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iconify/components/ember/cleanup.js

164 lines
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JavaScript
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const fs = require('fs');
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/**
* Fix default export syntax
*/
function fixDefaultExport(filename) {
const source = __dirname + '/' + filename;
const data = fs.readFileSync(source, 'utf8');
const search = 'IconifyIconComponent as default';
if (data.indexOf(search) === -1) {
console.log(`Exports are fine in ${filename}`);
return;
}
let foundMatch = 0;
const lines = data.split(',').filter((line) => {
if (line.trim() === search) {
foundMatch++;
return false;
}
return true;
});
if (foundMatch !== 1) {
throw new Error(`Error fixing exports in ${filename}`);
}
const newCode =
lines.join(',') + '\nexport default IconifyIconComponent;\n';
fs.writeFileSync(source, newCode, 'utf8');
console.log(`Fixed default export in ${filename}`);
}
/**
* Restore decorator in component
*/
function restoreDecorator(filename) {
const source = __dirname + '/' + filename;
let data = fs.readFileSync(source, 'utf8');
// Code to find/replace
const decorateStart = 'var __decorate =';
const decorateEnd = '};';
const decorate2Start =
'function __decorate(decorators, target, key, desc) {';
const decorate2End = '}';
const componentHeader =
'export class IconifyIconComponent extends Component {';
const componentHeader2 = 'class IconifyIconComponent extends Component {';
const addedLine = '@tracked _counter = 0;';
const footerStart = `__decorate([`;
const footerEnd = '], IconifyIconComponent.prototype, "_counter", void 0);';
// Check if already parsed
if (
data.indexOf(addedLine) !== -1 &&
data.indexOf(decorateStart) === -1 &&
data.indexOf(decorate2Start) === -1 &&
data.indexOf(footerStart) === -1
) {
console.log(`${filename} is already cleaned up`);
return;
}
// Split lines
let lines = data.split('\n');
/**
*
* @param {string} firstMatch First match, line must start with it
* @param {string} lastMatch Last match, exact line
* @param {number} middleCount Number of lines between start and end, all will be removed
* @param {string} key Text for error message
*/
const removeLines = (firstMatch, lastMatch, middleCount, key) => {
let found = false;
let removed = 0;
let replaced = false;
lines = lines.filter((line) => {
if (replaced) {
return true;
}
// Check for start
if (!found) {
const trimmed = line.trim();
if (trimmed.slice(0, firstMatch.length) === firstMatch) {
found = true;
return false;
}
return true;
}
// Remove line?
if (removed < middleCount) {
removed++;
return false;
}
// Last line
if (line.trim() !== lastMatch) {
throw new Error(
`Mismatch for last line for ${key} in ${filename}: "${line}"`
);
}
replaced = true;
return false;
});
if (!found) {
throw new Error(
`Could not do replacement for ${key} in ${filename}`
);
}
};
// Remove __decorate() polyfill
if (data.indexOf(decorate2Start) !== -1) {
removeLines(decorate2Start, decorate2End, 4, 'decorator polyfill 2');
} else {
removeLines(decorateStart, decorateEnd, 4, 'decorator polyfill');
}
// Remove __decorate()
removeLines(footerStart, footerEnd, 1, 'decorate()');
// Add decorator after class declaration
let added = false;
lines = lines.map((line) => {
if (added) {
return line;
}
const trimmed = line.trim();
if (trimmed === componentHeader || trimmed === componentHeader2) {
added = true;
return line + '\n ' + addedLine;
}
return line;
});
if (!added) {
throw new Error(`Could not find class declaration in ${filename}`);
}
// Save file
fs.writeFileSync(source, lines.join('\n'), 'utf8');
console.log(`Cleaned up ${filename}`);
}
function copyFile(source, target) {
fs.writeFileSync(
__dirname + '/' + target,
fs.readFileSync(__dirname + '/' + source)
);
console.log(`Created ${target}`);
}
restoreDecorator('lib/component.js');
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fixDefaultExport('addon/components/iconify-icon.js');
restoreDecorator('addon/components/iconify-icon.js');
copyFile('src/iconify-icon.hbs', 'addon/components/iconify-icon.hbs');