Class: BuildTool::VCS::Archive

Inherits:
Base
  • Object
show all
Defined in:
lib/build-tool/vcs/archive.rb

Overview

class ArchiveConfiguration

Defined Under Namespace

Classes: ArchiveError, FileNotFoundError

Instance Attribute Summary

Attributes inherited from Base

#config

Instance Method Summary collapse

Methods inherited from Base

#check_for_sshkey, #configure, #gc, #initialize, #local_path, #local_path_exist?, #prepare_for_rebase, #ready_for_fetch, #ready_for_rebase, #recipe

Constructor Details

This class inherits a constructor from BuildTool::VCS::Base

Instance Method Details

#apply_patches(patches) ⇒ Object 



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# File 'lib/build-tool/vcs/archive.rb', line 95

def apply_patches( patches )
    patches.each do |patch|
        full_path = self.recipe.find_first_config_file( "custom/#{config.module.name}/patches/#{patch}.patch" )
        if full_path.nil?
            raise FileNotFoundError, "Patch '#{patch}' not found from module #{config.module.name}."
        end
        logger.info "Applying patch #{patch}"
        self.class.execute( "patch -p1 -i #{full_path}", local_path )
    end

end

#apply_patches_after_rebase? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/build-tool/vcs/archive.rb', line 71

def apply_patches_after_rebase?
    true
end

#archive_local_path ⇒ Object 



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# File 'lib/build-tool/vcs/archive.rb', line 75

def archive_local_path
    "#{File.dirname( local_path )}/#{archive_name}"
end

#archive_name ⇒ Object 



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# File 'lib/build-tool/vcs/archive.rb', line 79

def archive_name
    File.basename( archive_url )
end

#archive_url ⇒ Object 



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# File 'lib/build-tool/vcs/archive.rb', line 83

def archive_url
    "#{config.repository.url}/#{config.remote_path}"
end

#checkedout? ⇒ Boolean

METHODS

Returns:

  • (Boolean) 


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# File 'lib/build-tool/vcs/archive.rb', line 91

def checkedout?
    File.exist? archive_local_path
end

#clone(verbose = false) ⇒ Object 



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# File 'lib/build-tool/vcs/archive.rb', line 107

def clone( verbose = false )
    fetch( verbose )
    rebase( verbose )
    0
end

#fetch(verbose = false) ⇒ Object 



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# File 'lib/build-tool/vcs/archive.rb', line 113

def fetch( verbose = false )
    # Check if the archive is already downloaded
    if File.exist? archive_local_path
        logger.trace "Archive already fetched. Skipping."
        return 0
    end

    # If the archive doesn't exist we assume the unpacked archive
    # should not exist too.
    if local_path_exist?
        logger.trace "We fetch a new archive. Remove the old sources."
        FileUtils.rm_rf local_path if !$noop
    end

    # Create the directories parent dir.
    FileUtils.mkdir_p( File.dirname( local_path ) ) if !$noop

    # Download the archive
    logger.info"downloading #{archive_url}"
    if !$noop

        begin

            # We first open the archive. Will throw an exception if the url is invalid.
            open( archive_url ) do |file|

                begin

                    # Create the local file
                    open( archive_local_path, "wb" ) do |target|

                        # Copy
                        while c = file.getc
                            target.putc( c )
                        end

                    end

                rescue

                    # Clean up
                    File.unlink( archive_local_path ) if File.exist?( archive_local_path )
                    raise

                end

            end

        rescue StandardError => e

            msg = "Failed to download #{archive_url}: #{e.to_s}"
            logger.error( msg )
            raise StandardError, msg

        end

    end
    return 0
end

#fetching_supported? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/build-tool/vcs/archive.rb', line 63

def fetching_supported?
    true
end

#guess_top_level_directory ⇒ Object 



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# File 'lib/build-tool/vcs/archive.rb', line 173

def guess_top_level_directory
    return "<topdir>" if $noop

    # Find the command to list the archive content
    if archive_name =~ /(\.tgz|\.tar\.gz)$/
        cmd =  "gzip -dc #{archive_local_path} | tar tf -"
    elsif archive_name =~ /(\.txz|\.tar\.xz)$/
        cmd = "xz -dc #{archive_local_path} | tar tf -"
    elsif archive_name =~ /(\.tar\.bz2)$/
        cmd = "bzip2 -dc #{archive_local_path} | tar tf -"
    else
        raise NotImplementedError, "'#{archive_name}' has a unsupported format."
    end

    # Then check for a toplevel directory.
    topdir = nil
    self.class.execute( cmd ) do |line|
        rc = /^([^\/]*)\/?/.match( line )
        if topdir
            if topdir != rc[1]
                return false
            end
        else
            topdir = rc[1]
        end
    end

    return topdir
end

#name ⇒ Object

Attributes



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# File 'lib/build-tool/vcs/archive.rb', line 59

def name
    "archive"
end

#patches_supported? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/build-tool/vcs/archive.rb', line 67

def patches_supported?
    true
end

#prepare_for_fetch ⇒ Object 



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# File 'lib/build-tool/vcs/archive.rb', line 245

def prepare_for_fetch
    # If our server has an associated ssh-key, add it to the ssh-agent.
    return check_for_sshkey( config.repository.sshkey )
end

#rebase(verbose = false) ⇒ Object 



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# File 'lib/build-tool/vcs/archive.rb', line 203

def rebase( verbose = false )

    # Check if the archive is already downloaded
    if !File.exist? archive_local_path
        logger.debug "Archive not fetched. Skipping."
        return 0
    end

    if local_path_exist?
        return 0
    end

    # Check if there is a common top level dir
    # eg. my-package-0.4.7
    if guess_top_level_directory()
        strip_components = 1
    else
        strip_components = 0
    end

    # Get the command to unpack
    if archive_name =~ /(\.tgz|\.tar\.gz)$/
        cmd = "gunzip -dc #{archive_local_path} | tar --strip-components=#{strip_components} --extract --file=- --directory=#{local_path}"
    elsif archive_name =~ /(\.txz|\.tar\.xz)$/
        cmd = "xz -dc #{archive_local_path} | tar --strip-components=#{strip_components} --extract --file=- --directory=#{local_path}"
    elsif archive_name =~ /\.tar\.bz2$/
        cmd = "bzip2 -dc #{archive_local_path} | tar --strip-components=#{strip_components} --extract --file=- --directory=#{local_path}"
    else
        raise NotImplementedError, "'#{archive_name}' has unsupported format."
    end

    # Create the directory we want to use to checkout
    FileUtils.mkdir_p local_path if !$noop

    # Unpack
    if self.class.execute( cmd ) != 0
        raise StandardError, "Failed to unpack the archive: $?"
    end

    0
end