const colors = require("colors/safe");
const _ = require("lodash");
const fs = require("fs");
const Table = require("cli-table3");
const utils = require("./utils");
const CodeChecksReport = require("./codechecksReport");
class GasTable {
constructor(config) {
this.config = config;
}
/**
* Formats and prints a gas statistics table. Optionally writes to a file.
* Based on Alan Lu's (github.com/@cag) stats for Gnosis
* @param {Object} info GasData instance with `methods` and `deployments` data
*/
generate(info) {
colors.enabled = !this.config.noColors || false;
// ---------------------------------------------------------------------------------------------
// Assemble section: methods
// ---------------------------------------------------------------------------------------------
const methodRows = [];
_.forEach(info.methods, (data, methodId) => {
if (!data) return;
let stats = {};
if (data.gasData.length) {
const total = data.gasData.reduce((acc, datum) => acc + datum, 0);
stats.average = Math.round(total / data.gasData.length);
stats.cost =
this.config.ethPrice && this.config.gasPrice
? utils.gasToCost(
stats.average,
this.config.ethPrice,
this.config.gasPrice
)
: colors.grey("-");
} else {
stats.average = colors.grey("-");
stats.cost = colors.grey("-");
}
const sortedData = data.gasData.sort((a, b) => a - b);
stats.min = sortedData[0];
stats.max = sortedData[sortedData.length - 1];
const uniform = stats.min === stats.max;
stats.min = uniform ? "-" : colors.cyan(stats.min.toString());
stats.max = uniform ? "-" : colors.red(stats.max.toString());
stats.numberOfCalls = colors.grey(data.numberOfCalls.toString());
const fnName = this.config.showMethodSig ? data.fnSig : data.method;
if (!this.config.onlyCalledMethods || data.numberOfCalls > 0) {
const section = [];
section.push(colors.grey(data.contract));
section.push(fnName);
section.push({ hAlign: "right", content: stats.min });
section.push({ hAlign: "right", content: stats.max });
section.push({ hAlign: "right", content: stats.average });
section.push({ hAlign: "right", content: stats.numberOfCalls });
section.push({
hAlign: "right",
content: colors.green(stats.cost.toString())
});
methodRows.push(section);
}
});
// ---------------------------------------------------------------------------------------------
// Assemble section: deployments
// ---------------------------------------------------------------------------------------------
const deployRows = [];
// Alphabetize contract names
info.deployments.sort((a, b) => a.name.localeCompare(b.name));
info.deployments.forEach(contract => {
let stats = {};
if (!contract.gasData.length) return;
const total = contract.gasData.reduce((acc, datum) => acc + datum, 0);
stats.average = Math.round(total / contract.gasData.length);
stats.percent = utils.gasToPercentOfLimit(stats.average, info.blockLimit);
stats.cost =
this.config.ethPrice && this.config.gasPrice
? utils.gasToCost(
stats.average,
this.config.ethPrice,
this.config.gasPrice
)
: colors.grey("-");
const sortedData = contract.gasData.sort((a, b) => a - b);
stats.min = sortedData[0];
stats.max = sortedData[sortedData.length - 1];
const uniform = stats.min === stats.max;
stats.min = uniform ? "-" : colors.cyan(stats.min.toString());
stats.max = uniform ? "-" : colors.red(stats.max.toString());
const section = [];
section.push({ hAlign: "left", colSpan: 2, content: contract.name });
section.push({ hAlign: "right", content: stats.min });
section.push({ hAlign: "right", content: stats.max });
section.push({ hAlign: "right", content: stats.average });
section.push({
hAlign: "right",
content: colors.grey(`${stats.percent} %`)
});
section.push({
hAlign: "right",
content: colors.green(stats.cost.toString())
});
deployRows.push(section);
});
// ---------------------------------------------------------------------------------------------
// Assemble section: headers
// ---------------------------------------------------------------------------------------------
// Configure indentation for RTD
const leftPad = this.config.rst ? " " : "";
// Format table
const table = new Table({
style: { head: [], border: [], "padding-left": 2, "padding-right": 2 },
chars: {
mid: "·",
"top-mid": "|",
"left-mid": `${leftPad}·`,
"mid-mid": "|",
"right-mid": "·",
left: `${leftPad}|`,
"top-left": `${leftPad}·`,
"top-right": "·",
"bottom-left": `${leftPad}·`,
"bottom-right": "·",
middle: "·",
top: "-",
bottom: "-",
"bottom-mid": "|"
}
});
// Format and load methods metrics
const solc = utils.getSolcInfo(this.config.metadata);
let title = [
{
hAlign: "center",
colSpan: 2,
content: colors.grey(`Solc version: ${solc.version}`)
},
{
hAlign: "center",
colSpan: 2,
content: colors.grey(`Optimizer enabled: ${solc.optimizer}`)
},
{
hAlign: "center",
colSpan: 1,
content: colors.grey(`Runs: ${solc.runs}`)
},
{
hAlign: "center",
colSpan: 2,
content: colors.grey(`Block limit: ${info.blockLimit} gas`)
}
];
let methodSubtitle;
if (this.config.ethPrice && this.config.gasPrice) {
const gwei = parseInt(this.config.gasPrice);
const rate = parseFloat(this.config.ethPrice).toFixed(2);
const currency = `${this.config.currency.toLowerCase()}`;
const token = `${this.config.token.toLowerCase()}`;
methodSubtitle = [
{ hAlign: "left", colSpan: 2, content: colors.green.bold("Methods") },
{
hAlign: "center",
colSpan: 3,
content: colors.grey(`${gwei} gwei/gas`)
},
{
hAlign: "center",
colSpan: 2,
content: colors.red(`${rate} ${currency}/${token}`)
}
];
} else {
methodSubtitle = [
{ hAlign: "left", colSpan: 7, content: colors.green.bold("Methods") }
];
}
const header = [
colors.bold("Contract"),
colors.bold("Method"),
colors.green("Min"),
colors.green("Max"),
colors.green("Avg"),
colors.bold("# calls"),
colors.bold(`${this.config.currency.toLowerCase()} (avg)`)
];
// ---------------------------------------------------------------------------------------------
// Final assembly
// ---------------------------------------------------------------------------------------------
table.push(title);
table.push(methodSubtitle);
table.push(header);
methodRows.sort((a, b) => {
const contractName = a[0].localeCompare(b[0]);
const methodName = a[1].localeCompare(b[1]);
return contractName || methodName;
});
methodRows.forEach(row => table.push(row));
if (deployRows.length) {
const deploymentsSubtitle = [
{
hAlign: "left",
colSpan: 2,
content: colors.green.bold("Deployments")
},
{ hAlign: "right", colSpan: 3, content: "" },
{ hAlign: "left", colSpan: 1, content: colors.bold(`% of limit`) }
];
table.push(deploymentsSubtitle);
deployRows.forEach(row => table.push(row));
}
// ---------------------------------------------------------------------------------------------
// RST / ReadTheDocs / Sphinx output
// ---------------------------------------------------------------------------------------------
let rstOutput = "";
if (this.config.rst) {
rstOutput += `${this.config.rstTitle}\n`;
rstOutput += `${"=".repeat(this.config.rstTitle.length)}\n\n`;
rstOutput += `.. code-block:: shell\n\n`;
}
let tableOutput = rstOutput + table.toString();
// ---------------------------------------------------------------------------------------------
// Print
// ---------------------------------------------------------------------------------------------
if (this.config.outputFile) {
fs.writeFileSync(this.config.outputFile, tableOutput);
if (this.config.forceConsoleOutput)
console.log(tableOutput);
} else {
console.log(tableOutput);
}
this.saveCodeChecksData(info);
// For integration tests
if (process.env.DEBUG_CODECHECKS_TABLE) {
const report = new CodeChecksReport(this.config);
console.log(report.generate(info));
}
}
/**
* Writes acccumulated data and the current config to gasReporterOutput.json so it
* can be consumed by codechecks
* @param {Object} info GasData instance
*/
saveCodeChecksData(info) {
delete this.config.provider;
delete info.provider;
const output = {
namespace: "ethGasReporter",
config: this.config,
info: info
};
if (process.env.CI) {
fs.writeFileSync("./gasReporterOutput.json", JSON.stringify(output));
}
}
}
module.exports = GasTable;
