fix: generalize frontmatter parsing and coercing

Jacky Zhao

2024-01-28 42ee069c1cc515e6c5e595143e46c8201c6cbe3f

 quartz/plugins/transformers/lastmod.ts

@@ -12,21 +12,6 @@
  priority: ["frontmatter", "git", "filesystem"],
}

function coerceDate(fp: string, d: any): Date {
  const dt = new Date(d)
  const invalidDate = isNaN(dt.getTime()) || dt.getTime() === 0
  if (invalidDate && d !== undefined) {
    console.log(
      chalk.yellow(
        `\nWarning: found invalid date "${d}" in \`${fp}\`. Supported formats: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date#date_time_string_format`,
      ),
    )
  }

  return invalidDate ? new Date() : dt
}

type MaybeDate = undefined | string | number
export const CreatedModifiedDate: QuartzTransformerPlugin<Partial<Options> | undefined> = (
  userOpts,
) => {
@@ -38,23 +23,21 @@
        () => {
          let repo: Repository | undefined = undefined
          return async (_tree, file) => {
            let created: MaybeDate = undefined
            let modified: MaybeDate = undefined
            let published: MaybeDate = undefined
            let created: Date | undefined = undefined
            let modified: Date | undefined = undefined
            let published: Date | undefined = undefined

            const fp = file.data.filePath!
            const fullFp = path.posix.join(file.cwd, fp)
            for (const source of opts.priority) {
              if (source === "filesystem") {
                const st = await fs.promises.stat(fullFp)
                created ||= st.birthtimeMs
                modified ||= st.mtimeMs
                created ||= new Date(st.birthtimeMs)
                modified ||= new Date(st.mtimeMs)
              } else if (source === "frontmatter" && file.data.frontmatter) {
                created ||= file.data.frontmatter.date
                modified ||= file.data.frontmatter.lastmod
                modified ||= file.data.frontmatter.updated
                modified ||= file.data.frontmatter["last-modified"]
                published ||= file.data.frontmatter.publishDate
                created ||= file.data.frontmatter.created
                modified ||= file.data.frontmatter.modified
                published ||= file.data.frontmatter.published
              } else if (source === "git") {
                if (!repo) {
                  // Get a reference to the main git repo.
@@ -64,7 +47,9 @@
                }

                try {
                  modified ||= await repo.getFileLatestModifiedDateAsync(file.data.filePath!)
                  modified ||= new Date(
                    await repo.getFileLatestModifiedDateAsync(file.data.filePath!),
                  )
                } catch {
                  console.log(
                    chalk.yellow(
@@ -76,10 +61,13 @@
              }
            }

            created ||= new Date()
            modified ||= new Date()
            published ||= new Date()
            file.data.dates = {
              created: coerceDate(fp, created),
              modified: coerceDate(fp, modified),
              published: coerceDate(fp, published),
              created,
              modified,
              published,
            }
          }
        },