mirror of
https://github.com/linuxkit/linuxkit.git
synced 2026-05-07 09:40:16 +00:00
5143cef148
Go code is really fast to compile so we do not really need to use the cache features of `docker build`. So make a compile container instead. This can also output a build context and Dockerfile if you want to do a build. For reference, an uncached `docker build` of our Go code takes about 7s, a cached one 1.2s, and this takes 1.7s, so the best case is a little worse, but we save a lot of images, and the worst case is better. This is mainly designed to make the nested builds for containerd containers simpler too. Will add a variant for the C code as well. Also add `-static` to the flags so we always make static executables, which was omitted previously. Signed-off-by: Justin Cormack <justin.cormack@docker.com>
60 lines
968 B
Bash
Executable File
60 lines
968 B
Bash
Executable File
#!/bin/sh
|
|
|
|
# This is designed to compile a single package to a single binary
|
|
# so it makes some assumptions about things to simplify config
|
|
# to output a single binary (in a tarball) just use -o file
|
|
# use --docker to output a tarball for input to docker build -
|
|
|
|
set -e
|
|
|
|
usage() {
|
|
echo "Usage: -o file [--docker]"
|
|
exit 1
|
|
}
|
|
|
|
[ $# = 0 ] && usage
|
|
|
|
while [ $# -gt 1 ]
|
|
do
|
|
flag="$1"
|
|
case "$flag" in
|
|
-o)
|
|
out="$2"
|
|
mkdir -p "$(dirname $2)"
|
|
shift
|
|
;;
|
|
*)
|
|
echo "Unknown option $1"
|
|
exit 1
|
|
esac
|
|
shift
|
|
done
|
|
|
|
[ $# -gt 0 ] && [ $1 = "--docker" ] && DOCKER=1 && shift
|
|
|
|
[ $# -gt 0 ] && usage
|
|
[ -z "$out" ] && usage
|
|
|
|
package=$(basename "$out")
|
|
|
|
dir="$GOPATH/src/$package"
|
|
|
|
mkdir -p $dir
|
|
|
|
# untar input
|
|
tar xf - -C $dir
|
|
|
|
/usr/bin/lint.sh $dir
|
|
|
|
go build -o $out --ldflags '-extldflags "-fno-PIC -static"' "$package"
|
|
|
|
if [ -z "$DOCKER" ]
|
|
then
|
|
tar cf - $out
|
|
exit 0
|
|
fi
|
|
|
|
printf "FROM scratch\nCOPY $out $out\nENTRYPOINT [\"$out\"]\n" > Dockerfile
|
|
|
|
tar cf - Dockerfile $out
|