@pnpm/resolving.jsr-specifier-parser/lib/index.js

Parser of jsr specifiers

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.parseJsrSpecifier = parseJsrSpecifier;
const error_1 = require("@pnpm/error");
function parseJsrSpecifier(rawSpecifier, alias) {
    if (!rawSpecifier.startsWith('jsr:'))
        return null;
    rawSpecifier = rawSpecifier.substring('jsr:'.length);
    // syntax: jsr:@<scope>/<name>[@<version_selector>]
    if (rawSpecifier.startsWith('@')) {
        const index = rawSpecifier.lastIndexOf('@');
        // syntax: jsr:@<scope>/<name>
        if (index === 0) {
            return {
                jsrPkgName: rawSpecifier,
                npmPkgName: jsrToNpmPackageName(rawSpecifier),
            };
        }
        // syntax: jsr:@<scope>/<name>@<version_selector>
        const jsrPkgName = rawSpecifier.substring(0, index);
        return {
            jsrPkgName,
            npmPkgName: jsrToNpmPackageName(jsrPkgName),
            versionSelector: rawSpecifier.substring(index + '@'.length),
        };
    }
    // syntax: jsr:<name>@<version_selector> (invalid)
    if (rawSpecifier.includes('@')) {
        throw new error_1.PnpmError('MISSING_JSR_PACKAGE_SCOPE', 'Package names from JSR must have a scope');
    }
    if (!alias) {
        throw new error_1.PnpmError('INVALID_JSR_SPECIFIER', `JSR specifier '${rawSpecifier}' is missing a package name`);
    }
    // syntax: jsr:<spec>
    return {
        versionSelector: rawSpecifier,
        jsrPkgName: alias,
        npmPkgName: jsrToNpmPackageName(alias),
    };
}
function jsrToNpmPackageName(jsrPkgName) {
    if (!jsrPkgName.startsWith('@')) {
        throw new error_1.PnpmError('MISSING_JSR_PACKAGE_SCOPE', 'Package names from JSR must have a scope');
    }
    const sepIndex = jsrPkgName.indexOf('/');
    if (sepIndex === -1) {
        throw new error_1.PnpmError('INVALID_JSR_PACKAGE_NAME', `The package name '${jsrPkgName}' is invalid`);
    }
    const scope = jsrPkgName.substring(0, sepIndex);
    const name = jsrPkgName.substring(sepIndex + '/'.length);
    return `@jsr/${scope.substring(1)}__${name}`;
}
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