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Ian Lance Taylor8473b702016-08-05 16:55:55 -07001#!/bin/sh
2
3# Copyright 2016 The Go Authors. All rights reserved.
4# Use of this source code is governed by a BSD-style
5# license that can be found in the LICENSE file.
6
7# Given a source directory, returns the non-test Go files that should
8# be built for this target. This implements Go's build constraints in
9# a shell script. There is similar code in testsuite/gotest.
10
11set -e
12
Ian Lance Taylor24e0c4c2016-08-12 19:49:31 -070013LANG=C
Ian Lance Taylor8473b702016-08-05 16:55:55 -070014LC_ALL=C
15LC_CTYPE=C
Ian Lance Taylor24e0c4c2016-08-12 19:49:31 -070016export LANG LC_ALL LC_CTYPE
Ian Lance Taylor8473b702016-08-05 16:55:55 -070017
18srcdir=""
19goarch=""
20goos=""
21extrafiles=""
22cmdlinetag="nosuchtag"
23cgotag="cgo"
24
25for arg; do
26 case "x$arg" in
27 x--srcdir)
28 srcdir=$2
29 shift
30 shift
31 ;;
32 x--srcdir=*)
33 srcdir=`echo $1 | sed -e 's/^--srcdir=//'`
34 shift
35 ;;
36 x--goarch)
37 goarch=$2
38 shift
39 shift
40 ;;
41 x--goarch=*)
42 goarch=`echo $1 | sed -e 's/^--goarch=//'`
43 shift
44 ;;
45 x--goos)
46 goos=$2
47 shift
48 shift
49 ;;
50 x--goos=*)
51 goos=`echo $1 | sed -e 's/^--goos=//'`
52 shift
53 ;;
54 x--extrafiles)
55 extrafiles=$2
56 shift
57 shift
58 ;;
59 x--extrafiles=*)
60 extrafiles=`echo $1 | sed -e 's/^--extrafiles=//'`
61 shift
62 ;;
63 x--tag)
64 cmdlinetag=$2
65 shift
66 shift
67 ;;
68 x--tag=*)
69 cmdlinetag=`echo $1 | sed -e 's/^--tag=//'`
70 shift
71 ;;
72 x--nocgo)
73 cgotag="nosuchtag"
74 shift
75 ;;
76 *)
77 echo 1>&2 "unknown argument $arg"
78 exit 1
79 ;;
80 esac
81done
82
83cd $srcdir
84
85gofiles=
86for f in *.go; do
87 case $f in
88 *_test.go)
89 ;;
90 *.go)
91 gofiles="$gofiles $f"
92 ;;
93 esac
94done
95
96if test "$gofiles" = ""; then
97 echo 1>&2 "no non-test .go files in $srcdir"
98 exit 1
99fi
100
101matched=
102for f in $gofiles; do
103 tag1=`echo $f | sed -e 's/^.*_\([^_]*\).go$/\1/'`
104 tag2=`echo $f | sed -e 's/^.*_\([^_]*\)_[^_]*.go$/\1/'`
105 if test x$tag1 = x$f; then
106 tag1=
107 fi
108 if test x$tag2 = x$f; then
109 tag2=
110 fi
111
112 case "$tag1" in
113 "") ;;
114 $goarch) ;;
115 $goos) ;;
116 android | darwin | dragonfly | freebsd | linux | nacl | netbsd | openbsd | plan9 | solaris | windows)
117 tag1=nonmatchingtag
118 ;;
Ian Lance Tayloreeeeff32016-08-07 15:27:55 -0700119 386 | amd64 | amd64p32 | arm | armbe | arm64 | arm64be | alpha | ia64 | m68k | ppc64 | ppc64le | mips | mipsle | mips64 | mips64le | mips64p32 | mips64p32le | mipso32 | mipsn32 | mipsn64 | mipso64 | ppc | s390 | s390x | sparc | sparc64)
Ian Lance Taylor8473b702016-08-05 16:55:55 -0700120 tag1=nonmatchingtag
121 ;;
122 esac
123
124 case "$tag2" in
125 "") ;;
126 $goarch) ;;
127 $goos) ;;
128 android | darwin | dragonfly | freebsd | linux | nacl | netbsd | openbsd | plan9 | solaris | windows)
129 tag2=nonmatchingtag
130 ;;
Ian Lance Tayloreeeeff32016-08-07 15:27:55 -0700131 386 | amd64 | amd64p32 | arm | armbe | arm64 | arm64be | alpha | ia64 | m68k | ppc64 | ppc64le | mips | mipsle | mips64 | mips64le | mips64p32 | mips64p32le | mipso32 | mipsn32 | mipsn64 | mipso64 | ppc | s390 | s390x | sparc | sparc64)
Ian Lance Taylor8473b702016-08-05 16:55:55 -0700132 tag2=nonmatchingtag
133 ;;
134 esac
135
136 if test x$tag1 != xnonmatchingtag -a x$tag2 != xnonmatchingtag; then
137 # Pipe through cat so that `set -e` doesn't affect fgrep.
138 tags=`sed '/^package /q' < $f | grep '^// +build ' | cat`
139 omatch=true
140 first=true
141 match=false
142 for tag in $tags; do
143 case $tag in
144 "//")
145 ;;
146 "+build")
147 if test "$first" = "true"; then
148 first=false
149 elif test "$match" = "false"; then
150 omatch=false
151 fi
152 match=false
153 ;;
Ian Lance Taylor0ba45632017-01-13 11:17:23 -0800154 $goos | $goarch | $cgotag | $cmdlinetag | "gccgo")
Ian Lance Taylor8473b702016-08-05 16:55:55 -0700155 match=true
156 ;;
Ian Lance Taylor0ba45632017-01-13 11:17:23 -0800157 "!"$goos | "!"$goarch | "!"$cgotag | "!"$cmdlinetag | "!gccgo")
Ian Lance Taylor8473b702016-08-05 16:55:55 -0700158 ;;
159 *,*)
160 cmatch=true
161 for ctag in `echo $tag | sed -e 's/,/ /g'`; do
162 case $ctag in
Ian Lance Taylor0ba45632017-01-13 11:17:23 -0800163 $goos | $goarch | $cgotag | $cmdlinetag | "gccgo")
Ian Lance Taylor8473b702016-08-05 16:55:55 -0700164 ;;
Ian Lance Taylor0ba45632017-01-13 11:17:23 -0800165 "!"$goos | "!"$goarch | "!"$cgotag | "!"$cmdlinetag | "!gccgo")
Ian Lance Taylor8473b702016-08-05 16:55:55 -0700166 cmatch=false
167 ;;
168 "!"*)
169 ;;
170 *)
171 cmatch=false
172 ;;
173 esac
174 done
175 if test "$cmatch" = "true"; then
176 match=true
177 fi
178 ;;
179 "!"*)
180 match=true
181 ;;
182 esac
183 done
184
185 if test "$match" = "false" -a "$first" = "false"; then
186 omatch=false
187 fi
188
189 if test "$omatch" = "true"; then
190 matched="$matched $srcdir/$f"
191 fi
192 fi
193done
194
195echo $matched $extrafiles
196
197exit 0