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("w", "wasm")
 37    .alias("s", "sym")
 38    .alias("r", "r1cs")
 39    .alias("n", "newThreadTemplates")
 40    .help("h")
 41    .alias("h", "help")
 42    .option("verbose", {
 43        alias: "v",
 44        type: "boolean",
 45        description: "Run with verbose logging"
 46    })
 47    .option("fast", {
 48        alias: "f",
 49        type: "boolean",
 50        description: "Do not optimize constraints"
 51    })
 52    .epilogue(`Copyright (C) 2018  0kims association
 53    This program comes with ABSOLUTELY NO WARRANTY;
 54    This is free software, and you are welcome to redistribute it
 55    under certain conditions; see the COPYING file in the official
 56    repo directory at  https://github.com/iden3/circom `)
 57    .argv;
 58
 59
 60let inputFile;
 61if (argv._.length == 0) {
 62    inputFile = "circuit.circom";
 63} else if (argv._.length == 1) {
 64    inputFile = argv._[0];
 65} else  {
 66    console.log("Only one circuit at a time is permited");
 67    process.exit(1);
 68}
 69
 70const fullFileName = path.resolve(process.cwd(), inputFile);
 71const fileName = path.basename(fullFileName, ".circom");
 72const cSourceName = typeof(argv.csource) === "string" ?  argv.csource : fileName + ".cpp";
 73const wasmName = typeof(argv.wasm) === "string" ?  argv.wasm : fileName + ".wasm";
 74const r1csName = typeof(argv.r1cs) === "string" ?  argv.r1cs : fileName + ".r1cs";
 75const symName = typeof(argv.sym) === "string" ?  argv.sym : fileName + ".sym";
 76
 77const options = {};
 78options.reduceConstraints = !argv.fast;
 79options.verbose = argv.verbose || false;
 80if (argv.csource) {
 81    options.cSourceWriteStream = fs.createWriteStream(cSourceName);
 82}
 83if (argv.wasm) {
 84    options.wasmWriteStream = fs.createWriteStream(wasmName);
 85}
 86if (argv.r1cs) {
 87    options.r1csFileName = r1csName;
 88}
 89if (argv.sym) {
 90    options.symWriteStream = fs.createWriteStream(symName);
 91}
 92if (argv.newThreadTemplates) {
 93    options.newThreadTemplates = new RegExp(argv.newThreadTemplates);
 94}
 95
 96compiler(fullFileName, options).then( () => {
 97    let cSourceDone = false;
 98    let wasmDone = false;
 99    let symDone = false;
100    if (options.cSourceWriteStream) {
101        options.cSourceWriteStream.on("finish", () => {
102            cSourceDone = true;
103            finishIfDone();
104        });
105    } else {
106        cSourceDone = true;
107    }
108    if (options.wasmWriteStream) {
109        options.wasmWriteStream.on("finish", () => {
110            wasmDone = true;
111            finishIfDone();
112        });
113    } else {
114        wasmDone = true;
115    }
116    if (options.symWriteStream) {
117        options.symWriteStream.on("finish", () => {
118            symDone = true;
119            finishIfDone();
120        });
121    } else {
122        symDone = true;
123    }
124    function finishIfDone() {
125        if ((cSourceDone)&&(symDone)&&(wasmDone)) {
126            setTimeout(() => {
127                process.exit(0);
128            }, 300);
129        }
130    }
131}, (err) => {
132//    console.log(err);
133    console.log(err.stack);
134    if (err.pos) {
135        console.error(`ERROR at ${err.errFile}:${err.pos.first_line},${err.pos.first_column}-${err.pos.last_line},${err.pos.last_column}   ${err.errStr}`);
136    } else {
137        console.log(err.message);
138        if (argv.verbose) console.log(err.stack);
139    }
140    if (err.ast) {
141        console.error(JSON.stringify(err.ast, null, 1));
142    }
143    process.exit(1);
144});
145
146
147
148