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setup.go

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package task

import (

"cmp"

"context"

"fmt"

"os"

"path/filepath"

"slices"

"strings"

"sync"

"github.com/Masterminds/semver/v3"

"github.com/sajari/fuzzy"

"github.com/go-task/task/v3/errors"

"github.com/go-task/task/v3/internal/execext"

"github.com/go-task/task/v3/internal/filepathext"

"github.com/go-task/task/v3/internal/logger"

"github.com/go-task/task/v3/internal/output"

"github.com/go-task/task/v3/internal/version"

"github.com/go-task/task/v3/taskfile"

"github.com/go-task/task/v3/taskfile/ast"

)

func (e *Executor) Setup() error {

e.setupLogger()

node, err := e.getRootNode()

if err != nil {

return err

}

if err := e.setupTempDir(); err != nil {

return err

}

if err := e.readTaskfile(node); err != nil {

return err

}

e.setupStdFiles()

if err := e.setupOutput(); err != nil {

return err

}

if err := e.setupCompiler(); err != nil {

return err

}

if err := e.readDotEnvFiles(); err != nil {

return err

}

if err := e.doVersionChecks(); err != nil {

return err

}

e.setupDefaults()

e.setupConcurrencyState()

return nil

}

func (e *Executor) getRootNode() (taskfile.Node, error) {

node, err := taskfile.NewRootNode(e.Entrypoint, e.Dir, e.Insecure, e.Timeout,

taskfile.WithCACert(e.CACert),

taskfile.WithCert(e.Cert),

taskfile.WithCertKey(e.CertKey),

taskfile.WithHeaders(e.RemoteHeaders),

)

if taskNotFoundError, ok := errors.AsType[errors.TaskfileNotFoundError](err); ok {

taskNotFoundError.AskInit = true

return nil, taskNotFoundError

}

if err != nil {

return nil, err

}

e.Dir = node.Dir()

e.Entrypoint = node.Location()

return node, err

}

func (e *Executor) readTaskfile(node taskfile.Node) error {

ctx, cf := context.WithTimeout(context.Background(), e.Timeout)

defer cf()

debugFunc := func(s string) {

e.Logger.VerboseOutf(logger.Magenta, s)

}

promptFunc := func(s string) error {

return e.Logger.Prompt(logger.Yellow, s, "n", "y", "yes")

}

reader := taskfile.NewReader(

taskfile.WithInsecure(e.Insecure),

taskfile.WithDownload(e.Download),

taskfile.WithOffline(e.Offline),

taskfile.WithTrustedHosts(e.TrustedHosts),

taskfile.WithTempDir(e.TempDir.Remote),

taskfile.WithCacheExpiryDuration(e.CacheExpiryDuration),

taskfile.WithCACert(e.CACert),

taskfile.WithCert(e.Cert),

taskfile.WithCertKey(e.CertKey),

taskfile.WithReaderHeaders(e.RemoteHeaders),

taskfile.WithDebugFunc(debugFunc),

taskfile.WithPromptFunc(promptFunc),

)

graph, err := reader.Read(ctx, node)

if err != nil {

if errors.Is(err, context.DeadlineExceeded) {

return &errors.TaskfileNetworkTimeoutError{URI: node.Location(), Timeout: e.Timeout}

}

return err

}

if e.Taskfile, err = graph.Merge(); err != nil {

return err

}

return nil

}

func (e *Executor) setupFuzzyModel() {

if e.Taskfile == nil {

return

}

model := fuzzy.NewModel()

model.SetThreshold(1) // because we want to build grammar based on every task name

var words []string

for name, task := range e.Taskfile.Tasks.All(nil) {

if task.Internal {

continue

}

words = append(words, name)

words = slices.Concat(words, task.Aliases)

}

model.Train(words)

e.fuzzyModel = model

}

func (e *Executor) setupTempDir() error {

if e.TempDir != (TempDir{}) {

return nil

}

// e.TempDirPath carries the resolved CLI precedence (flag > TASK_TEMP_DIR > taskrc).

tempDir := cmp.Or(e.TempDirPath, ".task")

if filepath.IsAbs(tempDir) || strings.HasPrefix(tempDir, "~") {

tempDir, err := execext.ExpandLiteral(tempDir)

if err != nil {

return err

}

projectDir, _ := filepath.Abs(e.Dir)

projectName := filepath.Base(projectDir)

e.TempDir = TempDir{

Remote: tempDir,

Fingerprint: filepathext.SmartJoin(tempDir, projectName),

}

} else {

e.TempDir = TempDir{

Remote: filepathext.SmartJoin(e.Dir, tempDir),

Fingerprint: filepathext.SmartJoin(e.Dir, tempDir),

}

}

// RemoteCacheDir from taskrc/env can override the remote cache directory

if e.RemoteCacheDir != "" {

if filepath.IsAbs(e.RemoteCacheDir) || strings.HasPrefix(e.RemoteCacheDir, "~") {

remoteCacheDir, err := execext.ExpandLiteral(e.RemoteCacheDir)

if err != nil {

return err

}

e.TempDir.Remote = remoteCacheDir

} else {

e.TempDir.Remote = filepathext.SmartJoin(e.Dir, e.RemoteCacheDir)

}

}

return nil

}

func (e *Executor) setupStdFiles() {

if e.Stdin == nil {

e.Stdin = os.Stdin

}

if e.Stdout == nil {

e.Stdout = os.Stdout

}

if e.Stderr == nil {

e.Stderr = os.Stderr

}

}

func (e *Executor) setupLogger() {

e.Logger = &logger.Logger{

Stdin: e.Stdin,

Stdout: e.Stdout,

Stderr: e.Stderr,

Verbose: e.Verbose,

Color: e.Color,

AssumeYes: e.AssumeYes,

AssumeTerm: e.AssumeTerm,

}

}

func (e *Executor) setupOutput() error {

if !e.OutputStyle.IsSet() {

e.OutputStyle = e.Taskfile.Output

}

var err error

e.Output, err = output.BuildFor(&e.OutputStyle, e.Logger)

return err

}

func (e *Executor) setupCompiler() error {

if e.UserWorkingDir == "" {

var err error

e.UserWorkingDir, err = os.Getwd()

if err != nil {

return err

}

}

e.Compiler = &Compiler{

Dir: e.Dir,

Entrypoint: e.Entrypoint,

UserWorkingDir: e.UserWorkingDir,

TaskfileEnv: e.Taskfile.Env,

TaskfileVars: e.Taskfile.Vars,

Logger: e.Logger,

}

return nil

}

func (e *Executor) readDotEnvFiles() error {

if e.Taskfile == nil || len(e.Taskfile.Dotenv) == 0 {

return nil

}

if e.Taskfile.Version.LessThan(ast.V3) {

return nil

}

vars, err := e.Compiler.GetTaskfileVariables()

if err != nil {

return err

}

env, err := taskfile.Dotenv(vars, e.Taskfile, e.Dir)

if err != nil {

return err

}

for k, v := range env.All() {

if _, ok := e.Taskfile.Env.Get(k); !ok {

e.Taskfile.Env.Set(k, v)

}

}

return err

}

func (e *Executor) setupDefaults() {

if e.Taskfile.Method == "" {

e.Taskfile.Method = "checksum"

}

if e.Taskfile.Run == "" {

e.Taskfile.Run = "always"

}

}

func (e *Executor) setupConcurrencyState() {

e.executionHashes = make(map[string]*executionState)

e.taskCallCount = make(map[string]*int32, e.Taskfile.Tasks.Len())

e.mkdirMutexMap = make(map[string]*sync.Mutex, e.Taskfile.Tasks.Len())

for k := range e.Taskfile.Tasks.Keys(nil) {

e.taskCallCount[k] = new(int32)

e.mkdirMutexMap[k] = &sync.Mutex{}

}

if e.Concurrency > 0 {

e.concurrencySemaphore = make(chan struct{}, e.Concurrency)

}

}

func (e *Executor) doVersionChecks() error {

if !e.EnableVersionCheck {

return nil

}

// Copy the version to avoid modifying the original

schemaVersion := &semver.Version{}

*schemaVersion = *e.Taskfile.Version

// Error if the Taskfile uses a schema version below v3

if schemaVersion.LessThan(ast.V3) {

return &errors.TaskfileVersionCheckError{

URI: e.Taskfile.Location,

SchemaVersion: schemaVersion,

Message: `no longer supported. Please use v3 or above`,

}

}

// Get the current version of Task

// If we can't parse the version (e.g. when its "devel"), then ignore the current version checks

currentVersion, err := semver.NewVersion(version.GetVersion())

if err != nil {

return nil

}

// Error if the Taskfile uses a schema version above the current version of Task

if schemaVersion.GreaterThan(currentVersion) {

return &errors.TaskfileVersionCheckError{

URI: e.Taskfile.Location,

SchemaVersion: schemaVersion,

Message: fmt.Sprintf(`is greater than the current version of Task (%s)`, currentVersion.String()),

}

}

return nil

}