debian-forge-composer/internal/blueprint/blueprint.go
Tom Gundersen 0efc345b2d rhel84/grub2: set saved_entry
Explicitly set the kernel to boot into.

Also change the blueprint/kernenl handling:

Rather than only falling back to the default kernel name for
getting the package list, let GetKernel() always return the
correct result so we can rely on this being consistent.

Signed-off-by: Tom Gundersen <teg@jklm.no>
2021-02-20 20:01:15 +01:00

121 lines
3.3 KiB
Go

// Package blueprint contains primitives for representing weldr blueprints
package blueprint
import (
"encoding/json"
"fmt"
"github.com/coreos/go-semver/semver"
)
// A Blueprint is a high-level description of an image.
type Blueprint struct {
Name string `json:"name" toml:"name"`
Description string `json:"description" toml:"description"`
Version string `json:"version,omitempty" toml:"version,omitempty"`
Packages []Package `json:"packages" toml:"packages"`
Modules []Package `json:"modules" toml:"modules"`
Groups []Group `json:"groups" toml:"groups"`
Customizations *Customizations `json:"customizations,omitempty" toml:"customizations,omitempty"`
}
type Change struct {
Commit string `json:"commit" toml:"commit"`
Message string `json:"message" toml:"message"`
Revision *int `json:"revision" toml:"revision"`
Timestamp string `json:"timestamp" toml:"timestamp"`
Blueprint Blueprint `json:"-" toml:"-"`
}
// A Package specifies an RPM package.
type Package struct {
Name string `json:"name" toml:"name"`
Version string `json:"version,omitempty" toml:"version,omitempty"`
}
// A group specifies an package group.
type Group struct {
Name string `json:"name" toml:"name"`
}
// DeepCopy returns a deep copy of the blueprint
// This uses json.Marshal and Unmarshal which are not very efficient
func (b *Blueprint) DeepCopy() Blueprint {
bpJSON, err := json.Marshal(b)
if err != nil {
panic(err)
}
var bp Blueprint
err = json.Unmarshal(bpJSON, &bp)
if err != nil {
panic(err)
}
return bp
}
// Initialize ensures that the blueprint has sane defaults for any missing fields
func (b *Blueprint) Initialize() error {
if b.Packages == nil {
b.Packages = []Package{}
}
if b.Modules == nil {
b.Modules = []Package{}
}
if b.Groups == nil {
b.Groups = []Group{}
}
if b.Version == "" {
b.Version = "0.0.0"
}
// Return an error if the version is not valid
_, err := semver.NewVersion(b.Version)
if err != nil {
return fmt.Errorf("Invalid 'version', must use Semantic Versioning: %s", err.Error())
}
return nil
}
// BumpVersion increments the previous blueprint's version
// If the old version string is not vaild semver it will use the new version as-is
// This assumes that the new blueprint's version has already been validated via Initialize
func (b *Blueprint) BumpVersion(old string) {
var ver *semver.Version
ver, err := semver.NewVersion(old)
if err != nil {
return
}
ver.BumpPatch()
b.Version = ver.String()
}
// packages, modules, and groups all resolve to rpm packages right now. This
// function returns a combined list of "name-version" strings.
func (b *Blueprint) GetPackages() []string {
packages := []string{}
for _, pkg := range b.Packages {
packages = append(packages, pkg.ToNameVersion())
}
for _, pkg := range b.Modules {
packages = append(packages, pkg.ToNameVersion())
}
for _, group := range b.Groups {
packages = append(packages, "@"+group.Name)
}
kc := b.Customizations.GetKernel()
kpkg := Package{Name: kc.Name}
packages = append(packages, kpkg.ToNameVersion())
return packages
}
func (p Package) ToNameVersion() string {
// Omit version to prevent all packages with prefix of name to be installed
if p.Version == "*" || p.Version == "" {
return p.Name
}
return p.Name + "-" + p.Version
}