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|
#!/usr/bin/env bash
panic() {
>&2 echo panic
exit 2
}
out() {
printf '%q ' "$@"
}
# system
# linux
# public
# protected
# private
classify() {
local path=$1
if [[ "$path" = linux/* ]]; then
out linux "$path"
elif [[ -f "${current_file%/*}/${path}" ]]; then
out private "$path"
elif [[ "$path" != systemd/* ]] &&
[[ "$path" != libudev.h ]] &&
cpp -include "$path" <<<'' &>/dev/null; then
out system "$path"
else
case "$path" in
*-to-name.h|*-from-name.h)
base="${path##*/}"
base="${base%-to-name.h}"
base="${base%-from-name.h}"
case "$base" in
dns_type) d=src/grp-resolve/systemd-resolved;;
keyboard-keys) d=src/grp-udev/libudev-core;;
af|arphrd|cap|errno) d=src/libbasic/include/basic;;
audit_type) d=src/libsystemd/src/sd-journal;;
*)
>&2 printf 'Unknown gperf base: %q\n' "$base"
>&2 printf 'Cannot figure out: %q\n' "$path"
exit 2
;;
esac
file="$d/${path##*/}"
if [[ "$current_file" = "$d"/* ]]; then
out private "${file##*/}"
elif [[ "$file" = */include/* ]]; then
out protected "${file##*/include/}"
else
out protected "${file##*/}"
fi
;;
asm/sgidefs.h|dbus/dbus.h|efi.h|efilib.h|gio/gio.h|glib.h|libmount.h)
out system "$path"
;;
util.h|*/util.h)
if [[ "$current_file" = */systemd-boot/* ]]; then
out private util.h
else
out protected basic/util.h
fi
;;
*)
file=$(find src -type f -name "${path##*/}")
if [[ -f "$file" ]]; then
case "$file" in
*/src/*)
if [[ "${current_file%/*}" = "${file%/*}" ]]; then
out private "${file##*/}"
else
out protected "${file##*/src/}"
fi
;;
*/libsystemd/include/*|*/libudev/include/*)
out public "${file##*/include/}"
;;
*/include/*)
out protected "${file##*/include/}"
;;
*)
if [[ "${current_file%/*}" = "${file%/*}" ]]; then
out private "${file##*/}"
else
out protected "${file##*/}"
fi
;;
esac
else
>&2 printf 'Cannot figure out: %q\n' "$path"
exit 2
fi
;;
esac
fi
}
phase=phase0
hook=:
phase0() {
phase=phase0
hook=:
local line="$1"
case "$line" in
'#include'*|'typedef '*';')
phase1 "$line"
;;
*)
printf '%s\n' "$line"
;;
esac
}
phase1_init() {
phase1_tail=
system=()
linux=()
public=()
protected=()
typedef=(); typedef_last=true
private=()
}
phase1_init
phase1_flush() {
local b=:
if [[ ${#system[@]} -gt 0 ]]; then
printf '%s\n' "${system[@]}" | sort -u
b=echo
fi
if [[ ${#linux[@]} -gt 0 ]]; then
$b
printf '%s\n' "${linux[@]}"
b=echo
fi
if [[ ${#public[@]} -gt 0 ]]; then
$b
printf '%s\n' "${public[@]}" | sort -u
b=echo
fi
if [[ ${#protected[@]} -gt 0 ]]; then
$b
printf '%s\n' "${protected[@]}" | sort -u
b=echo
fi
if [[ ${#typedef[@]} -gt 0 ]] && ! $typedef_last; then
$b
printf '%s\n' "${typedef[@]}" | sort -u
b=echo
fi
if [[ ${#private[@]} -gt 0 ]]; then
$b
printf '%s\n' "${private[@]}" | sort -u
b=echo
fi
if [[ ${#typedef[@]} -gt 0 ]] && $typedef_last; then
$b
printf '%s\n' "${typedef[@]}"
fi
printf '%s' "$phase1_tail"
phase1_init
}
phase1() {
phase=phase1
hook=phase1_flush
local line="$1"
case "$line" in
'')
phase1_tail+=$'\n'
;;
'#include'*)
phase1_tail=''
local re='^#include [<"]([^">]*)[">](.*)'
if [[ "$line" =~ $re ]]; then
IFS=' '
local buf
buf="$(classify "${BASH_REMATCH[1]}")" || panic
read -r class path <<<"$buf"
case "$class" in
system)
printf -v line '#include <%s>%s' "$path" "${BASH_REMATCH[2]}"
system+=("$line")
;;
linux)
printf -v line '#include <%s>%s' "$path" "${BASH_REMATCH[2]}"
linux+=("$line")
;;
public)
printf -v line '#include <%s>%s' "$path" "${BASH_REMATCH[2]}"
public+=("$line")
;;
protected)
printf -v line '#include "%s"%s' "$path" "${BASH_REMATCH[2]}"
protected+=("$line")
;;
private)
if [[ ${#typedef[@]} -gt 0 ]]; then
typedef_last=false
fi
printf -v line '#include "%s"%s' "$path" "${BASH_REMATCH[2]}"
private+=("$line")
;;
esac
else
panic
fi
;;
'typedef '*';')
phase1_tail=''
typedef+=("$line")
;;
*)
phase1_flush
phase0 "$line"
;;
esac
}
main() {
current_file="$1"
printf ' => %q %q\n' "$0" "$current_file"
set -o pipefail
trap 'rm -f -- "$current_file.tmp"' EXIT
{
IFS=''
while read -r line; do
"$phase" "$line"
IFS=''
done
"$hook"
} < "$current_file" > "$current_file.tmp"
# I specificially don't use write-ifchanged because I don't want the
# temporary file to have the .c suffix.
if cmp -s "$current_file.tmp" "$current_file"; then
rm -f "$current_file.tmp" || :
else
mv -Tf "$current_file.tmp" "$current_file"
fi
}
main "$@"
|
