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https://github.com/mudler/luet.git
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0eef18d75c
The includes field is an array of regexp used to indicate what include inside the packag. It can be omitted to default behavior (all)
136 lines
3.5 KiB
Go
136 lines
3.5 KiB
Go
// Copyright © 2019 Ettore Di Giacinto <mudler@gentoo.org>
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this program; if not, see <http://www.gnu.org/licenses/>.
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package compiler
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import (
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"io/ioutil"
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"path/filepath"
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pkg "github.com/mudler/luet/pkg/package"
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yaml "gopkg.in/yaml.v2"
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)
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type LuetCompilationSpec struct {
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Steps []string `json:"steps"` // Are run inside a container and the result layer diff is saved
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Prelude []string `json:"prelude"` // Are run inside the image which will be our builder
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Image string `json:"image"`
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Seed string `json:"seed"`
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Package pkg.Package `json:"-"`
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OutputPath string `json:"-"` // Where the build processfiles go
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Unpack bool `json:"unpack"`
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Includes []string `json:"includes"`
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}
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func NewLuetCompilationSpec(b []byte, p pkg.Package) (CompilationSpec, error) {
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var spec LuetCompilationSpec
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err := yaml.Unmarshal(b, &spec)
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if err != nil {
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return &spec, err
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}
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spec.Package = p
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return &spec, nil
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}
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func (cs *LuetCompilationSpec) GetPackage() pkg.Package {
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return cs.Package
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}
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func (cs *LuetCompilationSpec) BuildSteps() []string {
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return cs.Steps
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}
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func (cs *LuetCompilationSpec) ImageUnpack() bool {
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return cs.Unpack
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}
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func (cs *LuetCompilationSpec) GetPreBuildSteps() []string {
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return cs.Prelude
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}
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func (cs *LuetCompilationSpec) GetIncludes() []string {
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return cs.Includes
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}
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func (cs *LuetCompilationSpec) GetSeedImage() string {
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return cs.Seed
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}
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func (cs *LuetCompilationSpec) GetImage() string {
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return cs.Image
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}
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func (cs *LuetCompilationSpec) GetOutputPath() string {
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return cs.OutputPath
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}
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func (p *LuetCompilationSpec) Rel(s string) string {
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return filepath.Join(p.GetOutputPath(), s)
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}
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func (cs *LuetCompilationSpec) SetImage(s string) {
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cs.Image = s
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}
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func (cs *LuetCompilationSpec) SetOutputPath(s string) {
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cs.OutputPath = s
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}
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func (cs *LuetCompilationSpec) SetSeedImage(s string) {
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cs.Seed = s
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}
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// TODO: docker build image first. Then a backend can be used to actually spin up a container with it and run the steps within
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func (cs *LuetCompilationSpec) RenderBuildImage() (string, error) {
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spec := `
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FROM ` + cs.GetSeedImage() + `
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COPY . /luetbuild
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WORKDIR /luetbuild
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`
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for _, s := range cs.GetPreBuildSteps() {
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spec = spec + `
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RUN ` + s
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}
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return spec, nil
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}
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// TODO: docker build image first. Then a backend can be used to actually spin up a container with it and run the steps within
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func (cs *LuetCompilationSpec) RenderStepImage(image string) (string, error) {
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spec := `
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FROM ` + image
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for _, s := range cs.BuildSteps() {
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spec = spec + `
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RUN ` + s
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}
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return spec, nil
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}
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func (cs *LuetCompilationSpec) WriteBuildImageDefinition(path string) error {
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data, err := cs.RenderBuildImage()
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if err != nil {
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return err
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}
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return ioutil.WriteFile(path, []byte(data), 0644)
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}
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func (cs *LuetCompilationSpec) WriteStepImageDefinition(fromimage, path string) error {
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data, err := cs.RenderStepImage(fromimage)
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if err != nil {
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return err
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}
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return ioutil.WriteFile(path, []byte(data), 0644)
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}
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