Added the langium module for gitGraph

packages/parser/src/language/gitGraph/gitGraph.langium

@@ -0,0 +1,84 @@
+grammar GitGraph
+
+import "../common/common";
+entry GitGraph:
+  NEWLINE*
+  'gitGraph' Direction? ':'?
+  NEWLINE*
+  (
+    Options?
+    NEWLINE*
+    (TitleAndAccessibilities |
+    statements+=Statement |
+     NEWLINE)*
+  )
+;
+
+Statement
+: Commit
+| Branch
+| Merge 
+| Checkout 
+| CherryPicking
+;
+
+
+Options:
+    'options' '{' rawOptions+=STRING* '}' EOL;
+
+Direction:
+    dir=('LR' | 'TB' | 'BT') EOL;
+
+Commit:
+    'commit' properties+=CommitProperty* EOL;
+
+CommitProperty
+: CommitId
+| CommitMessage
+| Tags
+| CommitType
+;
+
+CommitId:
+    'id:' id=STRING;
+
+CommitMessage:
+    'msg:'? message=STRING;
+
+Tags:
+    'tag:' tags=STRING;
+
+CommitType:
+    'type:' name=('NORMAL' | 'REVERSE' | 'HIGHLIGHT');
+
+Branch:
+    'branch' name=(ID|STRING) ('order:' order=INT)? EOL;
+
+Merge:
+    'merge' name=(ID|STRING) properties+=MergeProperties*  EOL;
+
+MergeProperties
+: CommitId
+| Tags
+| CommitType
+;
+
+Checkout:
+    ('checkout'|'switch') id=(ID|STRING) EOL;
+
+CherryPicking:
+    'cherry-pick' properties+=CherryPickProperties* EOL;
+
+CherryPickProperties
+: CommitId
+| Tags
+| ParentCommit
+;
+
+ParentCommit:
+    'parent:' id=STRING;
+
+terminal INT returns number: /[0-9]+(?=\s)/;
+terminal ID returns string: /\w([-\./\w]*[-\w])?/;
+terminal STRING: /"[^"]*"|'[^']*'/;
+

packages/parser/src/language/gitGraph/index.ts

@@ -0,0 +1 @@
+export * from './module.js';

packages/parser/src/language/gitGraph/module.ts

@@ -0,0 +1,53 @@
+import type {
+  DefaultSharedCoreModuleContext,
+  LangiumCoreServices,
+  LangiumSharedCoreServices,
+  Module,
+  PartialLangiumCoreServices,
+} from 'langium';
+import {
+  inject,
+  createDefaultCoreModule,
+  createDefaultSharedCoreModule,
+  EmptyFileSystem,
+} from 'langium';
+
+import { CommonValueConverter } from '../common/valueConverter.js';
+import { MermaidGeneratedSharedModule, GitGraphGeneratedModule } from '../generated/module.js';
+import { GitGraphTokenBuilder } from './tokenBuilder.js';
+
+interface GitGraphAddedServices {
+  parser: {
+    TokenBuilder: GitGraphTokenBuilder;
+    ValueConverter: CommonValueConverter;
+  };
+}
+
+export type GitGraphServices = LangiumCoreServices & GitGraphAddedServices;
+
+export const GitGraphModule: Module<
+  GitGraphServices,
+  PartialLangiumCoreServices & GitGraphAddedServices
+> = {
+  parser: {
+    TokenBuilder: () => new GitGraphTokenBuilder(),
+    ValueConverter: () => new CommonValueConverter(),
+  },
+};
+
+export function createGitGraphServices(context: DefaultSharedCoreModuleContext = EmptyFileSystem): {
+  shared: LangiumSharedCoreServices;
+  GitGraph: GitGraphServices;
+} {
+  const shared: LangiumSharedCoreServices = inject(
+    createDefaultSharedCoreModule(context),
+    MermaidGeneratedSharedModule
+  );
+  const GitGraph: GitGraphServices = inject(
+    createDefaultCoreModule({ shared }),
+    GitGraphGeneratedModule,
+    GitGraphModule
+  );
+  shared.ServiceRegistry.register(GitGraph);
+  return { shared, GitGraph };
+}

packages/parser/src/language/gitGraph/tokenBuilder.ts

@@ -0,0 +1,7 @@
+import { AbstractMermaidTokenBuilder } from '../common/index.js';
+
+export class GitGraphTokenBuilder extends AbstractMermaidTokenBuilder {
+  public constructor() {
+    super(['gitGraph']);
+  }
+}

packages/parser/src/language/index.ts

@@ -5,20 +5,30 @@ export {
   PacketBlock,
   Pie,
   PieSection,
+  GitGraph,
+  Branch,
+  Commit,
+  Merge,
   isCommon,
   isInfo,
   isPacket,
   isPacketBlock,
   isPie,
   isPieSection,
+  isGitGraph,
+  isBranch,
+  isCommit,
+  isMerge,
 } from './generated/ast.js';
 export {
   InfoGeneratedModule,
   MermaidGeneratedSharedModule,
   PacketGeneratedModule,
   PieGeneratedModule,
+  GitGraphGeneratedModule,
 } from './generated/module.js';
 
+export * from './gitGraph/index.js';
 export * from './common/index.js';
 export * from './info/index.js';
 export * from './packet/index.js';