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|
#!/bin/bash
set -euf -o pipefail
top="#TOP#"
shadow_top="#SHADOW_TOP#"
orig_strip="#ORIG_TOOL#"
shadow_strip="#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
(
$HOME/bin/myflock -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>>$shadow_top.lock
fi
}
trap report_errors EXIT
while [ "$#" -gt 0 ]; do
opt="$1"
shift
orig_opts+=("$opt")
case "$opt" in
"-o")
if [ "$#" -gt 0 ]; then
orig_out=("$1" "${orig_out[@]}")
orig_opts+=("$1")
shift
else
errors+=("$opt with no argument")
fi
;;
"-i")
if [ "$#" -gt 0 ]; then
orig_input=("$1" "${orig_input[@]}")
orig_opts+=("$1")
shift
else
errors+=("$opt with no argument")
fi
;;
"-d")
if [ "$#" -gt 0 ]; then
orig_opts+=("$1")
shift
else
errors+=("$opt with no argument")
fi
;;
"-"*)
;;
esac
done
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}#"
}
make_shadow_opts ()
{
local opt
while [ "$#" -gt 0 ]; do
opt="$1"
shift
case "$opt" in
"-o")
shadow_opts+=("$opt")
opt=$(print_shadow_path "$1")
shadow_out+=("$opt")
shift
;;
"-i")
shadow_opts+=("$opt")
opt=$(print_shadow_path "$1")
shadow_input+=("$opt")
shift
;;
"-d")
shadow_opts+=("$opt")
opt="/dev/null"
shift
;;
esac
shadow_opts+=("$opt")
done
}
if [ -e "${shadow_input[*]}" ] \
&& [ ${#errors[@]} = 0 ] && [ ${#skips[@]} = 0 ]; then
make_shadow_opts "${orig_opts[@]}"
fi
if [ -e "${shadow_input[*]}" ] \
&& [ ${#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 "$shadow_strip" "${shadow_opts[@]}" >> "$shadow_log"
"$shadow_strip" "${shadow_opts[@]}" >> "$shadow_log" 2>&1 &
shadow_res=0 && wait $! || shadow_res=$?
if [ $shadow_res != 0 ]; then
errors+=("shadow_strip failed with $shadow_res")
elif ! [ -e "${shadow_out[*]}" ]; then
errors+=("shadow_strip 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
"$orig_strip" "${orig_opts[@]}" &
orig_res=0 && wait $! || orig_res=$?
if [ $orig_res != 0 ]; then
errors+=("orig_strip failed with $orig_res")
fi
exit $orig_res
|
