BASH: How to resolve paths beginning with file://, sftp://, davs:// - bash

Question

I'm writing a bulk rename program to use with nemo, but nemo passes paths beginning with file://, sftp://, davs://. For example:
file:///home/jkoop/my-file.txt
sftp://my-nas/my-file.txt
davs://my-nas/my-file.txt
How can I resolve these paths to something like:
/home/jkoop/my-file.txt
/run/user/1000/gvfs/sftp=joek#my-nas/my-file.txt
/run/user/1000/davs=jkoop#my-nas/my-file.txt
This has been a difficult question to Google. Perhaps something like realpath could help?

Answer 1

You need to do conditional pattern substitution. It is my experience that awk is best for that in both flexibility in defining the patterns to match and specifying the patterns that need to be substituted.
The following fits your example:
#!/bin/sh
echo "file:///home/jkoop/my-file.txt
sftp://my-nas/my-file.txt
davs://my-nas/my-file.txt
abcdefg://unknown/random/extraneous.txt" |
while [ true ]
do
read nemopath
if [ -z "${nemopath}" ] ; then exit 0 ; fi
fullpath=`echo "${nemopath}" |
awk -v htPref="/" \
-v ftpPref="/run/user/1000/gvfs/sftp=joek#" \
-v davPref="/run/user/1000/davs=jkoop#" '{
n=index( $0, "file:///" ) ;
if( n == 1 ){
filepath=sprintf("%s%s", htPref, substr($0,9) ) ;
}else{
n=index($0,"sftp://")
if( n == 1 ){
filepath=sprintf("%s%s", ftpPref, substr($0,8) ) ;
}else{
n=index($0,"davs://")
if( n == 1 ){
filepath=sprintf("%s%s", davPref, substr($0,8) ) ;
}else{
filepath=sprintf("#NOMATCH|%s|", $0 ) ;
} ;
} ;
} ;
}END{
print filepath ;
}' `
take_action "${nemopath}" "${fullpath}
done
That provides the following output (which could be directed to a log file):
/home/jkoop/my-file.txt
/run/user/1000/gvfs/sftp=joek#my-nas/my-file.txt
/run/user/1000/davs=jkoop#my-nas/my-file.txt
#NOMATCH|abcdefg://unknown/random/extraneous.txt|