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entrypoint.js
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entrypoint.js
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#!/usr/bin/env node
const path = require("path");
const fs = require("fs").promises;
const core = require("@actions/core");
const { getInput } = core;
const { exec } = require("@actions/exec");
const { cosmiconfig } = require("cosmiconfig");
async function main() {
const inputs = parseInputs();
core.debug(`parsed inputs: ${JSON.stringify(inputs)}`);
const { config, filepath } = await loadConf(inputs.configFile);
const safeConfig = sanitizeConfig(config);
core.debug(`loaded config: ${JSON.stringify(safeConfig)}`);
if (
String(safeConfig.lang || "en-US")
.split("-")[0]
.toLocaleLowerCase() === "ja"
)
japaneseFontFix();
if (inputs.generateHtml) await marpCli(filepath, safeConfig);
if (inputs.generatePdf) await marpCli(filepath, { ...safeConfig, pdf: true });
if (inputs.generatePptx)
await marpCli(filepath, { ...safeConfig, pptx: true });
if (inputs.generateImage)
await marpCli(filepath, { ...safeConfig, image: inputs.generateImage });
if (inputs.generateImages)
await marpCli(filepath, { ...safeConfig, images: inputs.generateImages });
}
main();
function parseInputs() {
const toBool = (x) => x.toUpperCase() === "TRUE";
return {
configFile: getInput("config-file") || undefined,
generateHtml: toBool(getInput("generate-html") || "true"),
generatePdf: toBool(getInput("generate-pdf") || "true"),
generatePptx: toBool(getInput("generate-pptx") || "false"),
generateImage: getInput("generate-image") || undefined,
generateImages: getInput("generate-images") || undefined,
};
}
/**
* @param {string|undefined} confPath
* @returns {Promise<{ config: unknown, filepath: string } | undefined>}
*/
async function loadConf(confPath) {
const explorer = cosmiconfig("marp");
try {
const ret = await (confPath === undefined
? explorer.search()
: explorer.load(confPath));
if (ret) return ret;
} catch (e) {
console.error(
[
"Could not find or parse configuration file.",
e.name !== "Error" && `(${e.name})`,
confPath !== undefined && `[${confPath}]`,
]
.filter((m) => m)
.join(" ")
);
}
return { config: {}, filepath: "marp.config.json" };
}
function sanitizeConfig(config) {
const hasInputDir = Boolean(config.inputDir);
const hasOutput = Boolean(config.output);
const picked = pick(config, [
"allowLocalFiles",
"bespoke",
"description",
"engine",
"html",
"jpegQuality",
"lang",
"ogImage",
"options",
"template",
"theme",
"themeSet",
"title",
"url",
]);
return {
...picked,
inputDir: hasInputDir ? config.inputDir : ".",
output: hasInputDir || hasOutput ? config.output : ".",
};
}
function pick(object, keys) {
return keys.reduce((obj, key) => {
if (object && object.hasOwnProperty(key)) {
obj[key] = object[key];
}
return obj;
}, {});
}
async function japaneseFontFix() {
await fs.copyFile(
"/home/marp/.cli-action/fontconfig.xml",
"/etc/fonts/local.conf"
);
core.debug("For Japanese user, font priority has been changed");
}
async function marpCli(userConfigFilePath, config) {
core.startGroup("Marp CLI execution");
core.debug(`config: ${JSON.stringify(config)}`);
const configPath = path.join(
path.dirname(userConfigFilePath),
`temp-config-${Math.random().toString(36).slice(-8)}.json`
);
await fs.writeFile(configPath, JSON.stringify(config));
await exec("node", [
"/home/marp/.cli/marp-cli.js",
"--config-file",
configPath,
"-I",
path.join(path.dirname(userConfigFilePath), config.inputDir),
"--html",
]);
await fs.unlink(configPath);
core.endGroup();
}