff --git a/builtin/checkout.c b/builtin/checkout.c index cc804ba8e1..24cc235939 100644 --- a/builtin/checkout.c +++ b/builtin/checkout.c @@ -298,7 +298,7 @@ static int checkout_merged(int pos, const struct checkout *state, * (it also writes the merge result to the object database even * when it may contain conflicts). */ - if (write_object_file(result_buf.ptr, result_buf.size, blob_type, &oid)) + if (write_object_file(result_buf.ptr, result_buf.size, OBJ_BLOB, &oid)) die(_("Unable to add merge result for '%s'"), path); free(result_buf.ptr); ce = make_transient_cache_entry(mode, &oid, path, 2, ce_mem_pool); diff --git a/builtin/mktag.c b/builtin/mktag.c index 3b2dbbb37e..96a3686af5 100644 --- a/builtin/mktag.c +++ b/builtin/mktag.c @@ -100,7 +100,7 @@ int cmd_mktag(int argc, const char **argv, const char *prefix) if (verify_object_in_tag(&tagged_oid, &tagged_type)) die(_("tag on stdin did not refer to a valid object")); - if (write_object_file(buf.buf, buf.len, tag_type, &result) < 0) + if (write_object_file(buf.buf, buf.len, OBJ_TAG, &result) < 0) die(_("unable to write tag file")); strbuf_release(&buf); diff --git a/builtin/mktree.c b/builtin/mktree.c index ae78ca1c02..a1213aaa96 100644 --- a/builtin/mktree.c +++ b/builtin/mktree.c @@ -58,7 +58,7 @@ static void write_tree(struct object_id *oid) strbuf_add(&buf, ent->oid.hash, the_hash_algo->rawsz); } - write_object_file(buf.buf, buf.len, tree_type, oid); + write_object_file(buf.buf, buf.len, OBJ_TREE, oid); strbuf_release(&buf); } diff --git a/builtin/notes.c b/builtin/notes.c index 05d60483e8..4cc84dfa76 100644 --- a/builtin/notes.c +++ b/builtin/notes.c @@ -199,7 +199,7 @@ static void prepare_note_data(const struct object_id *object, struct note_data * static void write_note_data(struct note_data *d, struct object_id *oid) { - if (write_object_file(d->buf.buf, d->buf.len, blob_type, oid)) { + if (write_object_file(d->buf.buf, d->buf.len, OBJ_BLOB, oid)) { int status = die_message(_("unable to write note object")); if (d->edit_path) diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c index 9f4a0b816c..231d576927 100644 --- a/builtin/receive-pack.c +++ b/builtin/receive-pack.c @@ -762,7 +762,7 @@ static void prepare_push_cert_sha1(struct child_process *proc) int bogs /* beginning_of_gpg_sig */; already_done = 1; - if (write_object_file(push_cert.buf, push_cert.len, "blob", + if (write_object_file(push_cert.buf, push_cert.len, OBJ_BLOB, &push_cert_oid)) oidclr(&push_cert_oid); diff --git a/builtin/replace.c b/builtin/replace.c index 6ff1734d58..995ca68330 100644 --- a/builtin/replace.c +++ b/builtin/replace.c @@ -474,7 +474,7 @@ static int create_graft(int argc, const char **argv, int force, int gentle) return -1; } - if (write_object_file(buf.buf, buf.len, commit_type, &new_oid)) { + if (write_object_file(buf.buf, buf.len, OBJ_COMMIT, &new_oid)) { strbuf_release(&buf); return error(_("could not write replacement commit for: '%s'"), old_ref); diff --git a/builtin/tag.c b/builtin/tag.c index 134b3f1edf..31e6b155c0 100644 --- a/builtin/tag.c +++ b/builtin/tag.c @@ -238,7 +238,7 @@ static int build_tag_object(struct strbuf *buf, int sign, struct object_id *resu { if (sign && do_sign(buf) < 0) return error(_("unable to sign the tag")); - if (write_object_file(buf->buf, buf->len, tag_type, result) < 0) + if (write_object_file(buf->buf, buf->len, OBJ_TAG, result) < 0) return error(_("unable to write tag file")); return 0; } diff --git a/builtin/unpack-objects.c b/builtin/unpack-objects.c index 4a9466295b..808041551f 100644 --- a/builtin/unpack-objects.c +++ b/builtin/unpack-objects.c @@ -177,7 +177,7 @@ static void write_cached_object(struct object *obj, struct obj_buffer *obj_buf) struct object_id oid; if (write_object_file(obj_buf->buffer, obj_buf->size, - type_name(obj->type), &oid) < 0) + obj->type, &oid) < 0) die("failed to write object %s", oid_to_hex(&obj->oid)); obj->flags |= FLAG_WRITTEN; } @@ -243,7 +243,7 @@ static void write_object(unsigned nr, enum object_type type, void *buf, unsigned long size) { if (!strict) { - if (write_object_file(buf, size, type_name(type), + if (write_object_file(buf, size, type, &obj_list[nr].oid) < 0) die("failed to write object"); added_object(nr, type, buf, size); @@ -251,7 +251,7 @@ static void write_object(unsigned nr, enum object_type type, obj_list[nr].obj = NULL; } else if (type == OBJ_BLOB) { struct blob *blob; - if (write_object_file(buf, size, type_name(type), + if (write_object_file(buf, size, type, &obj_list[nr].oid) < 0) die("failed to write object"); added_object(nr, type, buf, size); diff --git a/cache-tree.c b/cache-tree.c index 65ca993361..fdbbd191d2 100644 --- a/cache-tree.c +++ b/cache-tree.c @@ -440,7 +440,7 @@ static int update_one(struct cache_tree *it, } else if (dryrun) { hash_object_file(the_hash_algo, buffer.buf, buffer.len, tree_type, &it->oid); - } else if (write_object_file_flags(buffer.buf, buffer.len, tree_type, + } else if (write_object_file_flags(buffer.buf, buffer.len, OBJ_TREE, &it->oid, flags & WRITE_TREE_SILENT ? HASH_SILENT : 0)) { strbuf_release(&buffer); diff --git a/commit.c b/commit.c index a348f085b2..6cc0ba9c11 100644 --- a/commit.c +++ b/commit.c @@ -1567,7 +1567,7 @@ int commit_tree_extended(const char *msg, size_t msg_len, goto out; } - result = write_object_file(buffer.buf, buffer.len, commit_type, ret); + result = write_object_file(buffer.buf, buffer.len, OBJ_COMMIT, ret); out: strbuf_release(&buffer); return result; diff --git a/match-trees.c b/match-trees.c index df413989fa..49398e599f 100644 --- a/match-trees.c +++ b/match-trees.c @@ -235,7 +235,7 @@ static int splice_tree(const struct object_id *oid1, const char *prefix, rewrite_with = oid2; } hashcpy(rewrite_here, rewrite_with->hash); - status = write_object_file(buf, sz, tree_type, result); + status = write_object_file(buf, sz, OBJ_TREE, result); free(buf); return status; } diff --git a/merge-ort.c b/merge-ort.c index c319797021..d4ba2955f1 100644 --- a/merge-ort.c +++ b/merge-ort.c @@ -1888,7 +1888,7 @@ static int handle_content_merge(struct merge_options *opt, if (!ret && write_object_file(result_buf.ptr, result_buf.size, - blob_type, &result->oid)) + OBJ_BLOB, &result->oid)) ret = err(opt, _("Unable to add %s to database"), path); @@ -3343,7 +3343,7 @@ static void write_tree(struct object_id *result_oid, } /* Write this object file out, and record in result_oid */ - write_object_file(buf.buf, buf.len, tree_type, result_oid); + write_object_file(buf.buf, buf.len, OBJ_TREE, result_oid); strbuf_release(&buf); } diff --git a/merge-recursive.c b/merge-recursive.c index d9457797db..e0cbbf2d02 100644 --- a/merge-recursive.c +++ b/merge-recursive.c @@ -1373,7 +1373,7 @@ static int merge_mode_and_contents(struct merge_options *opt, if (!ret && write_object_file(result_buf.ptr, result_buf.size, - blob_type, &result->blob.oid)) + OBJ_BLOB, &result->blob.oid)) ret = err(opt, _("Unable to add %s to database"), a->path); diff --git a/notes-cache.c b/notes-cache.c index 2473314d68..9dfd251a81 100644 --- a/notes-cache.c +++ b/notes-cache.c @@ -92,7 +92,7 @@ int notes_cache_put(struct notes_cache *c, struct object_id *key_oid, { struct object_id value_oid; - if (write_object_file(data, size, "blob", &value_oid) < 0) + if (write_object_file(data, size, OBJ_BLOB, &value_oid) < 0) return -1; return add_note(&c->tree, key_oid, &value_oid, NULL); } diff --git a/notes.c b/notes.c index f87dac4068..7452e71cc8 100644 --- a/notes.c +++ b/notes.c @@ -675,7 +675,7 @@ static int tree_write_stack_finish_subtree(struct tree_write_stack *tws) ret = tree_write_stack_finish_subtree(n); if (ret) return ret; - ret = write_object_file(n->buf.buf, n->buf.len, tree_type, &s); + ret = write_object_file(n->buf.buf, n->buf.len, OBJ_TREE, &s); if (ret) return ret; strbuf_release(&n->buf); @@ -836,7 +836,7 @@ int combine_notes_concatenate(struct object_id *cur_oid, free(new_msg); /* create a new blob object from buf */ - ret = write_object_file(buf, buf_len, blob_type, cur_oid); + ret = write_object_file(buf, buf_len, OBJ_BLOB, cur_oid); free(buf); return ret; } @@ -916,7 +916,7 @@ int combine_notes_cat_sort_uniq(struct object_id *cur_oid, string_list_join_lines_helper, &buf)) goto out; - ret = write_object_file(buf.buf, buf.len, blob_type, cur_oid); + ret = write_object_file(buf.buf, buf.len, OBJ_BLOB, cur_oid); out: strbuf_release(&buf); @@ -1192,7 +1192,7 @@ int write_notes_tree(struct notes_tree *t, struct object_id *result) ret = for_each_note(t, flags, write_each_note, &cb_data) || write_each_non_note_until(NULL, &cb_data) || tree_write_stack_finish_subtree(&root) || - write_object_file(root.buf.buf, root.buf.len, tree_type, result); + write_object_file(root.buf.buf, root.buf.len, OBJ_TREE, result); strbuf_release(&root.buf); return ret; } diff --git a/object-file.c b/object-file.c index 3fcd46cf9e..59eb793e0a 100644 --- a/object-file.c +++ b/object-file.c @@ -2014,7 +2014,7 @@ static int freshen_packed_object(const struct object_id *oid) } int write_object_file_flags(const void *buf, unsigned long len, - const char *type, struct object_id *oid, + enum object_type type, struct object_id *oid, unsigned flags) { char hdr[MAX_HEADER_LEN]; @@ -2023,7 +2023,7 @@ int write_object_file_flags(const void *buf, unsigned long len, /* Normally if we have it in the pack then we do not bother writing * it out into .git/objects/??/?{38} file. */ - write_object_file_prepare(the_hash_algo, buf, len, type, oid, hdr, + write_object_file_prepare(the_hash_algo, buf, len, type_name(type), oid, hdr, &hdrlen); if (freshen_packed_object(oid) || freshen_loose_object(oid)) return 0; @@ -2162,7 +2162,7 @@ static int index_mem(struct index_state *istate, } if (write_object) - ret = write_object_file(buf, size, type_name(type), oid); + ret = write_object_file(buf, size, type, oid); else hash_object_file(the_hash_algo, buf, size, type_name(type), oid); @@ -2189,7 +2189,7 @@ static int index_stream_convert_blob(struct index_state *istate, get_conv_flags(flags)); if (write_object) - ret = write_object_file(sbuf.buf, sbuf.len, type_name(OBJ_BLOB), + ret = write_object_file(sbuf.buf, sbuf.len, OBJ_BLOB, oid); else hash_object_file(the_hash_algo, sbuf.buf, sbuf.len, @@ -2313,7 +2313,7 @@ int index_path(struct index_state *istate, struct object_id *oid, if (!(flags & HASH_WRITE_OBJECT)) hash_object_file(the_hash_algo, sb.buf, sb.len, blob_type, oid); - else if (write_object_file(sb.buf, sb.len, blob_type, oid)) + else if (write_object_file(sb.buf, sb.len, OBJ_BLOB, oid)) rc = error(_("%s: failed to insert into database"), path); strbuf_release(&sb); break; diff --git a/object-store.h b/object-store.h index 8b4413d0ce..eab1e2a967 100644 --- a/object-store.h +++ b/object-store.h @@ -250,10 +250,10 @@ void hash_object_file(const struct git_hash_algo *algo, const void *buf, struct object_id *oid); int write_object_file_flags(const void *buf, unsigned long len, - const char *type, struct object_id *oid, + enum object_type type, struct object_id *oid, unsigned flags); static inline int write_object_file(const void *buf, unsigned long len, - const char *type, struct object_id *oid) + enum object_type type, struct object_id *oid) { return write_object_file_flags(buf, len, type, oid, 0); } diff --git a/read-cache.c b/read-cache.c index cbe73f14e5..b8ae30a0e7 100644 --- a/read-cache.c +++ b/read-cache.c @@ -735,7 +735,7 @@ static struct cache_entry *create_alias_ce(struct index_state *istate, void set_object_name_for_intent_to_add_entry(struct cache_entry *ce) { struct object_id oid; - if (write_object_file("", 0, blob_type, &oid)) + if (write_object_file("", 0, OBJ_BLOB, &oid)) die(_("cannot create an empty blob in the object database")); oidcpy(&ce->oid, &oid); } -- cgit v1.3 From 0ff7b4f976b78ab38313356b3e0582e5fa9a3bcc Mon Sep 17 00:00:00 2001 From: Ævar Arnfjörð Bjarmason Date: Sat, 5 Feb 2022 00:48:31 +0100 Subject: object API: rename hash_object_file_literally() to write_*() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Before 0c3db67cc81 (hash-object --literally: fix buffer overrun with extra-long object type, 2015-05-04) the hash-object code being changed here called write_sha1_file() to both hash and write a loose object. Before that we'd use hash_sha1_file() to if "-w" wasn't provided, and otherwise call write_sha1_file(). Now we'll always call the same function for both writing. Let's rename it from hash_*_literally() to write_*_literally(). Even though the write_*() might not actually write if HASH_WRITE_OBJECT isn't in "flags", having it be more similar to write_object_file_flags() than hash_object_file(), but carrying a name that would suggest that it's a variant of the latter is confusing. Signed-off-by: Ævar Arnfjörð Bjarmason Signed-off-by: Junio C Hamano --- builtin/hash-object.c | 2 +- object-file.c | 6 +++--- object-store.h | 6 +++--- 3 files changed, 7 insertions(+), 7 deletions(-) (limited to 'object-store.h') diff --git a/builtin/hash-object.c b/builtin/hash-object.c index c7b3ad74c6..f4cbd9c4ae 100644 --- a/builtin/hash-object.c +++ b/builtin/hash-object.c @@ -25,7 +25,7 @@ static int hash_literally(struct object_id *oid, int fd, const char *type, unsig if (strbuf_read(&buf, fd, 4096) < 0) ret = -1; else - ret = hash_object_file_literally(buf.buf, buf.len, type, oid, + ret = write_object_file_literally(buf.buf, buf.len, type, oid, flags); strbuf_release(&buf); return ret; diff --git a/object-file.c b/object-file.c index f985492274..9e5b849693 100644 --- a/object-file.c +++ b/object-file.c @@ -2027,9 +2027,9 @@ int write_object_file_flags(const void *buf, unsigned long len, return write_loose_object(oid, hdr, hdrlen, buf, len, 0, flags); } -int hash_object_file_literally(const void *buf, unsigned long len, - const char *type, struct object_id *oid, - unsigned flags) +int write_object_file_literally(const void *buf, unsigned long len, + const char *type, struct object_id *oid, + unsigned flags) { char *header; int hdrlen, status = 0; diff --git a/object-store.h b/object-store.h index eab1e2a967..29169d117f 100644 --- a/object-store.h +++ b/object-store.h @@ -258,9 +258,9 @@ static inline int write_object_file(const void *buf, unsigned long len, return write_object_file_flags(buf, len, type, oid, 0); } -int hash_object_file_literally(const void *buf, unsigned long len, - const char *type, struct object_id *oid, - unsigned flags); +int write_object_file_literally(const void *buf, unsigned long len, + const char *type, struct object_id *oid, + unsigned flags); /* * Add an object file to the in-memory object store, without writing it -- cgit v1.3 From 44439c1c5827480f68b37c3cc38f257eaeb3ed2c Mon Sep 17 00:00:00 2001 From: Ævar Arnfjörð Bjarmason Date: Sat, 5 Feb 2022 00:48:32 +0100 Subject: object-file API: have hash_object_file() take "enum object_type" MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Change the hash_object_file() function to take an "enum object_type". Since a preceding commit all of its callers are passing either "{commit,tree,blob,tag}_type", or the result of a call to type_name(), the parse_object() caller that would pass NULL is now using stream_object_signature(). Signed-off-by: Ævar Arnfjörð Bjarmason Signed-off-by: Junio C Hamano --- apply.c | 4 ++-- builtin/fast-export.c | 2 +- builtin/index-pack.c | 4 ++-- builtin/mktag.c | 2 +- builtin/replace.c | 2 +- builtin/unpack-objects.c | 2 +- cache-tree.c | 6 +++--- cache.h | 3 ++- convert.c | 2 +- diffcore-rename.c | 2 +- dir.c | 2 +- log-tree.c | 2 +- object-file.c | 35 +++++++++++++++++++++-------------- object-store.h | 2 +- object.c | 3 +-- pack-check.c | 2 +- 16 files changed, 41 insertions(+), 34 deletions(-) (limited to 'object-store.h') diff --git a/apply.c b/apply.c index e82a7c30f0..8513755e25 100644 --- a/apply.c +++ b/apply.c @@ -3157,7 +3157,7 @@ static int apply_binary(struct apply_state *state, * See if the old one matches what the patch * applies to. */ - hash_object_file(the_hash_algo, img->buf, img->len, blob_type, + hash_object_file(the_hash_algo, img->buf, img->len, OBJ_BLOB, &oid); if (strcmp(oid_to_hex(&oid), patch->old_oid_prefix)) return error(_("the patch applies to '%s' (%s), " @@ -3203,7 +3203,7 @@ static int apply_binary(struct apply_state *state, name); /* verify that the result matches */ - hash_object_file(the_hash_algo, img->buf, img->len, blob_type, + hash_object_file(the_hash_algo, img->buf, img->len, OBJ_BLOB, &oid); if (strcmp(oid_to_hex(&oid), patch->new_oid_prefix)) return error(_("binary patch to '%s' creates incorrect result (expecting %s, got %s)"), diff --git a/builtin/fast-export.c b/builtin/fast-export.c index 319859db30..52aebeb521 100644 --- a/builtin/fast-export.c +++ b/builtin/fast-export.c @@ -300,7 +300,7 @@ static void export_blob(const struct object_id *oid) if (!buf) die("could not read blob %s", oid_to_hex(oid)); if (check_object_signature(the_repository, oid, buf, size, - type_name(type)) < 0) + type) < 0) die("oid mismatch in blob %s", oid_to_hex(oid)); object = parse_object_buffer(the_repository, oid, type, size, buf, &eaten); diff --git a/builtin/index-pack.c b/builtin/index-pack.c index e1927205a7..d0c3e0966b 100644 --- a/builtin/index-pack.c +++ b/builtin/index-pack.c @@ -970,7 +970,7 @@ static struct base_data *resolve_delta(struct object_entry *delta_obj, if (!result_data) bad_object(delta_obj->idx.offset, _("failed to apply delta")); hash_object_file(the_hash_algo, result_data, result_size, - type_name(delta_obj->real_type), &delta_obj->idx.oid); + delta_obj->real_type, &delta_obj->idx.oid); sha1_object(result_data, NULL, result_size, delta_obj->real_type, &delta_obj->idx.oid); @@ -1413,7 +1413,7 @@ static void fix_unresolved_deltas(struct hashfile *f) continue; if (check_object_signature(the_repository, &d->oid, data, size, - type_name(type)) < 0) + type) < 0) die(_("local object %s is corrupt"), oid_to_hex(&d->oid)); /* diff --git a/builtin/mktag.c b/builtin/mktag.c index 4d28eceeba..14b9fe3bc0 100644 --- a/builtin/mktag.c +++ b/builtin/mktag.c @@ -62,7 +62,7 @@ static int verify_object_in_tag(struct object_id *tagged_oid, int *tagged_type) repl = lookup_replace_object(the_repository, tagged_oid); ret = check_object_signature(the_repository, repl, buffer, size, - type_name(*tagged_type)); + *tagged_type); free(buffer); return ret; diff --git a/builtin/replace.c b/builtin/replace.c index 995ca68330..53a3b24657 100644 --- a/builtin/replace.c +++ b/builtin/replace.c @@ -409,7 +409,7 @@ static int check_one_mergetag(struct commit *commit, int i; hash_object_file(the_hash_algo, extra->value, extra->len, - type_name(OBJ_TAG), &tag_oid); + OBJ_TAG, &tag_oid); tag = lookup_tag(the_repository, &tag_oid); if (!tag) return error(_("bad mergetag in commit '%s'"), ref); diff --git a/builtin/unpack-objects.c b/builtin/unpack-objects.c index 808041551f..dbeb0680a5 100644 --- a/builtin/unpack-objects.c +++ b/builtin/unpack-objects.c @@ -266,7 +266,7 @@ static void write_object(unsigned nr, enum object_type type, } else { struct object *obj; int eaten; - hash_object_file(the_hash_algo, buf, size, type_name(type), + hash_object_file(the_hash_algo, buf, size, type, &obj_list[nr].oid); added_object(nr, type, buf, size); obj = parse_object_buffer(the_repository, &obj_list[nr].oid, diff --git a/cache-tree.c b/cache-tree.c index fdbbd191d2..6752f69d51 100644 --- a/cache-tree.c +++ b/cache-tree.c @@ -432,14 +432,14 @@ static int update_one(struct cache_tree *it, if (repair) { struct object_id oid; hash_object_file(the_hash_algo, buffer.buf, buffer.len, - tree_type, &oid); + OBJ_TREE, &oid); if (has_object_file_with_flags(&oid, OBJECT_INFO_SKIP_FETCH_OBJECT)) oidcpy(&it->oid, &oid); else to_invalidate = 1; } else if (dryrun) { hash_object_file(the_hash_algo, buffer.buf, buffer.len, - tree_type, &it->oid); + OBJ_TREE, &it->oid); } else if (write_object_file_flags(buffer.buf, buffer.len, OBJ_TREE, &it->oid, flags & WRITE_TREE_SILENT ? HASH_SILENT : 0)) { @@ -948,7 +948,7 @@ static int verify_one(struct repository *r, strbuf_addf(&tree_buf, "%o %.*s%c", mode, entlen, name, '\0'); strbuf_add(&tree_buf, oid->hash, r->hash_algo->rawsz); } - hash_object_file(r->hash_algo, tree_buf.buf, tree_buf.len, tree_type, + hash_object_file(r->hash_algo, tree_buf.buf, tree_buf.len, OBJ_TREE, &new_oid); if (!oideq(&new_oid, &it->oid)) BUG("cache-tree for path %.*s does not match. " diff --git a/cache.h b/cache.h index c068f99c79..2027803c49 100644 --- a/cache.h +++ b/cache.h @@ -1327,7 +1327,8 @@ int parse_loose_header(const char *hdr, struct object_info *oi); * what we expected, but it might also indicate another error. */ int check_object_signature(struct repository *r, const struct object_id *oid, - void *buf, unsigned long size, const char *type); + void *map, unsigned long size, + enum object_type type); /** * A streaming version of check_object_signature(). diff --git a/convert.c b/convert.c index df7186bd81..d88072fe32 100644 --- a/convert.c +++ b/convert.c @@ -1159,7 +1159,7 @@ static int ident_to_worktree(const char *src, size_t len, /* are we "faking" in place editing ? */ if (src == buf->buf) to_free = strbuf_detach(buf, NULL); - hash_object_file(the_hash_algo, src, len, "blob", &oid); + hash_object_file(the_hash_algo, src, len, OBJ_BLOB, &oid); strbuf_grow(buf, len + cnt * (the_hash_algo->hexsz + 3)); for (;;) { diff --git a/diffcore-rename.c b/diffcore-rename.c index bebd4ed6a4..c0422d9e70 100644 --- a/diffcore-rename.c +++ b/diffcore-rename.c @@ -261,7 +261,7 @@ static unsigned int hash_filespec(struct repository *r, if (diff_populate_filespec(r, filespec, NULL)) return 0; hash_object_file(r->hash_algo, filespec->data, filespec->size, - "blob", &filespec->oid); + OBJ_BLOB, &filespec->oid); } return oidhash(&filespec->oid); } diff --git a/dir.c b/dir.c index d91295f2bc..5674e8a625 100644 --- a/dir.c +++ b/dir.c @@ -1113,7 +1113,7 @@ static int add_patterns(const char *fname, const char *base, int baselen, &istate->cache[pos]->oid); else hash_object_file(the_hash_algo, buf, size, - "blob", &oid_stat->oid); + OBJ_BLOB, &oid_stat->oid); fill_stat_data(&oid_stat->stat, &st); oid_stat->valid = 1; } diff --git a/log-tree.c b/log-tree.c index d3e7a40b64..27a5b0bd61 100644 --- a/log-tree.c +++ b/log-tree.c @@ -561,7 +561,7 @@ static int show_one_mergetag(struct commit *commit, struct strbuf signature = STRBUF_INIT; hash_object_file(the_hash_algo, extra->value, extra->len, - type_name(OBJ_TAG), &oid); + OBJ_TAG, &oid); tag = lookup_tag(the_repository, &oid); if (!tag) return -1; /* error message already given */ diff --git a/object-file.c b/object-file.c index 9e5b849693..b1cb78c441 100644 --- a/object-file.c +++ b/object-file.c @@ -1067,7 +1067,8 @@ int format_object_header(char *str, size_t size, enum object_type type, } int check_object_signature(struct repository *r, const struct object_id *oid, - void *buf, unsigned long size, const char *type) + void *buf, unsigned long size, + enum object_type type) { struct object_id real_oid; @@ -1676,7 +1677,7 @@ int pretend_object_file(void *buf, unsigned long len, enum object_type type, { struct cached_object *co; - hash_object_file(the_hash_algo, buf, len, type_name(type), oid); + hash_object_file(the_hash_algo, buf, len, type, oid); if (has_object_file_with_flags(oid, OBJECT_INFO_QUICK | OBJECT_INFO_SKIP_FETCH_OBJECT) || find_cached_object(oid)) return 0; @@ -1850,15 +1851,23 @@ static int write_buffer(int fd, const void *buf, size_t len) return 0; } -void hash_object_file(const struct git_hash_algo *algo, const void *buf, - unsigned long len, const char *type, - struct object_id *oid) +static void hash_object_file_literally(const struct git_hash_algo *algo, + const void *buf, unsigned long len, + const char *type, struct object_id *oid) { char hdr[MAX_HEADER_LEN]; int hdrlen = sizeof(hdr); + write_object_file_prepare(algo, buf, len, type, oid, hdr, &hdrlen); } +void hash_object_file(const struct git_hash_algo *algo, const void *buf, + unsigned long len, enum object_type type, + struct object_id *oid) +{ + hash_object_file_literally(algo, buf, len, type_name(type), oid); +} + /* Finalize a file on disk, and close it. */ static void close_loose_object(int fd) { @@ -2161,9 +2170,7 @@ static int index_mem(struct index_state *istate, if (write_object) ret = write_object_file(buf, size, type, oid); else - hash_object_file(the_hash_algo, buf, size, type_name(type), - oid); - + hash_object_file(the_hash_algo, buf, size, type, oid); if (re_allocated) free(buf); return ret; @@ -2189,8 +2196,8 @@ static int index_stream_convert_blob(struct index_state *istate, ret = write_object_file(sbuf.buf, sbuf.len, OBJ_BLOB, oid); else - hash_object_file(the_hash_algo, sbuf.buf, sbuf.len, - type_name(OBJ_BLOB), oid); + hash_object_file(the_hash_algo, sbuf.buf, sbuf.len, OBJ_BLOB, + oid); strbuf_release(&sbuf); return ret; } @@ -2309,7 +2316,7 @@ int index_path(struct index_state *istate, struct object_id *oid, return error_errno("readlink(\"%s\")", path); if (!(flags & HASH_WRITE_OBJECT)) hash_object_file(the_hash_algo, sb.buf, sb.len, - blob_type, oid); + OBJ_BLOB, oid); else if (write_object_file(sb.buf, sb.len, OBJ_BLOB, oid)) rc = error(_("%s: failed to insert into database"), path); strbuf_release(&sb); @@ -2614,9 +2621,9 @@ int read_loose_object(const char *path, git_inflate_end(&stream); goto out; } - hash_object_file(the_repository->hash_algo, - *contents, *size, oi->type_name->buf, - real_oid); + hash_object_file_literally(the_repository->hash_algo, + *contents, *size, + oi->type_name->buf, real_oid); if (!oideq(expected_oid, real_oid)) goto out; } diff --git a/object-store.h b/object-store.h index 29169d117f..bd2322ed8c 100644 --- a/object-store.h +++ b/object-store.h @@ -246,7 +246,7 @@ static inline void *repo_read_object_file(struct repository *r, int oid_object_info(struct repository *r, const struct object_id *, unsigned long *); void hash_object_file(const struct git_hash_algo *algo, const void *buf, - unsigned long len, const char *type, + unsigned long len, enum object_type type, struct object_id *oid); int write_object_file_flags(const void *buf, unsigned long len, diff --git a/object.c b/object.c index d07678ef6d..588b8156f1 100644 --- a/object.c +++ b/object.c @@ -289,8 +289,7 @@ struct object *parse_object(struct repository *r, const struct object_id *oid) buffer = repo_read_object_file(r, oid, &type, &size); if (buffer) { - if (check_object_signature(r, repl, buffer, size, - type_name(type)) < 0) { + if (check_object_signature(r, repl, buffer, size, type) < 0) { free(buffer); error(_("hash mismatch %s"), oid_to_hex(repl)); return NULL; diff --git a/pack-check.c b/pack-check.c index d8d8f91de6..bfb593ba72 100644 --- a/pack-check.c +++ b/pack-check.c @@ -143,7 +143,7 @@ static int verify_packfile(struct repository *r, oid_to_hex(&oid), p->pack_name, (uintmax_t)entries[i].offset); else if (data && check_object_signature(r, &oid, data, size, - type_name(type)) < 0) + type) < 0) err = error("packed %s from %s is corrupt", oid_to_hex(&oid), p->pack_name); else if (!data && stream_object_signature(r, &oid) < 0) -- cgit v1.3