diff options
| author | Russ Cox <rsc@golang.org> | 2010-03-31 19:48:33 -0700 |
|---|---|---|
| committer | Russ Cox <rsc@golang.org> | 2010-03-31 19:48:33 -0700 |
| commit | 01adb1764725174c72ecf19623761c0ba03ae29b (patch) | |
| tree | 61a7e9808e8c19bf7a3a6e37db25f98da1eef010 /src/env.bash | |
| parent | ed3cf90f3df0a181f78da077da6935241846c23e (diff) | |
| download | golang-01adb1764725174c72ecf19623761c0ba03ae29b.tar.gz | |
build script tweaks
factor out environment variable checks.
infer $GOROOT etc during build if not set.
it's still necessary to set them for yourself
to use the standard Makefiles.
when running all.bash, don't recompile all the
go packages in run.bash, since make.bash already did.
R=r
CC=golang-dev
http://codereview.appspot.com/609042
Diffstat (limited to 'src/env.bash')
| -rw-r--r-- | src/env.bash | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/src/env.bash b/src/env.bash new file mode 100644 index 000000000..6ab491ae4 --- /dev/null +++ b/src/env.bash @@ -0,0 +1,55 @@ +#!/usr/bin/env bash +# Copyright 2009 The Go Authors. All rights reserved. +# Use of this source code is governed by a BSD-style +# license that can be found in the LICENSE file. + +if test -z "$GOBIN"; then + if ! test -d "$HOME"/bin; then + echo '$GOBIN is not set and $HOME/bin is not a directory or does not exist.' 1>&2 + echo 'mkdir $HOME/bin or set $GOBIN to a directory where binaries should' 1>&2 + echo 'be installed.' 1>&2 + exit 1 + fi + GOBIN="$HOME/bin" +elif ! test -d "$GOBIN"; then + echo '$GOBIN is not a directory or does not exist' 1>&2 + echo 'create it or set $GOBIN differently' 1>&2 + exit 1 +fi + +GOROOT=${GOROOT:-$(cd ..; pwd)} +if ! test -f "$GOROOT"/include/u.h +then + echo '$GOROOT is not set correctly or not exported' 1>&2 + exit 1 +fi + +# Double-check that we're in $GOROOT, for people with multiple Go trees. +# Various aspects of the build cd into $GOROOT-rooted paths, +# making it easy to jump to a different tree and get confused. +DIR1=$(cd ..; pwd) +DIR2=$(cd $GOROOT; pwd) +if [ "$DIR1" != "$DIR2" ]; then + echo 'Suspicious $GOROOT: does not match current directory.' 1>&2 + exit 1 +fi + +GOARCH=${GOARCH:-$(uname -m | sed 's/^..86$/386/; s/^.86$/386/; s/x86_64/amd64/')} +case "$GOARCH" in +amd64 | 386 | arm) + ;; +*) + echo '$GOARCH is set to <'$GOARCH'>, must be amd64, 386, or arm' 1>&2 + exit 1 +esac + +GOOS=${GOOS:-$(uname | tr A-Z a-z)} +case "$GOOS" in +darwin | freebsd | linux | mingw | nacl) + ;; +*) + echo '$GOOS is set to <'$GOOS'>, must be darwin, freebsd, linux, mingw, or nacl' 1>&2 + exit 1 +esac + +export GOBIN GOROOT GOARCH GOOS |