From 90c4a1a09c7832eabdbab5581a64065423e4b69a Mon Sep 17 00:00:00 2001
From: Ola Rubaj <52197250+olayway@users.noreply.github.com>
Date: Thu, 10 Aug 2023 21:09:52 +0200
Subject: [PATCH] [#31,utils/parseFile][s]: obsidian-style tags list support

---
 .changeset/flat-bikes-pull.md | 5 +++++
 src/utils/parseFile.spec.ts   | 9 ++++++---
 src/utils/parseFile.ts        | 5 +++++
 3 files changed, 16 insertions(+), 3 deletions(-)
 create mode 100644 .changeset/flat-bikes-pull.md

diff --git a/.changeset/flat-bikes-pull.md b/.changeset/flat-bikes-pull.md
new file mode 100644
index 0000000..5f2e315
--- /dev/null
+++ b/.changeset/flat-bikes-pull.md
@@ -0,0 +1,5 @@
+---
+"mddb": patch
+---
+
+Add support for Obsidian style tags list in frontmatter (e.g. `tags: a,b,c`).
diff --git a/src/utils/parseFile.spec.ts b/src/utils/parseFile.spec.ts
index 5541afc..28de0e3 100644
--- a/src/utils/parseFile.spec.ts
+++ b/src/utils/parseFile.spec.ts
@@ -2,7 +2,8 @@ import { parseFile } from "./parseFile";
 
 const source = `---
 title: Hello World
-tags: [hello, world]
+authors: [John Doe, Jane Doe]
+tags: a, b, c
 ---
 # Hello World
 [[Some Link]]
@@ -15,7 +16,8 @@ describe("parseFile", () => {
   it("should parse a file returning metadata and wiki links", () => {
     const expectedMetadata = {
       title: "Hello World",
-      tags: ["hello", "world"],
+      authors: ["John Doe", "Jane Doe"],
+      tags: ["a", "b", "c"],
     };
     const expectedLinks = [
       { linkType: "normal", linkSrc: "Some Link" },
@@ -31,7 +33,8 @@ describe("parseFile", () => {
   it("should parse a file returning metadata and wiki links with Obsidian-style shortest paths", () => {
     const expectedMetadata = {
       title: "Hello World",
-      tags: ["hello", "world"],
+      authors: ["John Doe", "Jane Doe"],
+      tags: ["a", "b", "c"],
     };
     const expectedLinks = [
       { linkType: "normal", linkSrc: "/some/folder/Some Link" },
diff --git a/src/utils/parseFile.ts b/src/utils/parseFile.ts
index bb47396..6a2d21a 100644
--- a/src/utils/parseFile.ts
+++ b/src/utils/parseFile.ts
@@ -5,6 +5,11 @@ export function parseFile(source: string, options?: { permalinks?: string[] }) {
   // Metadata
   const { data: metadata } = matter(source);
 
+  // Obsidian style tags i.e. tags: tag1, tag2, tag3
+  if (metadata.tags && typeof metadata.tags === "string") {
+    metadata.tags = metadata.tags.split(",").map((tag: string) => tag.trim());
+  }
+
   // Links
   const links = extractWikiLinks(source, { permalinks: options?.permalinks });