forked from agorise/c-ipfs
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fa3dd77e96
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396dfc6abc
6 changed files with 74 additions and 19 deletions
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@ -50,7 +50,7 @@ int ipfs_importer_add_filesize_to_data_section(struct Node* node, size_t bytes_r
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* @param node the node to add to
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* @returns number of bytes read
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*/
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size_t ipfs_import_chunk(FILE* file, struct Node* parent_node, struct FSRepo* fs_repo, size_t* total_size) {
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size_t ipfs_import_chunk(FILE* file, struct Node* parent_node, struct FSRepo* fs_repo, size_t* total_size, size_t* bytes_written) {
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unsigned char buffer[MAX_DATA_SIZE];
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size_t bytes_read = fread(buffer, 1, MAX_DATA_SIZE, file);
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@ -75,8 +75,8 @@ size_t ipfs_import_chunk(FILE* file, struct Node* parent_node, struct FSRepo* fs
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return 0;
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}
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unsigned char protobuf[protobuf_size];
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size_t bytes_written = 0;
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if (ipfs_unixfs_protobuf_encode(new_unixfs, protobuf, protobuf_size, &bytes_written) == 0) {
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*bytes_written = 0;
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if (ipfs_unixfs_protobuf_encode(new_unixfs, protobuf, protobuf_size, bytes_written) == 0) {
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ipfs_unixfs_free(new_unixfs);
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return 0;
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}
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@ -84,10 +84,12 @@ size_t ipfs_import_chunk(FILE* file, struct Node* parent_node, struct FSRepo* fs
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// we're done with the UnixFS object
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ipfs_unixfs_free(new_unixfs);
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size_t size_of_node = 0;
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// if there is more to read, create a new node.
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if (bytes_read == MAX_DATA_SIZE) {
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// create a new node
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if (ipfs_node_new_from_data(protobuf, bytes_written, &new_node) == 0) {
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if (ipfs_node_new_from_data(protobuf, *bytes_written, &new_node) == 0) {
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return 0;
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}
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// persist
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@ -111,19 +113,20 @@ size_t ipfs_import_chunk(FILE* file, struct Node* parent_node, struct FSRepo* fs
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}
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ipfs_importer_add_filesize_to_data_section(parent_node, bytes_read);
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ipfs_node_free(new_node);
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*bytes_written = size_of_node;
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size_of_node = 0;
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} else {
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// if there are no existing links, put what we pulled from the file into parent_node
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// otherwise, add it as a link
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if (parent_node->head_link == NULL) {
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ipfs_node_set_data(parent_node, protobuf, bytes_written);
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ipfs_node_set_data(parent_node, protobuf, *bytes_written);
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} else {
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// there are existing links. put the data in a new node, save it, then put the link in parent_node
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// create a new node
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if (ipfs_node_new_from_data(protobuf, bytes_written, &new_node) == 0) {
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if (ipfs_node_new_from_data(protobuf, *bytes_written, &new_node) == 0) {
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return 0;
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}
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// persist
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size_t size_of_node = 0;
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if (ipfs_merkledag_add(new_node, fs_repo, &size_of_node) == 0) {
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ipfs_node_free(new_node);
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return 0;
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@ -145,7 +148,8 @@ size_t ipfs_import_chunk(FILE* file, struct Node* parent_node, struct FSRepo* fs
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ipfs_node_free(new_node);
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}
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// persist the main node
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ipfs_merkledag_add(parent_node, fs_repo, &bytes_written);
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ipfs_merkledag_add(parent_node, fs_repo, bytes_written);
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*bytes_written += size_of_node;
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} // add to parent vs add as link
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return bytes_read;
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@ -178,7 +182,7 @@ int ipfs_import_print_node_results(const struct Node* node, const char* file_nam
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* @param parent_node the root node (has links to others in case this is a large file and is split)
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* @returns true(1) on success
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*/
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int ipfs_import_file(const char* fileName, struct Node** parent_node, struct FSRepo* fs_repo) {
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int ipfs_import_file(const char* root_dir, const char* fileName, struct Node** parent_node, struct FSRepo* fs_repo, size_t* bytes_written) {
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/**
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* NOTE: When this function completes, parent_node will be either:
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* 1) the complete file, in the case of a small file (<256k-ish)
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@ -198,22 +202,26 @@ int ipfs_import_file(const char* fileName, struct Node** parent_node, struct FSR
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struct FileList* next = first;
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while (next != NULL) {
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// process each file. NOTE: could be an embedded directory
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*bytes_written = 0;
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struct Node* file_node;
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size_t filename_len = strlen(fileName) + strlen(next->file_name) + 2;
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char full_file_name[filename_len];
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os_utils_filepath_join(fileName, next->file_name, full_file_name, filename_len);
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if (ipfs_import_file(full_file_name, &file_node, fs_repo) == 0) {
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if (ipfs_import_file(root_dir, full_file_name, &file_node, fs_repo, bytes_written) == 0) {
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ipfs_node_free(*parent_node);
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os_utils_free_file_list(first);
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return 0;
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}
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// TODO: probably need to display what was imported
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ipfs_import_print_node_results(file_node, next->file_name);
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int len = strlen(next->file_name) + strlen(root_dir) + 2;
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char full_path[len];
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os_utils_filepath_join(root_dir, next->file_name, full_path, len);
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ipfs_import_print_node_results(file_node, full_path);
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// TODO: Determine what needs to be done if this file_node is a file, a split file, or a directory
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// Create link from file_node
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struct NodeLink* file_node_link;
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ipfs_node_link_create(next->file_name, file_node->hash, file_node->hash_size, &file_node_link);
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file_node_link->t_size = file_node->data_size;
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file_node_link->t_size = *bytes_written;
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// add file_node as link to parent_node
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ipfs_node_add_link(*parent_node, file_node_link);
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// clean up file_node
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@ -233,7 +241,9 @@ int ipfs_import_file(const char* fileName, struct Node** parent_node, struct FSR
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// add all nodes (will be called multiple times for large files)
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while ( bytes_read == MAX_DATA_SIZE) {
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bytes_read = ipfs_import_chunk(file, *parent_node, fs_repo, &total_size);
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size_t written = 0;
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bytes_read = ipfs_import_chunk(file, *parent_node, fs_repo, &total_size, &written);
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*bytes_written += written;
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}
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fclose(file);
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}
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@ -290,9 +300,13 @@ int ipfs_import_files(int argc, char** argv) {
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struct FileList* current = first;
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while (current != NULL) {
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struct Node* directory_entry = NULL;
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retVal = ipfs_import_file(current->file_name, &directory_entry, fs_repo);
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char* path;
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char* filename;
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os_utils_split_filename(current->file_name, &path, &filename);
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size_t bytes_written = 0;
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retVal = ipfs_import_file(filename, current->file_name, &directory_entry, fs_repo, &bytes_written);
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ipfs_import_print_node_results(directory_entry, current->file_name);
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ipfs_import_print_node_results(directory_entry, filename);
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// cleanup
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ipfs_node_free(directory_entry);
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current = current->next;
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@ -10,7 +10,7 @@
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* @param node the root node (could have links to others)
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* @returns true(1) on success
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*/
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int ipfs_import_file(const char* fileName, struct Node** node, struct FSRepo* fs_repo);
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int ipfs_import_file(const char* root, const char* fileName, struct Node** node, struct FSRepo* fs_repo, size_t* bytes_written);
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/**
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* called from the command line
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@ -16,10 +16,30 @@ struct FileList {
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struct FileList* next;
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};
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/**
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* Builds a list of files within a directory
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* @param path the path to examine
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* @returns a FileList struct of the first file
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*/
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struct FileList* os_utils_list_directory(const char* path);
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// frees memory used by creating a FileList linked list
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/**
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* Cleans up memory used by a FileList struct
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* @param first the struct to free
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* @returns true(1)
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*/
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int os_utils_free_file_list(struct FileList* first);
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/**
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* Split the filename from the path
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* @param in the full path and filename
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* @param path only the path part
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* @param filename only the file name
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* @returns true(1)
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*/
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int os_utils_split_filename(const char* in, char** path, char** filename);
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/**
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* get an environment varible from the os
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* @param variable the variable to look for
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@ -1,5 +1,11 @@
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CC = gcc
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CFLAGS = -O0 -I../include -I../../c-libp2p/include -Wall
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ifdef DEBUG
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CFLAGS += -g3
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endif
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LFLAGS =
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DEPS =
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OBJS = utils.o
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13
os/utils.c
13
os/utils.c
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@ -64,6 +64,19 @@ int os_utils_is_directory(const char* file_name) {
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return S_ISDIR(path_stat.st_mode) != 0;
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}
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int os_utils_split_filename(const char* in, char** path, char** filename) {
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int len = strlen(in);
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char* pos = strrchr(in, '/');
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pos++;
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*path = (char*)malloc((pos - in) + 1);
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*filename = (char*)malloc(len - (pos-in) + 1);
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strncpy(*path, in, pos-in-1);
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(*path)[pos-in-1] = 0;
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strcpy(*filename, pos);
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(*filename)[len - (pos-in)] = 0;
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return 1;
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}
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struct FileList* os_utils_list_directory(const char* path) {
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DIR* dp;
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struct dirent *ep;
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@ -45,7 +45,8 @@ int test_import_large_file() {
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// write to ipfs
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struct Node* write_node;
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if (ipfs_import_file(fileName, &write_node, fs_repo) == 0) {
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size_t bytes_written;
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if (ipfs_import_file("/tmp", fileName, &write_node, fs_repo, &bytes_written) == 0) {
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ipfs_repo_fsrepo_free(fs_repo);
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return 0;
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}
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@ -193,7 +194,8 @@ int test_import_small_file() {
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// write to ipfs
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struct Node* write_node;
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if (ipfs_import_file(fileName, &write_node, fs_repo) == 0) {
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size_t bytes_written;
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if (ipfs_import_file("/tmp", fileName, &write_node, fs_repo, &bytes_written) == 0) {
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ipfs_repo_fsrepo_free(fs_repo);
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return 0;
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}
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