Inherited environment variables don’t always get passed down correctly

[Rinzwind]

The Bash script given below gives a few examples in which OSSUnixSubprocess doesn’t pass down inherited environment variables as expected, the output is:

$ ./test.sh 
OK (\x41\x42\x43):
0000000 41 42 43                                       
0000000 41 42 43                                       

Output does not match (\x09\x31\x09\x32\x09):
0000000 09 31 09 32 09                                 
0000000 31 09 32                                       

Output does not match (\x46\x72\x61\x6E\xC3\xA7\x61\x69\x73):
0000000 46 72 61 6e c3 a7 61 69 73                     
0000000 46 72 61 6e e7 61 69 73                        

Error in Pharo (\x46\x72\x61\x6E\xE7\x61\x69\x73):
0000000 46 72 61 6e e7 61 69 73                        
ZnInvalidUTF8: Illegal continuation byte for utf-8 encoding

Error in Pharo (\xF0\x9F\x92\xA3):
0000000 f0 9f 92 a3                                    
Instance of WideString did not understand #tfPointerAddress

The script ‘test.sh’ (you will probably need to modify ‘pharovm’ and ‘pharoimage’):

#!/bin/bash

pharovm=~/'Documents/Pharo/vms/110-x64/Pharo.app/Contents/MacOS/Pharo'
pharoimage=~/'Documents/Pharo/images/Pharo 11.0 - 64bit (development version, latest)/Pharo 11.0 - 64bit (development version, latest).image'
script="
	[
		Metacello new
			baseline: 'OSSubprocess';
			repository: 'github://pharo-contributions/OSSubprocess:master/repository';
			load
	] on: MetacelloNotification , NewUndeclaredWarning do: [ :notification |
		notification resume ].
	(Smalltalk at: #OSSUnixSubprocess) new
		shell: '/bin/bash' command: 'echo -n \"\$TEST\" | hexdump';
		runAndWait.
	nil"

run() {
	printf '%s\n' "$1 ($2):"
	export TEST="$(printf %b "$2")"
	/bin/bash -c 'echo -n "$TEST" | hexdump' | head -n 1
	"${pharovm}" --headless "${pharoimage}" eval "${script}" 2>&1 | head -n 1
	tput sgr0
	printf '\n'
}

run 'OK' '\x41\x42\x43'
run 'Output does not match' '\x09\x31\x09\x32\x09'
run 'Output does not match' '\x46\x72\x61\x6E\xC3\xA7\x61\x69\x73'
run 'Error in Pharo' '\x46\x72\x61\x6E\xE7\x61\x69\x73'
run 'Error in Pharo' '\xF0\x9F\x92\xA3'