Add js.Batch

Fixes #12626
Closes #7499
Closes #9978
Closes #12879
Closes #13113
Fixes #13116

1 files changed, 219 insertions, 0 deletions

diff --git a/internal/js/esbuild/options_test.go b/internal/js/esbuild/options_test.go
new file mode 100644
index 000000000..ca19717f7
--- /dev/null
+++ b/internal/js/esbuild/options_test.go
@@ -0,0 +1,219 @@
+// Copyright 2024 The Hugo Authors. All rights reserved.
+//
+// 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 esbuild
+
+import (
+	"testing"
+
+	"github.com/gohugoio/hugo/media"
+
+	"github.com/evanw/esbuild/pkg/api"
+
+	qt "github.com/frankban/quicktest"
+)
+
+func TestToBuildOptions(t *testing.T) {
+	c := qt.New(t)
+
+	opts := Options{
+		InternalOptions: InternalOptions{
+			MediaType: media.Builtin.JavascriptType,
+			Stdin:     true,
+		},
+	}
+
+	c.Assert(opts.compile(), qt.IsNil)
+	c.Assert(opts.compiled, qt.DeepEquals, api.BuildOptions{
+		Bundle:         true,
+		Target:         api.ESNext,
+		Format:         api.FormatIIFE,
+		SourcesContent: 1,
+		Stdin: &api.StdinOptions{
+			Loader: api.LoaderJS,
+		},
+	})
+
+	opts = Options{
+		ExternalOptions: ExternalOptions{
+			Target:   "es2018",
+			Format:   "cjs",
+			Minify:   true,
+			AvoidTDZ: true,
+		},
+		InternalOptions: InternalOptions{
+			MediaType: media.Builtin.JavascriptType,
+			Stdin:     true,
+		},
+	}
+
+	c.Assert(opts.compile(), qt.IsNil)
+	c.Assert(opts.compiled, qt.DeepEquals, api.BuildOptions{
+		Bundle:            true,
+		Target:            api.ES2018,
+		Format:            api.FormatCommonJS,
+		SourcesContent:    1,
+		MinifyIdentifiers: true,
+		MinifySyntax:      true,
+		MinifyWhitespace:  true,
+		Stdin: &api.StdinOptions{
+			Loader: api.LoaderJS,
+		},
+	})
+
+	opts = Options{
+		ExternalOptions: ExternalOptions{
+			Target: "es2018", Format: "cjs", Minify: true,
+			SourceMap: "inline",
+		},
+		InternalOptions: InternalOptions{
+			MediaType: media.Builtin.JavascriptType,
+			Stdin:     true,
+		},
+	}
+
+	c.Assert(opts.compile(), qt.IsNil)
+	c.Assert(opts.compiled, qt.DeepEquals, api.BuildOptions{
+		Bundle:            true,
+		Target:            api.ES2018,
+		Format:            api.FormatCommonJS,
+		MinifyIdentifiers: true,
+		MinifySyntax:      true,
+		MinifyWhitespace:  true,
+		SourcesContent:    1,
+		Sourcemap:         api.SourceMapInline,
+		Stdin: &api.StdinOptions{
+			Loader: api.LoaderJS,
+		},
+	})
+
+	opts = Options{
+		ExternalOptions: ExternalOptions{
+			Target: "es2018", Format: "cjs", Minify: true,
+			SourceMap: "inline",
+		},
+		InternalOptions: InternalOptions{
+			MediaType: media.Builtin.JavascriptType,
+			Stdin:     true,
+		},
+	}
+
+	c.Assert(opts.compile(), qt.IsNil)
+	c.Assert(opts.compiled, qt.DeepEquals, api.BuildOptions{
+		Bundle:            true,
+		Target:            api.ES2018,
+		Format:            api.FormatCommonJS,
+		MinifyIdentifiers: true,
+		MinifySyntax:      true,
+		MinifyWhitespace:  true,
+		Sourcemap:         api.SourceMapInline,
+		SourcesContent:    1,
+		Stdin: &api.StdinOptions{
+			Loader: api.LoaderJS,
+		},
+	})
+
+	opts = Options{
+		ExternalOptions: ExternalOptions{
+			Target: "es2018", Format: "cjs", Minify: true,
+			SourceMap: "external",
+		},
+		InternalOptions: InternalOptions{
+			MediaType: media.Builtin.JavascriptType,
+			Stdin:     true,
+		},
+	}
+
+	c.Assert(opts.compile(), qt.IsNil)
+	c.Assert(opts.compiled, qt.DeepEquals, api.BuildOptions{
+		Bundle:            true,
+		Target:            api.ES2018,
+		Format:            api.FormatCommonJS,
+		MinifyIdentifiers: true,
+		MinifySyntax:      true,
+		MinifyWhitespace:  true,
+		Sourcemap:         api.SourceMapExternal,
+		SourcesContent:    1,
+		Stdin: &api.StdinOptions{
+			Loader: api.LoaderJS,
+		},
+	})
+
+	opts = Options{
+		ExternalOptions: ExternalOptions{
+			JSX: "automatic", JSXImportSource: "preact",
+		},
+		InternalOptions: InternalOptions{
+			MediaType: media.Builtin.JavascriptType,
+			Stdin:     true,
+		},
+	}
+
+	c.Assert(opts.compile(), qt.IsNil)
+	c.Assert(opts.compiled, qt.DeepEquals, api.BuildOptions{
+		Bundle:         true,
+		Target:         api.ESNext,
+		Format:         api.FormatIIFE,
+		SourcesContent: 1,
+		Stdin: &api.StdinOptions{
+			Loader: api.LoaderJS,
+		},
+		JSX:             api.JSXAutomatic,
+		JSXImportSource: "preact",
+	})
+}
+
+func TestToBuildOptionsTarget(t *testing.T) {
+	c := qt.New(t)
+
+	for _, test := range []struct {
+		target string
+		expect api.Target
+	}{
+		{"es2015", api.ES2015},
+		{"es2016", api.ES2016},
+		{"es2017", api.ES2017},
+		{"es2018", api.ES2018},
+		{"es2019", api.ES2019},
+		{"es2020", api.ES2020},
+		{"es2021", api.ES2021},
+		{"es2022", api.ES2022},
+		{"es2023", api.ES2023},
+		{"", api.ESNext},
+		{"esnext", api.ESNext},
+	} {
+		c.Run(test.target, func(c *qt.C) {
+			opts := Options{
+				ExternalOptions: ExternalOptions{
+					Target: test.target,
+				},
+				InternalOptions: InternalOptions{
+					MediaType: media.Builtin.JavascriptType,
+				},
+			}
+
+			c.Assert(opts.compile(), qt.IsNil)
+			c.Assert(opts.compiled.Target, qt.Equals, test.expect)
+		})
+	}
+}
+
+func TestDecodeExternalOptions(t *testing.T) {
+	c := qt.New(t)
+	m := map[string]any{}
+	opts, err := DecodeExternalOptions(m)
+	c.Assert(err, qt.IsNil)
+	c.Assert(opts, qt.DeepEquals, ExternalOptions{
+		SourcesContent: true,
+	})
+}