Type configs using literal types

By using `as const` on the string values for each of the rule configs,
we ensure that the generated rules have string literal types matching
their configured values.

Fixes #181

Author: ethanwu10

lib/configs/addon-interactions.ts

@@ -15,13 +15,13 @@ export = {
         'storybook/context-in-play-function': 'error',
         'storybook/use-storybook-expect': 'error',
         'storybook/use-storybook-testing-library': 'error',
-      },
+      } as const,
     },
     {
       files: ['.storybook/main.@(js|cjs|mjs|ts)'],
       rules: {
         'storybook/no-uninstalled-addons': 'error',
-      },
+      } as const,
     },
   ],
 }

lib/configs/csf-strict.ts

@@ -10,5 +10,5 @@ export = {
     'import/no-anonymous-default-export': 'off',
     'storybook/no-stories-of': 'error',
     'storybook/no-title-property-in-meta': 'error',
-  },
+  } as const,
 }

lib/configs/csf.ts

@@ -16,13 +16,13 @@ export = {
         'storybook/hierarchy-separator': 'warn',
         'storybook/no-redundant-story-name': 'warn',
         'storybook/story-exports': 'error',
-      },
+      } as const,
     },
     {
       files: ['.storybook/main.@(js|cjs|mjs|ts)'],
       rules: {
         'storybook/no-uninstalled-addons': 'error',
-      },
+      } as const,
     },
   ],
 }

lib/configs/flat/addon-interactions.ts

@@ -23,13 +23,13 @@ export = [
       'storybook/context-in-play-function': 'error',
       'storybook/use-storybook-expect': 'error',
       'storybook/use-storybook-testing-library': 'error',
-    },
+    } as const,
   },
   {
     name: 'storybook:addon-interactions:main-rules',
     files: ['.storybook/main.@(js|cjs|mjs|ts)'],
     rules: {
       'storybook/no-uninstalled-addons': 'error',
-    },
+    } as const,
   },
 ]

lib/configs/flat/csf-strict.ts

@@ -14,6 +14,6 @@ export = [
       'import/no-anonymous-default-export': 'off',
       'storybook/no-stories-of': 'error',
       'storybook/no-title-property-in-meta': 'error',
-    },
+    } as const,
   },
 ]

lib/configs/flat/csf.ts

@@ -24,13 +24,13 @@ export = [
       'storybook/hierarchy-separator': 'warn',
       'storybook/no-redundant-story-name': 'warn',
       'storybook/story-exports': 'error',
-    },
+    } as const,
   },
   {
     name: 'storybook:csf:main-rules',
     files: ['.storybook/main.@(js|cjs|mjs|ts)'],
     rules: {
       'storybook/no-uninstalled-addons': 'error',
-    },
+    } as const,
   },
 ]

lib/configs/flat/recommended.ts

@@ -28,13 +28,13 @@ export = [
       'storybook/story-exports': 'error',
       'storybook/use-storybook-expect': 'error',
       'storybook/use-storybook-testing-library': 'error',
-    },
+    } as const,
   },
   {
     name: 'storybook:recommended:main-rules',
     files: ['.storybook/main.@(js|cjs|mjs|ts)'],
     rules: {
       'storybook/no-uninstalled-addons': 'error',
-    },
+    } as const,
   },
 ]

lib/configs/recommended.ts

@@ -20,13 +20,13 @@ export = {
         'storybook/story-exports': 'error',
         'storybook/use-storybook-expect': 'error',
         'storybook/use-storybook-testing-library': 'error',
-      },
+      } as const,
     },
     {
       files: ['.storybook/main.@(js|cjs|mjs|ts)'],
       rules: {
         'storybook/no-uninstalled-addons': 'error',
-      },
+      } as const,
     },
   ],
 }

tools/utils/updates.ts

@@ -22,13 +22,13 @@ export function formatRules(rules: TCategory['rules'], exclude?: string[]) {
     { ...externalRuleOverrides }
   )
 
-  return JSON.stringify(obj, null, 2)
+  return JSON.stringify(obj, null, 2) + ' as const'
 }
 
 export function formatSingleRule(rules: TCategory['rules'], ruleId: string) {
   const ruleOpt = rules.find((rule) => rule.ruleId === ruleId)?.meta.severity || 'error'
 
-  return JSON.stringify({ [ruleId]: ruleOpt }, null, 2)
+  return JSON.stringify({ [ruleId]: ruleOpt }, null, 2) + ' as const'
 }
 
 export const SUPPORTED_EXTENSIONS = ['ts', 'tsx', 'js', 'jsx', 'mjs', 'cjs']