Class: MsPac::Pellet

Inherits:
Hash
  • Object
show all
Defined in:
lib/mspac/pellet.rb

Constant Summary collapse

@@cache_dir = 
Pathname("~/.mspac/cache").expand_path
@@install_dir = 
Pathname("~/.mspac/installed").expand_path

Instance Method Summary collapse

Constructor Details

#initialize(json, pm) ⇒ Pellet

Returns a new instance of Pellet.



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# File 'lib/mspac/pellet.rb', line 110

def initialize(json, pm)
    json.keys.each do |key|
        self[key] = json[key]
    end

    @pm = pm
    @vcs = MsPac::VersionControl.new(self["vcs"])
end

Instance Method Details

#cached? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mspac/pellet.rb', line 8

def cached?
    Pathname.new("#{@@cache_dir}/#{name}").expand_path.exist?
end

#desc ⇒ Object 



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# File 'lib/mspac/pellet.rb', line 19

def desc
    return self["desc"]
end

#fetch ⇒ Object 



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# File 'lib/mspac/pellet.rb', line 40

def fetch
    FileUtils.mkdir_p(@@cache_dir)
    FileUtils.mkdir_p(@@install_dir)

    get_deps

    puts hilight_status("Fetching #{name}...")
    if (Pathname.new("#{@@cache_dir}/#{name}").expand_path.exist?)
        Dir.chdir("#{@@cache_dir}/#{name}") do
            @vcs.update
        end
    else
        Dir.chdir(@@cache_dir) do
            @vcs.clone(self["repo"])
            @vcs.ignore_file_perms(name)
        end
    end
end

#install ⇒ Object 



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# File 'lib/mspac/pellet.rb', line 119

def install
    if (!cached? && (self["vcs"] != "powerpellet"))
        raise MsPac::Error::PelletNotInstalled.new(name)
    end

    link if (!installed?)
    compile

    puts hilight_status("Installing #{name}...")
    execute("install")
end

#installed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mspac/pellet.rb', line 131

def installed?
    Pathname.new("#{@@install_dir}/#{name}").expand_path.exist?
end

#link ⇒ Object 



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# File 'lib/mspac/pellet.rb', line 135

def link
    if (!cached? && (self["vcs"] != "powerpellet"))
        raise MsPac::Error::PelletNotInstalled.new(name)
    end

    return if (self["vcs"] == "powerpellet")

    puts hilight_status("Linking #{name}...")
    FileUtils.ln_sf(
        "#{@@cache_dir}/#{name}",
        "#{@@install_dir}/#{name}"
    )
end

#lock ⇒ Object 



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# File 'lib/mspac/pellet.rb', line 149

def lock
    if (!installed?)
        raise MsPac::Error::PelletNotInstalled.new(name)
    end

    puts hilight_status("Locking #{name}...")
    FileUtils.touch("#{@@install_dir}/#{name}/.mspac_lock")
end

#name ⇒ Object 



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# File 'lib/mspac/pellet.rb', line 158

def name
    return self["name"]
end

#purge ⇒ Object 



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# File 'lib/mspac/pellet.rb', line 162

def purge
    if (!cached? && (self["vcs"] != "powerpellet"))
        raise MsPac::Error::PelletNotInstalled.new(name)
    end

    return if (self["vcs"] == "powerpellet")

    puts hilight_status("Purging #{name}...")
    FileUtils.rm_rf("#{@@cache_dir}/#{name}")
end

#remove(nosave = false) ⇒ Object 



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# File 'lib/mspac/pellet.rb', line 173

def remove(nosave = false)
    if (!installed?)
        raise MsPac::Error::PelletNotInstalled.new(name)
    end

    puts hilight_status("Removing #{name}...")
    execute("remove")
    unlink
    purge if (nosave)
end

#repo ⇒ Object 



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# File 'lib/mspac/pellet.rb', line 184

def repo
    return self["repo"]
end

#to_s ⇒ Object 



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# File 'lib/mspac/pellet.rb', line 188

def to_s
    header = [
        hilight_name(name),
        hilight_installed(installed?) || hilight_cached(cached?)
    ].join(" ")
    return [
        header,
        "    #{repo}",
        "    #{desc}"
    ].join("\n")
end

#unlink ⇒ Object 



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# File 'lib/mspac/pellet.rb', line 200

def unlink
    if (!installed?)
        raise MsPac::Error::PelletNotInstalled.new(name)
    end

    puts hilight_status("Unlinking #{name}...")
    FileUtils.rm_f("#{@@install_dir}/#{name}")
end

#unlock ⇒ Object 



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# File 'lib/mspac/pellet.rb', line 209

def unlock
    if (!installed?)
        raise MsPac::Error::PelletNotInstalled.new(name)
    end

    puts hilight_status("Unlocking #{name}...")
    FileUtils.rm_f("#{@@install_dir}/#{name}/.mspac_lock")
end

#update(force = false) ⇒ Object 



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# File 'lib/mspac/pellet.rb', line 218

def update(force = false)
    if (!installed?)
        raise MsPac::Error::PelletNotInstalled.new(name)
    end

    return if (self["vcs"] == "powerpellet")

    Dir.chdir("#{@@install_dir}/#{name}") do
        if (Pathname.new(".mspac_lock").expand_path.exist?)
            puts hilight_error("Locked: #{name}")
            return
        end

        puts hilight_status("Updating #{name}...")
        tip = @vcs.revision
        @vcs.update
        new_tip = @vcs.revision

        if ((tip != new_tip) || force)
            install
        end
    end
end