blob: b363034c9d54fbd91e5a37b2d30e76b191538688 (
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|
#!/bin/bash
set -euf -o pipefail
top="#TOP#"
shadow_top="#SHADOW_TOP#"
orig_ar="#ORIG_TOOL#"
shadow_ar="#SHADOW_TOOL#"
errors=()
warnings=()
skips=()
orig_out=()
shadow_out=()
orig_input=()
shadow_input=()
orig_opts=()
shadow_opts=()
dump_log ()
{
(
set +u
IFS=";"
cat <<EOF
errors=(${errors[@]})
warnings=(${warnings[@]})
skips=(${skips[@]})
orig_out=(${orig_out[@]})
shadow_out=(${shadow_out[@]})
orig_input=(${orig_input[@]})
shadow_input=(${shadow_input[@]})
orig_opts=($0 ${orig_opts[@]})
shadow_opts=(${shadow_opts[@]})
EOF
)
}
report_errors () {
res=$?
if [ $res != 0 ]; then
errors+=("wrapper failed with $res")
fi
if [ ${#errors[@]} != 0 ] \
|| [ ${#warnings[@]} != 0 ] \
|| [ ${#skips[@]} != 0 ]; then
(
/usr/bin/flock -e 9
if [ ${#errors[@]} != 0 ]; then
log=$shadow_top.errors
elif [ ${#warnings[@]} != 0 ]; then
log=$shadow_top.warnings
else
log=$shadow_top.skips
fi
dump_log >>$log
) 9>>$shadow_top.lock
fi
}
trap report_errors EXIT
if [ "$#" -gt 0 ] && [ ${#orig_opts[@]} = 0 ]; then
opt="$1"
shift
orig_opts+=("$opt")
case "$opt" in
"-M") skips+=("mri-script unsupported") ;;
"c"*) ;;
*) errors+=("orig expecting: crsPD, cqsL, etc.; got: $opt") ;;
esac
else
errors+=("orig missing: action")
fi
while [ "$#" -gt 0 ]; do
opt="$1"
shift
orig_opts+=("$opt")
case "$opt" in
"-"*)
;;
*)
if [ ${#orig_out[@]} = 0 ]; then
orig_out+=("$opt")
else
orig_input+=("$opt")
fi
;;
esac
done
# orig_out is used only if command is not skipped
if [ "${#orig_out[@]}" = 0 ] && [ ${#skips[@]} = 0 ]; then
errors+=("orig missing: orig_out")
fi
print_shadow_path ()
{
local path="$1"
local prefix="${2-}"
case "$path" in
"/dev/null") echo "$path"; return ;;
"/"*) errors+=("Absolute path: $path") ;;
esac
# Check that we are under $top
case "$(pwd -P | sed -e "s#^$top##")" in
"/"*) errors+=("Running outside of $top") ;;
esac
echo "$(pwd -P)/$path" | sed -e "s#$top#$shadow_top${prefix}#"
}
generate_shadow_rsp ()
{
local orig_rsp="$1"
local shadow_rsp orig_file shadow_file
shadow_rsp=$(print_shadow_path "$orig_rsp")
mkdir -p "$(dirname "$shadow_rsp")"
rm -f "$shadow_rsp"
if [ "$(stat --format=%s "$orig_rsp")" = 0 ]; then
touch "$shadow_rsp"
else
local quote delim=""
while read -d '' -r orig_file; do
# unquote orig
case "$orig_file" in
\'*\') quote="'"; orig_file=${orig_file:1:-1} ;;
*) quote="" ;;
esac
shadow_file=$(print_shadow_path "$orig_file")
if ! [ -e "$shadow_file" ]; then
shadow_file="$orig_file"
fi
# quote shadow
echo -ne "$delim$quote$shadow_file$quote" >> "$shadow_rsp"
delim=" "
done < <({ cat "$orig_rsp"; echo; } | xargs printf '%s\0')
fi
echo "$shadow_rsp"
}
make_shadow_opts ()
{
local opt
local shadow_file
if [ "$#" -gt 0 ] && [ ${#shadow_opts[@]} = 0 ]; then
opt="$1"
shift
shadow_opts+=("$opt")
case "$opt" in
"c"*) ;;
*) errors+=("shadow expecting: crsPD, cqsL, etc.; got: $opt") ;;
esac
else
errors+=("shadow missing: action")
fi
while [ "$#" -gt 0 ]; do
opt="$1"
shift
case "$opt" in
"-"*) ;;
"@"*".rsp")
opt="${opt#@}"
if [ x"$(basename "$opt" .rsp)" = x"$(basename "${orig_out[*]}")" ]; then
opt=$(generate_shadow_rsp "$opt")
else
errors+=("RSP file $opt does not match orig_out ${orig_out[*]}")
fi
opt="@$opt"
;;
"@"*)
errors+=("Unexpected option: $opt")
opt="${opt#@}"
# shellcheck disable=SC2046
make_shadow_opts $(cat "$opt")
continue
;;
*)
shadow_file=$(print_shadow_path "$opt")
if [ ${#shadow_out[@]} = 0 ]; then
opt="$shadow_file"
shadow_out+=("$shadow_file")
elif [ -e "$shadow_file" ]; then
opt="$shadow_file"
shadow_input+=("$shadow_file")
fi
;;
esac
shadow_opts+=("$opt")
done
}
if [ ${#errors[@]} = 0 ] && [ ${#skips[@]} = 0 ]; then
make_shadow_opts "${orig_opts[@]}"
fi
if [ ${#errors[@]} = 0 ] && [ ${#skips[@]} = 0 ]; then
shadow_log=$(print_shadow_path "${orig_out[*]}" "-logs")
mkdir -p "$(dirname "${shadow_out[*]}")"
mkdir -p "$(dirname "$shadow_log")"
dump_log > "$shadow_log"
echo "$shadow_ar" "${shadow_opts[@]}" >> "$shadow_log"
"$shadow_ar" "${shadow_opts[@]}" >> "$shadow_log" 2>&1 &
shadow_res=0 && wait $! || shadow_res=$?
if [ $shadow_res != 0 ]; then
errors+=("shadow_ar failed with $shadow_res")
elif ! [ -e "${shadow_out[*]}" ]; then
errors+=("shadow_ar failed to generate output")
else
shadow_link=$(IFS=""; print_shadow_path "${orig_out[*]}" "-default-A")
mkdir -p "$(dirname "$shadow_link")"
ln -s -f "${shadow_out[*]}" "$shadow_link"
fi
fi
"$orig_ar" "${orig_opts[@]}" < /dev/stdin &
orig_res=0 && wait $! || orig_res=$?
if [ $orig_res != 0 ]; then
errors+=("orig_ar failed with $orig_res")
fi
exit $orig_res
|
