feat: specify --init filename/path (#2018)

* feat: specify init filename with --taskfile flag

previously, it was not possible to specify which filename to use when initializing a new Taskfile as it was hardcoded as "Taskfile.yml".

now the --taskfile flag specifies where to write the file to, and the first * contained in it will be replaced by "Taskfile", so `task -it *.yaml` will create a `Taskfile.yaml` file.

* docs: update CLI reference

* fix Flags header being inside tip admonition
* change -t flag's default column and add a description
* add Default Filenames section

* docs: revert adding Default Filenames section

I didn't realize it already existed elsewhere.

* refactor: use path instead of filepath on InitTaskFile

as requested to prevent ambiguity with the stdlib package.

* fix TestInit (incorrectly merged)

* docs: remove outdated info on --taskfile flag

* refactor task initialization changes

- remove const DefaultTaskInitFilename from taskfile/taskfile.go
- revert description of Entrypoint flag
- make InitTaskfile accept a path to either a file or a directory, and join the default Taskfile name+ext to it if it is a directory
- take the target file path from the first argument instead of the Entrypoint flag
- detect extension-only filenames (".yaml") instead of replacing "*" with "Taskfile"
- use different format in success log so that it makes sense at different paths than the current dir

* print colon instead of "at"

it's a lot cleaner in most cases.

* rewrite init tests

test both initializing to a directory path and a file path

* return final path from InitTaskfile

...and print it's relative representation

* fix lint error (ineffassign)

* use filepathext.TryAbsToRel() instead

* define and use filepathext.IsExtOnly()

* link to default filenames list in cli ref docs

(specifically in the --taskfile flag description)

cmd/task/task.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"os"
+	fp "path/filepath"
 	"strings"
 
 	"github.com/spf13/pflag"
@@ -13,6 +14,7 @@ import (
 	"github.com/go-task/task/v3/args"
 	"github.com/go-task/task/v3/errors"
 	"github.com/go-task/task/v3/internal/experiments"
+	"github.com/go-task/task/v3/internal/filepathext"
 	"github.com/go-task/task/v3/internal/flags"
 	"github.com/go-task/task/v3/internal/logger"
 	"github.com/go-task/task/v3/internal/sort"
@@ -77,18 +79,28 @@ func run() error {
 		if err != nil {
 			return err
 		}
-
-		if err := task.InitTaskfile(os.Stdout, wd); err != nil {
+		args, _, err := getArgs()
+		if err != nil {
+			return err
+		}
+		path := wd
+		if len(args) > 0 {
+			name := args[0]
+			if filepathext.IsExtOnly(name) {
+				name = filepathext.SmartJoin(fp.Dir(name), "Taskfile"+fp.Ext(name))
+			}
+			path = filepathext.SmartJoin(wd, name)
+		}
+		finalPath, err := task.InitTaskfile(os.Stdout, path)
+		if err != nil {
 			return err
 		}
-
 		if !flags.Silent {
 			if flags.Verbose {
 				log.Outf(logger.Default, "%s\n", task.DefaultTaskfile)
 			}
-			log.Outf(logger.Green, "%s created in the current directory\n", task.DefaultTaskFilename)
+			log.Outf(logger.Green, "Taskfile created: %s\n", filepathext.TryAbsToRel(finalPath))
 		}
-
 		return nil
 	}
 

init.go

@@ -24,17 +24,29 @@ tasks:
 
 const DefaultTaskFilename = "Taskfile.yml"
 
-// InitTaskfile creates a new Taskfile
-func InitTaskfile(w io.Writer, dir string) error {
-	f := filepathext.SmartJoin(dir, DefaultTaskFilename)
+// InitTaskfile creates a new Taskfile at path.
+//
+// path can be either a file path or a directory path.
+// If path is a directory, path/Taskfile.yml will be created.
+//
+// The final file path is always returned and may be different from the input path.
+func InitTaskfile(w io.Writer, path string) (string, error) {
+	fi, err := os.Stat(path)
+	if err == nil && !fi.IsDir() {
+		return path, errors.TaskfileAlreadyExistsError{}
+	}
 
-	if _, err := os.Stat(f); err == nil {
-		return errors.TaskfileAlreadyExistsError{}
+	if fi != nil && fi.IsDir() {
+		path = filepathext.SmartJoin(path, DefaultTaskFilename)
+		// path was a directory, so check if Taskfile.yml exists in it
+		if _, err := os.Stat(path); err == nil {
+			return path, errors.TaskfileAlreadyExistsError{}
+		}
 	}
 
-	if err := os.WriteFile(f, []byte(DefaultTaskfile), 0o644); err != nil {
-		return err
+	if err := os.WriteFile(path, []byte(DefaultTaskfile), 0o644); err != nil {
+		return path, err
 	}
 
-	return nil
+	return path, nil
 }

init_test.go

@@ -9,7 +9,7 @@ import (
 	"github.com/go-task/task/v3/internal/filepathext"
 )
 
-func TestInit(t *testing.T) {
+func TestInitDir(t *testing.T) {
 	t.Parallel()
 
 	const dir = "testdata/init"
@@ -20,12 +20,34 @@ func TestInit(t *testing.T) {
 		t.Errorf("Taskfile.yml should not exist")
 	}
 
-	if err := task.InitTaskfile(io.Discard, dir); err != nil {
+	if _, err := task.InitTaskfile(io.Discard, dir); err != nil {
 		t.Error(err)
 	}
 
 	if _, err := os.Stat(file); err != nil {
 		t.Errorf("Taskfile.yml should exist")
 	}
+
+	_ = os.Remove(file)
+}
+
+func TestInitFile(t *testing.T) {
+	t.Parallel()
+
+	const dir = "testdata/init"
+	file := filepathext.SmartJoin(dir, "Tasks.yml")
+
+	_ = os.Remove(file)
+	if _, err := os.Stat(file); err == nil {
+		t.Errorf("Tasks.yml should not exist")
+	}
+
+	if _, err := task.InitTaskfile(io.Discard, file); err != nil {
+		t.Error(err)
+	}
+
+	if _, err := os.Stat(file); err != nil {
+		t.Errorf("Tasks.yml should exist")
+	}
 	_ = os.Remove(file)
 }

internal/filepathext/filepathext.go

@@ -55,3 +55,9 @@ func TryAbsToRel(abs string) string {
 
 	return rel
 }
+
+// IsExtOnly checks whether path points to a file with no name but with
+// an extension, i.e. ".yaml"
+func IsExtOnly(path string) bool {
+	return filepath.Base(path) == filepath.Ext(path)
+}

website/docs/reference/cli.mdx

@@ -16,10 +16,10 @@ task [--flags] [tasks...] [-- CLI_ARGS...]
 If `--` is given, all remaining arguments will be assigned to a special
 `CLI_ARGS` variable
 
-## Flags
-
 :::
 
+## Flags
+
 | Short | Flag                        | Type     | Default                                      | Description                                                                                                                                                                                  |
 | ----- | --------------------------- | -------- | -------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
 | `-c`  | `--color`                   | `bool`   | `true`                                       | Colored output. Enabled by default. Set flag to `false` or use `NO_COLOR=1` to disable.                                                                                                      |
@@ -45,7 +45,7 @@ If `--` is given, all remaining arguments will be assigned to a special
 | `-y`  | `--yes`                     | `bool`   | `false`                                      | Assume "yes" as answer to all prompts.                                                                                                                                                       |
 |       | `--status`                  | `bool`   | `false`                                      | Exits with non-zero exit code if any of the given tasks is not up-to-date.                                                                                                                   |
 |       | `--summary`                 | `bool`   | `false`                                      | Show summary about a task.                                                                                                                                                                   |
-| `-t`  | `--taskfile`                | `string` | `Taskfile.yml` or `Taskfile.yaml`            |                                                                                                                                                                                              |
+| `-t`  | `--taskfile`                | `string` |                                              | Taskfile path to run.<br />Check the list of default filenames [here](../usage/#supported-file-names).                                                                                        |
 | `-v`  | `--verbose`                 | `bool`   | `false`                                      | Enables verbose mode.                                                                                                                                                                        |
 |       | `--version`                 | `bool`   | `false`                                      | Show Task version.                                                                                                                                                                           |
 | `-w`  | `--watch`                   | `bool`   | `false`                                      | Enables watch of the given task.