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# This hook executes the following tasks:
# - rewrites python shebangs with the corresponding python version
hook() {
local pyver= shebang= off=
if [ -d ${PKGDESTDIR}/usr/lib/python* ]; then
pyver="$(find ${PKGDESTDIR}/usr/lib/python* -prune -type d | grep -o '[[:digit:]]\.[[:digit:]]\+$')"
fi
if [ -n "$python_version" ]; then
pyver="$python_version"
fi
if [ -n "$pyver" ]; then
default_shebang="#!/usr/bin/python${pyver%.*}"
fi
grep -rlIZ -m1 '^#!.*python' "${PKGDESTDIR}" |
while IFS= read -r -d '' file; do
[ ! -s "$file" ] && continue
pyinterp=$(sed -n -E -e 2q -e 's@^#!.*([[:space:]]|/)(python([0-9](\.[0-9]+)?)?)([[:space:]]+.*|$)@\2@p' "$file")
[ -z "$pyinterp" ] && continue
pyver=${pyinterp#python}
if [ -n "$pyver" ]; then
shebang="#!/usr/bin/python${pyver%.*}"
else
shebang="$default_shebang"
fi
basefile=${file#$PKGDESTDIR}
[ -n "$shebang" ] || msg_error "python_version missing in template: unable to convert shebang in $basefile\n"
echo " Shebang converted to '$shebang': $basefile"
sed -i "1s@.*python.*@${shebang}@" -- "$file"
done
}
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