How do I include this directory in the $PATH env var? - node.js

I'm building a package for Github's Atom editor and Im running into a challenge trying to get a child process to execute with node js. I'm pretty sure that the problem is that the environment that Atom runs in, doesn't include the path to the mrt script. So when I run this from within my package:
exec = require("child_process").exec
child = undefined
child = exec("/usr/local/bin/mrt add iron-router", { cwd: path },(error, stdout, stderr) -
console.log "stdout: " + stdout
console.log "stderr: " + stderr
console.log "exec error: " + error if error isnt null
return
)
in the console, I get:
Atom has a web inspector built right into it and you can actually see the Paths that atom has included. So when I go to Atom's console and type: process.env.PATH it shows the paths: /usr/bin:/bin:/usr/sbin:/sbin. So I somehow need to make atom aware of that mrt script's path. Anyone know how I might go about doing that?
I also reached out on on Atom's discussion forum yesterday, but have yet to come up with a solution.
Edit:
I should also note that the normal command for excuting the mrt package installer is mrt add package-name but as advised on Atom's discussion forum, I've been using the full path.
Edit 2:
I've creating symlinks to node in my /usr/bin directory, and it's working now. Now I'm trying to get node to create the symlinks for me using fs.symlink but that doesn't seem to be working.

To sum it up, the problem is that Atom uses PATH from where it is launched. Consequently, the path to node and the path to mrt where not included in Atom's path. The solution came to me when someone on the Atom Discussion forum pointed out Atom's Class BufferedNodeProcess.
At the time of Answer there is a slight bug with that class so I was not able to use it - the Github team works fast, I wouldn't be surprised if it was fixed within the next couple days. I was, however, able use some of the code to get Atom's environments. Also, I ended up using node's spawn method instead of execute since that's what BufferedNodeProcess uses. Plus you can read each individual line of the stdout.
options =
cwd: atom.project.getPath()
options.env = Object.create(process.env) unless options.env?
options.env["ATOM_SHELL_INTERNAL_RUN_AS_NODE"] = 1
node = (if process.platform is "darwin" then path.resolve(process.resourcesPath, "..", "Frameworks", "Atom Helper.app", "Contents", "MacOS", "Atom Helper") else process.execPath)
mrt = spawn(node, [
"/usr/local/lib/node_modules/meteorite/bin/mrt.js"
"add"
"iron-router"
], options )
mrt.stdout.on "data", (data) ->
console.log "stdout: " + data
return
mrt.stderr.on "data", (data) ->
console.log "stderr: " + data
return
mrt.on "close", (code) ->
console.log "child process exited with code " + code
return

Related

Node Module Path Execution Windows 10

$ npm install -g static-server
C:\Users\Stuart's\AppData\Roaming\npm\static-server -> C:\Users\Stuart's\AppData\Roaming\npm\node_modules\static-server\bin\static-server.js
+ static-server#2.2.1
added 13 packages from 6 contributors in 1.238s
Stuart's#Stuarts-PC MINGW64 ~/Documents/GitHub/PIES-Network/dapp (master)
$ static-server
module.js:549
throw err;
^
Error: Cannot find module 'C:\c\Users\Stuart's\AppData\Roaming\npm\node_modules\static-server\bin\static-server.js'
at Function.Module._resolveFilename (module.js:547:15)
at Function.Module._load (module.js:474:25)
at Function.Module.runMain (module.js:693:10)
at startup (bootstrap_node.js:191:16)
at bootstrap_node.js:612:3
clearly "C:\c\User.." is not a correct path to my node modules directory. I have checked my local paths and everything looks fine. Any help is appreciated Thanks
This looks a lot like you have accidentally created a directory called C:\c\Users\Stuart's\AppData\Roaming\npm wherein is located the file static-server.cmd. You have a path variable pointing there also somehow.
When static-server is invoked control is passed to the static-server.cmd batch file at this incorrect location.
node 'C:\c\Users\Stuart's\AppData\Roaming\npm\node_modules\static-server\bin\static-server.js
But static-server.js is located as per your install at:
C:\Users\Stuart's\AppData\Roaming\npm\node_modules\static-server\bin\static-server.js.
In these circumstances you will get exactly the errors shown.
It could be some variation on this and I am happy to help further, but step 1 is to check above because for sure the incorrect path parameter is being passed to node (which of course load and executes static-server.js).
EDIT: Here are some further tests:
Search for all instances of "static-server" on your hard disc.
Trying to do this with Explorer will take a long time.
The best and fastest way is to download a tool called UltraSeach.
Here are the search results from my PC ( I created the extra C:\c directory for test purposes).
Check for multiple versions of static-server.cmd or other executable file of that name.
Using a text editor (like notepad) open each static-server.cmd file and add these ECHO commands at the top
(ie before the line staret with #IF EXIST "%~dp0\node.exe" (
ECHO "File 1 executing"
ECHO "%~dp0"
PAUSE
If more than one version put "File 2", "File 3" etc.
Now type static-server at a command prompt and it should
Echo the message "File n executing"
Echo the directory it is executing from
Wait for you to press a key to continue.....
Note the directory it is executing from (call it \CURRENT say)
You can see from static-server.cmd that it then starts node
and tried to execute \CURRENT\node_modules\static-server\bin\static-server.js
In your case its not finding static-server.js where node expects to find it.
Look back to search results in step 1 and see where static-server.js is actually located.
Compare this to where node expects to find it in step 5.
Your problem is either that:
The static-server.cmd being executed is located in the wrong place OR
static-server.js is located at the wrong place.
Here is an additional test. Open a command window and navigate to the directory which has static-server.js. As per the screen-shot it is at C:\Users\Brendan\AppData\Roaming\npm\node_modules\static-server\bin in my case.
Then type node static-server.js. This bypasses the static-server.cmd file altogether, and should start the server. Worked in my case.
Let me know how you go!

Using node-cmd module while handling Squirrel Events function

I'm building a desktop app for Windows using electron-packager and electron-squirrel-startup, I would like to execute some Windows cmd commands during the installation of my application. To do so I was planning to use node-cmd node module, but I doesn't really work inside the handleSquirrelEvents function. An example command like this:
function handleSquirrelEvent(application) {
const squirrelEvent = process.argv[1];
switch (squirrelEvent) {
case '--squirrel-install':
case '--squirrel-updated':
var cmd=require('node-cmd');
cmd.run('touch example.created.file');
}
};
Seems to work. A file example.created.file in my_app/node_module/node-cmd/example directory is created.
But any other code does not work. Even if I only change the name of the file to be "touched" nothing happens.
Ok, example.created.file already exists in this directory and I suspect that you can only use update.exe supported commands in case '--squirrel-updated' sections. So this will not work.

.arangosh.rc not sourced on Mac OSX

I am following the ArangoDB documentation, and I'm currently following the section ArangoDB Shell Configuration; here, they describe an .arangosh.rc file that is sourced from your home directory, placing custom code into the arango shell's global scope. Following the documentation to a T, I've made an .arangosh.rc file in my home directory ~/.arangosh.rc and added the example function
timed = function (cb) {
var internal = require("internal");
var start = internal.time();
cb();
internal.print("execution took: ", internal.time() - start);
};
I've tried exiting and restarting the arango shell as well as completely restarting my terminal session but I can't get arangosh to source the rc file. When I try invoking timed() I get a
ReferenceError: timed is not defined
Blockquote
As far as I can see the condition for sourcing ~/.arangosh.rc changed somewhere in 2.6, but this looks like an error to me. I have reverted that change in the 2.7, 2.8 and devel branches, so the file will get sourced there now. The fix will be contained in the next official releases.
If you want to apply it before that, the commit id for 2.7 is 8e85a2fbb67c8c50c75cf93aefb7365e1e9fd7d1
It also looks like that in 2.7 any "globals" in the rc file need to be attached to the global object. For example,
timed = function (cb) { ... };
should become
global.timed = function (cb) { ... };
I have also updated the docs to reflect this change.

LUAROCKS on windows installs rocks oddly

On Linux, luarocks installs rocks to
/usr/local/lib/luarocks/rock
and puts a corresponding lua file into
/usr/local/share/lua/5.3
On Windows(LUA 5.1), the rocks are in:
C:\Program Files (x86)\LuaRocks\systree\lib\luarocks
and the lua files are in:
C:\Program Files (x86)\LuaRocks\systree\share\lua\5.1
but lua cannot find them on the windows install.
I must have a PATH problem
This is some of my PATH:
Path=C:\Program Files (x86)\Lua\5.1\lua\;C:\Program Files (x86)\LuaRocks\2.2;C:\Program Files (x86)\LuaRocks\2.2\lua\luarocks;C:\Program Files (x86)\LuaRocks\systree\bin;C:\Perl64\site\bin;C:\UnxUpdts;C:\Perl64\bin;C:\Program Files (x86)\Lua\5.1;C:\Program Files (x86)\Lua\5.1\clibs
I am trying ZeroBraneStudio as the IDE and my system prefs specify this path
path.lua = 'C:\Program Files (x86)\Lua\5.1'
I ran
luarocks install inspect
and that generated the necessary files. Then I wrote this simple test code:
require "inspect"
assert(inspect(1) == "1")
assert(inspect("Hello") == '"Hello"')
and got this error
Program starting as '"E:\Anonamouse\ZeroBraneStudio\bin\lua.exe" -e "io.stdout:setvbuf('no')" "E:\Anonamouse\ZeroBraneStudio\myprograms\DemoInspectModule.lua"'.
Program 'lua.exe' started in 'E:\Anonamouse\ZeroBraneStudio\myprograms' (pid: 14776).
E:\Anonamouse\ZeroBraneStudio\bin\lua.exe: ...namouse\ZeroBraneStudio\myprograms\DemoInspectModule.lua:2: attempt to call global 'inspect' (a nil value)
stack traceback:
...namouse\ZeroBraneStudio\myprograms\DemoInspectModule.lua:2: in main chunk
[C]: at 0x00402a57
Program completed in 0.04 seconds (pid: 14776).
I get the same error when I execute the same simple app directly in the console.(That tells me that PATH variable for lua is working)
What am I missing?
Judging from the error message you quoted the require "inspect" worked just fine, but the module didn't set a global variable inspect. For some time now it has been policy to not set globals from within modules, but instead return something (usually the module table) from the module code, which in turn gets passed down via require. So probably something like
local inspect = require "inspect"
assert(inspect(1) == "1")
assert(inspect("Hello") == '"Hello"')
or
local inspect = require "inspect"
assert(inspect.inspect(1) == "1")
assert(inspect.inspect("Hello") == '"Hello"')
should work.

TiddlyWiki on node-webkit not displaying content

I followed the tutorial (In the "Getting Started" section) on how to use TiddlyWiki with node-webkit. When I then run nw.exe it doesn't display anything.
Im on windows (64bit) and have installed the 32bit version for windows. Not sure what Im doing wrong or if its just a bug.
I have also tried adding index.html and package.json to an archive (called app.nw) and run it with nw.exe, but still no luck.
I followed the instructions and couldn't get it to work either. I used TiddlyWiki 5.0.13-beta, Windows 64 bit, node-webkit 0.9.2. It throws an exception that it can't find sjcl.js. sjcl.js is packaged into TiddlyWiki.
I suggest to use TiddlyDesktop instead. It's node-webkit ready-made for TiddlyWiki. It works like a charm for me under Windows. You can get it here:
https://github.com/Jermolene/TiddlyDesktop/releases
I suspect the plain node-webkit solution has lost attention, now that there is TiddlyDesktop.
The offending code is in bootprefix.js. When bootprefix runs it checks if it is using node and then assumes it is a Node JS file based system. One solution, on a per-TiddlyWiki basis is to modify the following code near the top of bootprefix.js, which is in a script tag in single file TiddlyWiki.
// Detect platforms
$tw.browser = typeof(window) !== "undefined" ? {} : null;
$tw.node = typeof(process) === "object" ? {} : null;
$tw.nodeWebKit = $tw.node && global.window && global.window.nwDispatcher ? {} : null;
if($tw.nodeWebKit) $tw.node = null; //this is the line to add.

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