{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$ref": "#/definitions/Project",
  "definitions": {
    "Project": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "ruleDirs": {
          "type": "array",
          "items": {
            "type": "string"
          },
          "title": "Rule directories",
          "description": "A list of string instructing where to discover ast-grep's YAML rules."
        },
        "testConfigs": {
          "type": "array",
          "items": {
            "$ref": "#/definitions/TestConfig"
          },
          "title": "Test configurations",
          "description": "A list of object to configure ast-grep's test cases. Each object can have two fields."
        },
        "utilDirs": {
          "type": "array",
          "items": {
            "type": "string"
          },
          "title": "Utility directories",
          "description": "A list of string instructing where to discover ast-grep's global utility rules."
        },
        "languageGlobs": {
          "type": "object",
          "additionalProperties": {
            "type": "array",
            "items": {
              "type": "string"
            }
          },
          "description": "A mapping to associate a language to files that have non-standard extensions or syntaxes."
        },
        "customLanguages": {
          "type": "object",
          "additionalProperties": {
            "$ref": "#/definitions/CustomLanguage"
          },
          "description": "A dictionary of custom languages in the project."
        },
        "languageInjections": {
          "type": "array",
          "items": {
            "$ref": "#/definitions/LanguageInjection"
          },
          "description": "A list of language injections to support embedded languages in the project like JS/CSS in HTML. This is an experimental feature."
        }
      },
      "required": ["ruleDirs"],
      "title": "ast-grep project configuration"
    },
    "TestConfig": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "testDir": {
          "type": "string",
          "description": "A string specifies where to discover test cases for ast-grep."
        },
        "snapshotDir": {
          "type": "string",
          "description": "A string path relative to testDir that specifies where to store test snapshots for ast-grep. You can think it like __snapshots___ in popular test framework like jest. If this option is not specified, ast-grep will store the snapshot under the __snapshots__ folder under the testDir."
        }
      },
      "required": ["testDir"],
      "title": "Test configuration"
    },
    "CustomLanguage": {
      "type": "object",
      "properties": {
        "libraryPath": {
          "type": ["string", "object"],
          "description": "The path to the tree-sitter dynamic library of the language."
        },
        "extensions": {
          "type": "array",
          "items": {
            "type": "string"
          },
          "description": "The file extensions for this language."
        },
        "expandoChar": {
          "type": "string",
          "description": "An optional char to replace $ in your pattern."
        },
        "languageSymbol": {
          "type": "string",
          "description": "The dylib symbol to load ts-language, default is tree_sitter_{name}"
        },
        "outlineRules": {
          "type": "string",
          "description": "The path to the YAML file containing outline rules for this custom language."
        }
      },
      "required": ["libraryPath", "extensions"]
    },
    "LanguageInjection": {
      "type": "object",
      "description": "A list of language injections to support embedded languages in the project like JS/CSS in HTML. This is an experimental feature.",
      "properties": {
        "hostLanguage": {
          "type": "string",
          "description": "The host language name, e.g. html. This is the language of documents that contains the embedded language code."
        },
        "rule": {
          "$ref": "./rule.json#/$defs/SerializableRule",
          "description": "Defines the ast-grep rule to identify the injected language region within the host language documents."
        },
        "injected": {
          "oneOf": [
            { "type": "string" },
            {
              "type": "array",
              "items": { "type": "string" }
            }
          ],
          "description": "The injected language name"
        }
      },
      "required": ["hostLanguage", "rule", "injected"]
    }
  }
}