debian-forge-composer/cmd/osbuild-pipeline/main.go
Lars Karlitski e5eb673be6 distro: rename awkwardly named function
WithSingleDistro() doesn't follow go's naming convention for creating
objects (New*). Rename it to NewRegistry() and rename the old
NewRegistry() to NewDefaultRegistry().

The idea is that NewRegistry() can be used to create full Registry
objects from outside the package. NewDefaultRegistry() is a convenience
function that creates a Registry with all known distros.
2020-03-03 11:53:06 +01:00

123 lines
3.6 KiB
Go

package main
import (
"encoding/json"
"flag"
"fmt"
"io/ioutil"
"os"
"path"
"github.com/osbuild/osbuild-composer/internal/common"
"github.com/osbuild/osbuild-composer/internal/blueprint"
"github.com/osbuild/osbuild-composer/internal/distro"
"github.com/osbuild/osbuild-composer/internal/rpmmd"
)
func main() {
var imageType string
var blueprintArg string
var archArg string
var distroArg string
flag.StringVar(&imageType, "image-type", "", "image type, e.g. qcow2 or ami")
flag.StringVar(&blueprintArg, "blueprint", "", "path to a JSON file containing a blueprint to translate")
flag.StringVar(&archArg, "arch", "", "architecture to create image for, e.g. x86_64")
flag.StringVar(&distroArg, "distro", "", "distribution to create, e.g. fedora-30")
flag.Parse()
// Print help usage if one of the required arguments wasn't provided
if imageType == "" || blueprintArg == "" || archArg == "" || distroArg == "" {
flag.Usage()
return
}
// Validate architecture
if !common.ArchitectureExists(archArg) {
_, _ = fmt.Fprintf(os.Stderr, "The provided architecture (%s) is not supported. Use one of these:\n", archArg)
for _, arch := range common.ListArchitectures() {
_, _ = fmt.Fprintln(os.Stderr, " *", arch)
}
return
}
// Validate distribution
if !common.DistributionExists(distroArg) {
_, _ = fmt.Fprintf(os.Stderr, "The provided distribution (%s) is not supported. Use one of these:\n", distroArg)
for _, distro := range common.ListDistributions() {
_, _ = fmt.Fprintln(os.Stderr, " *", distro)
}
return
}
// Validate image type
blueprint := &blueprint.Blueprint{}
if blueprintArg != "" {
file, err := ioutil.ReadFile(blueprintArg)
if err != nil {
panic("Could not find blueprint: " + err.Error())
}
err = json.Unmarshal([]byte(file), &blueprint)
if err != nil {
panic("Could not parse blueprint: " + err.Error())
}
}
distros := distro.NewDefaultRegistry([]string{"."})
d := distros.GetDistro(distroArg)
if d == nil {
panic("unknown distro: " + distroArg)
}
packages := make([]string, len(blueprint.Packages))
for i, pkg := range blueprint.Packages {
packages[i] = pkg.Name
// If a package has version "*" the package name suffix must be equal to "-*-*.*"
// Using just "-*" would find any other package containing the package name
if pkg.Version != "" && pkg.Version != "*" {
packages[i] += "-" + pkg.Version
} else if pkg.Version == "*" {
packages[i] += "-*-*.*"
}
}
pkgs, exclude_pkgs, err := d.BasePackages(imageType, archArg)
if err != nil {
panic("could not get base packages: " + err.Error())
}
packages = append(pkgs, packages...)
home, err := os.UserHomeDir()
if err != nil {
panic("os.UserHomeDir(): " + err.Error())
}
rpmmd := rpmmd.NewRPMMD(path.Join(home, ".cache/osbuild-composer/rpmmd"))
packageSpecs, checksums, err := rpmmd.Depsolve(packages, exclude_pkgs, d.Repositories(archArg), d.ModulePlatformID(), false)
if err != nil {
panic("Could not depsolve: " + err.Error())
}
buildPkgs, err := d.BuildPackages(archArg)
if err != nil {
panic("Could not get build packages: " + err.Error())
}
buildPackageSpecs, _, err := rpmmd.Depsolve(buildPkgs, nil, d.Repositories(archArg), d.ModulePlatformID(), false)
if err != nil {
panic("Could not depsolve build packages: " + err.Error())
}
size := d.GetSizeForOutputType(imageType, 0)
pipeline, err := d.Pipeline(blueprint, nil, packageSpecs, buildPackageSpecs, checksums, archArg, imageType, size)
if err != nil {
panic(err.Error())
}
bytes, err := json.Marshal(pipeline)
if err != nil {
panic("could not marshal pipeline into JSON")
}
os.Stdout.Write(bytes)
}