Class: Rant::FileList

Inherits:
Object show all
Includes:
Enumerable
Defined in:
lib/rant.rb,
lib/rant/import/filelist/std.rb,
lib/rant/import/filelist/core.rb,
lib/rant/import/filelist/more.rb,
lib/rant/import/filelist/inspect.rb

Direct Known Subclasses

RacFileList

Constant Summary collapse

ESC_SEPARATOR = 
Regexp.escape(File::SEPARATOR)
ESC_ALT_SEPARATOR = 
File::ALT_SEPARATOR ?
Regexp.escape(File::ALT_SEPARATOR) : nil
FN_DOTFILE_RX_ =

Dir.glob of Ruby releases before 1.8.2 returned dotfiles even if File::FNM_DOTMATCH was not set.

ESC_ALT_SEPARATOR ?
/(^|(#{ESC_SEPARATOR}|#{ESC_ALT_SEPARATOR})+)\..*
    ((#{ESC_SEPARATOR}|#{ESC_ALT_SEPARATOR})+|$)/x :
/(^|#{ESC_SEPARATOR}+)\..* (#{ESC_SEPARATOR}+|$)/x
@@__send_private__ = 
Object.method_defined?(:fcall) ? :fcall : :funcall

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Enumerable

#inject, #select_map

Constructor Details

#initialize(store = []) ⇒ FileList

Returns a new instance of FileList.



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# File 'lib/rant/import/filelist/core.rb', line 41

def initialize(store = [])
    @pending = false
    @def_glob_dotfiles = true
    @items = store
    @ignore_rx = nil
    @keep = {}
    @actions = []
end

Class Method Details

.[](*patterns) ⇒ Object 



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# File 'lib/rant/import/filelist/core.rb', line 28

def [](*patterns)
    new.hide_dotfiles.include(*patterns)
end

.glob(*patterns) ⇒ Object 



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# File 'lib/rant/import/filelist/core.rb', line 31

def glob(*patterns)
    fl = new.hide_dotfiles.ignore(".", "..").include(*patterns)
    if block_given? then yield fl else fl end
end

.glob_all(*patterns) ⇒ Object 



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# File 'lib/rant/import/filelist/core.rb', line 35

def glob_all(*patterns)
    fl = new.ignore(".", "..").include(*patterns)
    if block_given? then yield fl else fl end
end

Instance Method Details

#+(other) ⇒ Object 



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# File 'lib/rant/import/filelist/core.rb', line 122

def +(other)
    if other.respond_to? :to_rant_filelist
        c = other.to_rant_filelist.dup
        c.actions.concat(@actions)
        c.items.concat(@items)
        c.pending = !c.actions.empty?
        c
    elsif other.respond_to? :to_ary
        c = dup
        c.actions <<
            [:apply_ary_method_1, :concat, other.to_ary.dup]
        c.pending = true
        c
    else
        raise TypeError,
            "cannot add #{other.class} to Rant::FileList"
    end
end

#<<(file) ⇒ Object

Use this method to append file to this list. file will stay in this list even if it matches an exclude or ignore pattern.

Returns self.



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# File 'lib/rant/import/filelist/core.rb', line 145

def <<(file)
    @actions << [:apply_ary_method_1, :push, file]
    @keep[file] = true
    @pending = true
    self
end

#apply_exclude_path(pattern) ⇒ Object 



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# File 'lib/rant/import/filelist/core.rb', line 346

def apply_exclude_path(pattern)
    flags = File::FNM_DOTMATCH|File::FNM_PATHNAME
    @items.reject! { |elem|
        File.fnmatch?(pattern, elem, flags) && !@keep[elem]
    }
end

#arglist ⇒ Object Also known as: to_s

Get a string with all entries. This is very usefull if you invoke a shell:

files # => ["foo/bar", "with space"]
sh "rdoc #{files.arglist}"

will result on windows:

rdoc foo\bar "with space"

on other systems:

rdoc foo/bar with\ space



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# File 'lib/rant/import/filelist/core.rb', line 385

def arglist
    Rant::Sys.sp to_ary
end

#concat(ary) ⇒ Object

Append the entries of ary (an array like object) to this list.



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# File 'lib/rant/import/filelist/core.rb', line 164

def concat(ary)
    if @pending
        ary = ary.to_ary.dup
        @actions << [:apply_ary_method_1, :concat, ary]
    else
        ix = ignore_rx and ary = ary.to_ary.reject { |f| f =~ ix }
        @items.concat(ary)
    end
    self
end

#copy ⇒ Object 



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# File 'lib/rant/import/filelist/core.rb', line 59

def copy
    c = _object_dup
    c.items = @items.map { |entry| entry.dup }
    c.actions = @actions.dup
    c.ignore_rx = @ignore_rx.dup if @ignore_rx
    # alternative approach: copy & freeze "keep" entries on
    # inclusion in the keep hash
    h_keep = {}
    @keep.each_key { |entry| h_keep[entry] = true }
    c.instance_variable_set(:@keep, h_keep)
    c
end

#dirs ⇒ Object

Get a new filelist containing only the existing directories from this filelist.



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# File 'lib/rant/import/filelist/std.rb', line 60

def dirs
    select { |entry| test ?d, entry }
end

#dup ⇒ Object 



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# File 'lib/rant/import/filelist/core.rb', line 51

def dup
    c = _object_dup
    c.items = @items.dup
    c.actions = @actions.dup
    c.ignore_rx = @ignore_rx.dup if @ignore_rx
    c.instance_variable_set(:@keep, @keep.dup)
    c
end

#each(&block) ⇒ Object 



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# File 'lib/rant/import/filelist/core.rb', line 108

def each(&block)
    resolve if @pending
    @items.each(&block)
    self
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rant/import/filelist/core.rb', line 180

def empty?
    resolve if @pending
    @items.empty?
end

#exclude(*patterns) ⇒ Object

Exclude all entries matching one of patterns from this filelist.

Note: Only applies to entries previousely included.



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# File 'lib/rant/import/filelist/core.rb', line 279

def exclude(*patterns)
    patterns.each { |pat|
        if Regexp === pat
            @actions << [:apply_exclude_rx, pat]
        else
            @actions << [:apply_exclude, pat]
        end
    }
    @pending = true
    self
end

#exclude_name(*names) ⇒ Object Also known as: shun 



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# File 'lib/rant/import/filelist/core.rb', line 318

def exclude_name(*names)
    names.each { |name|
        @actions << [:apply_exclude_rx, mk_all_rx(name)]
    }
    @pending = true
    self
end

#exclude_path(*patterns) ⇒ Object 



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# File 'lib/rant/import/filelist/core.rb', line 339

def exclude_path(*patterns)
    patterns.each { |pat|
        @actions << [:apply_exclude_path, pat]
    }
    @pending = true
    self
end

#ext(ext_str) ⇒ Object 



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# File 'lib/rant/import/filelist/core.rb', line 374

def ext(ext_str)
    sub_ext(ext_str)
end

#files ⇒ Object

Get a new filelist containing only the existing files from this filelist.



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# File 'lib/rant/import/filelist/std.rb', line 55

def files
    select { |entry| test ?f, entry }
end

#glob_all(*patterns) ⇒ Object 



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# File 'lib/rant/import/filelist/core.rb', line 242

def glob_all(*patterns)
    patterns.flatten.each { |pat|
        @actions << [:apply_glob_all, pat]
    }
    @pending = true
    self
end

#glob_dotfiles ⇒ Object

Has the same effect as glob_dotfiles = true.

Returns self.

Currently for Rant internal use only. Might go in future releases.



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# File 'lib/rant/import/filelist/core.rb', line 97

def glob_dotfiles
    @def_glob_dotfiles = true
    self
end

#glob_dotfiles=(flag) ⇒ Object

Currently for Rant internal use only. Might go in future releases.



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# File 'lib/rant/import/filelist/core.rb', line 78

def glob_dotfiles=(flag)
    @def_glob_dotfiles = flag ? true : false
end

#glob_dotfiles? ⇒ Boolean

Currently for Rant internal use only. Might go in future releases.

Returns:

  • (Boolean) 


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# File 'lib/rant/import/filelist/core.rb', line 73

def glob_dotfiles?
    @def_glob_dotfiles
end

#glob_unix(*patterns) ⇒ Object

Unix style glob: hide files starting with a dot



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# File 'lib/rant/import/filelist/core.rb', line 235

def glob_unix(*patterns)
    patterns.flatten.each { |pat|
        @actions << [:apply_glob_unix, pat]
    }
    @pending = true
    self
end

#hide_dotfiles ⇒ Object

Has the same effect as glob_dotfiles = false.

Returns self.

Currently for Rant internal use only. Might go in future releases.



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# File 'lib/rant/import/filelist/core.rb', line 87

def hide_dotfiles
    @def_glob_dotfiles = false
    self
end

#ignore(*patterns) ⇒ Object 



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# File 'lib/rant/import/filelist/core.rb', line 290

def ignore(*patterns)
    patterns.each { |pat|
        add_ignore_rx(Regexp === pat ? pat : mk_all_rx(pat))
    }
    @pending = true
    self
end

#include(*pats) ⇒ Object Also known as: glob

Include entries matching one of patterns in this filelist.



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# File 'lib/rant/import/filelist/core.rb', line 230

def include(*pats)
    @def_glob_dotfiles ? glob_all(*pats) : glob_unix(*pats)
end

#inspect ⇒ Object

Note that the default Object#inspect implementation is available as object_inspect.



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# File 'lib/rant/import/filelist/inspect.rb', line 10

def inspect
    # what's the right encoding for object_id ?
    s = "#<#{self.class}:0x#{"%x" % object_id} "
    s << "#{@actions.size} actions, #{@items.size} entries"
    if @ignore_rx
        is = @ignore_rx.inspect.gsub(/\n|\t/, ' ')
        s << ", ignore#{is.squeeze ' '}"
    end
    if @glob_flags != 0
        s << ", flags:#@glob_flags"
    end
    s << ">"
end

#join(sep = ' ') ⇒ Object 



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# File 'lib/rant/import/filelist/core.rb', line 184

def join(sep = ' ')
    resolve if @pending
    @items.join(sep)
end

#keep(entry) ⇒ Object

Add entry to this filelist. Position of entry in this list is undefined. More efficient than #<<. entry will stay in this list even if it matches an exclude or ignore pattern.

Returns self.



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# File 'lib/rant/import/filelist/core.rb', line 157

def keep(entry)
    @keep[entry] = true
    @items << entry
    self
end

#map(&block) ⇒ Object Also known as: collect 



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# File 'lib/rant/import/filelist/core.rb', line 364

def map(&block)
    d = dup
    d.actions << [:apply_ary_method, :map!, block]
    d.pending = true
    d
end

#map!(&block) ⇒ Object

Same as #map! but evaluation is delayed until the next read access (e.g. by calling #each). Always returns self.



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# File 'lib/rant/import/filelist/core.rb', line 406

def map!(&block)
    @actions << [:apply_ary_method, :map!, block]
    @pending = true
    self
end

#no_dir(name = nil) ⇒ Object

Remove all entries which contain a directory with the given name. If no argument or nil given, remove all directories.

Example:

file_list.no_dir "CVS"

would remove the following entries from file_list:

CVS/
src/CVS/lib.c
CVS/foo/bar/



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# File 'lib/rant/import/filelist/std.rb', line 26

def no_dir(name = nil)
    @actions << [:apply_no_dir, name]
    @pending = true
    self
end

#no_file(name) ⇒ Object

Remove all files which have the given name.



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# File 'lib/rant/import/filelist/more.rb', line 9

def no_file(name)
           @actions << [:apply_ary_method, :reject!,
               lambda { |entry|
                   entry == name && !@keep[entry] && test(?f, entry)
               }]
    @pending = true
    self
end

#no_prefix(prefix) ⇒ Object

Remove all entries which contain an element with the given prefix.



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# File 'lib/rant/import/filelist/more.rb', line 40

def no_prefix(prefix)
    @actions << [:no_prefix, prefix]
    @pending = true
    self
end

#no_suffix(suffix) ⇒ Object

Remove all entries which contain an element with the given suffix.



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# File 'lib/rant/import/filelist/more.rb', line 20

def no_suffix(suffix)
    @actions << [:no_suffix, suffix]
    @pending = true
    self
end

#object_inspect ⇒ Object 



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# File 'lib/rant/import/filelist/core.rb', line 389

def inspect
    # what's the right encoding for object_id ?
    s = "#<#{self.class}:0x#{"%x" % object_id} "
    s << "#{@actions.size} actions, #{@items.size} entries"
    if @ignore_rx
        is = @ignore_rx.inspect.gsub(/\n|\t/, ' ')
        s << ", ignore#{is.squeeze ' '}"
    end
    if @glob_flags != 0
        s << ", flags:#@glob_flags"
    end
    s << ">"
end

#pop ⇒ Object 



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# File 'lib/rant/import/filelist/core.rb', line 188

def pop
    resolve if @pending
    @items.pop
end

#push(entry) ⇒ Object 



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# File 'lib/rant/import/filelist/core.rb', line 192

def push(entry)
    resolve if @pending
    @items.push(entry) if entry !~ ignore_rx
    self
end

#reject!(&block) ⇒ Object 



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# File 'lib/rant/import/filelist/core.rb', line 411

def reject!(&block)
    @actions << [:apply_ary_method, :reject!, block]
    @pending = true
    self
end

#resolve ⇒ Object

Force evaluation of all patterns.



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# File 'lib/rant/import/filelist/core.rb', line 219

def resolve
    @pending = false
    @actions.each{ |action| self.__send__(@@__send_private__, *action) }.clear
    ix = ignore_rx
    if ix
        @items.reject! { |f| f =~ ix && !@keep[f] }
    end
    self
end

#select(&block) ⇒ Object Also known as: find_all 



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# File 'lib/rant/import/filelist/core.rb', line 353

def select(&block)
    d = dup
    d.actions << [:apply_select, block]
    d.pending = true
    d
end

#shift ⇒ Object 



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# File 'lib/rant/import/filelist/core.rb', line 197

def shift
    resolve if @pending
    @items.shift
end

#size ⇒ Object Also known as: length

Number of entries in this filelist.



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# File 'lib/rant/import/filelist/core.rb', line 175

def size
    resolve if @pending
    @items.size
end

#sort! ⇒ Object

Same as #sort! but evaluation is delayed until the next read access (e.g. by calling #each). Always returns self.



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# File 'lib/rant/import/filelist/core.rb', line 399

def sort!
    @actions << [:apply_ary_method, :sort!]
    @pending = true
    self
end

#sub_ext(ext, new_ext = nil) ⇒ Object 



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# File 'lib/rant/import/filelist/core.rb', line 371

def sub_ext(ext, new_ext=nil)
    map { |f| f._rant_sub_ext ext, new_ext }
end

#to_ary ⇒ Object Also known as: to_a, entries 



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# File 'lib/rant/import/filelist/core.rb', line 113

def to_ary
    resolve if @pending
    @items
end

#to_rant_filelist ⇒ Object 



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# File 'lib/rant/import/filelist/core.rb', line 119

def to_rant_filelist
    self
end

#uniq! ⇒ Object

Same as #uniq! but evaluation is delayed until the next read access (e.g. by calling #each). Always returns self.



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# File 'lib/rant/import/filelist/core.rb', line 392

def uniq!
    @actions << [:apply_ary_method, :uniq!]
    @pending = true
    self
end

#unshift(entry) ⇒ Object 



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# File 'lib/rant/import/filelist/core.rb', line 201

def unshift(entry)
    resolve if @pending
    @items.unshift(entry) if entry !~ ignore_rx
    self
end