Parsing every file in submap recursively to output folder whilst maintaining relativity - windows

Question

I'm using the following batch code to convert all files in a certain directory if the target file doesn't already exist however I'm stuck at getting this to run through every submap and file within that (and keep the output relative with that submap)
So I currently use this:
for %%f in (input/textures/*.*) do ( IF NOT EXIST "ouput/textures/%%~nf.dds" (
"bin/ThempImageParser.exe" "input/textures/%%f" "ouput/textures/%%~nf.dds"
)
)
This works perfectly for a single folder (as was intended), it takes all the files in that specific folder, and passes them as arguments to my executable, which then outputs the file on the path of the second argument.
However this also contains a flaw (this is an additional problem though..) as it does not work if the output -folder- does not exist, so if possible I'd also want it to create the folder if need be.
I've found some batch documentation (I really don't have much experience with Batch) showing me a command called FORFILES and the /R parameter, however I couldn't adjust this so it'd keep the relative paths for the output too, it'd require string manipulation and I have no clue on how to do that.
So the result I'm after is something like this, it takes any file deeper than "input/textures/ for example:
input/textures/some/very/deep/submap/why/does/it/go/on/myfile.anyExtension
it should then take that file (and relative path) and basically change "input" with "output" and replace the file extension with .dds like this:
ouput/textures/some/very/deep/submap/why/does/it/go/on/myfile.dds
and pass those two strings to my executable.

Answer 1

#ECHO Off
SETLOCAL ENABLEDELAYEDEXPANSION
SET "sourcedir=U:\sourcedir\t w o"
SET "destdir=U:\destdir\wherever\something"
FOR /f "delims=" %%a IN ('xcopy /y /L /s "%sourcedir%\*"') DO (
SET "destfile=%%a"
SET "destfile=!destfile:*%sourcedir%=%destdir%!"
IF /i "%%a" neq "!destfile!" (
FOR %%m IN ("!destfile!") DO IF NOT EXIST "%%~dpm%%~na.dds" (
ECHO MD "%%~dpm"
ECHO "bin\ThempImageParser.exe" "%%a" "%%~dpm%%~na.dds"
)
)
)
GOTO :EOF
You would need to change the settings of sourcedir and destdir to suit your circumstances.
First, perform an xcopy with the /L option to list-only the individual fullnames of files that would be copied by the xcopy.
Assign each name found from %%a to destfile, then remove all characters before the source-directoryname from that filename, and replace that string with the destination directoryname.
This will yield the destination name for the file (with the original extension). The only exception will be the very last output line, which is a count-of-files report. Since this line will not contain the source directoryname, the replacement will not take place, so %%a will be the same as !destfile! - so we eliminate that.
Now assign the destination filename to a metavariable so we can select its various parts, and if the filename made from the destination drive and pathname, the name part of the original file and .dds does not exist, then make the destination directoryname and execute the imageparser, providing the desired output filename.
Note that these last two are ECHOed instead of being executed for testing purposes. Remove the ECHOes to actually perform the command.
Note that / is a switch-indicator, \ is a directory-separator.
Note that MD will report an error if the directory already exists. Append 2>nul to the end of the md command to suppress that error message.