/
main.go
110 lines (89 loc) · 1.82 KB
/
main.go
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package main
import (
"flag"
"os"
"path"
"strings"
"github.com/cloudfoundry-incubator/linux-smelter/smelter"
"github.com/cloudfoundry/gunk/command_runner"
)
var appDir = flag.String(
"appDir",
"",
"directory containing raw app bits, settable as $APP_DIR",
)
var outputDir = flag.String(
"outputDir",
"",
"directory in which to write the smelted app bits, settable as $OUTPUT_DIR",
)
var resultDir = flag.String(
"resultDir",
"",
"directory in which to place smelting result metadata, settable as $RESULT_DIR",
)
var buildpacksDir = flag.String(
"buildpacksDir",
"",
"directory containing the buildpacks to try, settable as $BUILDPACKS_DIR",
)
var cacheDir = flag.String(
"cacheDir",
"",
"directory to store cached artifacts to buildpacks, settable as $CACHE_DIR",
)
var buildpackOrder = flag.String(
"buildpackOrder",
"",
"comma-separated list of buildpacks, to be tried in order, settable as $BUILDPACK_ORDER",
)
var debug = flag.Bool(
"debug",
false,
"print the output of commands as they're executed",
)
func main() {
flag.Parse()
if *appDir == "" {
println("missing -appDir")
usage()
}
if *outputDir == "" {
println("missing -outputDir")
usage()
}
if *buildpacksDir == "" {
println("missing -buildpacksDir")
usage()
}
if *resultDir == "" {
println("missing -resultDir")
usage()
}
if *buildpackOrder == "" {
println("missing -buildpackOrder")
usage()
}
buildpacks := []string{}
for _, name := range strings.Split(*buildpackOrder, ",") {
buildpacks = append(buildpacks, path.Join(*buildpacksDir, name))
}
smelter := smelter.New(
*appDir,
*outputDir,
*resultDir,
buildpacks,
*cacheDir,
command_runner.New(*debug),
)
err := smelter.Smelt()
if err != nil {
println(err.Error())
os.Exit(1)
}
os.Exit(0)
}
func usage() {
flag.PrintDefaults()
os.Exit(1)
}