piston/cli/commands/ppman_commands/spec.js

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2021-06-13 08:41:01 +02:00
const chalk = require('chalk');
const fs = require('fs/promises');
const minimatch = require("minimatch");
const semver = require('semver');
exports.command = ['spec <specfile>'];
exports.aliases = ['s'];
exports.describe = 'Install the packages described in the spec file, uninstalling packages which aren\'t in the list'
function does_match(package, rule){
const nameMatch = minimatch(package.language, rule.package_selector);
const versionMatch = semver.satisfies(package.language_version, rule.version_selector)
return nameMatch && versionMatch;
}
exports.handler = async ({axios, specfile}) => {
const spec_contents = await fs.readFile(specfile);
const spec_lines = spec_contents.toString().split("\n");
const rules = [];
for(const line of spec_lines){
const rule = {
_raw: line.trim(),
comment: false,
package_selector: null,
version_selector: null,
negate: false
};
if(line.starts_with("#")){
rule.comment = true;
}else {
let l = line.trim();
if(line.starts_with("!")){
rule.negate = true;
l = line.slice(1).trim();
}
const [pkg, ver] = l.split(" ", 2);
rule.package_selector = pkg;
rule.version_selector = ver;
}
if(rule._raw.length != 0) rules.push(rule);
}
const packages_req = await axios.get('/api/v2/packages');
const packages = packages_req.data;
const installed = packages.filter(pkg => pkg.installed);
const ensure_packages = [];
for(const rule of rules){
if(rule.comment) continue;
const matches = [];
if(!rule.negate){
for(const package of packages){
if(does_match(package, rule))
matches.push(package)
}
const latest_matches = matches.filter(
pkg => {
const versions = matches
.filter(x=>x.language == pkg.language)
.map(x=>x.language_version).sort(semver.rcompare);
return versions[0] == pkg.language_version
}
);
for(const match of latest_matches){
if(!ensure_packages.find(pkg => pkg.language == match.language && pkg.language_version == match.language_version))
ensure_packages.push(match)
}
}else{
for(const package of ensure_packages){
if(does_match(package, rule))
ensure_packages.splice(ensure_packages.indexOf(package))
}
}
}
const operations = [];
for(const package of ensure_packages){
if(!package.installed)
operations.push({
type: "install",
package: package.language,
version: package.language_version
});
}
for(const installed_package of installed){
if(!ensure_packages.find(
pkg => pkg.language == installed_package.language &&
pkg.language_version == installed_package.language_version
))
operations.push({
type: "uninstall",
package: installed_package.language,
version: installed_package.language_version
})
}
console.log(chalk.bold.yellow("Actions"))
for(const op of operations){
console.log((op.type == "install" ? chalk.green("Install") : chalk.red("Uninstall")) + ` ${op.package} ${op.version}`)
}
if(operations.length == 0){
console.log(chalk.gray("None"))
}
for(const op of operations){
if(op.type == "install"){
try{
const install = await axios.post(`/api/v2/packages`, {
language: op.package,
version: op.version
});
if(!install.data.language)
throw new Error(install.data.message); // Go to exception handler
console.log(chalk.bold.green("Installed"), op.package, op.version)
}catch(e){
console.log(chalk.bold.red("Failed to install") + ` ${op.package} ${op.version}:`, e.message)
}
}
else if(op.type == "uninstall"){
try{
const install = await axios.delete(`/api/v2/packages`, {
data: {
language: op.package,
version: op.version
}
});
if(!install.data.language)
throw new Error(install.data.message); // Go to exception handler
console.log(chalk.bold.green("Uninstalled"), op.package, op.version)
}catch(e){
console.log(chalk.bold.red("Failed to uninstall") + ` ${op.package} ${op.version}:`, e.message)
}
}
}
}