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void-packages/common/environment/setup/replace-interpreter.sh

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2024-03-29 08:12:19 +01:00
# This helper replaces shebang paths pointing to the correct ones
# as used by xbps. Multiple languages are supported:
#
# - GNU Bash
# - Perl
# - Python
#
bash_regexp=".*sh"
perl_regexp=".*perl[^[:space:]]*"
python_regexp=".*python[^[:space:]]*"
replace_interpreter() {
local lang="$1" file="$2" trsb orsb
[ -z $lang -o -z $file ] && return 1
case $lang in
bash)
orsb=$bash_regexp
trpath="/bin/bash"
;;
perl)
orsb=$perl_regexp
trpath="/usr/bin/perl"
;;
python)
orsb=$python_regexp
trpath="/usr/bin/python"
;;
*)
;;
esac
if [ -f $file ]; then
sed -i -e "1s|^#![[:space:]]*${orsb}|#!${trpath}|" $file
msg_normal "Transformed $lang script: ${file##$wrksrc}.\n"
else
msg_warn "Ignoring nonexistent $lang script: ${file##$wrksrc}.\n"
fi
}