/**
* Get the name of a file in the current directory by index
*/
void CardReader::getfilename(uint16_t nr, const char * const match/*=NULL*/) {
curDir = &workDir;
lsAction = LS_GetFilename;
nrFiles = nr;
curDir->rewind();
lsDive("", *curDir, match);
}
uint16_t CardReader::getnrfilenames() {
curDir = &workDir;
lsAction = LS_Count;
nrFiles = 0;
curDir->rewind();
lsDive("", *curDir);
return nrFiles;
}
void CardReader::getfilename(const uint8_t nr)
{
curDir=&workDir;
lsAction=LS_GetFilename;
nrFiles=nr;
curDir->rewind();
lsDive("",*curDir);
}
void CardReader::ls()
{
lsAction=LS_SerialPrint;
if(lsAction==LS_Count)
nrFiles=0;
root.rewind();
lsDive("",root);
}
/**
* Get a long pretty path based on a DOS 8.3 path
*/
void CardReader::printLongPath(char *path) {
lsAction = LS_GetFilename;
int i, pathLen = strlen(path);
// SERIAL_ECHOPGM("Full Path: "); SERIAL_ECHOLN(path);
// Zero out slashes to make segments
for (i = 0; i < pathLen; i++) if (path[i] == '/') path[i] = '\0';
SdFile diveDir = root; // start from the root for segment 1
for (i = 0; i < pathLen;) {
if (path[i] == '\0') i++; // move past a single nul
char *segment = &path[i]; // The segment after most slashes
// If a segment is empty (extra-slash) then exit
if (!*segment) break;
// Go to the next segment
while (path[++i]) { }
// SERIAL_ECHOPGM("Looking for segment: "); SERIAL_ECHOLN(segment);
// Find the item, setting the long filename
diveDir.rewind();
lsDive("", diveDir, segment);
// Print /LongNamePart to serial output
SERIAL_PROTOCOLCHAR('/');
SERIAL_PROTOCOL(longFilename[0] ? longFilename : "???");
// If the filename was printed then that's it
if (!filenameIsDir) break;
// SERIAL_ECHOPGM("Opening dir: "); SERIAL_ECHOLN(segment);
// Open the sub-item as the new dive parent
SdFile dir;
if (!dir.open(diveDir, segment, O_READ)) {
SERIAL_EOL;
SERIAL_ECHO_START;
SERIAL_ECHOPGM(MSG_SD_CANT_OPEN_SUBDIR);
SERIAL_ECHO(segment);
break;
}
diveDir.close();
diveDir = dir;
} // while i<pathLen
SERIAL_EOL;
}
void CardReader::lsDive(const char *prepend,SdFile parent)
{
dir_t p;
uint8_t cnt=0;
while (parent.readDir(p, longFilename) > 0)
{
if( DIR_IS_SUBDIR(&p) && lsAction!=LS_Count && lsAction!=LS_GetFilename) // hence LS_SerialPrint
{
char path[13*2];
char lfilename[13];
createFilename(lfilename,p);
path[0]=0;
if(strlen(prepend)==0) //avoid leading / if already in prepend
{
strcat(path,"/");
}
strcat(path,prepend);
strcat(path,lfilename);
strcat(path,"/");
//Serial.print(path);
SdFile dir;
if(!dir.open(parent,lfilename, O_READ))
{
if(lsAction==LS_SerialPrint)
{
SERIAL_ECHO_START;
SERIAL_ECHOLN(MSG_SD_CANT_OPEN_SUBDIR);
SERIAL_ECHOLN(lfilename);
}
}
lsDive(path,dir);
//close done automatically by destructor of SdFile
}
else
{
if (p.name[0] == DIR_NAME_FREE) break;
if (p.name[0] == DIR_NAME_DELETED || p.name[0] == '.'|| p.name[0] == '_') continue;
if ( p.name[0] == '.')
{
if ( p.name[1] != '.')
continue;
}
if (!DIR_IS_FILE_OR_SUBDIR(&p)) continue;
filenameIsDir=DIR_IS_SUBDIR(&p);
if(!filenameIsDir)
{
if(p.name[8]!='G') continue;
if(p.name[9]=='~') continue;
}
//if(cnt++!=nr) continue;
createFilename(filename,p);
if(lsAction==LS_SerialPrint)
{
SERIAL_PROTOCOL(prepend);
SERIAL_PROTOCOLLN(filename);
}
else if(lsAction==LS_Count)
{
nrFiles++;
}
else if(lsAction==LS_GetFilename)
{
if(cnt==nrFiles)
return;
cnt++;
}
}
}
}
void CardReader::ls() {
lsAction = LS_SerialPrint;
root.rewind();
lsDive("", root);
}
/**
* Dive into a folder and recurse depth-first to perform a pre-set operation lsAction:
* LS_Count - Add +1 to nrFiles for every file within the parent
* LS_GetFilename - Get the filename of the file indexed by nrFiles
* LS_SerialPrint - Print the full path of each file to serial output
*/
void CardReader::lsDive(const char *prepend, SdFile parent, const char * const match/*=NULL*/) {
dir_t p;
uint8_t cnt = 0;
// Read the next entry from a directory
while (parent.readDir(p, longFilename) > 0) {
// If the entry is a directory and the action is LS_SerialPrint
if (DIR_IS_SUBDIR(&p) && lsAction != LS_Count && lsAction != LS_GetFilename) {
// Get the short name for the item, which we know is a folder
char lfilename[FILENAME_LENGTH];
createFilename(lfilename, p);
// Allocate enough stack space for the full path to a folder, trailing slash, and nul
boolean prepend_is_empty = (prepend[0] == '\0');
int len = (prepend_is_empty ? 1 : strlen(prepend)) + strlen(lfilename) + 1 + 1;
char path[len];
// Append the FOLDERNAME12/ to the passed string.
// It contains the full path to the "parent" argument.
// We now have the full path to the item in this folder.
strcpy(path, prepend_is_empty ? "/" : prepend); // root slash if prepend is empty
strcat(path, lfilename); // FILENAME_LENGTH-1 characters maximum
strcat(path, "/"); // 1 character
// Serial.print(path);
// Get a new directory object using the full path
// and dive recursively into it.
SdFile dir;
if (!dir.open(parent, lfilename, O_READ)) {
if (lsAction == LS_SerialPrint) {
ECHO_LMV(ER, MSG_SD_CANT_OPEN_SUBDIR, lfilename);
}
}
lsDive(path, dir);
// close() is done automatically by destructor of SdFile
}
else {
char pn0 = p.name[0];
if (pn0 == DIR_NAME_FREE) break;
if (pn0 == DIR_NAME_DELETED || pn0 == '.') continue;
if (longFilename[0] == '.') continue;
if (!DIR_IS_FILE_OR_SUBDIR(&p)) continue;
filenameIsDir = DIR_IS_SUBDIR(&p);
if (!filenameIsDir && (p.name[8] != 'G' || p.name[9] == '~')) continue;
switch (lsAction) {
case LS_Count:
nrFiles++;
break;
case LS_SerialPrint:
createFilename(filename, p);
ECHO_V(prepend);
ECHO_EV(filename);
break;
case LS_GetFilename:
createFilename(filename, p);
if (match != NULL) {
if (strcasecmp(match, filename) == 0) return;
}
else if (cnt == nrFiles) return;
cnt++;
break;
}
}
} // while readDir
}
