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@ -40,24 +40,43 @@ char *createFilename(char *buffer, const dir_t &p) { //buffer > 12characters
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return buffer;
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return buffer;
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}
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}
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/**
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* Dive into a folder and recurse depth-first to perform a pre-set operation lsAction:
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* LS_Count - Add +1 to nrFiles for every file within the parent
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* LS_GetFilename - Get the filename of the file indexed by nrFiles
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* LS_SerialPrint - Print the full path of each file to serial output
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*/
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void CardReader::lsDive(const char *prepend, SdFile parent, const char * const match/*=NULL*/) {
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void CardReader::lsDive(const char *prepend, SdFile parent, const char * const match/*=NULL*/) {
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dir_t p;
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dir_t p;
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uint8_t cnt = 0;
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uint8_t cnt = 0;
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// Read the next entry from a directory
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while (parent.readDir(p, longFilename) > 0) {
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while (parent.readDir(p, longFilename) > 0) {
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if (DIR_IS_SUBDIR(&p) && lsAction != LS_Count && lsAction != LS_GetFilename) { // hence LS_SerialPrint
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char path[FILENAME_LENGTH*2];
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// If the entry is a directory and the action is LS_SerialPrint
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if (DIR_IS_SUBDIR(&p) && lsAction != LS_Count && lsAction != LS_GetFilename) {
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// Allocate enough stack space for the full path to a folder
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int len = strlen(prepend) + FILENAME_LENGTH + 1;
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char path[len];
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// Get the short name for the item, which we know is a folder
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char lfilename[FILENAME_LENGTH];
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char lfilename[FILENAME_LENGTH];
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createFilename(lfilename, p);
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createFilename(lfilename, p);
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path[0] = 0;
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// Append the FOLDERNAME12/ to the passed string.
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if (prepend[0] == 0) strcat(path, "/"); //avoid leading / if already in prepend
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// It contains the full path to the "parent" argument.
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// We now have the full path to the item in this folder.
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path[0] = '\0';
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if (prepend[0] == '\0') strcat(path, "/"); // a root slash if prepend is empty
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strcat(path, prepend);
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strcat(path, prepend);
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strcat(path, lfilename);
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strcat(path, lfilename);
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strcat(path, "/");
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strcat(path, "/");
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// Serial.print(path);
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// Serial.print(path);
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// Get a new directory object using the full path
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// and dive recursively into it.
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SdFile dir;
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SdFile dir;
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if (!dir.open(parent, lfilename, O_READ)) {
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if (!dir.open(parent, lfilename, O_READ)) {
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if (lsAction == LS_SerialPrint) {
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if (lsAction == LS_SerialPrint) {
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@ -67,14 +86,13 @@ void CardReader::lsDive(const char *prepend, SdFile parent, const char * const m
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}
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}
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}
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}
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lsDive(path, dir);
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lsDive(path, dir);
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//close done automatically by destructor of SdFile
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// close() is done automatically by destructor of SdFile
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}
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}
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else {
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else {
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char pn0 = p.name[0];
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char pn0 = p.name[0];
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if (pn0 == DIR_NAME_FREE) break;
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if (pn0 == DIR_NAME_FREE) break;
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if (pn0 == DIR_NAME_DELETED || pn0 == '.') continue;
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if (pn0 == DIR_NAME_DELETED || pn0 == '.') continue;
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char lf0 = longFilename[0];
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if (longFilename[0] == '.') continue;
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if (lf0 == '.') continue;
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if (!DIR_IS_FILE_OR_SUBDIR(&p)) continue;
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if (!DIR_IS_FILE_OR_SUBDIR(&p)) continue;
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@ -82,24 +100,27 @@ void CardReader::lsDive(const char *prepend, SdFile parent, const char * const m
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if (!filenameIsDir && (p.name[8] != 'G' || p.name[9] == '~')) continue;
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if (!filenameIsDir && (p.name[8] != 'G' || p.name[9] == '~')) continue;
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//if (cnt++ != nr) continue;
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switch (lsAction) {
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case LS_Count:
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nrFiles++;
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break;
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case LS_SerialPrint:
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createFilename(filename, p);
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createFilename(filename, p);
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if (lsAction == LS_SerialPrint) {
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SERIAL_PROTOCOL(prepend);
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SERIAL_PROTOCOL(prepend);
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SERIAL_PROTOCOLLN(filename);
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SERIAL_PROTOCOLLN(filename);
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}
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break;
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else if (lsAction == LS_Count) {
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case LS_GetFilename:
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nrFiles++;
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createFilename(filename, p);
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}
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else if (lsAction == LS_GetFilename) {
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if (match != NULL) {
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if (match != NULL) {
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if (strcasecmp(match, filename) == 0) return;
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if (strcasecmp(match, filename) == 0) return;
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}
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}
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else if (cnt == nrFiles) return;
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else if (cnt == nrFiles) return;
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cnt++;
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cnt++;
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break;
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}
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}
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}
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}
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}
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} // while readDir
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}
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}
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void CardReader::ls() {
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void CardReader::ls() {
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