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import type {AstroIntegration, ContentEntryType, HookParameters} from "astro"
import {fileURLToPath} from "url"
import {parse as parseYaml} from "yaml"
export interface GemtextConfig {}
type SetupHookParams = HookParameters<"astro:config:setup"> & {
// `addPageExtension` and `contentEntryType` are not a public APIs
// Add type defs here
addPageExtension: (extension: string) => void
addContentEntryType: (contentEntryType: ContentEntryType) => void
}
export default function gemtext(config: GemtextConfig = {}): AstroIntegration {
return {
name: "astro-gemtext",
hooks: {
"astro:config:setup": async (_params) => {
const params = _params as SetupHookParams
params.addPageExtension(".gmi")
params.addContentEntryType({
extensions: [".gmi"],
getRenderFunction: async (config) => {
return async (entry) => ({
html: entry.body ?? "",
frontmatter: entry.data,
})
},
getEntryInfo: async ({fileUrl, contents}) => {
const lines = contents.split("\n")
let data: Record<string, unknown> = {}
let frontmatter = ""
let bodyStartLineIndex = 0
if (lines.at(0) === "---" && lines.lastIndexOf("---") > 0) {
bodyStartLineIndex = lines.indexOf("---", 1) + 1
frontmatter = lines
.slice(1, bodyStartLineIndex - 1)
.join("\n")
try {
data = {
...data,
...parseYaml(frontmatter, {schema: "yaml-1.1"}),
}
} catch (e) {
console.debug(
"Failed to parse YAML frontmatter in gemtext:",
e,
)
}
}
const body = lines.slice(bodyStartLineIndex).join("\n")
const slug =
typeof data["slug"] === "string" ?
data["slug"]
: fileURLToPath(fileUrl).slice(
fileURLToPath(fileUrl).lastIndexOf("/") + 1,
)
return {
data,
rawData: frontmatter,
body,
slug,
}
},
})
},
},
}
}
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