Class: PVN::Seek::Seeker

Inherits:
Object
  • Object
show all
Includes:
Logue::Loggable
Defined in:
lib/pvn/seek/seeker.rb

Direct Known Subclasses

SeekerAdded, SeekerRemoved

Instance Method Summary collapse

Constructor Details

#initialize(path, pattern, revision, entries) ⇒ Seeker

Returns a new instance of Seeker.



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# File 'lib/pvn/seek/seeker.rb', line 12

def initialize path, pattern, revision, entries
  @path = path
  @pattern = pattern
  @revision = revision
  @entries = entries
end

Instance Method Details

#cat(revision) ⇒ Object 



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# File 'lib/pvn/seek/seeker.rb', line 19

def cat revision
  ex = SVNx::CatExec.new path: @path, revision: revision, use_cache: true
  ex.output
end

#diff_match(ifmatch, ifnomatch, prevmatch, currmatch) ⇒ Object 



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# File 'lib/pvn/seek/seeker.rb', line 68

def diff_match ifmatch, ifnomatch, prevmatch, currmatch
  difflines = ifmatch.diff ifnomatch
  return if difflines.empty?
  info "difflines: #{difflines}".color("cc33ff")
  Match.new difflines.collect { |x| x[0] }, ifmatch.contents, prevmatch.previous_entry, currmatch.current_entry
end

#full_diff?(ifmatch, ifnomatch) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/pvn/seek/seeker.rb', line 58

def full_diff? ifmatch, ifnomatch
  return ifmatch if !ifnomatch
end

#match(idx) ⇒ Object 



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# File 'lib/pvn/seek/seeker.rb', line 34

def match idx
  entry = @entries[idx]
  preventry = idx > 0 ? @entries[idx - 1] : nil
  matches? preventry, entry
end

#matches?(previous_entry, current_entry) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/pvn/seek/seeker.rb', line 24

def matches? previous_entry, current_entry
  contents = cat current_entry.revision
  contents.collect! { |x| x.chomp! }
  matchlnums = (0 ... contents.length).select do |lnum|
    contents[lnum].index @pattern
  end
  return if matchlnums.empty?
  Match.new matchlnums, contents, previous_entry, current_entry
end

#process_match(ifmatch, ifnomatch, prevmatch, currmatch) ⇒ Object 



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# File 'lib/pvn/seek/seeker.rb', line 62

def process_match ifmatch, ifnomatch, prevmatch, currmatch
  return unless ifmatch
  return ifmatch if full_diff? ifmatch, ifnomatch
  diff_match ifmatch, ifnomatch, prevmatch, currmatch
end

#seek ⇒ Object 



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# File 'lib/pvn/seek/seeker.rb', line 40

def seek
  latest_match = match 0
  
  (1 ... @entries.size).each do |idx|
    entry = @entries[idx]
    current_match = match idx

    if matchref = process_match(latest_match, current_match)
      return Match.new matchref.lnums, matchref.contents, @entries[idx - 1], entry
    end
    
    if current_match
      latest_match = current_match
    end
  end
  nil
end