feat(indent): add basic java indentation queries (helix-editor#7844)

book/src/generated/lang-support.md

@@ -69,7 +69,7 @@
 | idris |  |  |  | `idris2-lsp` |
 | iex | ✓ |  |  |  |
 | ini | ✓ |  |  |  |
-| java | ✓ | ✓ |  | `jdtls` |
+| java | ✓ | ✓ | ✓ | `jdtls` |
 | javascript | ✓ | ✓ | ✓ | `typescript-language-server` |
 | jsdoc | ✓ |  |  |  |
 | json | ✓ |  | ✓ | `vscode-json-language-server` |

languages.toml

@@ -833,7 +833,7 @@ injection-regex = "java"
 file-types = ["java"]
 roots = ["pom.xml", "build.gradle", "build.gradle.kts"]
 language-servers = [ "jdtls" ]
-indent = { tab-width = 4, unit = "    " }
+indent = { tab-width = 2, unit = "  " }
 
 [[grammar]]
 name = "java"

runtime/queries/java/indents.scm

@@ -0,0 +1,35 @@
+[
+  (class_body)
+  (enum_body)
+  (interface_body)
+  (constructor_body)
+  (annotation_type_body)
+  (module_body)
+  (block)
+  (switch_block)
+  (array_initializer)
+  (argument_list)
+  (formal_parameters)
+  (annotation_argument_list)
+  (element_value_array_initializer)
+] @indent
+
+[
+  "}"
+  ")"
+  "]"
+] @outdent
+
+; Single statement after if/while/for without brackets
+(if_statement
+  consequence: (_) @indent
+  (#not-kind-eq? @indent "block")
+  (#set! "scope" "all"))
+(while_statement
+  body: (_) @indent
+  (#not-kind-eq? @indent "block")
+  (#set! "scope" "all"))
+(for_statement
+  (_) @indent
+  (#not-kind-eq? @indent "block")
+  (#set! "scope" "all"))