diff options
Diffstat (limited to 'src/reader.c')
| -rw-r--r-- | src/reader.c | 269 |
1 files changed, 0 insertions, 269 deletions
diff --git a/src/reader.c b/src/reader.c deleted file mode 100644 index 48928940d..000000000 --- a/src/reader.c +++ /dev/null @@ -1,269 +0,0 @@ -/* - * Copyright (C) the libgit2 contributors. All rights reserved. - * - * This file is part of libgit2, distributed under the GNU GPL v2 with - * a Linking Exception. For full terms see the included COPYING file. - */ - -#include "reader.h" - -#include "futils.h" -#include "blob.h" - -#include "git2/tree.h" -#include "git2/blob.h" -#include "git2/index.h" -#include "git2/repository.h" - -/* tree reader */ - -typedef struct { - git_reader reader; - git_tree *tree; -} tree_reader; - -static int tree_reader_read( - git_buf *out, - git_oid *out_id, - git_filemode_t *out_filemode, - git_reader *_reader, - const char *filename) -{ - tree_reader *reader = (tree_reader *)_reader; - git_tree_entry *tree_entry = NULL; - git_blob *blob = NULL; - git_object_size_t blobsize; - int error; - - if ((error = git_tree_entry_bypath(&tree_entry, reader->tree, filename)) < 0 || - (error = git_blob_lookup(&blob, git_tree_owner(reader->tree), git_tree_entry_id(tree_entry))) < 0) - goto done; - - blobsize = git_blob_rawsize(blob); - GIT_ERROR_CHECK_BLOBSIZE(blobsize); - - if ((error = git_buf_set(out, git_blob_rawcontent(blob), (size_t)blobsize)) < 0) - goto done; - - if (out_id) - git_oid_cpy(out_id, git_tree_entry_id(tree_entry)); - - if (out_filemode) - *out_filemode = git_tree_entry_filemode(tree_entry); - -done: - git_blob_free(blob); - git_tree_entry_free(tree_entry); - return error; -} - -int git_reader_for_tree(git_reader **out, git_tree *tree) -{ - tree_reader *reader; - - GIT_ASSERT_ARG(out); - GIT_ASSERT_ARG(tree); - - reader = git__calloc(1, sizeof(tree_reader)); - GIT_ERROR_CHECK_ALLOC(reader); - - reader->reader.read = tree_reader_read; - reader->tree = tree; - - *out = (git_reader *)reader; - return 0; -} - -/* workdir reader */ - -typedef struct { - git_reader reader; - git_repository *repo; - git_index *index; -} workdir_reader; - -static int workdir_reader_read( - git_buf *out, - git_oid *out_id, - git_filemode_t *out_filemode, - git_reader *_reader, - const char *filename) -{ - workdir_reader *reader = (workdir_reader *)_reader; - git_buf path = GIT_BUF_INIT; - struct stat st; - git_filemode_t filemode; - git_filter_list *filters = NULL; - const git_index_entry *idx_entry; - git_oid id; - int error; - - if ((error = git_repository_workdir_path(&path, reader->repo, filename)) < 0) - goto done; - - if ((error = p_lstat(path.ptr, &st)) < 0) { - if (error == -1 && errno == ENOENT) - error = GIT_ENOTFOUND; - - git_error_set(GIT_ERROR_OS, "could not stat '%s'", path.ptr); - goto done; - } - - filemode = git_futils_canonical_mode(st.st_mode); - - /* - * Patch application - for example - uses the filtered version of - * the working directory data to match git. So we will run the - * workdir -> ODB filter on the contents in this workdir reader. - */ - if ((error = git_filter_list_load(&filters, reader->repo, NULL, filename, - GIT_FILTER_TO_ODB, GIT_FILTER_DEFAULT)) < 0) - goto done; - - if ((error = git_filter_list_apply_to_file(out, - filters, reader->repo, path.ptr)) < 0) - goto done; - - if (out_id || reader->index) { - if ((error = git_odb_hash(&id, out->ptr, out->size, GIT_OBJECT_BLOB)) < 0) - goto done; - } - - if (reader->index) { - if (!(idx_entry = git_index_get_bypath(reader->index, filename, 0)) || - filemode != idx_entry->mode || - !git_oid_equal(&id, &idx_entry->id)) { - error = GIT_READER_MISMATCH; - goto done; - } - } - - if (out_id) - git_oid_cpy(out_id, &id); - - if (out_filemode) - *out_filemode = filemode; - -done: - git_filter_list_free(filters); - git_buf_dispose(&path); - return error; -} - -int git_reader_for_workdir( - git_reader **out, - git_repository *repo, - bool validate_index) -{ - workdir_reader *reader; - int error; - - GIT_ASSERT_ARG(out); - GIT_ASSERT_ARG(repo); - - reader = git__calloc(1, sizeof(workdir_reader)); - GIT_ERROR_CHECK_ALLOC(reader); - - reader->reader.read = workdir_reader_read; - reader->repo = repo; - - if (validate_index && - (error = git_repository_index__weakptr(&reader->index, repo)) < 0) { - git__free(reader); - return error; - } - - *out = (git_reader *)reader; - return 0; -} - -/* index reader */ - -typedef struct { - git_reader reader; - git_repository *repo; - git_index *index; -} index_reader; - -static int index_reader_read( - git_buf *out, - git_oid *out_id, - git_filemode_t *out_filemode, - git_reader *_reader, - const char *filename) -{ - index_reader *reader = (index_reader *)_reader; - const git_index_entry *entry; - git_blob *blob; - int error; - - if ((entry = git_index_get_bypath(reader->index, filename, 0)) == NULL) - return GIT_ENOTFOUND; - - if ((error = git_blob_lookup(&blob, reader->repo, &entry->id)) < 0) - goto done; - - if (out_id) - git_oid_cpy(out_id, &entry->id); - - if (out_filemode) - *out_filemode = entry->mode; - - error = git_blob__getbuf(out, blob); - -done: - git_blob_free(blob); - return error; -} - -int git_reader_for_index( - git_reader **out, - git_repository *repo, - git_index *index) -{ - index_reader *reader; - int error; - - GIT_ASSERT_ARG(out); - GIT_ASSERT_ARG(repo); - - reader = git__calloc(1, sizeof(index_reader)); - GIT_ERROR_CHECK_ALLOC(reader); - - reader->reader.read = index_reader_read; - reader->repo = repo; - - if (index) { - reader->index = index; - } else if ((error = git_repository_index__weakptr(&reader->index, repo)) < 0) { - git__free(reader); - return error; - } - - *out = (git_reader *)reader; - return 0; -} - -/* generic */ - -int git_reader_read( - git_buf *out, - git_oid *out_id, - git_filemode_t *out_filemode, - git_reader *reader, - const char *filename) -{ - GIT_ASSERT_ARG(out); - GIT_ASSERT_ARG(reader); - GIT_ASSERT_ARG(filename); - - return reader->read(out, out_id, out_filemode, reader, filename); -} - -void git_reader_free(git_reader *reader) -{ - if (!reader) - return; - - git__free(reader); -} |