feat: implement Java local testing

.github/workflows/release.yaml

@@ -62,3 +62,27 @@ jobs:
         env:
           RUST_BACKTRACE: 1
           CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}
+
+  release_maven:
+    runs-on: ubuntu-latest
+    if: "startsWith(github.ref, 'refs/tags/testutils/java/v')"
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-java@v4
+        with:
+          java-version: '11'
+          distribution: 'temurin'
+          server-id: 'central'
+          server-username: MAVEN_USERNAME
+          server-password: MAVEN_CENTRAL_TOKEN
+          gpg-private-key: ${{ secrets.MAVEN_GPG_PRIVATE_KEY }}
+          gpg-passphrase: MAVEN_GPG_PASSPHRASE
+
+      - name: Publish to Apache Maven Central
+        working-directory: testutils/java
+        env:
+          MAVEN_USERNAME: ${{ secrets.MAVEN_USERNAME }}
+          MAVEN_CENTRAL_TOKEN: ${{ secrets.MAVEN_CENTRAL_TOKEN }}
+          MAVEN_GPG_PASSPHRASE: ""
+        run:
+          ./mvnw clean deploy -DskipTests=true

.gitignore

@@ -10,3 +10,6 @@ go.work
 go.work.sum
 misc/*.gif
 misc/questions.json
+
+testutils/java/target/
+testutils/java/.idea/

.goreleaser.yaml

@@ -1,6 +1,7 @@
 before:
   hooks:
     - go mod tidy
+    - go generate ./...
     - ./scripts/completions.sh
 builds:
   - env:
@@ -12,6 +13,9 @@ builds:
     goarch:
       - amd64
       - arm64
+    ignore:
+      - goos: linux
+        goarch: arm64
     flags:
       - -v
       - -trimpath

Makefile

@@ -13,3 +13,7 @@ release-pypi:
 release-cargo:
 	git tag -a $(shell svu patch --prefix 'testutils/rust/')
 	git push --tags
+
+release-maven:
+	git tag -a $(shell svu patch --prefix 'testutils/java/')
+	git push --tags

README.md

@@ -83,7 +83,7 @@ Local testing requires more work to implement for each language, so not all lang
 | Python | :white_check_mark: | :white_check_mark: |
 | C++ | :white_check_mark: | :white_check_mark: |
 | Rust | :white_check_mark: | :white_check_mark: |
-| Java | :white_check_mark: | Not yet |
+| Java | :white_check_mark: | :white_check_mark: |
 | JavaScript | :white_check_mark: | Not yet |
 | TypeScript | :white_check_mark: | Not yet |
 | PHP | :white_check_mark: | Not yet |
@@ -150,7 +150,7 @@ Available Commands:
 
 Flags:
   -v, --version       version for leetgo
-  -l, --lang string   language of code to generate: cpp, go, python ...
+  -l, --lang string   language of code to generate: cpp, go, python, java...
       --site string   leetcode site: cn, us
   -y, --yes           answer yes to all prompts
   -h, --help          help for leetgo
@@ -200,7 +200,7 @@ author: Bob
 # Language of the question description: zh or en
 language: zh
 code:
-  # Language of code generated for questions: go, cpp, python, java... 
+  # Language of code generated for questions: cpp, python, go, java... 
   # (will be overridden by command line flag -l/--lang)
   lang: go
   # The default template to generate filename (without extension), e.g. {{.Id}}.{{.Slug}}
@@ -234,6 +234,10 @@ code:
     out_dir: rust
   java:
     out_dir: java
+    # Overrides the default code.filename_template, empty will be ignored
+    filename_template: p{{ .Id | padWithZero 4 }}{{ if .SlugIsMeaningful }}_{{ .Slug | lower | toUnderscore }}{{ end }}
+    # Maven group ID
+    group_id: ""
 leetcode:
   # LeetCode site, https://leetcode.com or https://leetcode.cn
   site: https://leetcode.cn

README_zh.md

@@ -81,7 +81,7 @@ func main() {
 | Python | :white_check_mark: | :white_check_mark: |
 | C++ | :white_check_mark: | :white_check_mark: |
 | Rust | :white_check_mark: | :white_check_mark: |
-| Java | :white_check_mark: | Not yet |
+| Java | :white_check_mark: | :white_check_mark: |
 | JavaScript | :white_check_mark: | Not yet |
 | TypeScript | :white_check_mark: | Not yet |
 | PHP | :white_check_mark: | Not yet |
@@ -148,7 +148,7 @@ Available Commands:
 
 Flags:
   -v, --version       version for leetgo
-  -l, --lang string   language of code to generate: cpp, go, python ...
+  -l, --lang string   language of code to generate: cpp, go, python, java...
       --site string   leetcode site: cn, us
   -y, --yes           answer yes to all prompts
   -h, --help          help for leetgo
@@ -193,7 +193,7 @@ author: Bob
 # Language of the question description: zh or en
 language: zh
 code:
-  # Language of code generated for questions: go, cpp, python, java... 
+  # Language of code generated for questions: cpp, python, go, java... 
   # (will be overridden by command line flag -l/--lang)
   lang: go
   # The default template to generate filename (without extension), e.g. {{.Id}}.{{.Slug}}
@@ -227,6 +227,10 @@ code:
     out_dir: rust
   java:
     out_dir: java
+    # Overrides the default code.filename_template, empty will be ignored
+    filename_template: p{{ .Id | padWithZero 4 }}{{ if .SlugIsMeaningful }}_{{ .Slug | lower | toUnderscore }}{{ end }}
+    # Maven group ID
+    group_id: ""
 leetcode:
   # LeetCode site, https://leetcode.com or https://leetcode.cn
   site: https://leetcode.cn

cmd/root.go

@@ -103,7 +103,7 @@ func initCommands() {
 	rootCmd.SetOut(os.Stdout)
 	rootCmd.InitDefaultVersionFlag()
 	rootCmd.Flags().SortFlags = false
-	rootCmd.PersistentFlags().StringP("lang", "l", "", "language of code to generate: cpp, go, python ...")
+	rootCmd.PersistentFlags().StringP("lang", "l", "", "language of code to generate: cpp, go, python, java...")
 	rootCmd.PersistentFlags().StringP("site", "", "", "leetcode site: cn, us")
 	rootCmd.PersistentFlags().BoolP("yes", "y", false, "answer yes to all prompts")
 	rootCmd.InitDefaultHelpFlag()

config/config.go

@@ -70,16 +70,16 @@ type Modifier struct {
 }
 
 type CodeConfig struct {
-	Lang                    string         `yaml:"lang" mapstructure:"lang" comment:"Language of code generated for questions: go, cpp, python, java... \n(will be overridden by command line flag -l/--lang)"`
-	FilenameTemplate        string         `yaml:"filename_template" mapstructure:"filename_template" comment:"The default template to generate filename (without extension), e.g. {{.Id}}.{{.Slug}}\nAvailable attributes: Id, Slug, Title, Difficulty, Lang, SlugIsMeaningful\nAvailable functions: lower, upper, trim, padWithZero, toUnderscore, group"`
-	SeparateDescriptionFile bool           `yaml:"separate_description_file" mapstructure:"separate_description_file" comment:"Generate question description into a separate question.md file"`
-	Blocks                  []Block        `yaml:"blocks,omitempty" mapstructure:"blocks" comment:"Default block definitions for all languages"`
-	Modifiers               []Modifier     `yaml:"modifiers,omitempty" mapstructure:"modifiers" comment:"Default modifiers for all languages"`
-	Go                      GoConfig       `yaml:"go" mapstructure:"go"`
-	Python                  PythonConfig   `yaml:"python3" mapstructure:"python3"`
-	Cpp                     CppConfig      `yaml:"cpp" mapstructure:"cpp"`
-	Rust                    RustConfig     `yaml:"rust" mapstructure:"rust"`
-	Java                    BaseLangConfig `yaml:"java" mapstructure:"java"`
+	Lang                    string       `yaml:"lang" mapstructure:"lang" comment:"Language of code generated for questions: cpp, python, go, java... \n(will be overridden by command line flag -l/--lang)"`
+	FilenameTemplate        string       `yaml:"filename_template" mapstructure:"filename_template" comment:"The default template to generate filename (without extension), e.g. {{.Id}}.{{.Slug}}\nAvailable attributes: Id, Slug, Title, Difficulty, Lang, SlugIsMeaningful\nAvailable functions: lower, upper, trim, padWithZero, toUnderscore, group"`
+	SeparateDescriptionFile bool         `yaml:"separate_description_file" mapstructure:"separate_description_file" comment:"Generate question description into a separate question.md file"`
+	Blocks                  []Block      `yaml:"blocks,omitempty" mapstructure:"blocks" comment:"Default block definitions for all languages"`
+	Modifiers               []Modifier   `yaml:"modifiers,omitempty" mapstructure:"modifiers" comment:"Default modifiers for all languages"`
+	Go                      GoConfig     `yaml:"go" mapstructure:"go"`
+	Python                  PythonConfig `yaml:"python3" mapstructure:"python3"`
+	Cpp                     CppConfig    `yaml:"cpp" mapstructure:"cpp"`
+	Rust                    RustConfig   `yaml:"rust" mapstructure:"rust"`
+	Java                    JavaConfig   `yaml:"java" mapstructure:"java"`
 	// Add more languages here
 }
 
@@ -110,6 +110,11 @@ type RustConfig struct {
 	BaseLangConfig `yaml:",inline" mapstructure:",squash"`
 }
 
+type JavaConfig struct {
+	BaseLangConfig `yaml:",inline" mapstructure:",squash"`
+	GroupID        string `yaml:"group_id" mapstructure:"group_id" comment:"Maven group ID"`
+}
+
 type Credentials struct {
 	From     string   `yaml:"from" mapstructure:"from" comment:"How to provide credentials: browser, cookies, password or none"`
 	Browsers []string `yaml:"browsers" mapstructure:"browsers" comment:"Browsers to get cookies from: chrome, safari, edge or firefox. If empty, all browsers will be tried"`
@@ -219,7 +224,12 @@ func defaultConfig() *Config {
 				BaseLangConfig: BaseLangConfig{OutDir: "python"},
 				Executable:     constants.DefaultPython,
 			},
-			Java: BaseLangConfig{OutDir: "java"},
+			Java: JavaConfig{
+				BaseLangConfig: BaseLangConfig{
+					OutDir:           "java",
+					FilenameTemplate: `p{{ .Id | padWithZero 4 }}{{ if .SlugIsMeaningful }}_{{ .Slug | lower | toUnderscore }}{{ end }}`,
+				},
+			},
 			Rust: RustConfig{BaseLangConfig: BaseLangConfig{OutDir: "rust"}},
 			// Add more languages here
 		},

constants/constants.go

@@ -17,4 +17,5 @@ const (
 	GoTestUtilsModPath    = "github.com/j178/leetgo/testutils/go"
 	RustTestUtilsCrate    = "leetgo_rs"
 	PythonTestUtilsMode   = "leetgo_py"
+	JavaTestUtilsGroupId  = "io.github.j178"
 )

lang/cpp.go

@@ -10,7 +10,7 @@ import (
 	"github.com/j178/leetgo/config"
 	"github.com/j178/leetgo/constants"
 	"github.com/j178/leetgo/leetcode"
-	cppUtils "github.com/j178/leetgo/testutils/cpp"
+	cppEmbed "github.com/j178/leetgo/testutils/cpp"
 	"github.com/j178/leetgo/utils"
 )
 
@@ -19,21 +19,21 @@ type cpp struct {
 }
 
 func (c cpp) Initialize(outDir string) error {
-	headerPath := filepath.Join(outDir, cppUtils.HeaderName)
-	err := utils.WriteFile(headerPath, cppUtils.HeaderContent)
+	headerPath := filepath.Join(outDir, cppEmbed.HeaderName)
+	err := utils.WriteFile(headerPath, cppEmbed.HeaderContent)
 	if err != nil {
 		return err
 	}
 	stdCxxPath := filepath.Join(outDir, "bits", "stdc++.h")
-	err = utils.WriteFile(stdCxxPath, cppUtils.StdCxxContent)
+	err = utils.WriteFile(stdCxxPath, cppEmbed.StdCxxContent)
 	if err != nil {
 		return err
 	}
 	return nil
 }
 
 func (c cpp) HasInitialized(outDir string) (bool, error) {
-	headerPath := filepath.Join(outDir, cppUtils.HeaderName)
+	headerPath := filepath.Join(outDir, cppEmbed.HeaderName)
 	if !utils.IsExist(headerPath) {
 		return false, nil
 	}
@@ -278,7 +278,7 @@ func (c cpp) generateCodeFile(
 #include "%s"
 using namespace std;
 
-`, cppUtils.HeaderName,
+`, cppEmbed.HeaderName,
 	)
 	testContent, err := c.generateTestContent(q)
 	if err != nil {