generate copy without wikilinks

packages/foam-vscode/package.json

@@ -346,6 +346,14 @@
         "command": "foam-vscode.open-resource",
         "title": "Foam: Open Resource"
       },
+      {
+        "command": "foam-vscode.convert-link-style-inplace",
+        "title": "Foam: convert link style in place"
+      },
+      {
+        "command": "foam-vscode.convert-link-style-incopy",
+        "title": "Foam: convert link format in copy"
+      },
       {
         "command": "foam-vscode.views.orphans.group-by:folder",
         "title": "Group By Folder",

packages/foam-vscode/src/core/janitor/convert-links-format.test.ts

@@ -0,0 +1,71 @@
+import { convertLinkFormat } from '.';
+import { TEST_DATA_DIR } from '../../test/test-utils';
+import { MarkdownResourceProvider } from '../services/markdown-provider';
+import { Resource } from '../model/note';
+import { FoamWorkspace } from '../model/workspace';
+import { Logger } from '../utils/log';
+import fs from 'fs';
+import { URI } from '../model/uri';
+import { createMarkdownParser } from '../services/markdown-parser';
+import { FileDataStore } from '../../test/test-datastore';
+
+Logger.setLevel('error');
+
+describe('generateStdMdLink', () => {
+  let _workspace: FoamWorkspace;
+  // TODO slug must be reserved for actual slugs, not file names
+  const findBySlug = (slug: string): Resource => {
+    return _workspace
+      .list()
+      .find(res => res.uri.getName() === slug) as Resource;
+  };
+
+  beforeAll(async () => {
+    /** Use fs for reading files in units where vscode.workspace is unavailable */
+    const readFile = async (uri: URI) =>
+      (await fs.promises.readFile(uri.toFsPath())).toString();
+    const dataStore = new FileDataStore(
+      readFile,
+      TEST_DATA_DIR.joinPath('__scaffold__').toFsPath()
+    );
+    const parser = createMarkdownParser();
+    const mdProvider = new MarkdownResourceProvider(dataStore, parser);
+    _workspace = await FoamWorkspace.fromProviders([mdProvider], dataStore);
+  });
+
+  it('initialised test graph correctly', () => {
+    expect(_workspace.list().length).toEqual(11);
+  });
+
+  it('can generate markdown links correctly', async () => {
+    const note = findBySlug('file-with-different-link-formats');
+    const actual = note.links
+      .filter(link => link.type === 'wikilink')
+      .map(link => convertLinkFormat(link, 'link', _workspace, note));
+    const expected: string[] = [
+      '[first-document](first-document.md)',
+      '[second-document](second-document.md)',
+      '[[non-exist-file]]',
+      '[#one section](<file-with-different-link-formats.md#one section>)',
+      '[another name](<file-with-different-link-formats.md#one section>)',
+      '[an alias](first-document.md)',
+      '[first-document](first-document.md)',
+    ];
+    expect(actual.length).toEqual(expected.length);
+    const _ = actual.map((LinkReplace, index) => {
+      expect(LinkReplace.newText).toEqual(expected[index]);
+    });
+  });
+
+  it('can generate wikilinks correctly', async () => {
+    const note = findBySlug('file-with-different-link-formats');
+    const actual = note.links
+      .filter(link => link.type === 'link')
+      .map(link => convertLinkFormat(link, 'wikilink', _workspace, note));
+    const expected: string[] = ['[[first-document|file]]'];
+    expect(actual.length).toEqual(expected.length);
+    const _ = actual.map((LinkReplace, index) => {
+      expect(LinkReplace.newText).toEqual(expected[index]);
+    });
+  });
+});

packages/foam-vscode/src/core/janitor/convert-links-format.ts

@@ -0,0 +1,83 @@
+import { Resource, ResourceLink } from '../model/note';
+import { URI } from '../model/uri';
+import { Range } from '../model/range';
+import { FoamWorkspace } from '../model/workspace';
+import { isNone } from '../utils';
+import { MarkdownLink } from '../services/markdown-link';
+
+export interface LinkReplace {
+  newText: string;
+  range: Range /* old range */;
+}
+
+/**
+ * convert a link based on its workspace and the note containing it.
+ * According to targetFormat parameter to decide output format. If link.type === targetFormat, then it simply copy
+ * the rawText into LinkReplace. Therefore, it's recommended to filter before conversion.
+ * If targetFormat isn't supported, or the target resource pointed by link cannot be found, the function will throw
+ * exception.
+ * @param link
+ * @param targetFormat 'wikilink' | 'link'
+ * @param workspace
+ * @param note
+ * @returns LinkReplace { newText: string; range: Range; }
+ */
+export function convertLinkFormat(
+  link: ResourceLink,
+  targetFormat: 'wikilink' | 'link',
+  workspace: FoamWorkspace,
+  note: Resource | URI
+): LinkReplace {
+  const resource = note instanceof URI ? workspace.find(note) : note;
+  const targetUri = workspace.resolveLink(resource, link);
+  /* If it's already the target format or a placeholder, no transformation happens */
+  if (link.type === targetFormat || targetUri.scheme === 'placeholder') {
+    return {
+      newText: link.rawText,
+      range: link.range,
+    };
+  }
+
+  let { target, section, alias } = MarkdownLink.analyzeLink(link);
+  let sectionDivider = section ? '#' : '';
+
+  if (isNone(targetUri)) {
+    throw new Error(
+      `Unexpected state: link to: "${link.rawText}" is not resolvable`
+    );
+  }
+
+  const targetRes = workspace.find(targetUri);
+  let relativeUri = targetRes.uri.relativeTo(resource.uri.getDirectory());
+
+  if (targetFormat === 'wikilink') {
+    return MarkdownLink.createUpdateLinkEdit(link, {
+      target: workspace.getIdentifier(relativeUri),
+      type: 'wikilink',
+    });
+  }
+
+  if (targetFormat === 'link') {
+    /* if alias is empty, construct one as target#section */
+    if (alias === '') {
+      /* in page anchor have no filename */
+      if (relativeUri.getBasename() === resource.uri.getBasename()) {
+        target = '';
+      }
+      alias = `${target}${sectionDivider}${section}`;
+    }
+
+    /* if it's originally an embedded note, the markdown link shouldn't be embedded */
+    const isEmbed = targetRes.type === 'image' ? link.isEmbed : false;
+
+    return MarkdownLink.createUpdateLinkEdit(link, {
+      alias: alias,
+      target: relativeUri.path,
+      isEmbed: isEmbed,
+      type: 'link',
+    });
+  }
+  throw new Error(
+    `Unexpected state: targetFormat: ${targetFormat} is not supported`
+  );
+}

packages/foam-vscode/src/core/janitor/generate-link-references.test.ts

@@ -36,7 +36,7 @@ describe('generateLinkReferences', () => {
   });
 
   it('initialised test graph correctly', () => {
-    expect(_workspace.list().length).toEqual(10);
+    expect(_workspace.list().length).toEqual(11);
   });
 
   it('should add link references to a file that does not have them', async () => {

packages/foam-vscode/src/core/janitor/index.ts

@@ -1,2 +1,3 @@
 export { generateLinkReferences } from './generate-link-references';
 export { generateHeading } from './generate-headings';
+export { convertLinkFormat } from './convert-links-format';

packages/foam-vscode/src/core/services/markdown-link.test.ts

@@ -254,4 +254,185 @@ describe('MarkdownLink', () => {
       expect(edit.range).toEqual(link.range);
     });
   });
+
+  describe('convert wikilink to link', () => {
+    it('should generate default alias if no one', () => {
+      const wikilink = parser.parse(getRandomURI(), `[[wikilink]]`).links[0];
+      const wikilinkEdit = MarkdownLink.createUpdateLinkEdit(wikilink, {
+        type: 'link',
+      });
+      expect(wikilinkEdit.newText).toEqual(`[wikilink](wikilink)`);
+      expect(wikilinkEdit.range).toEqual(wikilink.range);
+
+      const wikilinkWithSection = parser.parse(
+        getRandomURI(),
+        `[[wikilink#section]]`
+      ).links[0];
+      const wikilinkWithSectionEdit = MarkdownLink.createUpdateLinkEdit(
+        wikilinkWithSection,
+        {
+          type: 'link',
+        }
+      );
+      expect(wikilinkWithSectionEdit.newText).toEqual(
+        `[wikilink#section](wikilink#section)`
+      );
+      expect(wikilinkWithSectionEdit.range).toEqual(wikilinkWithSection.range);
+    });
+
+    it('should use alias in the wikilik the if there has one', () => {
+      const wikilink = parser.parse(
+        getRandomURI(),
+        `[[wikilink#section|alias]]`
+      ).links[0];
+      const wikilinkEdit = MarkdownLink.createUpdateLinkEdit(wikilink, {
+        type: 'link',
+      });
+      expect(wikilinkEdit.newText).toEqual(`[alias](wikilink#section)`);
+      expect(wikilinkEdit.range).toEqual(wikilink.range);
+    });
+  });
+
+  describe('convert link to wikilink', () => {
+    it('should reorganize target, section, and alias in wikilink manner', () => {
+      const link = parser.parse(getRandomURI(), `[link](to/path.md)`).links[0];
+      const linkEdit = MarkdownLink.createUpdateLinkEdit(link, {
+        type: 'wikilink',
+      });
+      expect(linkEdit.newText).toEqual(`[[to/path.md|link]]`);
+      expect(linkEdit.range).toEqual(link.range);
+
+      const linkWithSection = parser.parse(
+        getRandomURI(),
+        `[link](to/path.md#section)`
+      ).links[0];
+      const linkWithSectionEdit = MarkdownLink.createUpdateLinkEdit(
+        linkWithSection,
+        {
+          type: 'wikilink',
+        }
+      );
+      expect(linkWithSectionEdit.newText).toEqual(
+        `[[to/path.md#section|link]]`
+      );
+      expect(linkWithSectionEdit.range).toEqual(linkWithSection.range);
+    });
+
+    it('should use alias in the wikilik the if there has one', () => {
+      const wikilink = parser.parse(
+        getRandomURI(),
+        `[[wikilink#section|alias]]`
+      ).links[0];
+      const wikilinkEdit = MarkdownLink.createUpdateLinkEdit(wikilink, {
+        type: 'link',
+      });
+      expect(wikilinkEdit.newText).toEqual(`[alias](wikilink#section)`);
+      expect(wikilinkEdit.range).toEqual(wikilink.range);
+    });
+  });
+
+  describe('convert to its original type', () => {
+    it('should remain unchanged', () => {
+      const link = parser.parse(getRandomURI(), `[link](to/path.md#section)`)
+        .links[0];
+      const linkEdit = MarkdownLink.createUpdateLinkEdit(link, {
+        type: 'link',
+      });
+      expect(linkEdit.newText).toEqual(`[link](to/path.md#section)`);
+      expect(linkEdit.range).toEqual(link.range);
+
+      const wikilink = parser.parse(
+        getRandomURI(),
+        `[[wikilink#section|alias]]`
+      ).links[0];
+      const wikilinkEdit = MarkdownLink.createUpdateLinkEdit(wikilink, {
+        type: 'wikilink',
+      });
+      expect(wikilinkEdit.newText).toEqual(`[[wikilink#section|alias]]`);
+      expect(wikilinkEdit.range).toEqual(wikilink.range);
+    });
+  });
+
+  describe('change isEmbed property', () => {
+    it('should change isEmbed only', () => {
+      const wikilink = parser.parse(getRandomURI(), `[[wikilink]]`).links[0];
+      const wikilinkEdit = MarkdownLink.createUpdateLinkEdit(wikilink, {
+        isEmbed: true,
+      });
+      expect(wikilinkEdit.newText).toEqual(`![[wikilink]]`);
+      expect(wikilinkEdit.range).toEqual(wikilink.range);
+
+      const link = parser.parse(getRandomURI(), `![link](to/path.md)`).links[0];
+      const linkEdit = MarkdownLink.createUpdateLinkEdit(link, {
+        isEmbed: false,
+      });
+      expect(linkEdit.newText).toEqual(`[link](to/path.md)`);
+      expect(linkEdit.range).toEqual(link.range);
+    });
+
+    it('should be unchanged if the update value is the same as the original one', () => {
+      const embeddedWikilink = parser.parse(getRandomURI(), `![[wikilink]]`)
+        .links[0];
+      const embeddedWikilinkEdit = MarkdownLink.createUpdateLinkEdit(
+        embeddedWikilink,
+        {
+          isEmbed: true,
+        }
+      );
+      expect(embeddedWikilinkEdit.newText).toEqual(`![[wikilink]]`);
+      expect(embeddedWikilinkEdit.range).toEqual(embeddedWikilink.range);
+
+      const link = parser.parse(getRandomURI(), `[link](to/path.md)`).links[0];
+      const linkEdit = MarkdownLink.createUpdateLinkEdit(link, {
+        isEmbed: false,
+      });
+      expect(linkEdit.newText).toEqual(`[link](to/path.md)`);
+      expect(linkEdit.range).toEqual(link.range);
+    });
+  });
+
+  describe('insert angles', () => {
+    it('should insert angles when meeting space in links', () => {
+      const link = parser.parse(getRandomURI(), `![link](to/path.md)`).links[0];
+      const linkAddSection = MarkdownLink.createUpdateLinkEdit(link, {
+        section: 'one section',
+      });
+      expect(linkAddSection.newText).toEqual(
+        `![link](<to/path.md#one section>)`
+      );
+      expect(linkAddSection.range).toEqual(link.range);
+
+      const linkChangingTarget = parser.parse(
+        getRandomURI(),
+        `[link](to/path.md#one-section)`
+      ).links[0];
+      const linkEdit = MarkdownLink.createUpdateLinkEdit(linkChangingTarget, {
+        target: 'to/another path.md',
+      });
+      expect(linkEdit.newText).toEqual(
+        `[link](<to/another path.md#one-section>)`
+      );
+      expect(linkEdit.range).toEqual(linkChangingTarget.range);
+
+      const wikilink = parser.parse(getRandomURI(), `[[wikilink#one section]]`)
+        .links[0];
+      const wikilinkEdit = MarkdownLink.createUpdateLinkEdit(wikilink, {
+        type: 'link',
+      });
+      expect(wikilinkEdit.newText).toEqual(
+        `[wikilink#one section](<wikilink#one section>)`
+      );
+      expect(wikilinkEdit.range).toEqual(wikilink.range);
+    });
+
+    it('should not insert angles in wikilink', () => {
+      const wikilink = parser.parse(getRandomURI(), `[[wikilink#one section]]`)
+        .links[0];
+      const wikilinkEdit = MarkdownLink.createUpdateLinkEdit(wikilink, {
+        target: 'another wikilink',
+      });
+      expect(wikilinkEdit.newText).toEqual(`[[another wikilink#one section]]`);
+      expect(wikilinkEdit.range).toEqual(wikilink.range);
+    });
+  });
 });