1#!/usr/bin/env node
  2
  3/*
  4    Copyright 2018 0KIMS association.
  5
  6    This file is part of circom (Zero Knowledge Circuit Compiler).
  7
  8    circom is a free software: you can redistribute it and/or modify it
  9    under the terms of the GNU General Public License as published by
 10    the Free Software Foundation, either version 3 of the License, or
 11    (at your option) any later version.
 12
 13    circom is distributed in the hope that it will be useful, but WITHOUT
 14    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 15    or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
 16    License for more details.
 17
 18    You should have received a copy of the GNU General Public License
 19    along with circom. If not, see <https://www.gnu.org/licenses/>.
 20*/
 21
 22/* eslint-disable no-console */
 23
 24const fs = require("fs");
 25const path = require("path");
 26
 27const compiler = require("./src/compiler");
 28
 29const version = require("./package").version;
 30
 31const argv = require("yargs")
 32    .version(version)
 33    .usage("circom [input source circuit file] -o [output definition circuit file] -c [output c file]")
 34    .alias("o", "output")
 35    .alias("c", "csource")
 36    .alias("s", "sym")
 37    .alias("r", "r1cs")
 38    .help("h")
 39    .alias("h", "help")
 40    .option("verbose", {
 41        alias: "v",
 42        type: "boolean",
 43        description: "Run with verbose logging"
 44    })
 45    .option("fast", {
 46        alias: "f",
 47        type: "boolean",
 48        description: "Do not optimize constraints"
 49    })
 50    .epilogue(`Copyright (C) 2018  0kims association
 51    This program comes with ABSOLUTELY NO WARRANTY;
 52    This is free software, and you are welcome to redistribute it
 53    under certain conditions; see the COPYING file in the official
 54    repo directory at  https://github.com/iden3/circom `)
 55    .argv;
 56
 57
 58let inputFile;
 59if (argv._.length == 0) {
 60    inputFile = "circuit.circom";
 61} else if (argv._.length == 1) {
 62    inputFile = argv._[0];
 63} else  {
 64    console.log("Only one circuit at a time is permited");
 65    process.exit(1);
 66}
 67
 68const fullFileName = path.resolve(process.cwd(), inputFile);
 69const fileName = path.basename(fullFileName, ".circom");
 70const cSourceName = typeof(argv.csource) === "string" ?  argv.csource : fileName + ".cpp";
 71const r1csName = typeof(argv.r1cs) === "string" ?  argv.r1cs : fileName + ".r1cs";
 72const symName = typeof(argv.sym) === "string" ?  argv.sym : fileName + ".sym";
 73
 74const options = {};
 75options.reduceConstraints = !argv.fast;
 76options.verbose = argv.verbose || false;
 77if (argv.csource) {
 78    options.cSourceWriteStream = fs.createWriteStream(cSourceName);
 79}
 80if (argv.r1cs) {
 81    options.r1csFileName = r1csName;
 82}
 83if (argv.sym) {
 84    options.symWriteStream = fs.createWriteStream(symName);
 85}
 86
 87compiler(fullFileName, options).then( () => {
 88    let cSourceDone = false;
 89    let symDone = false;
 90    if (options.cSourceWriteStream) {
 91        options.cSourceWriteStream.end(() => {
 92            cSourceDone = true;
 93            finishIfDone();
 94        });
 95    } else {
 96        cSourceDone = true;
 97    }
 98    if (options.symWriteStream) {
 99        options.symWriteStream.end(() => {
100            symDone = true;
101            finishIfDone();
102        });
103    } else {
104        symDone = true;
105    }
106    function finishIfDone() {
107        if ((cSourceDone)&&(symDone)) {
108            setTimeout(() => {
109                process.exit(0);
110            }, 300);
111        }
112    }
113}, (err) => {
114//    console.log(err);
115    console.log(err.stack);
116    if (err.pos) {
117        console.error(`ERROR at ${err.errFile}:${err.pos.first_line},${err.pos.first_column}-${err.pos.last_line},${err.pos.last_column}   ${err.errStr}`);
118    } else {
119        console.log(err.message);
120        if (argv.verbose) console.log(err.stack);
121    }
122    if (err.ast) {
123        console.error(JSON.stringify(err.ast, null, 1));
124    }
125    process.exit(1);
126});
127
128
129
130