[FEATURE REQUEST] Support for long file name in files pannel in 3.0

[bg-master]

It would be very useful to list the long file name in the files panel, available since Marlin 2.0.9 (M20 L). At the moment to identify a file I manually execute the M20 L command from the terminal panel.

[github-actions]

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[luc-github]

Is that working properly now ? before I get ???? most of the time instead of longname

[luc-github]

this is my last check : #183

[bg-master]

I can confirm that with Marlin 2.0.9.3 it works.

>>> M20
SENDING:M20
Begin file list
CAFA2B~1.GCO 17494
CA394B~1.GCO 60198
CA3603~1.GCO 900266
CALIBR~2.GCO 218439
CALIBR~4.GCO 1847167
End file list
ok P0 B0

>>> M20 L
SENDING:M20 L
Begin file list
CAFA2B~1.GCO 17494 Calibration_FirstLayerCenter.gcode
CA394B~1.GCO 60198 Calibration_ThinWallCube.gcode
CA3603~1.GCO 900266 Calibration_Retraction.gcode
CALIBR~2.GCO 218439 Calibration_StepMmCube.gcode
CALIBR~4.GCO 1847167 Calibration_Jerk.gcode
End file list
ok P0 B0

[luc-github]

does space in long name are supported ? I see you use underscore only

[bg-master]

Also spaces are supported.

>>> M20 L
SENDING:M20 L
Begin file list
CA0211~1.GCO 1248145 Calibration Retraction Pyramid Multiple.gcode
CA4FEF~1.GCO 1847167 Calibration Jerk.gcode
End file list
ok P0 B0

[luc-github]

@bg-master I am testing the M20 L

M20 L
Begin file list
CUBE.GCO 210240 CUBE.GCO
CUBE01.GCO 2089832 CUBE01.GCO
SUPPORT2.GCO 4613256 SUPPORT2.GCO
ARCHIVE/CUBE-C~1.GCO 210240 Archive/CUBE - Copy.GCO
NEWFOL~1/SUPPORT2.GCO 4613256 New folder/SUPPORT2.GCO
End file list
ok
M23 Archive/CUBE - Copy.GCO
echo:Now fresh file: Archive/CUBE
open failed, File: CUBE.
ok
M23  ARCHIVE/CUBE-C~1.GCO
echo:Now fresh file: ARCHIVE/CUBE-C~1.GCO
open failed, File: ARCHIVE.

ok

files in sub folder are listed but cannot be printed - is that normal ?
Seems consistent with comment : MarlinFirmware/Marlin#23526 (comment)
But then I do not understand why to list sub folder
I am pretty sure it was working before - am I wrong ? Do I miss something ?

[luc-github]

After more test
1 - long name path cannot work with M23

M23  '/New folder/SUPPORT2.GCO'
echo:Now fresh file: '/New
open failed, File: '.
ok

=> need to use short path for commands

2 - utF8 files cannot be printed in long name
file name listed by webUI /盧克test.GCO
but file name displayed by M20 L

TEST~1.GCO 4613256 __test.GCO

=> cannot use UTF name even the option is enabled

3 - long file name can be printed if on root if not UTF8

4 - utf8 long file name cannot be printed if on root

echo:Now fresh file: /盧克test.GCO
open failed, File: 盧克test.GCO.
ok
echo:Now fresh file: /__test.GCO
open failed, File: __test.GCO.
ok

=>Need to use shortname for UTF8 filename for commands

So long name is still only partially supported - and UTF8 is not

[luc-github]

I am working on long name support and again new bug, any subdirectories are wipped in long name
if directory is DATA at root it disapear, if it is a subdirectory of subdirectory it disapear also

Begin file list
RESOUR~1/GCODE/APPLE~1.GCO 8140 resources//Apple.gcode
RESOUR~1/GCODE/BANANA~1.GCO 7554 resources//Banana.gcode
RESOUR~1/GCODE/CHERRY~1.GCO 6465 resources//Cherry.gcode
RESOUR~1/GCODE/PEACH~1.GCO 8467 resources//Peach.gcode
RESOUR~1/GCODE/PEAR~1.GCO 6010 resources//Pear.gcode
RESOUR~1/DATA/APPLE~1.GCO 8140 resources//Apple.gcode
RESOUR~1/DATA/BANANA~1.GCO 7554 resources//Banana.gcode
RESOUR~1/DATA/CHERRY~1.GCO 6465 resources//Cherry.gcode
RESOUR~1/DATA/PEACH~1.GCO 8467 resources//Peach.gcode
RESOUR~1/DATA/PEAR~1.GCO 6010 resources//Pear.gcode
TESTCUBE.GCO 353194 TESTCUBE.GCO
TEST1.GCO 1143935 TEST1.GCO
GCODE-~1/TESTLO~1.GCO 25 gcode - Copy/testlongname.gcode
GCODE-~1/TESTCUBE.GCO 353194 gcode - Copy/TESTCUBE.GCO
DATA/TESTLO~1.GCO 25 /testlongname.gcode
DATA/TESTCUBE.GCO 353194 /TESTCUBE.GCO
End file list
ok

So long name is working if all files are in root of SD card

The web UI will be able to support old M20 format (filename / no size) , short name format + size, and long name format - but it will not do any sanity check on Marlin output checking if short path is consistent with long path, this is out of scope of webUI
so I will add a settings to allow to customize the SD list (M20) command, in that case if command M20 L output is wrong user can switch back to M20

[luc-github]

Implemented - but do not handle Marlin giving wrong output

[github-actions]

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[luc-github]

I tested latest Marlin release (2.1.1) and now M20 L seems correct

20:43:41.223 > PID-PI~1.GCO 1490254 pID-pika2.gco
20:43:41.229 > IGX-PI~1.GCO 1573255 iGX-pika2.gcode
20:43:41.231 > TINYBE~1.GCO 2014025 tinybeev1-Body.gcode
20:43:41.234 > MKSMIN~1.GCO 575334 mksmini12864v3.gco
20:43:41.237 > SUBFOL~1/TINYBE~1.GCO 2014025 SubFolder/tinybeev1-Body.gcode
20:43:41.243 > SUBFOL~1/TINYBE~2.GCO 2014025 SubFolder/tinybee Body.gcode
20:43:41.249 > NEWFOL~1/TINYBE~1.GCO 2014025 New folder/tinybee Body.gcode
20:43:41.254 > NEWFOL~1/TINYBE~2.GCO 2014025 New folder/tinybeev1-Body.gcode
20:43:41.260 > End file list
20:43:41.260 > ok
20:43:42.197 > echo:192.168.2.178
M23 SubFolder/tinybeev1-Body.gcode
20:44:03.392 > echo:Now fresh file: SubFolder/tinybeev1-Body.gcode
20:44:03.400 > File opened: tinybeev1-Body.gcode Size: 2014025
20:44:03.404 > File selected
20:44:03.404 > ok
M23 'SubFolder/tinybee Body.gcode'
20:44:36.966 > echo:Now fresh file: 'SubFolder/tinybee
20:44:36.970 > open failed, File: 'SubFolder.
20:44:36.972 > ok
M23 "SubFolder/tinybee Body.gcode"
20:44:56.087 > echo:Now fresh file: "SubFolder/tinybee
20:44:56.090 > open failed, File: "SubFolder.
20:44:56.092 > ok

But spaces are not allowed - I have check Marlin M23 code and indeed the spaces are replaced by \0 to cut the path, https://github.com/MarlinFirmware/Marlin/blob/bugfix-2.1.x/Marlin/src/gcode/sd/M23.cpp#L38
so as workaround I will do #259