diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/backends/sqlite.c | 277 | ||||
| -rw-r--r-- | src/git2/odb_backend.h | 7 | ||||
| -rw-r--r-- | src/t03-data.h | 344 |
3 files changed, 628 insertions, 0 deletions
diff --git a/src/backends/sqlite.c b/src/backends/sqlite.c new file mode 100644 index 000000000..ad5b679f9 --- /dev/null +++ b/src/backends/sqlite.c @@ -0,0 +1,277 @@ +/* + * This file is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2, + * as published by the Free Software Foundation. + * + * In addition to the permissions in the GNU General Public License, + * the authors give you unlimited permission to link the compiled + * version of this file into combinations with other programs, + * and to distribute those combinations without any restriction + * coming from the use of this file. (The General Public License + * restrictions do apply in other respects; for example, they cover + * modification of the file, and distribution when not linked into + * a combined executable.) + * + * This file is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; see the file COPYING. If not, write to + * the Free Software Foundation, 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + */ + +#include "common.h" +#include "git2/object.h" +#include "hash.h" +#include "odb.h" + +#include "git2/odb_backend.h" + +#ifdef GIT2_SQLITE_BACKEND + +#include <sqlite3.h> + +#define GIT2_TABLE_NAME "git2_odb" + +typedef struct { + git_odb_backend parent; + sqlite3 *db; + sqlite3_stmt *st_read; + sqlite3_stmt *st_write; + sqlite3_stmt *st_read_header; +} sqlite_backend; + +int sqlite_backend__read_header(git_rawobj *obj, git_odb_backend *_backend, const git_oid *oid) +{ + sqlite_backend *backend; + int error; + + assert(obj && _backend && oid); + + backend = (sqlite_backend *)_backend; + error = GIT_ERROR; + obj->data = NULL; + + if (sqlite3_bind_text(backend->st_read_header, 1, (char *)oid->id, 20, SQLITE_TRANSIENT) == SQLITE_OK) { + if (sqlite3_step(backend->st_read_header) == SQLITE_ROW) { + obj->type = sqlite3_column_int(backend->st_read_header, 0); + obj->len = sqlite3_column_int(backend->st_read_header, 1); + assert(sqlite3_step(backend->st_read_header) == SQLITE_DONE); + error = GIT_SUCCESS; + } else { + error = GIT_ENOTFOUND; + } + } + + sqlite3_reset(backend->st_read_header); + return error; +} + + +int sqlite_backend__read(git_rawobj *obj, git_odb_backend *_backend, const git_oid *oid) +{ + sqlite_backend *backend; + int error; + + assert(obj && _backend && oid); + + backend = (sqlite_backend *)_backend; + error = GIT_ERROR; + + if (sqlite3_bind_text(backend->st_read, 1, (char *)oid->id, 20, SQLITE_TRANSIENT) == SQLITE_OK) { + if (sqlite3_step(backend->st_read) == SQLITE_ROW) { + obj->type = sqlite3_column_int(backend->st_read, 0); + obj->len = sqlite3_column_int(backend->st_read, 1); + obj->data = git__malloc(obj->len); + + if (obj->data == NULL) { + error = GIT_ENOMEM; + } else { + memcpy(obj->data, sqlite3_column_blob(backend->st_read, 2), obj->len); + error = GIT_SUCCESS; + } + + assert(sqlite3_step(backend->st_read) == SQLITE_DONE); + } else { + error = GIT_ENOTFOUND; + } + } + + sqlite3_reset(backend->st_read); + return error; +} + +int sqlite_backend__exists(git_odb_backend *_backend, const git_oid *oid) +{ + sqlite_backend *backend; + int found; + + assert(_backend && oid); + + backend = (sqlite_backend *)_backend; + found = 0; + + if (sqlite3_bind_text(backend->st_read_header, 1, (char *)oid->id, 20, SQLITE_TRANSIENT) == SQLITE_OK) { + if (sqlite3_step(backend->st_read_header) == SQLITE_ROW) { + found = 1; + assert(sqlite3_step(backend->st_read_header) == SQLITE_DONE); + } + } + + sqlite3_reset(backend->st_read_header); + return found; +} + + +int sqlite_backend__write(git_oid *id, git_odb_backend *_backend, git_rawobj *obj) +{ + char hdr[64]; + int hdrlen; + + int error; + sqlite_backend *backend; + + assert(id && _backend && obj); + + backend = (sqlite_backend *)_backend; + + if ((error = git_odb__hash_obj(id, hdr, sizeof(hdr), &hdrlen, obj)) < 0) + return error; + + error = SQLITE_ERROR; + + if (sqlite3_bind_text(backend->st_write, 1, (char *)id->id, 20, SQLITE_TRANSIENT) == SQLITE_OK && + sqlite3_bind_int(backend->st_write, 2, (int)obj->type) == SQLITE_OK && + sqlite3_bind_int(backend->st_write, 3, obj->len) == SQLITE_OK && + sqlite3_bind_blob(backend->st_write, 4, obj->data, obj->len, SQLITE_TRANSIENT) == SQLITE_OK) { + error = sqlite3_step(backend->st_write); + } + + sqlite3_reset(backend->st_write); + return (error == SQLITE_DONE) ? GIT_SUCCESS : GIT_ERROR; +} + + +void sqlite_backend__free(git_odb_backend *_backend) +{ + sqlite_backend *backend; + assert(_backend); + backend = (sqlite_backend *)_backend; + + sqlite3_finalize(backend->st_read); + sqlite3_finalize(backend->st_read_header); + sqlite3_finalize(backend->st_write); + sqlite3_close(backend->db); + + free(backend); +} + +static int create_table(sqlite3 *db) +{ + static const char *sql_creat = + "CREATE TABLE '" GIT2_TABLE_NAME "' (" + "'oid' CHARACTER(20) PRIMARY KEY NOT NULL," + "'type' INTEGER NOT NULL," + "'size' INTEGER NOT NULL," + "'data' BLOB);"; + + if (sqlite3_exec(db, sql_creat, NULL, NULL, NULL) != SQLITE_OK) + return GIT_ERROR; + + return GIT_SUCCESS; +} + +static int init_db(sqlite3 *db) +{ + static const char *sql_check = + "SELECT name FROM sqlite_master WHERE type='table' AND name='" GIT2_TABLE_NAME "';"; + + sqlite3_stmt *st_check; + int error; + + if (sqlite3_prepare_v2(db, sql_check, -1, &st_check, NULL) != SQLITE_OK) + return GIT_ERROR; + + switch (sqlite3_step(st_check)) { + case SQLITE_DONE: + /* the table was not found */ + error = create_table(db); + break; + + case SQLITE_ROW: + /* the table was found */ + error = GIT_SUCCESS; + break; + + default: + error = GIT_ERROR; + break; + } + + sqlite3_finalize(st_check); + return error; +} + +static int init_statements(sqlite_backend *backend) +{ + static const char *sql_read = + "SELECT type, size, data FROM '" GIT2_TABLE_NAME "' WHERE oid = ?;"; + + static const char *sql_read_header = + "SELECT type, size FROM '" GIT2_TABLE_NAME "' WHERE oid = ?;"; + + static const char *sql_write = + "INSERT OR IGNORE INTO '" GIT2_TABLE_NAME "' VALUES (?, ?, ?, ?);"; + + if (sqlite3_prepare_v2(backend->db, sql_read, -1, &backend->st_read, NULL) != SQLITE_OK) + return GIT_ERROR; + + if (sqlite3_prepare_v2(backend->db, sql_read_header, -1, &backend->st_read_header, NULL) != SQLITE_OK) + return GIT_ERROR; + + if (sqlite3_prepare_v2(backend->db, sql_write, -1, &backend->st_write, NULL) != SQLITE_OK) + return GIT_ERROR; + + return GIT_SUCCESS; +} + +int git_odb_backend_sqlite(git_odb_backend **backend_out, const char *sqlite_db) +{ + sqlite_backend *backend; + int error; + + backend = git__calloc(1, sizeof(sqlite_backend)); + if (backend == NULL) + return GIT_ENOMEM; + + if (sqlite3_open(sqlite_db, &backend->db) != SQLITE_OK) + goto cleanup; + + error = init_db(backend->db); + if (error < 0) + goto cleanup; + + error = init_statements(backend); + if (error < 0) + goto cleanup; + + backend->parent.read = &sqlite_backend__read; + backend->parent.read_header = &sqlite_backend__read_header; + backend->parent.write = &sqlite_backend__write; + backend->parent.exists = &sqlite_backend__exists; + backend->parent.free = &sqlite_backend__free; + + backend->parent.priority = 0; + + *backend_out = (git_odb_backend *)backend; + return GIT_SUCCESS; + +cleanup: + sqlite_backend__free((git_odb_backend *)backend); + return GIT_ERROR; +} + +#endif /* HAVE_SQLITE3 */ diff --git a/src/git2/odb_backend.h b/src/git2/odb_backend.h index 9c0c3ad6f..ee7e5dfde 100644 --- a/src/git2/odb_backend.h +++ b/src/git2/odb_backend.h @@ -66,6 +66,13 @@ struct git_odb_backend { void (* free)(struct git_odb_backend *); }; +GIT_EXTERN(int) git_odb_backend_pack(git_odb_backend **backend_out, const char *objects_dir); +GIT_EXTERN(int) git_odb_backend_loose(git_odb_backend **backend_out, const char *objects_dir); + +#ifdef GIT2_SQLITE_BACKEND +GIT_EXTERN(int) git_odb_backend_sqlite(git_odb_backend **backend_out, const char *sqlite_db); +#endif + GIT_END_DECL #endif diff --git a/src/t03-data.h b/src/t03-data.h new file mode 100644 index 000000000..a4b73fec3 --- /dev/null +++ b/src/t03-data.h @@ -0,0 +1,344 @@ + +typedef struct object_data { + char *id; /* object id (sha1) */ + char *dir; /* object store (fan-out) directory name */ + char *file; /* object store filename */ +} object_data; + +static object_data commit = { + "3d7f8a6af076c8c3f20071a8935cdbe8228594d1", + "test-objects/3d", + "test-objects/3d/7f8a6af076c8c3f20071a8935cdbe8228594d1", +}; + +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 git_rawobj commit_obj = { + commit_data, + sizeof(commit_data), + GIT_OBJ_COMMIT +}; + +static object_data tree = { + "dff2da90b254e1beb889d1f1f1288be1803782df", + "test-objects/df", + "test-objects/df/f2da90b254e1beb889d1f1f1288be1803782df", +}; + +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 git_rawobj tree_obj = { + tree_data, + sizeof(tree_data), + GIT_OBJ_TREE +}; + +static object_data tag = { + "09d373e1dfdc16b129ceec6dd649739911541e05", + "test-objects/09", + "test-objects/09/d373e1dfdc16b129ceec6dd649739911541e05", +}; + +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 git_rawobj tag_obj = { + tag_data, + sizeof(tag_data), + GIT_OBJ_TAG +}; + +static object_data zero = { + "e69de29bb2d1d6434b8b29ae775ad8c2e48c5391", + "test-objects/e6", + "test-objects/e6/9de29bb2d1d6434b8b29ae775ad8c2e48c5391", +}; + +static unsigned char zero_data[] = { + 0x00 /* dummy data */ +}; + +static git_rawobj zero_obj = { + zero_data, + 0, + GIT_OBJ_BLOB +}; + +static object_data one = { + "8b137891791fe96927ad78e64b0aad7bded08bdc", + "test-objects/8b", + "test-objects/8b/137891791fe96927ad78e64b0aad7bded08bdc", +}; + +static unsigned char one_data[] = { + 0x0a, +}; + +static git_rawobj one_obj = { + one_data, + sizeof(one_data), + GIT_OBJ_BLOB +}; + +static object_data two = { + "78981922613b2afb6025042ff6bd878ac1994e85", + "test-objects/78", + "test-objects/78/981922613b2afb6025042ff6bd878ac1994e85", +}; + +static unsigned char two_data[] = { + 0x61, 0x0a, +}; + +static git_rawobj two_obj = { + two_data, + sizeof(two_data), + GIT_OBJ_BLOB +}; + +static object_data some = { + "fd8430bc864cfcd5f10e5590f8a447e01b942bfe", + "test-objects/fd", + "test-objects/fd/8430bc864cfcd5f10e5590f8a447e01b942bfe", +}; + +static unsigned char some_data[] = { + 0x2f, 0x2a, 0x0a, 0x20, 0x2a, 0x20, 0x54, 0x68, + 0x69, 0x73, 0x20, 0x66, 0x69, 0x6c, 0x65, 0x20, + 0x69, 0x73, 0x20, 0x66, 0x72, 0x65, 0x65, 0x20, + 0x73, 0x6f, 0x66, 0x74, 0x77, 0x61, 0x72, 0x65, + 0x3b, 0x20, 0x79, 0x6f, 0x75, 0x20, 0x63, 0x61, + 0x6e, 0x20, 0x72, 0x65, 0x64, 0x69, 0x73, 0x74, + 0x72, 0x69, 0x62, 0x75, 0x74, 0x65, 0x20, 0x69, + 0x74, 0x20, 0x61, 0x6e, 0x64, 0x2f, 0x6f, 0x72, + 0x20, 0x6d, 0x6f, 0x64, 0x69, 0x66, 0x79, 0x0a, + 0x20, 0x2a, 0x20, 0x69, 0x74, 0x20, 0x75, 0x6e, + 0x64, 0x65, 0x72, 0x20, 0x74, 0x68, 0x65, 0x20, + 0x74, 0x65, 0x72, 0x6d, 0x73, 0x20, 0x6f, 0x66, + 0x20, 0x74, 0x68, 0x65, 0x20, 0x47, 0x4e, 0x55, + 0x20, 0x47, 0x65, 0x6e, 0x65, 0x72, 0x61, 0x6c, + 0x20, 0x50, 0x75, 0x62, 0x6c, 0x69, 0x63, 0x20, + 0x4c, 0x69, 0x63, 0x65, 0x6e, 0x73, 0x65, 0x2c, + 0x20, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, + 0x20, 0x32, 0x2c, 0x0a, 0x20, 0x2a, 0x20, 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