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index.js
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index.js
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"use strict";
require("core-js/modules/es.array.iterator");
require("core-js/modules/es.promise");
require("core-js/modules/es.string.replace");
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = _default;
var _path = require("path");
var _lodash = require("lodash");
var _minimatch = _interopRequireDefault(require("minimatch"));
var _debug = _interopRequireDefault(require("debug"));
var _sharp = _interopRequireDefault(require("sharp"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }
function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }
function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
const debug = (0, _debug.default)('metalsmith-sharp');
function replacePlaceholders(text, placeholders) {
return text.replace(/\{([^}]+)\}/g, (match, pattern) => {
if (pattern in placeholders) {
return placeholders[pattern];
}
return match;
});
}
function getReplacements(path) {
const parsedPath = (0, _path.parse)(path);
if (parsedPath.dir.length) {
parsedPath.dir = `${parsedPath.dir}/`;
}
return parsedPath;
}
function runSharp(image, options) {
const sharp = (0, _sharp.default)(image.contents);
return sharp.metadata().then(metadata => {
options.methods.forEach(method => {
let args;
if (typeof method.args === 'function') {
args = method.args(metadata);
} else {
args = [].concat(method.args);
}
sharp[method.name](...args);
});
return sharp.toBuffer();
});
}
function _default(userOptions) {
const defaultOptions = {
src: '**/*.jpg',
namingPattern: '{dir}{base}',
methods: [],
moveFile: false
};
const optionsList = [].concat(userOptions); // Return metalsmith plugin.
return function (files, metalsmith, done) {
Object.keys(files).reduce((fileSequence, filename) => {
return fileSequence.then(() => {
const file = files[filename];
const replacements = getReplacements(filename); // Iterate over all option sets.
return optionsList.reduce((stepSequence, options) => {
const stepOptions = _objectSpread({}, defaultOptions, {}, options);
if (!(0, _minimatch.default)(filename, stepOptions.src)) {
return stepSequence;
}
debug(`processing ${filename}`);
const image = (0, _lodash.cloneDeep)(file); // Run sharp and save new file.
return stepSequence.then(() => runSharp(image, stepOptions)).catch(err => {
err.message = `Could not process file "${filename}":\n${err.message}`;
return Promise.reject(err);
}).then((buffer, info) => {
const dist = replacePlaceholders(stepOptions.namingPattern, replacements);
image.contents = buffer;
files[dist] = image;
if (filename !== dist && stepOptions.moveFile) {
delete files[filename];
}
});
}, Promise.resolve());
});
}, Promise.resolve()).then(() => {
done();
}).catch(err => {
done(err);
});
};
}
module.exports = exports.default;