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✨ Enable 'M20 L' with LONG_FILENAME_HOST_SUPPORT (#22271)

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This commit is contained in:
Mihai
2021-07-07 07:10:35 +03:00
committed by GitHub
parent 82193b0923
commit 094caadf94
3 changed files with 68 additions and 35 deletions
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92
Marlin/src/sd/cardreader.cpp
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@@ -258,54 +258,82 @@ void CardReader::selectByName(SdFile dir, const char * const match) {
}
}
//
// Recursive method to print all files within a folder in flat
// DOS 8.3 format. This style of listing is the most compatible
// with legacy hosts.
//
// This method recurses to unlimited depth and lists every
// G-code file within the given parent. If the hierarchy is
// very deep this can blow up the stack, so a 'depth' parameter
// (as with printListingJSON) would be a good addition.
//
void CardReader::printListing(SdFile parent, const char * const prepend/*=nullptr*/) {
/**
* Recursive method to print all files within a folder in flat
* DOS 8.3 format. This style of listing is the most compatible
* with legacy hosts.
*
* This method recurses to unlimited depth and lists all G-code
* files within the given parent. If the hierarchy is very deep
* this can blow up the stack, so a 'depth' parameter would be a
* good addition.
*/
void CardReader::printListing(
SdFile parent
OPTARG(LONG_FILENAME_HOST_SUPPORT, const bool includeLongNames/*=false*/)
, const char * const prepend/*=nullptr*/
OPTARG(LONG_FILENAME_HOST_SUPPORT, const char * const prependLong/*=nullptr*/)
) {
dir_t p;
while (parent.readDir(&p, longFilename) > 0) {
if (DIR_IS_SUBDIR(&p)) {
// Get the short name for the item, which we know is a folder
char dosFilename[FILENAME_LENGTH];
size_t lenPrepend = prepend ? strlen(prepend) + 1 : 0;
// Allocate enough stack space for the full path including / separator
char path[lenPrepend + FILENAME_LENGTH];
if (prepend) {
strcpy(path, prepend);
path[lenPrepend - 1] = '/';
}
char* dosFilename = path + lenPrepend;
createFilename(dosFilename, p);
// Allocate enough stack space for the full path to a folder, trailing slash, and nul
const bool prepend_is_empty = (!prepend || prepend[0] == '\0');
const int len = (prepend_is_empty ? 1 : strlen(prepend)) + strlen(dosFilename) + 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, dosFilename); // FILENAME_LENGTH characters maximum
strcat(path, "/"); // 1 character
// Serial.print(path);
// Get a new directory object using the full path
// and dive recursively into it.
SdFile child; // child.close() in destructor
if (child.open(&parent, dosFilename, O_READ))
printListing(child, path);
#if ENABLED(LONG_FILENAME_HOST_SUPPORT)
if (includeLongNames) {
size_t lenPrependLong = prependLong ? strlen(prependLong) + 1 : 0;
// Allocate enough stack space for the full long path including / separator
char pathLong[lenPrependLong + strlen(longFilename) + 1];
if (prependLong) {
strcpy(pathLong, prependLong);
pathLong[lenPrependLong - 1] = '/';
}
strcpy(pathLong + lenPrependLong, longFilename);
printListing(child, /*includeLongNames=*/true, path, pathLong);
}
else
#endif
printListing(child, path);
else {
SERIAL_ECHO_MSG(STR_SD_CANT_OPEN_SUBDIR, dosFilename);
return;
}
}
else if (is_dir_or_gcode(p)) {
if (prepend) SERIAL_ECHO(prepend);
if (prepend) {
SERIAL_ECHO(prepend);
SERIAL_CHAR('/');
}
SERIAL_ECHO(createFilename(filename, p));
SERIAL_CHAR(' ');
SERIAL_ECHOLN(p.fileSize);
#if ENABLED(LONG_FILENAME_HOST_SUPPORT)
if (!includeLongNames)
#endif
SERIAL_ECHOLN(p.fileSize);
#if ENABLED(LONG_FILENAME_HOST_SUPPORT)
else {
SERIAL_ECHO(p.fileSize);
SERIAL_CHAR(' ');
if (prependLong) {
SERIAL_ECHO(prependLong);
SERIAL_CHAR('/');
}
SERIAL_ECHOLN(longFilename[0] ? longFilename : "???");
}
#endif
}
}
}
@@ -313,10 +341,10 @@ void CardReader::printListing(SdFile parent, const char * const prepend/*=nullpt
//
// List all files on the SD card
//
void CardReader::ls() {
void CardReader::ls(TERN_(LONG_FILENAME_HOST_SUPPORT, bool includeLongNames/*=false*/)) {
if (flag.mounted) {
root.rewind();
printListing(root);
printListing(root OPTARG(LONG_FILENAME_HOST_SUPPORT, includeLongNames));
}
}