| 51 | } |
| 52 | |
| 53 | function parseChangeset(content: string): ParsedChangeset | null { |
| 54 | // Changeset files start and end frontmatter with "---" |
| 55 | if (!content.startsWith("---")) { |
| 56 | return null; |
| 57 | } |
| 58 | |
| 59 | let closingIndex = content.indexOf("\n---", 3); |
| 60 | if (closingIndex === -1) { |
| 61 | return null; |
| 62 | } |
| 63 | |
| 64 | let frontmatter = content.slice(3, closingIndex).trim(); |
| 65 | let description = content.slice(closingIndex + 4).trim(); |
| 66 | |
| 67 | let packages = new Map<string, string>(); |
| 68 | |
| 69 | for (let line of frontmatter.split("\n")) { |
| 70 | line = line.trim(); |
| 71 | if (!line) continue; |
| 72 | |
| 73 | // Lines look like: "package-name": bump |
| 74 | // The package name may be quoted with double quotes. |
| 75 | let match = line.match(/^"([^"]+)":\s*(\S+)$/); |
| 76 | if (!match) { |
| 77 | console.warn(` ⚠️ Could not parse frontmatter line: ${line}`); |
| 78 | continue; |
| 79 | } |
| 80 | |
| 81 | let [, packageName, bump] = match; |
| 82 | packages.set(packageName, bump); |
| 83 | } |
| 84 | |
| 85 | return { packages, description }; |
| 86 | } |
| 87 | |
| 88 | /** |
| 89 | * Returns a markdown link to the PR or commit that introduced the given file. |