It looks like this question has been asked quite a few times with older versions of PDFMake, but hasn't been updated with what appears to be the latest directory structure. Plus, copying fonts into a root "fonts" folder isn't great.
How in the world do I get a server side version of PDFMake ("pdfmake": "^0.1.31") running on Node.js with the included vfs_fonts.js file?
Install using npm on command line
npm install pdfmake fs --save
Boot up a Node.js app index.js with the following:
var fonts = {
Roboto: {
normal: 'fonts/Roboto-Regular.ttf',
bold: 'fonts/Roboto-Medium.ttf',
italics: 'fonts/Roboto-Italic.ttf',
bolditalics: 'fonts/Roboto-MediumItalic.ttf'
}
};
var PdfPrinter = require('pdfmake/src/printer');
var printer = new PdfPrinter(fonts);
var dd = {
content: [
'First paragraph',
'Another paragraph'
]
}
var pdfDoc = printer.createPdfKitDocument(dd);
pdfDoc.pipe(fs.createWriteStream('basics.pdf')).on('finish',function(){
//success
});
pdfDoc.end();
Hit run and bam:
/usr/local/bin/node index.js
fs.js:640
return binding.open(pathModule._makeLong(path), stringToFlags(flags), mode);
^
Error: ENOENT: no such file or directory, open 'fonts/Roboto-Regular.ttf'
at Error (native)
at Object.fs.openSync (fs.js:640:18)
The problem seems to lie with the location of the fonts/Roboto... files. Client-side, this is solved by including the vfs_fonts.js file. Server-side, I'm not sure. There are NO fonts folder or .ttf files included. The meteor framework example I've found doesn't seem applicable.
Any ideas? All the official examples reference a src/fonts folder. Not a good way to go for an npm install server module.
This is what I did to resolve this.
Downloaded "roboto-font": "0.1.0" module and assign path of that fonts in Roboto object and it worked fine.
let fonts = {
Roboto: {
normal: 'node_modules/roboto-font/fonts/Roboto/roboto-regular-webfont.ttf',
bold: 'node_modules/roboto-font/fonts/Roboto/roboto-bold-webfont.ttf',
italics: 'node_modules/roboto-font/fonts/Roboto/roboto-italic-webfont.ttf',
bolditalics: 'node_modules/roboto-font/fonts/Roboto/roboto-bolditalic-webfont.ttf'
}
};
let printer = new pdfMake(fonts);
let pdfDoc = printer.createPdfKitDocument(pdfData);
pdfDoc.pipe(fs.createWriteStream(reportName));
pdfDoc.end();
You need to download first the Roboto font here https://fonts.google.com/specimen/Roboto
and copy them inside you fonts folder.
Update your fonts object like this:
var fonts = {
Roboto: {
normal: path.join(__dirname, '..', 'your_public_folder', '/fonts/Roboto-Regular.ttf'),
bold: path.join(__dirname, '..', 'your_public_folder', '/fonts/Roboto-Medium.ttf'),
italics: path.join(__dirname, '..', 'your_public_folder', '/fonts/Roboto-Italic.ttf'),
bolditalics: path.join(__dirname, '..', 'your_public_folder', '/fonts/Roboto-MediumItalic.ttf')
}
}
In this example, replace the 'your_public_folder' with folder name where you have all your html, css and js files.
Related
I'm building an electron app using Next.js and electron-next package so Electron can handle the "ouput" folder from Next.js.
The app works great (simple html "hello world" test for all) for development; however, when I'm packaging the app with electron-builder, the page doesn't load and the DevTools is saying that it cannot load local files. I can see the files generated by electron-builder and nowhere I can find the static html files. Is there something I'm missing? Are the static files are included in the *.asar file?
This is for Electron under Windows 10.
Below I'm showing the package.json file setup for electron-builder, as well as the call to open the initial HTML file on the app entry file (index.js)
// ---------package.json----------
"scripts": {
"start": "electron .",
"build": "next build renderer && next export renderer",
"dist": "npm run build && electron-builder"
},
"build": {
"files": [
"**/*",
"renderer"
]
},
// --------index.js----------
// I can confirm that /renderer/out/start.html file is created
const devPath = "http://localhost:8000/start"
const prodPath = path.resolve('renderer/out/start.html')
const entry = isDev ? devPath : ('file://' + prodPath)
console.log(entry)
win.loadURL(entry)
This is the error I get:
Not allowed to load local resource: file:///C:/Users//Desktop/text_exc_app/dist/win-unpacked/resources/renderer/out/start.html
I found from another post that you can also do this (using app.getAppPath()):
const prodPath = path.join(app.getAppPath() ,'renderer/out/start.html')
This solved my problem!
I'm still not sure as to what is the difference between the two ways of accessing the files is, and why one works and the other one doesn't.
I have a package with JS, CSS files 'mymodule' which I installed with yarn add module. So it has files like node_modules/mymodule/somefile.js.
I want to include js files from node_modules in Rails application:
# app/views/home/index.html.haml
= javascript_pack_tag 'mymodule/somefile.js (?? path to file??)'
I cannot create a pack in app/javascript/packs/mypack.js in main Rails application.
How to create a pack which is generated directly from files in node_modules so this pack can be included from view?
What to have in webpack.config.js?
const webpack = require("webpack");
module.exports = {
context: __dirname + "/app/javascript/packs",
entry: {
application: ["application.js", "application.css"],
mypack: [???]
},
output: {
path: __dirname + "/public/packs",
},
???
}
Given an application made in electron. The folder structure would look something like:
App
- assets
-models
- exe files
index.html
main.js
When executing the build following the recommendation of the site by entering the following command:
electron-packager . --overwrite --asar=true --platform=win32 --arch=ia32 --icon=assets/icons/win/icon.ico --prune=true --out=release-builds --version-string.CompanyName=CE --version-string.FileDescription=CE --version-string.ProductName="Electron Tutorial App"
The electron v.1.7.9 creates the build correctly, however it inside the release-builds / resources folder the app.asar file, so all the content that was inside my models folder becomes inaccessible. Inside this folder were .exe files that should be run on demand.
The system then looks for the files in the following url: parth_do_projeto / resources / app.asar / assets / models /, that is, it considers that the app.assar is a folder, but after the app.asar build is a file.
Since there were .exe files inside the original folder, the app.asar can not absorb executables.
What would be the way I keep these .exe files? If you build the build without the --asar parameter, the program works correctly, enter, all my project folder / source code is exposed.
My question is what is the best way to generate the build, keeping the code closed and making use of .exe files?
The short answer to your question is to use the unpackDir option for the asar option inside of electron-packager. Here is a sample of what this might look like:
'use strict';
... ...
var packager = require('electron-packager');
var electronPackage = require('electron/package.json');
var pkg = require('./package.json');
// pull the electron version from the package.json file
var electronVersion = electronPackage.version;
... ...
var opts = {
name: pkg.name,
platform: 'win32',
arch: 'ia32', // ia32, x64 or all
dir: './', // source location of app
out: './edist/', // destination location for app os/native binaries
ignore: config.electronignore, // don't include these directories in the electron app build
icon: config.icon,
asar: {unpackDir: config.excludeFromASAR}, // compress project/modules into an asar blob excluding some things.
overwrite: true,
prune: true,
electronVersion: electronVersion , // Tell the packager what version of electron to build with
appCopyright: pkg.copyright, // copyright info
appVersion: pkg.version, // The version of the application we are building
win32metadata: { // Windows Only config data
CompanyName: pkg.authors,
ProductName: pkg.name,
FileDescription: pkg.description,
OriginalFilename: pkg.name + '.exe'
}
};
// Build the electron app
gulp.task('build:electron', function (cb) {
console.log('Launching task to package binaries for ' + opts.name + ' v' + opts['appVersion']);
packager(opts, function (err, appPath) {
console.log(' <- packagerDone() ' + err + ' ' + appPath);
console.log(' all done!');
cb();
});
});
Using the electron-boilerplate to create an .exe for windows, it needs to run a .bat file. However, using npm start it works but when it gets packaged with npm run release, it doesn't run the .bat
This is my code for the function
const spawn = require('child_process').spawn;
const bat = spawn('cmd.exe', ['/c', 'Install.bat']);
bat.stdout.on('data', (data) => {
var str = String.fromCharCode.apply(null, data);
addLog(data);
console.info(str);
});
bat.stderr.on('data', (data) => {
var str = String.fromCharCode.apply(null, data);
addLog(data,"error");
console.error(str);
});
bat.on('exit', (code) => {
console.log(`Exit ${code}`);
});
Already checked for child-process
When you run electron via npm start it will typically set the current working directory to the folder for the app (containing your package.json). So it will look for cmd.exe in that folder.
After you build the app and run it, the current working directory might be somewhere else, for example C:\\ (on Windows). You can find the current working directory with process.cwd().
To find the app folder regardless of how the app is running, Electron provides electron.app.getAppPath().
So you can use it like this:
const path = require('path');
const cmdPath = path.join(electron.app.getAppPath(),'cmd.exe');
const bat = spawn(cmdPath, ['/c', 'Install.bat']);
What is the best strategy to deploy a Dart Web-ui app manually ?
pub deploy doesn't work for me and I have raised bug report. So am thinking what is the best way to manually deploy.
This is how I started:
1) From project root I compile the webui components (dwc.dart)
2) change directory to web/out then run dart2js
3) copy all .js files into that scripts/js public folder on server
4) copy appname.html to server changing css and script paths to option 3
5) Make sure dart.js is also in the same directory as item 3
this is as far as I got. So what else do I need to do ?
A few questions:
1) Do I manually change the file paths in the generated .js files to point to public folders on server for the files they are referencing and make sure those files are on server also ?
2) Do I need to copy all packages to server also ?
3) Any preferred file structure on server?
Any tips on this really appreciated.
Thanks.
I wrote a Grunt script for it (since I had no time to look up how to properly write code for Grunt, I did not share the code since it's a mess) but I basically do this:
compiling a list of files with dwc to a given out dir
compile it to javascript
clean up all non-deployable files
change some paths inside the HTML to match the server paths (for some reasons, this gets changed by the compilation process)
remove all packages except the ones I really need (JS interopt and browser)
Since I'm only using the JS version, I remove all dart packages. Since the paths inside the HTML files are up to you, you can already use a structure that suits you/your server.
I can provide you with a Grunt script to understand the order of tasks. Practically the order I use is this one:
Create the build directory. I usually use /build/web. I usually create these files (index.html, main.dart, /css and so on into the /web dir). I create the rest of components into /lib directory.
Compile the .dart file that contains the main() function ("main.dart" in my case for simpler projects) file to Javascript and put it into /build/web directory
Copy the other needed files and folders to the /build/web directory. Also, during this process you'll be copying the packages that your project needs. You'll see in the example provided below.
Remove all empty folders from the project
You can create a Grunt task to open the /index.html file in the browser once the building process has ended (I will not provide this example)
The structure of the dart test project:
testApp
- gruntfile.js
- package.js
/lib
/packages
/angular
/web
- index.html
- main.dart
/css
/img
So, the Grunt example script to cover steps from 1 - 4 looks like this (copy it to gruntfile.js):
module.exports = function (grunt) {
grunt.initConfig({
// 1.
// create build web directory
mkdir: {
build: {
options: {
create: ['build/web']
}
}
},
// 2.
// compile dart files
dart2js: {
options: {
// use this to fix a problem into dart2js node module. The module calls dart2js not dart2js.bat.
// this is needed for Windows. So use the path to your dart2js.bat file
"dart2js_bin": "C:/dart/dart-sdk/bin/dart2js.bat"
},
compile: {
files: {'build/web/main.dart.js': 'web/main.dart'}
}
},
// 3.
// copy all needed files, including all needed packages
// except the .dart files.
copy: {
build: {
files: [
{
expand: true,
src: [
'web/!(*.dart)',
'web/css/*.css',
'web/res/*.svg',
'web/packages/angular/**/!(*.dart)',
'web/packages/browser/**/!(*.dart)'
],
dest: 'build'
}
]
}
},
// 4.
// remove empty directories copied using the previous task
cleanempty: {
build: {
options: {
files: false
},
src: ['build/web/packages/**/*']
}
},
});
require('matchdep').filterDev('grunt-*').forEach(grunt.loadNpmTasks);
grunt.registerTask('default', [
'mkdir:build',
'dart2js',
'copy:build',
'cleanempty:build'
]);
};
So this is the Grunt script example.
Create a /gruntfile.js file into your project's root directory and copy/paste the script to it.
Create a /package.json file into your project's root directory and copy/paste the following script:
{
"name": "testApp",
"version": "0.0.1",
"description": "SomeDescriptionForTheTestApp",
"main": "",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "YourName",
"peerDependencies": {
"grunt-cli": "^0.1.13"
},
"devDependencies": {
"grunt": "^0.4.5",
"grunt-cleanempty": "^1.0.3",
"grunt-contrib-copy": "^0.7.0",
"grunt-dart2js": "0.0.5",
"grunt-mkdir": "^0.1.2",
"matchdep": "^0.3.0"
}
}
Open Command Prompt in Windows, Terminal in Linux, navigate to your project's root directory and use this command:
npm install
Wait untill all Grunt modules needed will be downloaded to your local project. Once this is finished, issue this command in Command Prompt or Terminal:
node -e "require('grunt').cli()"
You can use this to initiate Grunt default task without having Grunt installed globally on your system.
Now, to know the exact build structure for your project (including the packages that the project needs), make a build using Pub Build. Then you will be able to instruct Grunt to create the same dir structure.
You can add other tasks (like minification) if you want.
Hope this will help you all to understand the process and get you started with a test app first. Add your comments to make this even better and simplify it even more.