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#!/bin/sh
# Copyright 2016 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
# Given a source directory, returns the non-test Go files that should
# be built for this target. This implements Go's build constraints in
# a shell script. There is similar code in testsuite/gotest.
set -e
LANG=C
LC_ALL=C
LC_CTYPE=C
export LANG LC_ALL LC_CTYPE
srcdir=""
goarch=""
goos=""
extrafiles=""
cmdlinetag="nosuchtag"
cgotag="cgo"
for arg; do
case "x$arg" in
x--srcdir)
srcdir=$2
shift
shift
;;
x--srcdir=*)
srcdir=`echo $1 | sed -e 's/^--srcdir=//'`
shift
;;
x--goarch)
goarch=$2
shift
shift
;;
x--goarch=*)
goarch=`echo $1 | sed -e 's/^--goarch=//'`
shift
;;
x--goos)
goos=$2
shift
shift
;;
x--goos=*)
goos=`echo $1 | sed -e 's/^--goos=//'`
shift
;;
x--extrafiles)
extrafiles=$2
shift
shift
;;
x--extrafiles=*)
extrafiles=`echo $1 | sed -e 's/^--extrafiles=//'`
shift
;;
x--tag)
cmdlinetag=$2
shift
shift
;;
x--tag=*)
cmdlinetag=`echo $1 | sed -e 's/^--tag=//'`
shift
;;
x--nocgo)
cgotag="nosuchtag"
shift
;;
*)
echo 1>&2 "unknown argument $arg"
exit 1
;;
esac
done
cd $srcdir
gofiles=
for f in *.go; do
case $f in
*_test.go)
;;
*.go)
gofiles="$gofiles $f"
;;
esac
done
if test "$gofiles" = ""; then
echo 1>&2 "no non-test .go files in $srcdir"
exit 1
fi
gobuild() {
line=$(echo "$1" | sed -e 's|//go:build ||')
line=$(echo "$line" | sed -e 's/go1\.[0-9][0-9]*/1/g' -e 's/goexperiment\./goexperiment/')
line=" $line "
wrap='[ ()!&|]'
for ones in $goarch $goos $cgotag $cmdlinetag gccgo goexperimentfieldtrack; do
line=$(echo "$line" | sed -e "s/\\(${wrap}\\)${ones}\\(${wrap}\\)/"'\11\2/g')
done
# 386 is a special case since it looks like a number to the shell.
# We need it to be 0 if it's not $goarch.
if test "$goarch" != "386"; then
line=$(echo "$line" | sed -e "s/\\(${wrap}\\)386\\(${wrap}\\)/\10\2/g")
fi
(($line))
}
matched=
for f in $gofiles; do
tag1=`echo $f | sed -e 's/^.*_\([^_]*\).go$/\1/'`
tag2=`echo $f | sed -e 's/^.*_\([^_]*\)_[^_]*.go$/\1/'`
if test x$tag1 = x$f; then
tag1=
fi
if test x$tag2 = x$f; then
tag2=
fi
case "$tag1" in
"") ;;
$goarch) ;;
$goos) ;;
aix | android | darwin | dragonfly | freebsd | illumos | hurd | ios | js | linux | nacl | netbsd | openbsd | plan9 | solaris | windows | zos)
tag1=nonmatchingtag
;;
386 | amd64 | amd64p32 | arm | armbe | arm64 | arm64be | alpha | ia64 | m68k | mips | mipsle | mips64 | mips64le | mips64p32 | mips64p32le | nios2 | ppc | ppc64 | ppc64le | riscv | riscv64 | s390 | s390x | sh | shbe | sparc | sparc64 | wasm)
tag1=nonmatchingtag
;;
*)
# File name like x_amd64_random.go, where tag1=random.
# Don't match based on tag2.
tag2=
;;
esac
case "$tag2" in
"") ;;
$goarch) ;;
$goos) ;;
aix | android | darwin | dragonfly | freebsd | hurd | ios | illumos | js | linux | nacl | netbsd | openbsd | plan9 | solaris | windows | zos)
tag2=nonmatchingtag
;;
386 | amd64 | amd64p32 | arm | armbe | arm64 | arm64be | alpha | ia64 | m68k | mips | mipsle | mips64 | mips64le | mips64p32 | mips64p32le | nios2 | ppc | ppc64 | ppc64le | riscv | riscv64 | s390 | s390x | sh | shbe | sparc | sparc64 | wasm)
tag2=nonmatchingtag
;;
esac
if test x$tag1 = xnonmatchingtag -o x$tag2 = xnonmatchingtag; then
continue
fi
# Check for go:build line
build=$(sed '/^package /q' < $f | grep '^//go:build ' | cat)
if test -n "$build"; then
if $(gobuild "$build"); then
matched="$matched $srcdir/$f"
fi
continue
fi
# No go:build line, check for +build lines.
# Pipe through cat so that `set -e` doesn't affect fgrep.
tags=`sed '/^package /q' < $f | grep '^// *+build ' | cat`
omatch=true
first=true
match=false
for tag in $tags; do
case $tag in
"//")
;;
"+build" | "//+build")
if test "$first" = "true"; then
first=false
elif test "$match" = "false"; then
omatch=false
fi
match=false
;;
$goos | $goarch | $cgotag | $cmdlinetag | "gccgo" | "goexperiment.fieldtrack" | go1.[0-9] | go1.[0-9][0-9])
match=true
;;
"!"$goos | "!"$goarch | "!"$cgotag | "!"$cmdlinetag | "!gccgo" | "!goexperiment.fieldtrack" | "!"go1.[0-9] | "!"go1.1[0-7])
;;
*,*)
cmatch=true
for ctag in `echo $tag | sed -e 's/,/ /g'`; do
case $ctag in
$goos | $goarch | $cgotag | $cmdlinetag | "gccgo" | "goexperiment.fieldtrack" | go1.[0-9] | go1.[0-9][0-9])
;;
"!"$goos | "!"$goarch | "!"$cgotag | "!"$cmdlinetag | "!gccgo" | "!goexperiment.fieldtrack" | "!"go1.[0-9] | "!"go1.1[0-7])
cmatch=false
;;
"!"*)
;;
*)
cmatch=false
;;
esac
done
if test "$cmatch" = "true"; then
match=true
fi
;;
"!"*)
match=true
;;
esac
done
if test "$match" = "false" -a "$first" = "false"; then
omatch=false
fi
if test "$omatch" = "true"; then
matched="$matched $srcdir/$f"
fi
done
echo $matched $extrafiles
exit 0
|
