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("t", "wat")
 38    .alias("s", "sym")
 39    .alias("r", "r1cs")
 40    .alias("n", "newThreadTemplates")
 41    .help("h")
 42    .alias("h", "help")
 43    .option("verbose", {
 44        alias: "v",
 45        type: "boolean",
 46        description: "Run with verbose logging"
 47    })
 48    .option("fast", {
 49        alias: "f",
 50        type: "boolean",
 51        description: "Do not optimize constraints"
 52    })
 53    .epilogue(`Copyright (C) 2018  0kims association
 54    This program comes with ABSOLUTELY NO WARRANTY;
 55    This is free software, and you are welcome to redistribute it
 56    under certain conditions; see the COPYING file in the official
 57    repo directory at  https://github.com/iden3/circom `)
 58    .argv;
 59
 60
 61let inputFile;
 62if (argv._.length == 0) {
 63    inputFile = "circuit.circom";
 64} else if (argv._.length == 1) {
 65    inputFile = argv._[0];
 66} else  {
 67    console.log("Only one circuit at a time is permited");
 68    process.exit(1);
 69}
 70
 71const fullFileName = path.resolve(process.cwd(), inputFile);
 72const fileName = path.basename(fullFileName, ".circom");
 73const cSourceName = typeof(argv.csource) === "string" ?  argv.csource : fileName + ".cpp";
 74const wasmName = typeof(argv.wasm) === "string" ?  argv.wasm : fileName + ".wasm";
 75const watName = typeof(argv.wat) === "string" ?  argv.wat : fileName + ".wat";
 76const r1csName = typeof(argv.r1cs) === "string" ?  argv.r1cs : fileName + ".r1cs";
 77const symName = typeof(argv.sym) === "string" ?  argv.sym : fileName + ".sym";
 78
 79const options = {};
 80options.reduceConstraints = !argv.fast;
 81options.verbose = argv.verbose || false;
 82if (argv.csource) {
 83    options.cSourceWriteStream = fs.createWriteStream(cSourceName);
 84}
 85if (argv.wasm) {
 86    options.wasmWriteStream = fs.createWriteStream(wasmName);
 87}
 88if (argv.wat) {
 89    options.watWriteStream = fs.createWriteStream(watName);
 90}
 91if (argv.r1cs) {
 92    options.r1csFileName = r1csName;
 93}
 94if (argv.sym) {
 95    options.symWriteStream = fs.createWriteStream(symName);
 96}
 97if (argv.newThreadTemplates) {
 98    options.newThreadTemplates = new RegExp(argv.newThreadTemplates);
 99}
100
101compiler(fullFileName, options).then( () => {
102    let cSourceDone = false;
103    let wasmDone = false;
104    let symDone = false;
105    let watDone = false;
106    if (options.cSourceWriteStream) {
107        options.cSourceWriteStream.on("finish", () => {
108            cSourceDone = true;
109            finishIfDone();
110        });
111    } else {
112        cSourceDone = true;
113    }
114    if (options.wasmWriteStream) {
115        options.wasmWriteStream.on("finish", () => {
116            wasmDone = true;
117            finishIfDone();
118        });
119    } else {
120        wasmDone = true;
121    }
122    if (options.watWriteStream) {
123        options.watWriteStream.on("finish", () => {
124            watDone = true;
125            finishIfDone();
126        });
127    } else {
128        watDone = true;
129    }
130    if (options.symWriteStream) {
131        options.symWriteStream.on("finish", () => {
132            symDone = true;
133            finishIfDone();
134        });
135    } else {
136        symDone = true;
137    }
138    function finishIfDone() {
139        if ((cSourceDone)&&(symDone)&&(wasmDone)&&(watDone)) {
140            setTimeout(() => {
141                process.exit(0);
142            }, 300);
143        }
144    }
145}, (err) => {
146//    console.log(err);
147    console.log(err.stack);
148    if (err.pos) {
149        console.error(`ERROR at ${err.errFile}:${err.pos.first_line},${err.pos.first_column}-${err.pos.last_line},${err.pos.last_column}   ${err.errStr}`);
150    } else {
151        console.log(err.message);
152        if (argv.verbose) console.log(err.stack);
153    }
154    if (err.ast) {
155        console.error(JSON.stringify(err.ast, null, 1));
156    }
157    process.exit(1);
158});
159
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161
162