mirror of https://github.com/harness/drone.git
81 lines
2.3 KiB
Go
81 lines
2.3 KiB
Go
// Copyright 2023 Harness, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package git
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import (
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"context"
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"fmt"
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"os"
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"github.com/harness/gitness/git/api"
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"github.com/drone/go-generate/builder"
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"github.com/drone/go-generate/chroot"
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"github.com/rs/zerolog/log"
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)
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type GeneratePipelineParams struct {
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ReadParams
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}
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type GeneratePipelinesOutput struct {
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PipelineYAML []byte
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}
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func (s *Service) GeneratePipeline(ctx context.Context,
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params *GeneratePipelineParams,
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) (GeneratePipelinesOutput, error) {
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if err := params.Validate(); err != nil {
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return GeneratePipelinesOutput{}, err
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}
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repoPath := getFullPathForRepo(s.reposRoot, params.RepoUID)
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tempDir, err := os.MkdirTemp(s.tmpDir, "*-"+params.RepoUID)
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if err != nil {
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return GeneratePipelinesOutput{}, fmt.Errorf("error creating temp dir for repo %s: %w", params.RepoUID, err)
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}
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defer func(path string) {
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// when repo is successfully created remove temp dir
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errRm := os.RemoveAll(path)
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if errRm != nil {
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log.Err(errRm).Msg("failed to cleanup temporary dir.")
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}
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}(tempDir)
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// Clone repository to temp dir
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if err = s.git.Clone(ctx, repoPath, tempDir, api.CloneRepoOptions{Depth: 1}); err != nil {
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return GeneratePipelinesOutput{}, fmt.Errorf("failed to clone repo: %w", err)
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}
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// create a chroot virtual filesystem that we
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// pass to the builder for isolation purposes.
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chroot, err := chroot.New(tempDir)
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if err != nil {
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return GeneratePipelinesOutput{}, fmt.Errorf("failed to set the temp directory as active directory: %w", err)
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}
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// builds the pipeline configuration based on
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// the contents of the virtual filesystem.
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builder := builder.New()
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out, err := builder.Build(chroot)
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if err != nil {
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return GeneratePipelinesOutput{}, fmt.Errorf("failed to build pipeline: %w", err)
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}
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return GeneratePipelinesOutput{
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PipelineYAML: out,
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}, nil
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}
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