Class: Mixlib::Archive::Tar
- Inherits:
-
Object
- Object
- Mixlib::Archive::Tar
- Defined in:
- lib/mixlib/archive/tar.rb
Constant Summary collapse
- TAR_LONGLINK =
"././@LongLink".freeze
Instance Attribute Summary collapse
-
#archive ⇒ Object
readonly
Returns the value of attribute archive.
-
#options ⇒ Object
readonly
Returns the value of attribute options.
Instance Method Summary collapse
-
#create(files, gzip: false) ⇒ Object
Creates an archive with the given set of
files
. -
#extract(destination, perms: true, ignore: []) ⇒ Object
Extracts the archive to the given
destination
. -
#initialize(archive, options = {}) ⇒ Tar
constructor
A new instance of Tar.
Constructor Details
#initialize(archive, options = {}) ⇒ Tar
Returns a new instance of Tar.
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# File 'lib/mixlib/archive/tar.rb', line 13 def initialize(archive, = {}) @archive = archive @options = end |
Instance Attribute Details
#archive ⇒ Object (readonly)
Returns the value of attribute archive.
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# File 'lib/mixlib/archive/tar.rb', line 11 def archive @archive end |
#options ⇒ Object (readonly)
Returns the value of attribute options.
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# File 'lib/mixlib/archive/tar.rb', line 10 def @options end |
Instance Method Details
#create(files, gzip: false) ⇒ Object
Creates an archive with the given set of files
Parameters
- gzip<Boolean>
-
should the archive be gzipped?
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# File 'lib/mixlib/archive/tar.rb', line 72 def create(files, gzip: false) tgt_dir = File.dirname(archive) target = Tempfile.new(File.basename(archive), tgt_dir) target.binmode Gem::Package::TarWriter.new(target) do |tar| files.each do |fn| mode = File.stat(fn).mode if File.symlink?(fn) target = File.readlink(fn) tar.add_symlink(fn, target, mode) elsif File.directory?(fn) tar.mkdir(fn, mode) elsif File.file?(fn) file = File.open(fn, "rb") tar.add_file(fn, mode) do |io| io.write(file.read) end file.close end end end target.close if gzip Zlib::GzipWriter.open(archive, Zlib::BEST_COMPRESSION) do |gz| gz.mtime = File.mtime(target.path) gz.orig_name = File.basename(archive) File.open(target.path) do |file| while (chunk = file.read(16 * 1024)) gz.write(chunk) end end end else FileUtils.mv(target.path, archive) end ensure target.close unless target.closed? end |
#extract(destination, perms: true, ignore: []) ⇒ Object
Extracts the archive to the given destination
Parameters
- perms<Boolean>
-
should the extracter use permissions from the archive.
- ignore
-
an array of matches of file paths to ignore
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# File 'lib/mixlib/archive/tar.rb', line 23 def extract(destination, perms: true, ignore: []) # (http://stackoverflow.com/a/31310593/506908) ignore_re = Regexp.union(ignore) reader do |tar| dest = nil tar.each do |entry| if entry.full_name == TAR_LONGLINK dest = File.join(destination, entry.read.strip) next end if entry.full_name =~ ignore_re Mixlib::Archive::Log.warn "ignoring entry #{entry.full_name}" next end dest ||= File.(File.join(destination, entry.full_name)) parent = File.dirname(dest) FileUtils.mkdir_p(parent) if entry.directory? || (entry.header.typeflag == "" && entry.full_name.end_with?("/")) File.delete(dest) if File.file?(dest) if perms FileUtils.mkdir_p(dest, mode: entry.header.mode, verbose: false) else FileUtils.mkdir_p(dest, verbose: false) end elsif entry.file? || (entry.header.typeflag == "" && !entry.full_name.end_with?("/")) FileUtils.rm_rf(dest) if File.directory?(dest) File.open(dest, "wb") do |f| f.print(entry.read) end FileUtils.chmod(entry.header.mode, dest, verbose: false) if perms elsif entry.header.typeflag == "2" # handle symlink File.symlink(entry.header.linkname, dest) else Mixlib::Archive::Log.warn "unknown tar entry: #{entry.full_name} type: #{entry.header.typeflag}" end dest = nil end end end |