woodpecker/cli/exec/exec.go

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// Copyright 2022 Woodpecker Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package exec
import (
"context"
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"fmt"
"io"
"os"
"path"
"path/filepath"
"runtime"
"strings"
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"github.com/drone/envsubst"
"github.com/urfave/cli/v2"
"github.com/woodpecker-ci/woodpecker/cli/common"
"github.com/woodpecker-ci/woodpecker/pipeline"
"github.com/woodpecker-ci/woodpecker/pipeline/backend"
"github.com/woodpecker-ci/woodpecker/pipeline/backend/types"
backendTypes "github.com/woodpecker-ci/woodpecker/pipeline/backend/types"
"github.com/woodpecker-ci/woodpecker/pipeline/frontend"
"github.com/woodpecker-ci/woodpecker/pipeline/frontend/yaml"
"github.com/woodpecker-ci/woodpecker/pipeline/frontend/yaml/compiler"
"github.com/woodpecker-ci/woodpecker/pipeline/frontend/yaml/linter"
"github.com/woodpecker-ci/woodpecker/pipeline/frontend/yaml/matrix"
"github.com/woodpecker-ci/woodpecker/pipeline/multipart"
"github.com/woodpecker-ci/woodpecker/shared/utils"
)
// Command exports the exec command.
var Command = &cli.Command{
Name: "exec",
Usage: "execute a local pipeline",
ArgsUsage: "[path/to/.woodpecker.yml]",
Action: run,
Flags: append(common.GlobalFlags, flags...),
}
func run(c *cli.Context) error {
return common.RunPipelineFunc(c, execFile, execDir)
}
func execDir(c *cli.Context, dir string) error {
// TODO: respect pipeline dependency
repoPath, _ := filepath.Abs(filepath.Dir(dir))
if runtime.GOOS == "windows" {
repoPath = convertPathForWindows(repoPath)
}
return filepath.Walk(dir, func(path string, info os.FileInfo, e error) error {
if e != nil {
return e
}
// check if it is a regular file (not dir)
if info.Mode().IsRegular() && strings.HasSuffix(info.Name(), ".yml") {
fmt.Println("#", info.Name())
_ = runExec(c, path, repoPath) // TODO: should we drop errors or store them and report back?
fmt.Println("")
return nil
}
return nil
})
}
func execFile(c *cli.Context, file string) error {
repoPath, _ := filepath.Abs(filepath.Dir(file))
if runtime.GOOS == "windows" {
repoPath = convertPathForWindows(repoPath)
}
return runExec(c, file, repoPath)
}
func runExec(c *cli.Context, file, repoPath string) error {
dat, err := os.ReadFile(file)
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if err != nil {
return err
}
axes, err := matrix.ParseString(string(dat))
if err != nil {
return fmt.Errorf("Parse matrix fail")
}
if len(axes) == 0 {
axes = append(axes, matrix.Axis{})
}
for _, axis := range axes {
err := execWithAxis(c, file, repoPath, axis)
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if err != nil {
return err
}
}
return nil
}
func execWithAxis(c *cli.Context, file, repoPath string, axis matrix.Axis) error {
metadata := metadataFromContext(c, axis)
environ := metadata.Environ()
var secrets []compiler.Secret
for key, val := range metadata.Step.Matrix {
environ[key] = val
secrets = append(secrets, compiler.Secret{
Name: key,
Value: val,
})
}
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droneEnv := make(map[string]string)
for _, env := range c.StringSlice("env") {
envs := strings.SplitN(env, "=", 2)
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droneEnv[envs[0]] = envs[1]
if _, exists := environ[envs[0]]; exists {
// don't override existing values
continue
}
environ[envs[0]] = envs[1]
}
tmpl, err := envsubst.ParseFile(file)
if err != nil {
return err
}
confstr, err := tmpl.Execute(func(name string) string {
return environ[name]
})
if err != nil {
return err
}
conf, err := yaml.ParseString(confstr)
if err != nil {
return err
}
// configure volumes for local execution
volumes := c.StringSlice("volumes")
if c.Bool("local") {
var (
workspaceBase = conf.Workspace.Base
workspacePath = conf.Workspace.Path
)
if workspaceBase == "" {
workspaceBase = c.String("workspace-base")
}
if workspacePath == "" {
workspacePath = c.String("workspace-path")
}
volumes = append(volumes, c.String("prefix")+"_default:"+workspaceBase)
volumes = append(volumes, repoPath+":"+path.Join(workspaceBase, workspacePath))
}
// lint the yaml file
if lerr := linter.New(linter.WithTrusted(true)).Lint(conf); lerr != nil {
return lerr
}
// compiles the yaml file
compiled, err := compiler.New(
compiler.WithEscalated(
c.StringSlice("privileged")...,
),
compiler.WithVolumes(volumes...),
compiler.WithWorkspace(
c.String("workspace-base"),
c.String("workspace-path"),
),
compiler.WithNetworks(
c.StringSlice("network")...,
),
compiler.WithPrefix(
c.String("prefix"),
),
compiler.WithProxy(),
compiler.WithLocal(
c.Bool("local"),
),
compiler.WithNetrc(
c.String("netrc-username"),
c.String("netrc-password"),
c.String("netrc-machine"),
),
compiler.WithMetadata(metadata),
compiler.WithSecret(secrets...),
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compiler.WithEnviron(droneEnv),
).Compile(conf)
if err != nil {
return err
}
backend.Init(context.WithValue(c.Context, types.CliContext, c))
engine, err := backend.FindEngine(c.String("backend-engine"))
if err != nil {
return err
}
if err = engine.Load(); err != nil {
return err
}
ctx, cancel := context.WithTimeout(context.Background(), c.Duration("timeout"))
defer cancel()
ctx = utils.WithContextSigtermCallback(ctx, func() {
println("ctrl+c received, terminating process")
})
return pipeline.New(compiled,
pipeline.WithContext(ctx),
pipeline.WithTracer(pipeline.DefaultTracer),
pipeline.WithLogger(defaultLogger),
pipeline.WithEngine(engine),
pipeline.WithDescription(map[string]string{
"CLI": "exec",
}),
).Run()
}
// return the metadata from the cli context.
func metadataFromContext(c *cli.Context, axis matrix.Axis) frontend.Metadata {
platform := c.String("system-platform")
if platform == "" {
platform = runtime.GOOS + "/" + runtime.GOARCH
}
return frontend.Metadata{
Repo: frontend.Repo{
Name: c.String("repo-name"),
Link: c.String("repo-link"),
CloneURL: c.String("repo-clone-url"),
Private: c.Bool("repo-private"),
},
Curr: frontend.Pipeline{
Number: c.Int64("pipeline-number"),
Parent: c.Int64("pipeline-parent"),
Created: c.Int64("pipeline-created"),
Started: c.Int64("pipeline-started"),
Finished: c.Int64("pipeline-finished"),
Status: c.String("pipeline-status"),
Event: c.String("pipeline-event"),
Link: c.String("pipeline-link"),
Target: c.String("pipeline-target"),
Commit: frontend.Commit{
Sha: c.String("commit-sha"),
Ref: c.String("commit-ref"),
Refspec: c.String("commit-refspec"),
Branch: c.String("commit-branch"),
Message: c.String("commit-message"),
Author: frontend.Author{
Name: c.String("commit-author-name"),
Email: c.String("commit-author-email"),
Avatar: c.String("commit-author-avatar"),
},
},
},
Prev: frontend.Pipeline{
Number: c.Int64("prev-pipeline-number"),
Created: c.Int64("prev-pipeline-created"),
Started: c.Int64("prev-pipeline-started"),
Finished: c.Int64("prev-pipeline-finished"),
Status: c.String("prev-pipeline-status"),
Event: c.String("prev-pipeline-event"),
Link: c.String("prev-pipeline-link"),
Commit: frontend.Commit{
Sha: c.String("prev-commit-sha"),
Ref: c.String("prev-commit-ref"),
Refspec: c.String("prev-commit-refspec"),
Branch: c.String("prev-commit-branch"),
Message: c.String("prev-commit-message"),
Author: frontend.Author{
Name: c.String("prev-commit-author-name"),
Email: c.String("prev-commit-author-email"),
Avatar: c.String("prev-commit-author-avatar"),
},
},
},
Step: frontend.Step{
Number: c.Int("step-number"),
Matrix: axis,
},
Sys: frontend.System{
Name: c.String("system-name"),
Link: c.String("system-link"),
Platform: platform,
},
}
}
func convertPathForWindows(path string) string {
base := filepath.VolumeName(path)
if len(base) == 2 {
path = strings.TrimPrefix(path, base)
base = strings.ToLower(strings.TrimSuffix(base, ":"))
return "/" + base + filepath.ToSlash(path)
}
return filepath.ToSlash(path)
}
var defaultLogger = pipeline.LogFunc(func(step *backendTypes.Step, rc multipart.Reader) error {
part, err := rc.NextPart()
if err != nil {
return err
}
logStream := NewLineWriter(step.Alias)
_, err = io.Copy(logStream, part)
return err
})