Class: Tetra::Bash

Inherits:
Object
  • Object
show all
Includes:
Logging, ProcessRunner
Defined in:
lib/tetra/facades/bash.rb

Overview

runs Bash with tetra-specific options

Instance Method Summary collapse

Methods included from ProcessRunner

#run, #run_interactive

Methods included from Logging

#log

Constructor Details

#initialize(project) ⇒ Bash

Returns a new instance of Bash.



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# File 'lib/tetra/facades/bash.rb', line 8

def initialize(project)
  @project = project
end

Instance Method Details

#bash(command = nil) ⇒ Object

runs bash in a subshell, returns list of commands that were run in the session



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# File 'lib/tetra/facades/bash.rb', line 14

def bash(command = nil)
  Tempfile.open("tetra-history") do |history_file|
    Tempfile.open("tetra-bashrc") do |bashrc_file|
      kit = Tetra::Kit.new(@project)

      ant_path = kit.find_executable("ant")
      ant_commandline = Tetra::Ant.commandline(@project.full_path, ant_path)

      mvn_path = kit.find_executable("mvn")
      mvn_commandline = Tetra::Mvn.commandline(@project.full_path, mvn_path)

      gradle_commandline = Tetra::Gradle.commandline(@project.full_path)

      bashrc_content = Bashrc.new(
        history_file: history_file.path,
        ant_in_kit: !ant_path.nil?,
        ant_commandline: ant_commandline,
        mvn_in_kit: !mvn_path.nil?,
        mvn_commandline: mvn_commandline,
        gradle_commandline: gradle_commandline
      ).to_s

      log.debug("writing bashrc file: #{bashrc_file.path}")
      log.debug(bashrc_content)

      bashrc_file.write(bashrc_content)
      bashrc_file.flush

      if command
        # SECURITY: Use array execution to prevent shell injection via 'command'
        # The 'bash -c' flag normally takes a single string, so we must be careful.
        # Ideally, passing it as a single array element ["bash", ..., "-c", command]
        # is handled safely by ProcessRunner if it uses exec/system/spawn.
        run(["bash", "--rcfile", bashrc_file.path, "-i", "-c", command])
        [command]
      else
        # Interactive mode
        run_interactive(["bash", "--rcfile", bashrc_file.path, "-i"])

        history = File.read(history_file)
        log.debug("history contents:")
        log.debug(history)

        history.split("\n").map(&:strip)
      end
    end
  end
end