exec_shell_code.coffee

###
CoCalc: Collaborative web-based SageMath, Jupyter, LaTeX and Terminals.
Copyright 2015, SageMath, Inc., GPL v3.

Execute a command line or block of BASH code
###

winston = require('winston')

misc      = require('smc-util/misc')
misc_node = require('smc-util-node/misc_node')
message   = require('smc-util/message')

exports.exec_shell_code = (socket, mesg) ->
    #winston.debug("project_exec: #{misc.to_json(mesg)} in #{process.cwd()}")
    if mesg.command == "smc-jupyter"
        socket.write_mesg("json", message.error(id:mesg.id, error:"do not run smc-jupyter directly"))
        return
    misc_node.execute_code
        command     : mesg.command
        args        : mesg.args
        path        : misc_node.abspath(mesg.path)
        timeout     : mesg.timeout
        err_on_exit : mesg.err_on_exit
        max_output  : mesg.max_output
        bash        : mesg.bash
        cb          : (err, out) ->
            if err

                error = "Error executing command '#{mesg.command}' with args '#{mesg.args}' -- #{err}, #{out?.stdout}, #{out?.stderr}"
                if error.indexOf("Connection refused") != -1
                    error += "-- Email [email protected] if you need full internet access, which is disabled by default."
                # Too annoying and doesn't work.
                #if error.indexOf("=") != -1
                #    error += "-- This is a BASH terminal, not a Sage worksheet.  For Sage, use +New and create a Sage worksheet."
                err_mesg = message.error
                    id    : mesg.id
                    error : error
                socket.write_mesg('json', err_mesg)
            else
                #winston.debug(json(out))
                socket.write_mesg 'json', message.project_exec_output
                    id        : mesg.id
                    stdout    : out.stdout
                    stderr    : out.stderr
                    exit_code : out.exit_code