From 3d3552e8fd709214634435ee188e6fb4930e7b39 Mon Sep 17 00:00:00 2001 From: Ramsay Jones Date: Thu, 18 Dec 2008 22:58:10 +0000 Subject: [PATCH] Implement git_odb__read_loose() Signed-off-by: Ramsay Jones Signed-off-by: Shawn O. Pearce --- Makefile | 2 +- src/fileops.h | 1 + src/odb.c | 316 ++++++++++++++++++- tests/t0000-read1.c | 720 ++++++++++++++++++++++++++++++++++++++++++++ tests/t0000-read2.c | 715 +++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 1752 insertions(+), 2 deletions(-) create mode 100644 tests/t0000-read1.c create mode 100644 tests/t0000-read2.c diff --git a/Makefile b/Makefile index 0703e6ccf..8c08cf624 100644 --- a/Makefile +++ b/Makefile @@ -78,7 +78,7 @@ $(TEST_EXE): tests/%.exe: tests/%.o tests/%_main.o $(CC) -o $@ \ $(patsubst %.exe,%_main.o,$@) \ $(patsubst %.exe,%.o,$@) \ - $(T_LIB) -L. -lgit2 + $(T_LIB) -L. -lgit2 -lz $(TEST_RUN): tests/%.run: tests/%.exe @t=trash-$( n) + return len+43; + + /* the object dir: eg $GIT_DIR/objects */ + strcpy(name, dir); + if (name[len-1] != '/') + name[len++] = '/'; + + /* loose object filename: aa/aaa... (41 bytes) */ + git_oid_pathfmt(&name[len], id); + name[len+41] = '\0'; + + return 0; +} + +static int is_zlib_compressed_data(unsigned char *data) +{ + unsigned int w; + + w = ((unsigned int)(data[0]) << 8) + data[1]; + return data[0] == 0x78 && !(w %31); +} + +static size_t get_binary_object_header(obj_hdr *hdr, gitfo_buf *obj) +{ + unsigned char c; + unsigned char *data = obj->data; + size_t shift, size, used = 0; + + if (obj->len == 0) + return 0; + + c = data[used++]; + hdr->type = (c >> 4) & 7; + + size = c & 15; + shift = 4; + while (c & 0x80) { + if (obj->len <= used) + return 0; + if (sizeof(size_t) * 8 <= shift) + return 0; + c = data[used++]; + size += (c & 0x7f) << shift; + shift += 7; + } + hdr->size = size; + + return used; +} + +static size_t get_object_header(obj_hdr *hdr, unsigned char *data) +{ + char c, typename[10]; + size_t size, used = 0; + + /* + * type name string followed by space. + */ + while ((c = data[used]) != ' ') { + typename[used++] = c; + if (used >= sizeof(typename)) + return 0; + } + typename[used] = 0; + if (used == 0) + return 0; + hdr->type = git_obj_string_to_type(typename); + used++; /* consume the space */ + + /* + * length follows immediately in decimal (without + * leading zeros). + */ + size = data[used++] - '0'; + if (size > 9) + return 0; + if (size) { + while ((c = data[used]) != '\0') { + size_t d = c - '0'; + if (d > 9) + break; + used++; + size = size * 10 + d; + } + } + hdr->size = size; + + /* + * the length must be followed by a zero byte + */ + if (data[used++] != '\0') + return 0; + + return used; +} + +static void init_stream(z_stream *s, void *out, size_t len) +{ + memset(s, 0, sizeof(*s)); + s->next_out = out; + s->avail_out = len; +} + +static void set_stream_input(z_stream *s, void *in, size_t len) +{ + s->next_in = in; + s->avail_in = len; +} + +static void set_stream_output(z_stream *s, void *out, size_t len) +{ + s->next_out = out; + s->avail_out = len; +} + +static int start_inflate(z_stream *s, gitfo_buf *obj, void *out, size_t len) +{ + init_stream(s, out, len); + set_stream_input(s, obj->data, obj->len); + inflateInit(s); + return inflate(s, 0); +} + +static int finish_inflate(z_stream *s) +{ + int status = Z_OK; + + while (status == Z_OK) + status = inflate(s, Z_FINISH); + + inflateEnd(s); + + if ((status != Z_STREAM_END) || (s->avail_in != 0)) + return GIT_ERROR; + + return GIT_SUCCESS; +} + +static void *inflate_tail(z_stream *s, void *hb, size_t used, obj_hdr *hdr) +{ + unsigned char *buf, *head = hb; + size_t tail; + + /* + * allocate a buffer to hold the inflated data and copy the + * initial sequence of inflated data from the tail of the + * head buffer, if any. + */ + if ((buf = malloc(hdr->size + 1)) == NULL) + return NULL; + tail = s->total_out - used; + if (used > 0 && tail > 0) { + if (tail > hdr->size) + tail = hdr->size; + memcpy(buf, head + used, tail); + } + used = tail; + + /* + * inflate the remainder of the object data, if any + */ + if (hdr->size >= used) { + set_stream_output(s, buf + used, hdr->size - used); + if (finish_inflate(s)) { + free(buf); + return NULL; + } + } + + return buf; +} + +static int inflate_buffer(void *in, size_t inlen, void *out, size_t outlen) +{ + z_stream zs; + int status = Z_OK; + + init_stream(&zs, out, outlen); + set_stream_input(&zs, in, inlen); + + inflateInit(&zs); + + while (status == Z_OK) + status = inflate(&zs, Z_FINISH); + + inflateEnd(&zs); + + if ((status != Z_STREAM_END) || (zs.total_out != outlen)) + return GIT_ERROR; + + if (zs.avail_in != 0) + return GIT_ERROR; + + return GIT_SUCCESS; +} + +/* + * At one point, there was a loose object format that was intended to + * mimic the format used in pack-files. This was to allow easy copying + * of loose object data into packs. This format is no longer used, but + * we must still read it. + */ +static int inflate_packlike_loose_disk_obj(git_obj *out, gitfo_buf *obj) +{ + unsigned char *in, *buf; + obj_hdr hdr; + size_t len, used; + + /* + * read the object header, which is an (uncompressed) + * binary encoding of the object type and size. + */ + if ((used = get_binary_object_header(&hdr, obj)) == 0) + return GIT_ERROR; + + if (!git_obj__loose_object_type(hdr.type)) + return GIT_ERROR; + + /* + * allocate a buffer and inflate the data into it + */ + buf = malloc(hdr.size+1); + in = ((unsigned char *)obj->data) + used; + len = obj->len - used; + if (inflate_buffer(in, len, buf, hdr.size)) { + free(buf); + return GIT_ERROR; + } + buf[hdr.size] = '\0'; + + out->data = buf; + out->len = hdr.size; + out->type = hdr.type; + + return GIT_SUCCESS; +} + +static int inflate_disk_obj(git_obj *out, gitfo_buf *obj) +{ + unsigned char head[64], *buf; + z_stream zs; + int z_status; + obj_hdr hdr; + size_t used; + + /* + * check for a pack-like loose object + */ + if (!is_zlib_compressed_data(obj->data)) + return inflate_packlike_loose_disk_obj(out, obj); + + /* + * inflate the initial part of the io buffer in order + * to parse the object header (type and size). + */ + if ((z_status = start_inflate(&zs, obj, head, sizeof(head))) < Z_OK) + return GIT_ERROR; + + if ((used = get_object_header(&hdr, head)) == 0) + return GIT_ERROR; + + if (!git_obj__loose_object_type(hdr.type)) + return GIT_ERROR; + + /* + * allocate a buffer and inflate the object data into it + * (including the initial sequence in the head buffer). + */ + if ((buf = inflate_tail(&zs, head, used, &hdr)) == NULL) + return GIT_ERROR; + buf[hdr.size] = '\0'; + + out->data = buf; + out->len = hdr.size; + out->type = hdr.type; + + return GIT_SUCCESS; +} + static int open_alternates(git_odb *db) { unsigned n = 0; @@ -141,6 +433,28 @@ attempt: int git_odb__read_loose(git_obj *out, git_odb *db, const git_oid *id) { + char file[GIT_PATH_MAX]; + gitfo_buf obj = GITFO_BUF_INIT; + + assert(out && db && id); + + out->data = NULL; + out->len = 0; + out->type = GIT_OBJ_BAD; + + if (object_file_name(file, sizeof(file), db->path, id)) + return GIT_ENOTFOUND; /* TODO: error handling */ + + if (gitfo_read_file(&obj, file)) + return GIT_ENOTFOUND; /* TODO: error handling */ + + if (inflate_disk_obj(out, &obj)) { + gitfo_free_buf(&obj); + return GIT_ENOTFOUND; /* TODO: error handling */ + } + + gitfo_free_buf(&obj); + return GIT_SUCCESS; } diff --git a/tests/t0000-read1.c b/tests/t0000-read1.c new file mode 100644 index 000000000..1b61137f9 --- /dev/null +++ b/tests/t0000-read1.c @@ -0,0 +1,720 @@ +#include +#include +#include +#include +#include +#include + +#include "test_lib.h" +#include +#include "fileops.h" + +static char *odb_dir = "test-objects"; + +typedef struct object_data { + unsigned char *bytes; /* (compressed) bytes stored in object store */ + size_t blen; /* length of data in object store */ + char *id; /* object id (sha1) */ + char *type; /* object type */ + char *dir; /* object store (fan-out) directory name */ + char *file; /* object store filename */ + unsigned char *data; /* (uncompressed) object data */ + size_t dlen; /* length of (uncompressed) object data */ +} object_data; + +/* commit == 3d7f8a6af076c8c3f20071a8935cdbe8228594d1 */ +static unsigned char commit_bytes[] = { + 0x78, 0x01, 0x85, 0x50, 0xc1, 0x6a, 0xc3, 0x30, + 0x0c, 0xdd, 0xd9, 0x5f, 0xa1, 0xfb, 0x96, 0x12, + 0xbb, 0x29, 0x71, 0x46, 0x19, 0x2b, 0x3d, 0x97, + 0x1d, 0xd6, 0x7d, 0x80, 0x1d, 0xcb, 0x89, 0x21, + 0xb6, 0x82, 0xed, 0x40, 0xf3, 0xf7, 0xf3, 0x48, + 0x29, 0x3b, 0x6d, 0xd2, 0xe5, 0xbd, 0x27, 0xbd, + 0x27, 0x50, 0x4f, 0xde, 0xbb, 0x0c, 0xfb, 0x43, + 0xf3, 0x94, 0x23, 0x22, 0x18, 0x6b, 0x85, 0x51, + 0x5d, 0xad, 0xc5, 0xa1, 0x41, 0xae, 0x51, 0x4b, + 0xd9, 0x19, 0x6e, 0x4b, 0x0b, 0x29, 0x35, 0x72, + 0x59, 0xef, 0x5b, 0x29, 0x8c, 0x65, 0x6a, 0xc9, + 0x23, 0x45, 0x38, 0xc1, 0x17, 0x5c, 0x7f, 0xc0, + 0x71, 0x13, 0xde, 0xf1, 0xa6, 0xfc, 0x3c, 0xe1, + 0xae, 0x27, 0xff, 0x06, 0x5c, 0x88, 0x56, 0xf2, + 0x46, 0x74, 0x2d, 0x3c, 0xd7, 0xa5, 0x58, 0x51, + 0xcb, 0xb9, 0x8c, 0x11, 0xce, 0xf0, 0x01, 0x97, + 0x0d, 0x1e, 0x1f, 0xea, 0x3f, 0x6e, 0x76, 0x02, + 0x0a, 0x58, 0x4d, 0x2e, 0x20, 0x6c, 0x1e, 0x48, + 0x8b, 0xf7, 0x2a, 0xae, 0x8c, 0x5d, 0x47, 0x04, + 0x4d, 0x66, 0x05, 0xb2, 0x90, 0x0b, 0xbe, 0xcf, + 0x3d, 0xa6, 0xa4, 0x06, 0x7c, 0x29, 0x3c, 0x64, + 0xe5, 0x82, 0x0b, 0x03, 0xd8, 0x25, 0x96, 0x8d, + 0x08, 0x78, 0x9b, 0x27, 0x15, 0x54, 0x76, 0x14, + 0xd8, 0xdd, 0x35, 0x2f, 0x71, 0xa6, 0x84, 0x8f, + 0x90, 0x51, 0x85, 0x01, 0x13, 0xb8, 0x90, 0x23, + 0x99, 0xa5, 0x47, 0x03, 0x7a, 0xfd, 0x15, 0xbf, + 0x63, 0xec, 0xd3, 0x0d, 0x01, 0x4d, 0x45, 0xb6, + 0xd2, 0xeb, 0xeb, 0xdf, 0xef, 0x60, 0xdf, 0xef, + 0x1f, 0x78, 0x35, +}; + +static unsigned char commit_data[] = { + 0x74, 0x72, 0x65, 0x65, 0x20, 0x64, 0x66, 0x66, + 0x32, 0x64, 0x61, 0x39, 0x30, 0x62, 0x32, 0x35, + 0x34, 0x65, 0x31, 0x62, 0x65, 0x62, 0x38, 0x38, + 0x39, 0x64, 0x31, 0x66, 0x31, 0x66, 0x31, 0x32, + 0x38, 0x38, 0x62, 0x65, 0x31, 0x38, 0x30, 0x33, + 0x37, 0x38, 0x32, 0x64, 0x66, 0x0a, 0x61, 0x75, + 0x74, 0x68, 0x6f, 0x72, 0x20, 0x41, 0x20, 0x55, + 0x20, 0x54, 0x68, 0x6f, 0x72, 0x20, 0x3c, 0x61, + 0x75, 0x74, 0x68, 0x6f, 0x72, 0x40, 0x65, 0x78, + 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x2e, 0x63, 0x6f, + 0x6d, 0x3e, 0x20, 0x31, 0x32, 0x32, 0x37, 0x38, + 0x31, 0x34, 0x32, 0x39, 0x37, 0x20, 0x2b, 0x30, + 0x30, 0x30, 0x30, 0x0a, 0x63, 0x6f, 0x6d, 0x6d, + 0x69, 0x74, 0x74, 0x65, 0x72, 0x20, 0x43, 0x20, + 0x4f, 0x20, 0x4d, 0x69, 0x74, 0x74, 0x65, 0x72, + 0x20, 0x3c, 0x63, 0x6f, 0x6d, 0x6d, 0x69, 0x74, + 0x74, 0x65, 0x72, 0x40, 0x65, 0x78, 0x61, 0x6d, + 0x70, 0x6c, 0x65, 0x2e, 0x63, 0x6f, 0x6d, 0x3e, + 0x20, 0x31, 0x32, 0x32, 0x37, 0x38, 0x31, 0x34, + 0x32, 0x39, 0x37, 0x20, 0x2b, 0x30, 0x30, 0x30, + 0x30, 0x0a, 0x0a, 0x41, 0x20, 0x6f, 0x6e, 0x65, + 0x2d, 0x6c, 0x69, 0x6e, 0x65, 0x20, 0x63, 0x6f, + 0x6d, 0x6d, 0x69, 0x74, 0x20, 0x73, 0x75, 0x6d, + 0x6d, 0x61, 0x72, 0x79, 0x0a, 0x0a, 0x54, 0x68, + 0x65, 0x20, 0x62, 0x6f, 0x64, 0x79, 0x20, 0x6f, + 0x66, 0x20, 0x74, 0x68, 0x65, 0x20, 0x63, 0x6f, + 0x6d, 0x6d, 0x69, 0x74, 0x20, 0x6d, 0x65, 0x73, + 0x73, 0x61, 0x67, 0x65, 0x2c, 0x20, 0x63, 0x6f, + 0x6e, 0x74, 0x61, 0x69, 0x6e, 0x69, 0x6e, 0x67, + 0x20, 0x66, 0x75, 0x72, 0x74, 0x68, 0x65, 0x72, + 0x20, 0x65, 0x78, 0x70, 0x6c, 0x61, 0x6e, 0x61, + 0x74, 0x69, 0x6f, 0x6e, 0x0a, 0x6f, 0x66, 0x20, + 0x74, 0x68, 0x65, 0x20, 0x70, 0x75, 0x72, 0x70, + 0x6f, 0x73, 0x65, 0x20, 0x6f, 0x66, 0x20, 0x74, + 0x68, 0x65, 0x20, 0x63, 0x68, 0x61, 0x6e, 0x67, + 0x65, 0x73, 0x20, 0x69, 0x6e, 0x74, 0x72, 0x6f, + 0x64, 0x75, 0x63, 0x65, 0x64, 0x20, 0x62, 0x79, + 0x20, 0x74, 0x68, 0x65, 0x20, 0x63, 0x6f, 0x6d, + 0x6d, 0x69, 0x74, 0x2e, 0x0a, 0x0a, 0x53, 0x69, + 0x67, 0x6e, 0x65, 0x64, 0x2d, 0x6f, 0x66, 0x2d, + 0x62, 0x79, 0x3a, 0x20, 0x41, 0x20, 0x55, 0x20, + 0x54, 0x68, 0x6f, 0x72, 0x20, 0x3c, 0x61, 0x75, + 0x74, 0x68, 0x6f, 0x72, 0x40, 0x65, 0x78, 0x61, + 0x6d, 0x70, 0x6c, 0x65, 0x2e, 0x63, 0x6f, 0x6d, + 0x3e, 0x0a, +}; + +static object_data commit = { + commit_bytes, + sizeof(commit_bytes), + "3d7f8a6af076c8c3f20071a8935cdbe8228594d1", + "commit", + "test-objects/3d", + "test-objects/3d/7f8a6af076c8c3f20071a8935cdbe8228594d1", + commit_data, + sizeof(commit_data), +}; + +/* tree == dff2da90b254e1beb889d1f1f1288be1803782df */ +static unsigned char tree_bytes[] = { + 0x78, 0x01, 0x2b, 0x29, 0x4a, 0x4d, 0x55, 0x30, + 0x34, 0x32, 0x63, 0x30, 0x34, 0x30, 0x30, 0x33, + 0x31, 0x51, 0xc8, 0xcf, 0x4b, 0x65, 0xe8, 0x16, + 0xae, 0x98, 0x58, 0x29, 0xff, 0x32, 0x53, 0x7d, + 0x6d, 0xc5, 0x33, 0x6f, 0xae, 0xb5, 0xd5, 0xf7, + 0x2e, 0x74, 0xdf, 0x81, 0x4a, 0x17, 0xe7, 0xe7, + 0xa6, 0x32, 0xfc, 0x6d, 0x31, 0xd8, 0xd3, 0xe6, + 0xf3, 0xe7, 0xea, 0x47, 0xbe, 0xd0, 0x09, 0x3f, + 0x96, 0xb8, 0x3f, 0x90, 0x9e, 0xa2, 0xfd, 0x0f, + 0x2a, 0x5f, 0x52, 0x9e, 0xcf, 0x50, 0x31, 0x43, + 0x52, 0x29, 0xd1, 0x5a, 0xeb, 0x77, 0x82, 0x2a, + 0x8b, 0xfe, 0xb7, 0xbd, 0xed, 0x5d, 0x07, 0x67, + 0xfa, 0xb5, 0x42, 0xa5, 0xab, 0x52, 0x8b, 0xf2, + 0x19, 0x9e, 0xcd, 0x7d, 0x34, 0x7b, 0xd3, 0xc5, + 0x6b, 0xce, 0xde, 0xdd, 0x9a, 0xeb, 0xca, 0xa3, + 0x6e, 0x1c, 0x7a, 0xd2, 0x13, 0x3c, 0x11, 0x00, + 0xe2, 0xaa, 0x38, 0x57, +}; + +static unsigned char tree_data[] = { + 0x31, 0x30, 0x30, 0x36, 0x34, 0x34, 0x20, 0x6f, + 0x6e, 0x65, 0x00, 0x8b, 0x13, 0x78, 0x91, 0x79, + 0x1f, 0xe9, 0x69, 0x27, 0xad, 0x78, 0xe6, 0x4b, + 0x0a, 0xad, 0x7b, 0xde, 0xd0, 0x8b, 0xdc, 0x31, + 0x30, 0x30, 0x36, 0x34, 0x34, 0x20, 0x73, 0x6f, + 0x6d, 0x65, 0x00, 0xfd, 0x84, 0x30, 0xbc, 0x86, + 0x4c, 0xfc, 0xd5, 0xf1, 0x0e, 0x55, 0x90, 0xf8, + 0xa4, 0x47, 0xe0, 0x1b, 0x94, 0x2b, 0xfe, 0x31, + 0x30, 0x30, 0x36, 0x34, 0x34, 0x20, 0x74, 0x77, + 0x6f, 0x00, 0x78, 0x98, 0x19, 0x22, 0x61, 0x3b, + 0x2a, 0xfb, 0x60, 0x25, 0x04, 0x2f, 0xf6, 0xbd, + 0x87, 0x8a, 0xc1, 0x99, 0x4e, 0x85, 0x31, 0x30, + 0x30, 0x36, 0x34, 0x34, 0x20, 0x7a, 0x65, 0x72, + 0x6f, 0x00, 0xe6, 0x9d, 0xe2, 0x9b, 0xb2, 0xd1, + 0xd6, 0x43, 0x4b, 0x8b, 0x29, 0xae, 0x77, 0x5a, + 0xd8, 0xc2, 0xe4, 0x8c, 0x53, 0x91, +}; + +static object_data tree = { + tree_bytes, + sizeof(tree_bytes), + "dff2da90b254e1beb889d1f1f1288be1803782df", + "tree", + "test-objects/df", + "test-objects/df/f2da90b254e1beb889d1f1f1288be1803782df", + tree_data, + sizeof(tree_data), +}; + +/* tag == 09d373e1dfdc16b129ceec6dd649739911541e05 */ +static unsigned char tag_bytes[] = { + 0x78, 0x01, 0x35, 0x4e, 0xcb, 0x0a, 0xc2, 0x40, + 0x10, 0xf3, 0xbc, 0x5f, 0x31, 0x77, 0xa1, 0xec, + 0xa3, 0xed, 0x6e, 0x41, 0x44, 0xf0, 0x2c, 0x5e, + 0xfc, 0x81, 0xe9, 0x76, 0xb6, 0xad, 0xb4, 0xb4, + 0x6c, 0x07, 0xd1, 0xbf, 0x77, 0x44, 0x0d, 0x39, + 0x84, 0x10, 0x92, 0x30, 0xf6, 0x60, 0xbc, 0xdb, + 0x2d, 0xed, 0x9d, 0x22, 0x83, 0xeb, 0x7c, 0x0a, + 0x58, 0x63, 0xd2, 0xbe, 0x8e, 0x21, 0xba, 0x64, + 0xb5, 0xf6, 0x06, 0x43, 0xe3, 0xaa, 0xd8, 0xb5, + 0x14, 0xac, 0x0d, 0x55, 0x53, 0x76, 0x46, 0xf1, + 0x6b, 0x25, 0x88, 0xcb, 0x3c, 0x8f, 0xac, 0x58, + 0x3a, 0x1e, 0xba, 0xd0, 0x85, 0xd8, 0xd8, 0xf7, + 0x94, 0xe1, 0x0c, 0x57, 0xb8, 0x8c, 0xcc, 0x22, + 0x0f, 0xdf, 0x90, 0xc8, 0x13, 0x3d, 0x71, 0x5e, + 0x27, 0x2a, 0xc4, 0x39, 0x82, 0xb1, 0xd6, 0x07, + 0x53, 0xda, 0xc6, 0xc3, 0x5e, 0x0b, 0x94, 0xba, + 0x0d, 0xe3, 0x06, 0x42, 0x1e, 0x08, 0x3e, 0x95, + 0xbf, 0x4b, 0x69, 0xc9, 0x90, 0x69, 0x22, 0xdc, + 0xe8, 0xbf, 0xf2, 0x06, 0x42, 0x9a, 0x36, 0xb1, +}; + +static unsigned char tag_data[] = { + 0x6f, 0x62, 0x6a, 0x65, 0x63, 0x74, 0x20, 0x33, + 0x64, 0x37, 0x66, 0x38, 0x61, 0x36, 0x61, 0x66, + 0x30, 0x37, 0x36, 0x63, 0x38, 0x63, 0x33, 0x66, + 0x32, 0x30, 0x30, 0x37, 0x31, 0x61, 0x38, 0x39, + 0x33, 0x35, 0x63, 0x64, 0x62, 0x65, 0x38, 0x32, + 0x32, 0x38, 0x35, 0x39, 0x34, 0x64, 0x31, 0x0a, + 0x74, 0x79, 0x70, 0x65, 0x20, 0x63, 0x6f, 0x6d, + 0x6d, 0x69, 0x74, 0x0a, 0x74, 0x61, 0x67, 0x20, + 0x76, 0x30, 0x2e, 0x30, 0x2e, 0x31, 0x0a, 0x74, + 0x61, 0x67, 0x67, 0x65, 0x72, 0x20, 0x43, 0x20, + 0x4f, 0x20, 0x4d, 0x69, 0x74, 0x74, 0x65, 0x72, + 0x20, 0x3c, 0x63, 0x6f, 0x6d, 0x6d, 0x69, 0x74, + 0x74, 0x65, 0x72, 0x40, 0x65, 0x78, 0x61, 0x6d, + 0x70, 0x6c, 0x65, 0x2e, 0x63, 0x6f, 0x6d, 0x3e, + 0x20, 0x31, 0x32, 0x32, 0x37, 0x38, 0x31, 0x34, + 0x32, 0x39, 0x37, 0x20, 0x2b, 0x30, 0x30, 0x30, + 0x30, 0x0a, 0x0a, 0x54, 0x68, 0x69, 0x73, 0x20, + 0x69, 0x73, 0x20, 0x74, 0x68, 0x65, 0x20, 0x74, + 0x61, 0x67, 0x20, 0x6f, 0x62, 0x6a, 0x65, 0x63, + 0x74, 0x20, 0x66, 0x6f, 0x72, 0x20, 0x72, 0x65, + 0x6c, 0x65, 0x61, 0x73, 0x65, 0x20, 0x76, 0x30, + 0x2e, 0x30, 0x2e, 0x31, 0x0a, +}; + +static object_data tag = { + tag_bytes, + sizeof(tag_bytes), + "09d373e1dfdc16b129ceec6dd649739911541e05", + "tag", + "test-objects/09", + "test-objects/09/d373e1dfdc16b129ceec6dd649739911541e05", + tag_data, + sizeof(tag_data), +}; + +/* zero == e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 */ +static unsigned char zero_bytes[] = { + 0x78, 0x01, 0x4b, 0xca, 0xc9, 0x4f, 0x52, 0x30, + 0x60, 0x00, 0x00, 0x09, 0xb0, 0x01, 0xf0, +}; + +static unsigned char zero_data[] = { + 0x00 /* dummy data */ +}; + +static object_data zero = { + zero_bytes, + sizeof(zero_bytes), + "e69de29bb2d1d6434b8b29ae775ad8c2e48c5391", + "blob", + "test-objects/e6", + "test-objects/e6/9de29bb2d1d6434b8b29ae775ad8c2e48c5391", + zero_data, + 0, +}; + +/* one == 8b137891791fe96927ad78e64b0aad7bded08bdc */ +static unsigned char one_bytes[] = { + 0x78, 0x01, 0x4b, 0xca, 0xc9, 0x4f, 0x52, 0x30, + 0x64, 0xe0, 0x02, 0x00, 0x0b, 0xad, 0x01, 0xfb, +}; + +static unsigned char one_data[] = { + 0x0a, +}; + +static object_data one = { + one_bytes, + sizeof(one_bytes), + "8b137891791fe96927ad78e64b0aad7bded08bdc", + "blob", + "test-objects/8b", + "test-objects/8b/137891791fe96927ad78e64b0aad7bded08bdc", + one_data, + sizeof(one_data), +}; + +/* two == 78981922613b2afb6025042ff6bd878ac1994e85 */ +static unsigned char two_bytes[] = { + 0x78, 0x01, 0x4b, 0xca, 0xc9, 0x4f, 0x52, 0x30, + 0x62, 0x48, 0xe4, 0x02, 0x00, 0x0e, 0x64, 0x02, + 0x5d, +}; + +static unsigned char two_data[] = { + 0x61, 0x0a, +}; + +static object_data two = { + two_bytes, + sizeof(two_bytes), + "78981922613b2afb6025042ff6bd878ac1994e85", + "blob", + "test-objects/78", + "test-objects/78/981922613b2afb6025042ff6bd878ac1994e85", + two_data, + sizeof(two_data), +}; + +/* some == fd8430bc864cfcd5f10e5590f8a447e01b942bfe */ +static unsigned char some_bytes[] = { + 0x78, 0x01, 0x7d, 0x54, 0xc1, 0x4e, 0xe3, 0x30, + 0x10, 0xdd, 0x33, 0x5f, 0x31, 0xc7, 0x5d, 0x94, + 0xa5, 0x84, 0xd5, 0x22, 0xad, 0x7a, 0x0a, 0x15, + 0x85, 0x48, 0xd0, 0x56, 0x49, 0x2a, 0xd4, 0xa3, + 0x13, 0x4f, 0x88, 0x85, 0x63, 0x47, 0xb6, 0x43, + 0xc9, 0xdf, 0xef, 0x8c, 0x69, 0x17, 0x56, 0x0b, + 0x7b, 0xaa, 0x62, 0x7b, 0xde, 0xbc, 0xf7, 0xe6, + 0x4d, 0x6b, 0x6d, 0x6b, 0x48, 0xd3, 0xcb, 0x5f, + 0x5f, 0x66, 0xa7, 0x27, 0x70, 0x0a, 0x55, 0xa7, + 0x3c, 0xb4, 0x4a, 0x23, 0xf0, 0xaf, 0x43, 0x04, + 0x6f, 0xdb, 0xb0, 0x17, 0x0e, 0xe7, 0x30, 0xd9, + 0x11, 0x1a, 0x61, 0xc0, 0xa1, 0x54, 0x3e, 0x38, + 0x55, 0x8f, 0x81, 0x9e, 0x05, 0x10, 0x46, 0xce, + 0xac, 0x83, 0xde, 0x4a, 0xd5, 0x4e, 0x0c, 0x42, + 0x67, 0xa3, 0x91, 0xe8, 0x20, 0x74, 0x08, 0x01, + 0x5d, 0xef, 0xc1, 0xb6, 0xf1, 0xe3, 0x66, 0xb5, + 0x85, 0x1b, 0x34, 0xe8, 0x84, 0x86, 0xcd, 0x58, + 0x6b, 0xd5, 0xc0, 0x9d, 0x6a, 0xd0, 0x78, 0x4c, + 0xe0, 0x19, 0x9d, 0x57, 0xd6, 0xc0, 0x45, 0xc2, + 0x18, 0xc2, 0xc3, 0xc0, 0x0f, 0x7c, 0x87, 0x12, + 0xea, 0x29, 0x56, 0x2f, 0x99, 0x4f, 0x79, 0xe0, + 0x03, 0x4b, 0x4b, 0x4d, 0x44, 0xa0, 0x92, 0x33, + 0x2a, 0xe0, 0x9a, 0xdc, 0x80, 0x90, 0x52, 0xf1, + 0x11, 0x04, 0x1b, 0x4b, 0x06, 0xea, 0xae, 0x3c, + 0xe3, 0x7a, 0x50, 0x74, 0x4a, 0x84, 0xfe, 0xc3, + 0x81, 0x41, 0xf8, 0x89, 0x18, 0x43, 0x67, 0x9d, + 0x87, 0x47, 0xf5, 0x8c, 0x51, 0xf6, 0x68, 0xb4, + 0xea, 0x55, 0x20, 0x2a, 0x6f, 0x80, 0xdc, 0x42, + 0x2b, 0xf3, 0x14, 0x2b, 0x1a, 0xdb, 0x0f, 0xe4, + 0x9a, 0x64, 0x84, 0xa3, 0x90, 0xa8, 0xf9, 0x8f, + 0x9d, 0x86, 0x9e, 0xd3, 0xab, 0x5a, 0x99, 0xc8, + 0xd9, 0xc3, 0x5e, 0x85, 0x0e, 0x2c, 0xb5, 0x73, + 0x30, 0x38, 0xfb, 0xe8, 0x44, 0xef, 0x5f, 0x95, + 0x1b, 0xc9, 0xd0, 0xef, 0x3c, 0x26, 0x32, 0x1e, + 0xff, 0x2d, 0xb6, 0x23, 0x7b, 0x3f, 0xd1, 0x3c, + 0x78, 0x1a, 0x0d, 0xcb, 0xe6, 0xf6, 0xd4, 0x44, + 0x99, 0x47, 0x1a, 0x9e, 0xed, 0x23, 0xb5, 0x91, + 0x6a, 0xdf, 0x53, 0x39, 0x03, 0xf8, 0x5a, 0xb1, + 0x0f, 0x1f, 0xce, 0x81, 0x11, 0xde, 0x01, 0x7a, + 0x90, 0x16, 0xc4, 0x30, 0xe8, 0x89, 0xed, 0x7b, + 0x65, 0x4b, 0xd7, 0x03, 0x36, 0xc1, 0xcf, 0xa1, + 0xa5, 0xb1, 0xe3, 0x8b, 0xe8, 0x07, 0x4d, 0xf3, + 0x23, 0x25, 0x13, 0x35, 0x27, 0xf5, 0x8c, 0x11, + 0xd3, 0xa0, 0x9a, 0xa8, 0xf5, 0x38, 0x7d, 0xce, + 0x55, 0xc2, 0x71, 0x79, 0x13, 0xc7, 0xa3, 0xda, + 0x77, 0x68, 0xc0, 0xd8, 0x10, 0xdd, 0x24, 0x8b, + 0x15, 0x59, 0xc5, 0x10, 0xe2, 0x20, 0x99, 0x8e, + 0xf0, 0x05, 0x9b, 0x31, 0x88, 0x5a, 0xe3, 0xd9, + 0x37, 0xba, 0xe2, 0xdb, 0xbf, 0x92, 0xfa, 0x66, + 0x16, 0x97, 0x47, 0xd9, 0x9d, 0x1d, 0x28, 0x7c, + 0x9d, 0x08, 0x1c, 0xc7, 0xbd, 0xd2, 0x1a, 0x6a, + 0x04, 0xf2, 0xa2, 0x1d, 0x75, 0x02, 0x14, 0x5d, + 0xc6, 0x78, 0xc8, 0xab, 0xdb, 0xf5, 0xb6, 0x82, + 0x6c, 0xb5, 0x83, 0x87, 0xac, 0x28, 0xb2, 0x55, + 0xb5, 0x9b, 0xc7, 0xc1, 0xb0, 0xb7, 0xf8, 0x4c, + 0xbc, 0x38, 0x0e, 0x8a, 0x04, 0x2a, 0x62, 0x41, + 0x6b, 0xe0, 0x84, 0x09, 0x13, 0xe9, 0xe1, 0xea, + 0xfb, 0xeb, 0x62, 0x71, 0x4b, 0x25, 0xd9, 0x55, + 0x7e, 0x97, 0x57, 0x3b, 0x20, 0x33, 0x96, 0x79, + 0xb5, 0xba, 0x2e, 0x4b, 0x58, 0xae, 0x0b, 0xc8, + 0x60, 0x93, 0x15, 0x55, 0xbe, 0xd8, 0xde, 0x65, + 0x05, 0x6c, 0xb6, 0xc5, 0x66, 0x5d, 0x5e, 0x93, + 0xf7, 0x25, 0x65, 0x98, 0x41, 0x29, 0x86, 0x0c, + 0xf2, 0xf1, 0x14, 0xa2, 0xb3, 0xbd, 0x75, 0x08, + 0x12, 0x83, 0x50, 0xda, 0x1f, 0x23, 0xbe, 0xa3, + 0x1d, 0xf4, 0x9d, 0x1d, 0xb5, 0x84, 0x4e, 0x50, + 0x38, 0x1d, 0x36, 0x48, 0x21, 0x95, 0xd1, 0xac, + 0x81, 0x99, 0x1d, 0xc1, 0x3f, 0x41, 0xe6, 0x9e, + 0x42, 0x5b, 0x0a, 0x48, 0xcc, 0x5f, 0xe0, 0x7d, + 0x3f, 0xc4, 0x6f, 0x0e, 0xfe, 0xc0, 0x2d, 0xfe, + 0x01, 0x2c, 0xd6, 0x9b, 0x5d, 0xbe, 0xba, 0x21, + 0xca, 0x79, 0xcb, 0xe3, 0x49, 0x60, 0xef, 0x68, + 0x05, 0x28, 0x9b, 0x8c, 0xc1, 0x12, 0x3e, 0xdb, + 0xc7, 0x04, 0x7e, 0xa6, 0x74, 0x29, 0xcc, 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((fd = gitfo_creat(file, 0664)) < 0) + return -1; + ret = gitfo_write(fd, data, len); + gitfo_close(fd); + + return ret; +} + +static int write_object_files(object_data *d) +{ + if (mkdir(odb_dir, 0755) < 0) { + if (errno == EEXIST) { + fprintf(stderr, "odb directory \"%s\" already exists!\n", odb_dir); + return -1; + } + fprintf(stderr, "can't make odb directory \"%s\"\n", odb_dir); + return -1; + } + + if ((mkdir(d->dir, 0755) < 0) && (errno != EEXIST)) { + fprintf(stderr, "can't make object directory \"%s\"\n", d->dir); + return -1; + } + if (write_object_data(d->file, d->bytes, d->blen) < 0) { + fprintf(stderr, "can't write object file \"%s\"\n", d->file); + return -1; + } + + return 0; +} + +static int remove_object_files(object_data *d) +{ + if (unlink(d->file) < 0) { + fprintf(stderr, "can't delete object file \"%s\"\n", d->file); + return -1; + } + if ((rmdir(d->dir) < 0) && (errno != ENOTEMPTY)) { + fprintf(stderr, "can't remove object directory \"%s\"\n", d->dir); + return -1; + } + + if (rmdir(odb_dir) < 0) { + fprintf(stderr, "can't remove odb directory \"%s\"\n", odb_dir); + return -1; + } + + return 0; +} + +static int cmp_objects(git_obj *o, object_data *d) +{ + if (o->type != git_obj_string_to_type(d->type)) + return -1; + if (o->len != d->dlen) + return -1; + if ((o->len > 0) && (memcmp(o->data, d->data, o->len) != 0)) + return -1; + return 0; +} + +BEGIN_TEST(read_loose_commit) + git_odb *db; + git_oid id; + git_obj obj; + + must_pass(write_object_files(&commit)); + must_pass(git_odb_open(&db, odb_dir)); + must_pass(git_oid_mkstr(&id, commit.id)); + + must_pass(git_odb__read_loose(&obj, db, &id)); + must_pass(cmp_objects(&obj, &commit)); + + git_obj_close(&obj); + git_odb_close(db); + must_pass(remove_object_files(&commit)); +END_TEST + +BEGIN_TEST(read_loose_tree) + git_odb *db; + git_oid id; + git_obj obj; + + must_pass(write_object_files(&tree)); + must_pass(git_odb_open(&db, odb_dir)); + must_pass(git_oid_mkstr(&id, tree.id)); + + must_pass(git_odb__read_loose(&obj, db, &id)); + must_pass(cmp_objects(&obj, &tree)); + + git_obj_close(&obj); + git_odb_close(db); + must_pass(remove_object_files(&tree)); +END_TEST + +BEGIN_TEST(read_loose_tag) + git_odb *db; + git_oid id; + git_obj obj; + + must_pass(write_object_files(&tag)); + must_pass(git_odb_open(&db, odb_dir)); + must_pass(git_oid_mkstr(&id, tag.id)); + + must_pass(git_odb__read_loose(&obj, db, &id)); + must_pass(cmp_objects(&obj, &tag)); + + git_obj_close(&obj); + git_odb_close(db); + must_pass(remove_object_files(&tag)); +END_TEST + +BEGIN_TEST(read_loose_zero) + git_odb *db; + git_oid id; + git_obj obj; + + must_pass(write_object_files(&zero)); + must_pass(git_odb_open(&db, odb_dir)); + must_pass(git_oid_mkstr(&id, zero.id)); + + must_pass(git_odb__read_loose(&obj, db, &id)); + must_pass(cmp_objects(&obj, &zero)); + + git_obj_close(&obj); + git_odb_close(db); + must_pass(remove_object_files(&zero)); +END_TEST + +BEGIN_TEST(read_loose_one) + git_odb *db; + git_oid id; + git_obj obj; + + must_pass(write_object_files(&one)); + must_pass(git_odb_open(&db, odb_dir)); + must_pass(git_oid_mkstr(&id, one.id)); + + must_pass(git_odb__read_loose(&obj, db, &id)); + must_pass(cmp_objects(&obj, &one)); + + git_obj_close(&obj); + git_odb_close(db); + must_pass(remove_object_files(&one)); +END_TEST + +BEGIN_TEST(read_loose_two) + git_odb *db; + git_oid id; + git_obj obj; + + must_pass(write_object_files(&two)); + must_pass(git_odb_open(&db, odb_dir)); + must_pass(git_oid_mkstr(&id, two.id)); + + must_pass(git_odb__read_loose(&obj, db, &id)); + must_pass(cmp_objects(&obj, &two)); + + git_obj_close(&obj); + git_odb_close(db); + must_pass(remove_object_files(&two)); +END_TEST + +BEGIN_TEST(read_loose_some) + git_odb *db; + git_oid id; + git_obj obj; + + must_pass(write_object_files(&some)); + must_pass(git_odb_open(&db, odb_dir)); + must_pass(git_oid_mkstr(&id, some.id)); + + must_pass(git_odb__read_loose(&obj, db, &id)); + must_pass(cmp_objects(&obj, &some)); + + git_obj_close(&obj); + git_odb_close(db); + must_pass(remove_object_files(&some)); +END_TEST + diff --git a/tests/t0000-read2.c b/tests/t0000-read2.c new file mode 100644 index 000000000..c4c199245 --- /dev/null +++ b/tests/t0000-read2.c @@ -0,0 +1,715 @@ +#include +#include +#include +#include +#include +#include + +#include "test_lib.h" +#include +#include "fileops.h" + +static char *odb_dir = "test-objects"; + +typedef struct object_data { + unsigned char *bytes; /* (compressed) bytes stored in object store */ + size_t blen; /* length of data in object store */ + char *id; /* object id (sha1) */ + char *type; /* object type */ + char *dir; /* object store (fan-out) directory name */ + char *file; /* object store filename */ + unsigned char *data; /* (uncompressed) object data */ + size_t dlen; /* length of (uncompressed) object data */ +} object_data; + +/* commit == 3d7f8a6af076c8c3f20071a8935cdbe8228594d1 */ +static unsigned char commit_bytes[] = { + 0x92, 0x16, 0x78, 0x9c, 0x85, 0x90, 0x3d, 0x6e, + 0xc3, 0x30, 0x0c, 0x85, 0x77, 0x9d, 0x82, 0x7b, + 0xeb, 0xc0, 0x52, 0x53, 0x58, 0x2e, 0x82, 0xa2, + 0x41, 0xe7, 0x20, 0x43, 0xd3, 0x03, 0x48, 0x11, + 0x65, 0x0b, 0xb0, 0x28, 0x43, 0x3f, 0x40, 0x7c, + 0xfb, 0x28, 0x70, 0x61, 0x74, 0x6a, 0xc9, 0xe5, + 0xf1, 0x91, 0xdf, 0x1b, 0x98, 0x23, 0x22, 0x18, + 0x6b, 0x85, 0x51, 0x7d, 0xab, 0xc5, 0xeb, 0x1e, + 0xb9, 0x46, 0x2d, 0x65, 0x6f, 0xb8, 0xad, 0x2d, + 0xa4, 0xd4, 0xc8, 0x65, 0xfb, 0xd2, 0x49, 0x61, + 0x2c, 0x53, 0x25, 0x8f, 0x21, 0xc2, 0x11, 0xbe, + 0xe1, 0xf2, 0x10, 0x87, 0xd5, 0xf8, 0xc0, 0x9b, + 0xf2, 0xf3, 0x84, 0xbb, 0x6b, 0xf0, 0xef, 0xc0, + 0x85, 0xe8, 0x24, 0xdf, 0x8b, 0xbe, 0x83, 0xa7, + 0xb6, 0x16, 0xab, 0xae, 0x77, 0x39, 0x63, 0x84, + 0x4f, 0x38, 0xc3, 0x69, 0x95, 0x87, 0xcd, 0xfd, + 0x87, 0x66, 0x47, 0x08, 0x84, 0xcd, 0xe4, 0x08, + 0x61, 0x65, 0x20, 0x15, 0xef, 0x55, 0x5c, 0x18, + 0xbb, 0x8c, 0x08, 0x3a, 0x98, 0x05, 0x82, 0x85, + 0x3c, 0x6e, 0x7b, 0x8f, 0x29, 0xa9, 0x01, 0x9f, + 0xeb, 0x4c, 0x59, 0x39, 0x72, 0x34, 0x80, 0x2d, + 0xb1, 0x5e, 0x44, 0xc0, 0xdb, 0x3c, 0x29, 0x52, + 0xd9, 0x05, 0x62, 0x3f, 0xd4, 0x5c, 0xe2, 0x1c, + 0x12, 0x6e, 0x21, 0xa3, 0xa2, 0x01, 0x13, 0x38, + 0xca, 0x31, 0x98, 0x72, 0x45, 0x03, 0x7a, 0xf9, + 0x15, 0xbf, 0x63, 0xec, 0xcb, 0x0d, 0x84, 0xa6, + 0x09, 0xb6, 0xd1, 0xcb, 0xdb, 0xdf, 0xef, 0x60, + 0x77, 0x51, 0x90, 0x74, 0xf0, +}; + +static unsigned char commit_data[] = { + 0x74, 0x72, 0x65, 0x65, 0x20, 0x64, 0x66, 0x66, + 0x32, 0x64, 0x61, 0x39, 0x30, 0x62, 0x32, 0x35, + 0x34, 0x65, 0x31, 0x62, 0x65, 0x62, 0x38, 0x38, + 0x39, 0x64, 0x31, 0x66, 0x31, 0x66, 0x31, 0x32, + 0x38, 0x38, 0x62, 0x65, 0x31, 0x38, 0x30, 0x33, + 0x37, 0x38, 0x32, 0x64, 0x66, 0x0a, 0x61, 0x75, + 0x74, 0x68, 0x6f, 0x72, 0x20, 0x41, 0x20, 0x55, + 0x20, 0x54, 0x68, 0x6f, 0x72, 0x20, 0x3c, 0x61, + 0x75, 0x74, 0x68, 0x6f, 0x72, 0x40, 0x65, 0x78, + 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x2e, 0x63, 0x6f, + 0x6d, 0x3e, 0x20, 0x31, 0x32, 0x32, 0x37, 0x38, + 0x31, 0x34, 0x32, 0x39, 0x37, 0x20, 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0x66, 0x20, + 0x74, 0x68, 0x65, 0x20, 0x70, 0x75, 0x72, 0x70, + 0x6f, 0x73, 0x65, 0x20, 0x6f, 0x66, 0x20, 0x74, + 0x68, 0x65, 0x20, 0x63, 0x68, 0x61, 0x6e, 0x67, + 0x65, 0x73, 0x20, 0x69, 0x6e, 0x74, 0x72, 0x6f, + 0x64, 0x75, 0x63, 0x65, 0x64, 0x20, 0x62, 0x79, + 0x20, 0x74, 0x68, 0x65, 0x20, 0x63, 0x6f, 0x6d, + 0x6d, 0x69, 0x74, 0x2e, 0x0a, 0x0a, 0x53, 0x69, + 0x67, 0x6e, 0x65, 0x64, 0x2d, 0x6f, 0x66, 0x2d, + 0x62, 0x79, 0x3a, 0x20, 0x41, 0x20, 0x55, 0x20, + 0x54, 0x68, 0x6f, 0x72, 0x20, 0x3c, 0x61, 0x75, + 0x74, 0x68, 0x6f, 0x72, 0x40, 0x65, 0x78, 0x61, + 0x6d, 0x70, 0x6c, 0x65, 0x2e, 0x63, 0x6f, 0x6d, + 0x3e, 0x0a, +}; + +static object_data commit = { + commit_bytes, + sizeof(commit_bytes), + "3d7f8a6af076c8c3f20071a8935cdbe8228594d1", + "commit", + "test-objects/3d", + "test-objects/3d/7f8a6af076c8c3f20071a8935cdbe8228594d1", + commit_data, + sizeof(commit_data), +}; + +/* tree == dff2da90b254e1beb889d1f1f1288be1803782df */ +static unsigned char tree_bytes[] = { + 0x78, 0x9c, 0x2b, 0x29, 0x4a, 0x4d, 0x55, 0x30, + 0x34, 0x32, 0x63, 0x30, 0x34, 0x30, 0x30, 0x33, + 0x31, 0x51, 0xc8, 0xcf, 0x4b, 0x65, 0xe8, 0x16, + 0xae, 0x98, 0x58, 0x29, 0xff, 0x32, 0x53, 0x7d, + 0x6d, 0xc5, 0x33, 0x6f, 0xae, 0xb5, 0xd5, 0xf7, + 0x2e, 0x74, 0xdf, 0x81, 0x4a, 0x17, 0xe7, 0xe7, + 0xa6, 0x32, 0xfc, 0x6d, 0x31, 0xd8, 0xd3, 0xe6, + 0xf3, 0xe7, 0xea, 0x47, 0xbe, 0xd0, 0x09, 0x3f, + 0x96, 0xb8, 0x3f, 0x90, 0x9e, 0xa2, 0xfd, 0x0f, + 0x2a, 0x5f, 0x52, 0x9e, 0xcf, 0x50, 0x31, 0x43, + 0x52, 0x29, 0xd1, 0x5a, 0xeb, 0x77, 0x82, 0x2a, + 0x8b, 0xfe, 0xb7, 0xbd, 0xed, 0x5d, 0x07, 0x67, + 0xfa, 0xb5, 0x42, 0xa5, 0xab, 0x52, 0x8b, 0xf2, + 0x19, 0x9e, 0xcd, 0x7d, 0x34, 0x7b, 0xd3, 0xc5, + 0x6b, 0xce, 0xde, 0xdd, 0x9a, 0xeb, 0xca, 0xa3, + 0x6e, 0x1c, 0x7a, 0xd2, 0x13, 0x3c, 0x11, 0x00, + 0xe2, 0xaa, 0x38, 0x57, +}; + +static unsigned char tree_data[] = { + 0x31, 0x30, 0x30, 0x36, 0x34, 0x34, 0x20, 0x6f, + 0x6e, 0x65, 0x00, 0x8b, 0x13, 0x78, 0x91, 0x79, + 0x1f, 0xe9, 0x69, 0x27, 0xad, 0x78, 0xe6, 0x4b, + 0x0a, 0xad, 0x7b, 0xde, 0xd0, 0x8b, 0xdc, 0x31, + 0x30, 0x30, 0x36, 0x34, 0x34, 0x20, 0x73, 0x6f, + 0x6d, 0x65, 0x00, 0xfd, 0x84, 0x30, 0xbc, 0x86, + 0x4c, 0xfc, 0xd5, 0xf1, 0x0e, 0x55, 0x90, 0xf8, + 0xa4, 0x47, 0xe0, 0x1b, 0x94, 0x2b, 0xfe, 0x31, + 0x30, 0x30, 0x36, 0x34, 0x34, 0x20, 0x74, 0x77, + 0x6f, 0x00, 0x78, 0x98, 0x19, 0x22, 0x61, 0x3b, + 0x2a, 0xfb, 0x60, 0x25, 0x04, 0x2f, 0xf6, 0xbd, + 0x87, 0x8a, 0xc1, 0x99, 0x4e, 0x85, 0x31, 0x30, + 0x30, 0x36, 0x34, 0x34, 0x20, 0x7a, 0x65, 0x72, + 0x6f, 0x00, 0xe6, 0x9d, 0xe2, 0x9b, 0xb2, 0xd1, + 0xd6, 0x43, 0x4b, 0x8b, 0x29, 0xae, 0x77, 0x5a, + 0xd8, 0xc2, 0xe4, 0x8c, 0x53, 0x91, +}; + +static object_data tree = { + tree_bytes, + sizeof(tree_bytes), + "dff2da90b254e1beb889d1f1f1288be1803782df", + "tree", + "test-objects/df", + "test-objects/df/f2da90b254e1beb889d1f1f1288be1803782df", + tree_data, + sizeof(tree_data), +}; + +/* tag == 09d373e1dfdc16b129ceec6dd649739911541e05 */ +static unsigned char tag_bytes[] = { + 0x78, 0x9c, 0x35, 0x8e, 0xcb, 0x0a, 0xc2, 0x30, + 0x10, 0x45, 0x5d, 0xe7, 0x2b, 0x66, 0x2f, 0x84, + 0x3c, 0xda, 0x66, 0x0a, 0x22, 0x82, 0x6b, 0x71, + 0xe3, 0x0f, 0xa4, 0xe9, 0xa4, 0x0f, 0x5a, 0x52, + 0xda, 0x41, 0xf4, 0xef, 0x4d, 0x51, 0x87, 0x59, + 0x1c, 0x2e, 0x97, 0x33, 0xc3, 0xbe, 0x03, 0xed, + 0xec, 0x21, 0x35, 0x23, 0x05, 0x06, 0xdb, 0xba, + 0x88, 0xbe, 0xf2, 0x51, 0xb9, 0x2a, 0x60, 0xb0, + 0xd1, 0x28, 0xe5, 0xb4, 0xc7, 0xda, 0x96, 0xa1, + 0x6d, 0x08, 0x8d, 0xc1, 0xb2, 0x2e, 0x5a, 0x2d, + 0xf8, 0xbd, 0x10, 0x84, 0x34, 0xcf, 0x03, 0x0b, + 0xce, 0x8e, 0xa7, 0x92, 0x4a, 0xea, 0x1d, 0x3b, + 0x5a, 0xe1, 0x0a, 0x77, 0xb8, 0x0d, 0xcc, 0x19, + 0x4f, 0xdf, 0x52, 0xc6, 0x0b, 0xbd, 0xfc, 0xbc, + 0x4c, 0x24, 0x73, 0x72, 0x06, 0x6d, 0x8c, 0x43, + 0x5d, 0x98, 0xda, 0xc1, 0x51, 0xe5, 0x11, 0xe2, + 0xd1, 0x0f, 0x1b, 0xe4, 0xe5, 0x9e, 0x60, 0x57, + 0xfe, 0x5e, 0x8a, 0x69, 0x85, 0x95, 0x26, 0xf2, + 0x1b, 0xfd, 0xaf, 0x7c, 0x00, 0x42, 0x9a, 0x36, + 0xb1, +}; + +static unsigned char tag_data[] = { + 0x6f, 0x62, 0x6a, 0x65, 0x63, 0x74, 0x20, 0x33, + 0x64, 0x37, 0x66, 0x38, 0x61, 0x36, 0x61, 0x66, + 0x30, 0x37, 0x36, 0x63, 0x38, 0x63, 0x33, 0x66, + 0x32, 0x30, 0x30, 0x37, 0x31, 0x61, 0x38, 0x39, + 0x33, 0x35, 0x63, 0x64, 0x62, 0x65, 0x38, 0x32, + 0x32, 0x38, 0x35, 0x39, 0x34, 0x64, 0x31, 0x0a, + 0x74, 0x79, 0x70, 0x65, 0x20, 0x63, 0x6f, 0x6d, + 0x6d, 0x69, 0x74, 0x0a, 0x74, 0x61, 0x67, 0x20, + 0x76, 0x30, 0x2e, 0x30, 0x2e, 0x31, 0x0a, 0x74, + 0x61, 0x67, 0x67, 0x65, 0x72, 0x20, 0x43, 0x20, + 0x4f, 0x20, 0x4d, 0x69, 0x74, 0x74, 0x65, 0x72, + 0x20, 0x3c, 0x63, 0x6f, 0x6d, 0x6d, 0x69, 0x74, + 0x74, 0x65, 0x72, 0x40, 0x65, 0x78, 0x61, 0x6d, + 0x70, 0x6c, 0x65, 0x2e, 0x63, 0x6f, 0x6d, 0x3e, + 0x20, 0x31, 0x32, 0x32, 0x37, 0x38, 0x31, 0x34, + 0x32, 0x39, 0x37, 0x20, 0x2b, 0x30, 0x30, 0x30, + 0x30, 0x0a, 0x0a, 0x54, 0x68, 0x69, 0x73, 0x20, + 0x69, 0x73, 0x20, 0x74, 0x68, 0x65, 0x20, 0x74, + 0x61, 0x67, 0x20, 0x6f, 0x62, 0x6a, 0x65, 0x63, + 0x74, 0x20, 0x66, 0x6f, 0x72, 0x20, 0x72, 0x65, + 0x6c, 0x65, 0x61, 0x73, 0x65, 0x20, 0x76, 0x30, + 0x2e, 0x30, 0x2e, 0x31, 0x0a, +}; + +static object_data tag = { + tag_bytes, + sizeof(tag_bytes), + "09d373e1dfdc16b129ceec6dd649739911541e05", + "tag", + "test-objects/09", + "test-objects/09/d373e1dfdc16b129ceec6dd649739911541e05", + tag_data, + sizeof(tag_data), +}; + +/* zero == e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 */ +static unsigned char zero_bytes[] = { + 0x30, 0x78, 0x9c, 0x03, 0x00, 0x00, 0x00, 0x00, + 0x01, +}; + +static unsigned char zero_data[] = { + 0x00 /* dummy data */ +}; + +static object_data zero = { + zero_bytes, + sizeof(zero_bytes), + "e69de29bb2d1d6434b8b29ae775ad8c2e48c5391", + "blob", + "test-objects/e6", + "test-objects/e6/9de29bb2d1d6434b8b29ae775ad8c2e48c5391", + zero_data, + 0, +}; + +/* one == 8b137891791fe96927ad78e64b0aad7bded08bdc */ +static unsigned char one_bytes[] = { + 0x31, 0x78, 0x9c, 0xe3, 0x02, 0x00, 0x00, 0x0b, + 0x00, 0x0b, +}; + +static unsigned char one_data[] = { + 0x0a, +}; + +static object_data one = { + one_bytes, + sizeof(one_bytes), + "8b137891791fe96927ad78e64b0aad7bded08bdc", + "blob", + "test-objects/8b", + "test-objects/8b/137891791fe96927ad78e64b0aad7bded08bdc", + one_data, + sizeof(one_data), +}; + +/* two == 78981922613b2afb6025042ff6bd878ac1994e85 */ +static unsigned char two_bytes[] = { + 0x32, 0x78, 0x9c, 0x4b, 0xe4, 0x02, 0x00, 0x00, + 0xce, 0x00, 0x6c, +}; + +static unsigned char two_data[] = { + 0x61, 0x0a, +}; + +static object_data two = { + two_bytes, + sizeof(two_bytes), + "78981922613b2afb6025042ff6bd878ac1994e85", + "blob", + "test-objects/78", + "test-objects/78/981922613b2afb6025042ff6bd878ac1994e85", + two_data, + sizeof(two_data), +}; + +/* some == fd8430bc864cfcd5f10e5590f8a447e01b942bfe */ +static unsigned char some_bytes[] = { + 0xb1, 0x49, 0x78, 0x9c, 0x85, 0x53, 0xc1, 0x4e, + 0xe3, 0x30, 0x10, 0xbd, 0xef, 0x57, 0xcc, 0x71, + 0x17, 0x65, 0x81, 0xb2, 0xda, 0x53, 0x4f, 0x01, + 0x51, 0x88, 0x04, 0x6d, 0x95, 0xa4, 0x42, 0x3d, + 0xba, 0xf1, 0x84, 0x8c, 0x70, 0xec, 0xc8, 0x76, + 0x28, 0xf9, 0xfb, 0x9d, 0x31, 0x2d, 0xb0, 0x5a, + 0x56, 0x9c, 0xa2, 0xd8, 0xf3, 0xde, 0xbc, 0x79, + 0xf3, 0x7c, 0x76, 0xf2, 0x0d, 0x4e, 0xa0, 0xee, + 0x28, 0x40, 0x4b, 0x06, 0x41, 0xbe, 0x1e, 0x11, + 0x82, 0x6b, 0xe3, 0x5e, 0x79, 0x9c, 0xc3, 0xe4, + 0x46, 0x68, 0x94, 0x05, 0x8f, 0x9a, 0x42, 0xf4, + 0xb4, 0x1b, 0x23, 0x97, 0x45, 0x50, 0x56, 0x9f, + 0x39, 0x0f, 0xbd, 0xd3, 0xd4, 0x4e, 0x42, 0xc2, + 0x67, 0xa3, 0xd5, 0xe8, 0x21, 0x76, 0x08, 0x11, + 0x7d, 0x1f, 0xc0, 0xb5, 0xe9, 0xe7, 0x66, 0xb9, + 0x81, 0x1b, 0xb4, 0xe8, 0x95, 0x81, 0xf5, 0xb8, + 0x33, 0xd4, 0xc0, 0x1d, 0x35, 0x68, 0x03, 0x66, + 0xf0, 0x8c, 0x3e, 0x90, 0xb3, 0x70, 0x91, 0x09, + 0x87, 0x0a, 0x30, 0x48, 0x41, 0xe8, 0x50, 0xc3, + 0x6e, 0x4a, 0xe8, 0x85, 0xe8, 0xa9, 0x0e, 0x7a, + 0x60, 0xe1, 0xb8, 0x89, 0x8a, 0x0c, 0x39, 0x65, + 0x80, 0x60, 0x0a, 0x0b, 0x4a, 0x6b, 0x92, 0x23, + 0x88, 0x2e, 0x41, 0x06, 0xee, 0x4e, 0x41, 0x78, + 0x03, 0x90, 0xfd, 0x4a, 0x83, 0x90, 0x48, 0x89, + 0x1a, 0x63, 0xe7, 0x7c, 0x80, 0x47, 0x7a, 0xc6, + 0x34, 0xf6, 0x68, 0x0d, 0xf5, 0x14, 0x59, 0xca, + 0x3b, 0xa1, 0xb4, 0x30, 0x64, 0x9f, 0x12, 0xa2, + 0x71, 0xfd, 0xc0, 0xae, 0x69, 0x61, 0x38, 0x0e, + 0x92, 0x66, 0x7e, 0xb3, 0xd3, 0x72, 0x39, 0x57, + 0xed, 0xc8, 0x26, 0xcd, 0x01, 0xf6, 0x14, 0x3b, + 0x70, 0x0c, 0xf6, 0x30, 0x78, 0xf7, 0xe8, 0x55, + 0x1f, 0x5e, 0x27, 0xb7, 0x5a, 0xa8, 0x3f, 0x78, + 0xcc, 0x62, 0x02, 0xfe, 0x0b, 0x76, 0xa3, 0x78, + 0x3f, 0xf1, 0x3e, 0xa4, 0xb2, 0x91, 0x0b, 0xc1, + 0x73, 0x1d, 0xd9, 0x47, 0x5e, 0x9e, 0xeb, 0x93, + 0xb4, 0x91, 0xb1, 0x1f, 0xa5, 0x9c, 0x02, 0x7c, + 0xaf, 0xc5, 0x87, 0x4f, 0x3d, 0x10, 0x86, 0x0f, + 0x84, 0x01, 0xb4, 0x03, 0x35, 0x0c, 0x66, 0x12, + 0xfb, 0x5e, 0xd5, 0xf2, 0xf5, 0x80, 0x4d, 0x0c, + 0x73, 0x68, 0x79, 0xed, 0xf8, 0xa2, 0xfa, 0xc1, + 0xf0, 0xfe, 0xf8, 0x6e, 0xe2, 0xe6, 0x3c, 0xbd, + 0x70, 0xa4, 0x34, 0x50, 0x93, 0xe4, 0x1e, 0xb7, + 0x2f, 0xdd, 0xb3, 0x34, 0xdf, 0xdb, 0x70, 0x72, + 0xbb, 0xef, 0xd0, 0x82, 0x75, 0x31, 0xb9, 0xc9, + 0x16, 0x8b, 0x55, 0xc9, 0x88, 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"fd8430bc864cfcd5f10e5590f8a447e01b942bfe", + "blob", + "test-objects/fd", + "test-objects/fd/8430bc864cfcd5f10e5590f8a447e01b942bfe", + some_data, + sizeof(some_data), +}; + +static int write_object_data(char *file, void *data, size_t len) +{ + git_file fd; + int ret; + + if ((fd = gitfo_creat(file, 0664)) < 0) + return -1; + ret = gitfo_write(fd, data, len); + gitfo_close(fd); + + return ret; +} + +static int write_object_files(object_data *d) +{ + if (mkdir(odb_dir, 0755) < 0) { + if (errno == EEXIST) { + fprintf(stderr, "odb directory \"%s\" already exists!\n", odb_dir); + return -1; + } + fprintf(stderr, "can't make odb directory \"%s\"\n", odb_dir); + return -1; + } + + if ((mkdir(d->dir, 0755) < 0) && (errno != EEXIST)) { + fprintf(stderr, "can't make object directory \"%s\"\n", d->dir); + return -1; + } + if (write_object_data(d->file, d->bytes, d->blen) < 0) { + fprintf(stderr, "can't write object file \"%s\"\n", d->file); + return -1; + } + + return 0; +} + +static int remove_object_files(object_data *d) +{ + if (unlink(d->file) < 0) { + fprintf(stderr, "can't delete object file \"%s\"\n", d->file); + return -1; + } + if ((rmdir(d->dir) < 0) && (errno != ENOTEMPTY)) { + fprintf(stderr, "can't remove object directory \"%s\"\n", d->dir); + return -1; + } + + if (rmdir(odb_dir) < 0) { + fprintf(stderr, "can't remove odb directory \"%s\"\n", odb_dir); + return -1; + } + + return 0; +} + +static int cmp_objects(git_obj *o, object_data *d) +{ + if (o->type != git_obj_string_to_type(d->type)) + return -1; + if (o->len != d->dlen) + return -1; + if ((o->len > 0) && (memcmp(o->data, d->data, o->len) != 0)) + return -1; + return 0; +} + +BEGIN_TEST(read_loose_commit) + git_odb *db; + git_oid id; + git_obj obj; + + must_pass(write_object_files(&commit)); + must_pass(git_odb_open(&db, odb_dir)); + must_pass(git_oid_mkstr(&id, commit.id)); + + must_pass(git_odb__read_loose(&obj, db, &id)); + must_pass(cmp_objects(&obj, &commit)); + + git_obj_close(&obj); + git_odb_close(db); + must_pass(remove_object_files(&commit)); +END_TEST + +BEGIN_TEST(read_loose_tree) + git_odb *db; + git_oid id; + git_obj obj; + + must_pass(write_object_files(&tree)); + must_pass(git_odb_open(&db, odb_dir)); + must_pass(git_oid_mkstr(&id, tree.id)); + + must_pass(git_odb__read_loose(&obj, db, &id)); + must_pass(cmp_objects(&obj, &tree)); + + git_obj_close(&obj); + git_odb_close(db); + must_pass(remove_object_files(&tree)); +END_TEST + +BEGIN_TEST(read_loose_tag) + git_odb *db; + git_oid id; + git_obj obj; + + must_pass(write_object_files(&tag)); + must_pass(git_odb_open(&db, odb_dir)); + must_pass(git_oid_mkstr(&id, tag.id)); + + must_pass(git_odb__read_loose(&obj, db, &id)); + must_pass(cmp_objects(&obj, &tag)); + + git_obj_close(&obj); + git_odb_close(db); + must_pass(remove_object_files(&tag)); +END_TEST + +BEGIN_TEST(read_loose_zero) + git_odb *db; + git_oid id; + git_obj obj; + + must_pass(write_object_files(&zero)); + must_pass(git_odb_open(&db, odb_dir)); + must_pass(git_oid_mkstr(&id, zero.id)); + + must_pass(git_odb__read_loose(&obj, db, &id)); + must_pass(cmp_objects(&obj, &zero)); + + git_obj_close(&obj); + git_odb_close(db); + must_pass(remove_object_files(&zero)); +END_TEST + +BEGIN_TEST(read_loose_one) + git_odb *db; + git_oid id; + git_obj obj; + + must_pass(write_object_files(&one)); + must_pass(git_odb_open(&db, odb_dir)); + must_pass(git_oid_mkstr(&id, one.id)); + + must_pass(git_odb__read_loose(&obj, db, &id)); + must_pass(cmp_objects(&obj, &one)); + + git_obj_close(&obj); + git_odb_close(db); + must_pass(remove_object_files(&one)); +END_TEST + +BEGIN_TEST(read_loose_two) + git_odb *db; + git_oid id; + git_obj obj; + + must_pass(write_object_files(&two)); + must_pass(git_odb_open(&db, odb_dir)); + must_pass(git_oid_mkstr(&id, two.id)); + + must_pass(git_odb__read_loose(&obj, db, &id)); + must_pass(cmp_objects(&obj, &two)); + + git_obj_close(&obj); + git_odb_close(db); + must_pass(remove_object_files(&two)); +END_TEST + +BEGIN_TEST(read_loose_some) + git_odb *db; + git_oid id; + git_obj obj; + + must_pass(write_object_files(&some)); + must_pass(git_odb_open(&db, odb_dir)); + must_pass(git_oid_mkstr(&id, some.id)); + + must_pass(git_odb__read_loose(&obj, db, &id)); + must_pass(cmp_objects(&obj, &some)); + + git_obj_close(&obj); + git_odb_close(db); + must_pass(remove_object_files(&some)); +END_TEST +