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]")
34    .alias("o", "output")
35    .help("h")
36    .alias("h", "help")
37    .option("verbose", {
38        alias: "v",
39        type: "boolean",
40        description: "Run with verbose logging"
41    })
42    .option("fast", {
43        alias: "f",
44        type: "boolean",
45        description: "Do not optimize constraints"
46    })
47    .epilogue(`Copyright (C) 2018  0kims association
48    This program comes with ABSOLUTELY NO WARRANTY;
49    This is free software, and you are welcome to redistribute it
50    under certain conditions; see the COPYING file in the official
51    repo directory at  https://github.com/iden3/circom `)
52    .argv;
53
54
55let inputFile;
56if (argv._.length == 0) {
57    inputFile = "circuit.circom";
58} else if (argv._.length == 1) {
59    inputFile = argv._[0];
60} else  {
61    console.log("Only one circuit at a time is permited");
62    process.exit(1);
63}
64
65const fullFileName = path.resolve(process.cwd(), inputFile);
66const outName = argv.output ?  argv.output : "circuit.json";
67
68compiler(fullFileName, {reduceConstraints: !argv.fast, verbose: argv.verbose}).then( (cir) => {
69    fs.writeFileSync(outName, JSON.stringify(cir, null, 1), "utf8");
70    process.exit(0);
71}, (err) => {
72//    console.log(err);
73    console.log(err.stack);
74    if (err.pos) {
75        console.error(`ERROR at ${err.errFile}:${err.pos.first_line},${err.pos.first_column}-${err.pos.last_line},${err.pos.last_column}   ${err.errStr}`);
76    } else {
77        console.log(err.message);
78        if (argv.verbose) console.log(err.stack);
79    }
80    if (err.ast) {
81        console.error(JSON.stringify(err.ast, null, 1));
82    }
83    process.exit(1);
84});
85
86
87
88