fixup_includes


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215

#!/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 "$path" in
                        asm/sgidefs.h|dbus/dbus.h|efi.h|efilib.h|gio/gio.h|glib.h|libmount.h)
                                out system "$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 struct '*';')
                        phase1 "$line"
                        ;;
                *)
                        printf '%s\n' "$line"
                        ;;
        esac
}

phase1_tail=
system=()
linux=()
public=()
protected=()
typedef=(); typedef_last=true
private=()
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() {
        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 struct '*';')
                        phase1_tail=''
                        typedef+=("$line")
                        ;;
                *)
                        phase1_flush
                        phase2 "$line"
                        ;;
        esac
}

phase2() {
        phase=phase2
        hook=:
        local line="$1"
        printf '%s\n' "$line"
        cat
}

main() {
        current_file="$1"
        printf ' => %s\n' "$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"
        mv -Tf "$current_file.tmp" "$current_file"
}

main "$@"