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author | Brad Fitzpatrick <bradfitz@golang.org> | 2017-11-30 02:26:51 +0000 |
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committer | Brad Fitzpatrick <bradfitz@golang.org> | 2017-11-30 17:37:23 +0000 |
commit | f0f62fcc46a714cf0f3305b7c02af885953fdae7 (patch) | |
tree | 13592c6a291464447f89e8e537b5fbac9ffac2f0 /src/bootstrap.bash | |
parent | 2708da0dc1537ad223e060a3aca78e984c79bc01 (diff) | |
download | go-f0f62fcc46a714cf0f3305b7c02af885953fdae7.tar.gz go-f0f62fcc46a714cf0f3305b7c02af885953fdae7.zip |
build: add alternate output format for bootstrap.bash, as used by builders
I've been doing these tweaks by hand. I was going to write a tool in
Go for it, but it's not much additional shell here.
Fixes #22912
Updates #9797 (already closed)
Change-Id: Ia15bd9b6876e6f6a76aa9ca86b10f113095e96a3
Reviewed-on: https://go-review.googlesource.com/80895
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Diffstat (limited to 'src/bootstrap.bash')
-rwxr-xr-x | src/bootstrap.bash | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/src/bootstrap.bash b/src/bootstrap.bash index da3dff461f..7b4f57461f 100755 --- a/src/bootstrap.bash +++ b/src/bootstrap.bash @@ -14,6 +14,15 @@ # # 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. set -e @@ -28,6 +37,11 @@ if [ -e $targ ]; then exit 2 fi +if [ "$BOOTSTRAP_FORMAT" != "mintgz" -a "$BOOTSTRAP_FORMAT" != "" ]; then + echo "unknown BOOTSTRAP_FORMAT format" + exit 2 +fi + unset GOROOT src=$(cd .. && pwd) echo "#### Copying to $targ" @@ -62,8 +76,36 @@ else rmdir bin/*_* rm -rf "pkg/${gohostos}_${gohostarch}" "pkg/tool/${gohostos}_${gohostarch}" fi + +GITREV=$(git rev-parse --short HEAD) 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. |