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 outName = argv.output ?  argv.output : fileName + ".json";
 71const cSourceName = typeof(argv.csource) === "string" ?  argv.csource : fileName + ".cpp";
 72const r1csName = typeof(argv.r1cs) === "string" ?  argv.r1cs : fileName + ".r1cs";
 73const symName = typeof(argv.sym) === "string" ?  argv.sym : fileName + ".sym";
 74
 75const options = {};
 76options.reduceConstraints = !argv.fast;
 77options.verbose = argv.verbose || false;
 78if (argv.csource) {
 79    options.cSourceWriteStream = fs.createWriteStream(cSourceName);
 80}
 81if (argv.r1cs) {
 82    options.r1csWriteStream = fs.createWriteStream(r1csName);
 83}
 84if (argv.sym) {
 85    options.symWriteStream = fs.createWriteStream(symName);
 86}
 87
 88compiler(fullFileName, options).then( () => {
 89    let r1csDone = false;
 90    let cSourceDone = false;
 91    if (options.r1csWriteStream) {
 92        options.r1csWriteStream.end(() => {
 93            r1csDone = true;
 94            finishIfDone();
 95        });
 96    } else {
 97        r1csDone = true;
 98    }
 99    if (options.cSourceWriteStream) {
100        options.cSourceWriteStream.end(() => {
101            cSourceDone = true;
102            finishIfDone();
103        });
104    } else {
105        cSourceDone = true;
106    }
107    function finishIfDone() {
108        if ((r1csDone)&&(cSourceDone)) {
109            process.exit(0);
110        }
111    }
112}, (err) => {
113//    console.log(err);
114    console.log(err.stack);
115    if (err.pos) {
116        console.error(`ERROR at ${err.errFile}:${err.pos.first_line},${err.pos.first_column}-${err.pos.last_line},${err.pos.last_column}   ${err.errStr}`);
117    } else {
118        console.log(err.message);
119        if (argv.verbose) console.log(err.stack);
120    }
121    if (err.ast) {
122        console.error(JSON.stringify(err.ast, null, 1));
123    }
124    process.exit(1);
125});
126
127
128
129