JsVar *jswrap_fs_readdir(JsVar *path) {
JsVar *arr = 0; // undefined unless we can open card
char pathStr[JS_DIR_BUF_SIZE] = "";
if (!jsvIsUndefined(path))
jsvGetString(path, pathStr, JS_DIR_BUF_SIZE);
#ifdef LINUX
if (!pathStr[0]) strcpy(pathStr, "."); // deal with empty readdir
#endif
FRESULT res = 0;
if (jsfsInit()) {
#ifndef LINUX
DIR dirs;
if ((res=f_opendir(&dirs, pathStr)) == FR_OK) {
FILINFO Finfo;
#if _USE_LFN!=0
char lfnBuf[_MAX_LFN+1];
Finfo.lfname = lfnBuf;
Finfo.lfsize = sizeof(lfnBuf);
#endif
#else
DIR *dir = opendir(pathStr);
if(dir) {
#endif
arr = jsvNewWithFlags(JSV_ARRAY);
if (arr) { // could be out of memory
#ifndef LINUX
while (((res=f_readdir(&dirs, &Finfo)) == FR_OK) && Finfo.fname[0]) {
char *fn = GET_FILENAME(Finfo);
#else
struct dirent *pDir=NULL;
while((pDir = readdir(dir)) != NULL) {
char *fn = (*pDir).d_name;
#endif
JsVar *fnVar = jsvNewFromString(fn);
if (fnVar) {// out of memory?
jsvArrayPush(arr, fnVar);
jsvUnLock(fnVar);
}
}
}
#ifdef LINUX
closedir(dir);
#endif
}
}
if (res) jsfsReportError("Unable to list files", res);
return arr;
}
/*JSON{ "type" : "staticmethod", "class" : "fs", "name" : "writeFile",
"generate_full" : " jswrap_fs_writeOrAppendFile(path, data, false)",
"description" : [ "Write the data to the given file", "NOTE: Espruino does not yet support Async file IO, so this function behaves like the 'Sync' version." ],
"params" : [ [ "path", "JsVar", "The path of the file to write" ],
[ "data", "JsVar", "The data to write to the file" ] ],
"return" : [ "bool", "True on success, false on failure" ]
}*/
/*JSON{ "type" : "staticmethod", "class" : "fs", "name" : "writeFileSync", "ifndef" : "SAVE_ON_FLASH",
"generate_full" : " jswrap_fs_writeOrAppendFile(path, data, false)",
"description" : [ "Write the data to the given file" ],
"params" : [ [ "path", "JsVar", "The path of the file to write" ],
[ "data", "JsVar", "The data to write to the file" ] ],
"return" : [ "bool", "True on success, false on failure" ]
}*/
/*JSON{ "type" : "staticmethod", "class" : "fs", "name" : "appendFile",
"generate_full" : " jswrap_fs_writeOrAppendFile(path, data, true)",
"description" : [ "Append the data to the given file, created a new file if it doesn't exist", "NOTE: Espruino does not yet support Async file IO, so this function behaves like the 'Sync' version." ],
"params" : [ [ "path", "JsVar", "The path of the file to write" ],
[ "data", "JsVar", "The data to write to the file" ] ],
"return" : [ "bool", "True on success, false on failure" ]
}*/
/*JSON{ "type" : "staticmethod", "class" : "fs", "name" : "appendFileSync", "ifndef" : "SAVE_ON_FLASH",
"generate_full" : "jswrap_fs_writeOrAppendFile(path, data, true)",
"description" : [ "Append the data to the given file, created a new file if it doesn't exist" ],
"params" : [ [ "path", "JsVar", "The path of the file to write" ],
[ "data", "JsVar", "The data to write to the file" ] ],
"return" : [ "bool", "True on success, false on failure" ]
}*/
bool jswrap_fs_writeOrAppendFile(JsVar *path, JsVar *data, bool append) {
JsVar *fMode = jsvNewFromString(append ? "a" : "w");
JsVar *f = jswrap_E_openFile(path, fMode);
jsvUnLock(fMode);
if (!f) return 0;
size_t amt = jswrap_file_write(f, data);
jswrap_file_close(f);
jsvUnLock(f);
return amt>0;
}
/*JSON{ "type" : "staticmethod", "class" : "fs", "name" : "readFile",
"generate" : "jswrap_fs_readFile",
"description" : [ "Read all data from a file and return as a string", "NOTE: Espruino does not yet support Async file IO, so this function behaves like the 'Sync' version." ],
"params" : [ [ "path", "JsVar", "The path of the file to read" ] ],
"return" : [ "JsVar", "A string containing the contents of the file (or undefined if the file doesn't exist)" ]
}*/
/*JSON{ "type" : "staticmethod", "class" : "fs", "name" : "readFileSync", "ifndef" : "SAVE_ON_FLASH",
"generate" : "jswrap_fs_readFile",
"description" : [ "Read all data from a file and return as a string.","**Note:** The size of files you can load using this method is limited by the amount of available RAM. To read files a bit at a time, see the `File` class." ],
"params" : [ [ "path", "JsVar", "The path of the file to read" ] ],
"return" : [ "JsVar", "A string containing the contents of the file (or undefined if the file doesn't exist)" ]
}*/
JsVar *jswrap_fs_readFile(JsVar *path) {
JsVar *fMode = jsvNewFromString("r");
JsVar *f = jswrap_E_openFile(path, fMode);
jsvUnLock(fMode);
if (!f) return 0;
JsVar *buffer = jswrap_file_read(f, 0x7FFFFFFF);
jswrap_file_close(f);
jsvUnLock(f);
return buffer;
}
JsVar *wrap_fat_readdir(JsVar *path) {
JsVar *arr = 0; // undefined unless we can open card
char pathStr[JS_DIR_BUF_SIZE] = "";
if (!jsvIsUndefined(path))
jsvGetString(path, pathStr, JS_DIR_BUF_SIZE);
#ifdef LINUX
if (!pathStr[0]) strcpy(pathStr, "."); // deal with empty readdir
#endif
FRESULT res = 0;
if (jsfsInit()) {
#ifndef LINUX
DIR dirs;
if ((res=f_opendir(&dirs, pathStr)) == FR_OK) {
char lfnBuf[_MAX_LFN+1];
FILINFO Finfo;
Finfo.lfname = lfnBuf;
Finfo.lfsize = sizeof(lfnBuf);
#else
DIR *dir = opendir(pathStr);
if(dir) {
#endif
arr = jsvNewWithFlags(JSV_ARRAY);
if (arr) { // could be out of memory
#ifndef LINUX
while (((res=f_readdir(&dirs, &Finfo)) == FR_OK) && Finfo.fname[0]) {
char *fn = GET_FILENAME(Finfo);
#else
struct dirent *pDir=NULL;
while((pDir = readdir(dir)) != NULL) {
char *fn = (*pDir).d_name;
#endif
JsVar *fnVar = jsvNewFromString(fn);
if (fnVar) // out of memory?
jsvArrayPush(arr, fnVar);
}
}
#ifdef LINUX
closedir(dir);
#endif
}
}
if (res) jsfsReportError("Unable to list files", res);
return arr;
}
/*JSON{ "type" : "staticmethod", "class" : "fs", "name" : "writeFile",
"generate" : "wrap_fat_writeFile",
"description" : [ "Write the data to the given file", "NOTE: Espruino does not yet support Async file IO, so this function behaves like the 'Sync' version." ],
"params" : [ [ "path", "JsVar", "The path of the file to write" ],
[ "data", "JsVar", "The data to write to the file" ] ]
}*/
/*JSON{ "type" : "staticmethod", "class" : "fs", "name" : "writeFileSync", "ifndef" : "SAVE_ON_FLASH",
"generate" : "wrap_fat_writeFile",
"description" : [ "Write the data to the given file" ],
"params" : [ [ "path", "JsVar", "The path of the file to write" ],
[ "data", "JsVar", "The data to write to the file" ] ]
}*/
/*JSON{ "type" : "staticmethod", "class" : "fs", "name" : "appendFile",
"generate" : "wrap_fat_appendFile",
"description" : [ "Append the data to the given file, created a new file if it doesn't exist", "NOTE: Espruino does not yet support Async file IO, so this function behaves like the 'Sync' version." ],
"params" : [ [ "path", "JsVar", "The path of the file to write" ],
[ "data", "JsVar", "The data to write to the file" ] ]
}*/
/*JSON{ "type" : "staticmethod", "class" : "fs", "name" : "appendFileSync", "ifndef" : "SAVE_ON_FLASH",
"generate" : "wrap_fat_appendFile",
"description" : [ "Append the data to the given file, created a new file if it doesn't exist" ],
"params" : [ [ "path", "JsVar", "The path of the file to write" ],
[ "data", "JsVar", "The data to write to the file" ] ]
}*/
void wrap_fat_writeOrAppendFile(JsVar *path, JsVar *data, bool append) {
char pathStr[JS_DIR_BUF_SIZE] = "";
if (!jsvIsUndefined(path))
jsvGetString(path, pathStr, JS_DIR_BUF_SIZE);
FRESULT res = 0;
if (jsfsInit()) {
#ifndef LINUX
FIL file;
if ((res=f_open(&file, pathStr, FA_WRITE|(append ? FA_OPEN_ALWAYS : FA_CREATE_ALWAYS))) == FR_OK) {
if (append) {
// move to end of file to append data
f_lseek(&file, file.fsize);
// if (res != FR_OK) jsfsReportError("Unable to move to end of file", res);
}
#else
FILE *file = fopen(pathStr, append?"a":"w");
if (file) {
#endif
JsvStringIterator it;
JsVar *dataString = jsvAsString(data, false);
jsvStringIteratorNew(&it, dataString, 0);
size_t toWrite = 0;
size_t written = 0;
while (jsvStringIteratorHasChar(&it) && res==FR_OK && written==toWrite) {
// re-use pathStr buffer
toWrite = 0;
while (jsvStringIteratorHasChar(&it) && toWrite < JS_DIR_BUF_SIZE) {
pathStr[toWrite++] = jsvStringIteratorGetChar(&it);
jsvStringIteratorNext(&it);
}
#ifndef LINUX
res = f_write(&file, pathStr, toWrite, &written);
#else
written = fwrite(pathStr, 1, toWrite, file);
#endif
}
jsvStringIteratorFree(&it);
jsvUnLock(dataString);
#ifndef LINUX
f_close(&file);
#else
fclose(file);
#endif
}
}
if (res) jsfsReportError("Unable to write file", res);
}
void wrap_fat_writeFile(JsVar *path, JsVar *data) {
wrap_fat_writeOrAppendFile(path, data, false);
}
void wrap_fat_appendFile(JsVar *path, JsVar *data) {
wrap_fat_writeOrAppendFile(path, data, true);
}
