# Only changes that have been committed to Git (at least locally,
# not necessary reviewed and submitted to master) are included in the tree.
#
-# As a special case for Go's internal use only, if the
-# BOOTSTRAP_FORMAT environment variable is set to "mintgz", the
-# resulting archive is intended for use by the Go build system and
-# differs in that the mintgz file:
-# * is a tar.gz file instead of bz2
-# * has many unnecessary files deleted to reduce its size
-# * does not have a shared directory component for each tar entry
-# Do not depend on the mintgz format.
+# See also golang.org/x/build/cmd/genbootstrap, which is used
+# to generate bootstrap tgz files for builders.
set -e
if [ "$GOOS" = "" -o "$GOARCH" = "" ]; then
- echo "usage: GOOS=os GOARCH=arch ./bootstrap.bash" >&2
+ echo "usage: GOOS=os GOARCH=arch ./bootstrap.bash [-force]" >&2
exit 2
fi
+forceflag=""
+if [ "$1" = "-force" ]; then
+ forceflag=-force
+ shift
+fi
+
targ="../../go-${GOOS}-${GOARCH}-bootstrap"
if [ -e $targ ]; then
echo "$targ already exists; remove before continuing"
exit 2
fi
-if [ "$BOOTSTRAP_FORMAT" != "mintgz" -a "$BOOTSTRAP_FORMAT" != "" ]; then
- echo "unknown BOOTSTRAP_FORMAT format"
- exit 2
-fi
-
unset GOROOT
src=$(cd .. && pwd)
echo "#### Copying to $targ"
-cp -R "$src" "$targ"
+cp -Rp "$src" "$targ"
cd "$targ"
echo
echo "#### Cleaning $targ"
+chmod -R +w .
rm -f .gitignore
if [ -e .git ]; then
git clean -f -d
echo "#### Building $targ"
echo
cd src
-./make.bash --no-banner
+./make.bash --no-banner $forceflag
gohostos="$(../bin/go env GOHOSTOS)"
gohostarch="$(../bin/go env GOHOSTARCH)"
goos="$(../bin/go env GOOS)"
# prepare a clean toolchain for others.
true
else
+ rm -f bin/go_${goos}_${goarch}_exec
mv bin/*_*/* bin
rmdir bin/*_*
rm -rf "pkg/${gohostos}_${gohostarch}" "pkg/tool/${gohostos}_${gohostarch}"
fi
-if [ "$BOOTSTRAP_FORMAT" = "mintgz" ]; then
- # Fetch git revision before rm -rf .git.
- GITREV=$(git rev-parse --short HEAD)
-fi
-
rm -rf pkg/bootstrap pkg/obj .git
-# Support for building minimal tar.gz for the builders.
-# The build system doesn't support bzip2, and by deleting more stuff,
-# they start faster, especially on machines without fast filesystems
-# and things like tmpfs configures.
-# Do not depend on this format. It's for internal use only.
-if [ "$BOOTSTRAP_FORMAT" = "mintgz" ]; then
- OUTGZ="gobootstrap-${GOOS}-${GOARCH}-${GITREV}.tar.gz"
- echo "Preparing to generate build system's ${OUTGZ}; cleaning ..."
- rm -rf bin/gofmt
- rm -rf src/runtime/race/race_*.syso
- rm -rf api test doc misc/cgo/test misc/trace
- rm -rf pkg/tool/*_*/{addr2line,api,cgo,cover,doc,fix,nm,objdump,pack,pprof,test2json,trace,vet}
- rm -rf pkg/*_*/{image,database,cmd}
- rm -rf $(find . -type d -name testdata)
- find . -type f -name '*_test.go' -exec rm {} \;
- # git clean doesn't clean symlinks apparently, and the buildlet
- # rejects them, so:
- find . -type l -exec rm {} \;
-
- echo "Writing ${OUTGZ} ..."
- tar cf - . | gzip -9 > ../$OUTGZ
- cd ..
- ls -l "$(pwd)/$OUTGZ"
- exit 0
-fi
-
echo ----
echo Bootstrap toolchain for "$GOOS/$GOARCH" installed in "$(pwd)".
echo Building tbz.