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Minor JS code cleanup
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Dennis Philip committed Nov 5, 2016
1 parent b464432 commit def7cc5
Showing 1 changed file with 104 additions and 103 deletions.
207 changes: 104 additions & 103 deletions html_resources/generate.js
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Original file line number Diff line number Diff line change
@@ -1,139 +1,140 @@
const fs = require('fs');
const path = require('path');

const rootDataDir = "webpage";
const outputFile = "./output_includes/web_data.h";
const headerFileLocation = "./template_web_data.h.txt";

var files = walkSync(rootDataDir);
var currentFileName = "";
var currentFileLength = -1;
var encoding = "";
let files = walkSync(rootDataDir);
let currentFileName = "";
let currentFileLength = -1;
let encoding = "";

var outputString = "";
let outputString = "";

var headerFile = fs.readFileSync(headerFileLocation, 'utf8');
let headerFile = fs.readFileSync(headerFileLocation, 'utf8');

String.prototype.replaceAll = function(search, replacement) {
var target = this;
let target = this;
return target.replace(new RegExp(search, 'g'), replacement);
};

for (var i = 0; i < files.length; i++){
currentFileName = files[i];
encoding = getEncoding(currentFileName);
outputString += "\n\n\n" + currentFileName + "\nEncoding: " + encoding + " Length: ";
var currentData = gotData(fs.readFileSync(rootDataDir + "/" + currentFileName, encoding));
for (let i = 0; i < files.length; i++) {
currentFileName = files[i];
encoding = getEncoding(currentFileName);
outputString += "\n\n\n" + currentFileName + "\nEncoding: " + encoding + " Length: ";
let currentData = gotData(fs.readFileSync(rootDataDir + "/" + currentFileName, encoding));

headerFile = headerFile.replaceAll("##" + currentFileName + "-data##", currentData);
headerFile = headerFile.replaceAll("##" + currentFileName + "-length##", currentFileLength);
headerFile = headerFile.replaceAll("##" + currentFileName + "-length-digits##", ("" + currentFileLength).length);
headerFile = headerFile.replaceAll("##" + currentFileName + "-length_as_array##", formatToArray(currentFileLength));
headerFile = headerFile.replaceAll("##" + currentFileName + "-data##", currentData);
headerFile = headerFile.replaceAll("##" + currentFileName + "-length##", currentFileLength);
headerFile = headerFile.replaceAll("##" + currentFileName + "-length-digits##", ("" + currentFileLength).length);
headerFile = headerFile.replaceAll("##" + currentFileName + "-length_as_array##", formatToArray(currentFileLength));
}

console.log(outputString);

var file = fs.openSync(outputFile, 'w');
let file = fs.openSync(outputFile, 'w');
fs.writeFile(outputFile, headerFile, function(err) {
if(err) {
return console.log(err);
if (err) {
return console.error(err);
}

console.log("The file was saved!");
});

function getEncoding(file){
if (currentFileName.indexOf(".") < 0){
return 'hex';
}
var extention = file.substring(file.lastIndexOf("."), file.length);
extention = extention.toLowerCase();
switch (extention){
case ".html":
case ".htm":
case ".txt":
case ".css":
case ".js":
return 'utf8'
default:
return 'hex'
}
function getEncoding(filename) {
if (currentFileName.indexOf(".") < 0) {
return 'hex';
}
// eg: filename.tar.gz => gz
let extension = path.extname(filename).toLowerCase();
switch (extension) {
case ".html":
case ".htm":
case ".txt":
case ".css":
case ".js":
return 'utf8';
default:
return 'hex';
}

}

function gotData(data){
currentFileLength = data.length;
outputString += currentFileLength + "\n\n\n";
if (encoding == 'utf8'){
outputString += '"' + excape(data) + '";';
return excape(data);
} else {
outputString += "{\n" + outputHexArray(data) + "\n};";
return outputHexArray(data);
}
function gotData(data) {
currentFileLength = data.length;
outputString += currentFileLength + "\n\n\n";
if (encoding == 'utf8') {
outputString += '"' + excape(data) + '";';
return excape(data);
} else {
outputString += "{\n" + outputHexArray(data) + "\n};";
return outputHexArray(data);
}
}

// source https://gist.github.com/kethinov
// List all files in a directory in Node.js recursively in a synchronous fashion
function walkSync(dir, filelist, path) {
path = path || "";
var files = fs.readdirSync(dir);
filelist = filelist || [];
files.forEach(function(file) {
if (fs.statSync(dir + '/' + file).isDirectory()) {
filelist = walkSync(dir + '/' + file, filelist, path + file + "/");
}
else {
filelist.push(path + file);
}
});
return filelist;
};
path = path || "";
let files = fs.readdirSync(dir);
filelist = filelist || [];
files.forEach(function(file) {
if (fs.statSync(dir + '/' + file).isDirectory()) {
filelist = walkSync(dir + '/' + file, filelist, path + file + "/");
} else {
filelist.push(path + file);
}
});
return filelist;
}

function formatToArray (string){
var output = "'";
var seperator = "', '";
string = "" + string;
for (var a = 0; a < string.length - 1; a++){
output += string.charAt(a) + seperator;
}
return output + string.charAt(string.length - 1) + "',";
function formatToArray(string) {
let output = "'";
let seperator = "', '";
string = "" + string;
for (let a = 0; a < string.length - 1; a++) {
output += string.charAt(a) + seperator;
}
return output + string.charAt(string.length - 1) + "',";
}

// source https://github.com/joliss/js-string-escape
function excape (string) {
return ('' + string).replace(/["'\\\t\n\r\u2028\u2029]/g, function (character) {
// Escape all characters not included in SingleStringCharacters and
// DoubleStringCharacters on
// http://www.ecma-international.org/ecma-262/5.1/#sec-7.8.4
switch (character) {
case '"':
case "'":
case '\\':
return '\\' + character
// Four possible LineTerminator characters need to be escaped:
case '\n':
return '\\n'
case '\t':
return '\\t'
case '\r':
return '\\r'
case '\u2028':
return '\\u2028'
case '\u2029':
return '\\u2029'
}
});
function excape(string) {
return ('' + string).replace(/["'\\\t\n\r\u2028\u2029]/g, function(character) {
// Escape all characters not included in SingleStringCharacters and
// DoubleStringCharacters on
// http://www.ecma-international.org/ecma-262/5.1/#sec-7.8.4
switch (character) {
case '"':
case "'":
case '\\':
return '\\' + character;
// Four possible LineTerminator characters need to be escaped:
case '\n':
return '\\n';
case '\t':
return '\\t';
case '\r':
return '\\r';
case '\u2028':
return '\\u2028';
case '\u2029':
return '\\u2029';
}
});
}
function outputHexArray(string) {
let returnString = "";
for (let a = 0; a < string.length; a += 2) {
returnString += "0x" + string.substring(a, a + 2);

if (a + 2 !== string.length) {
returnString += ", ";
}
if ((((a - 22) % 24) === 0) && (a !== 0) && (a + 2 !== string.length)) {
returnString += "\n";
}
}
return returnString;
}
function outputHexArray (string) {
var returnString = "";
for (var a = 0; a < string.length; a += 2){
returnString += "0x" + string.substring(a, a + 2);

if (a + 2 != string.length) {
returnString += ", ";
}
if ((( (a - 22) % 24) == 0)&&(a != 0) && (a + 2 != string.length)){
returnString += "\n";
}
}
return returnString;
}

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