Module: Diggit::DevelopersActivity::ActivityExtractor::Renames

Extended by:
Renames
Included in:
Renames
Defined in:
lib/diggit/developers_activity/activity_extractor/renames.rb

Overview

Stores file renaming operations. Allows to retrieve the initial path of a file after having performed a diff on the renaming commits.

Since:

  • 0.0.1

Instance Method Summary collapse

Instance Method Details

#add(src_path, dest_path) ⇒ Object

Adds a rename operation to the list, if the rename does not create a cycle

Returns:

  • true if the rename was added, false otherwise

Since:

  • 0.0.1



24
25
26
27
28
29
30
31
32
33
34
 
# File 'lib/diggit/developers_activity/activity_extractor/renames.rb', line 24

def add(src_path, dest_path)
	# check for cycle, ie, if there is a rename path from dest to src
	path = dest_path
	while hash.key? path
		path = hash[path]
		return false if path == src_path
	end

	hash[src_path] = dest_path
	true
end

#apply(path) ⇒ Object

Apply all renaming operations found on the given path

Returns:

  • the path of the file at the S0 snapshot

Since:

  • 0.0.1



39
40
41
42
 
# File 'lib/diggit/developers_activity/activity_extractor/renames.rb', line 39

def apply(path)
	path = hash[path] while hash.key? path
	path
end

#clear ⇒ Object

Since:

  • 0.0.1



17
18
19
 
# File 'lib/diggit/developers_activity/activity_extractor/renames.rb', line 17

def clear
	@renames_hash = {}
end

#extract_commit_renames(commit, walk_backwards = true) ⇒ Object

Since:

  • 0.0.1



44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
 
# File 'lib/diggit/developers_activity/activity_extractor/renames.rb', line 44

def extract_commit_renames(commit, walk_backwards = true)
	commit.parents.each do |parent|
		diff = parent.diff(commit, DIFF_OPTIONS)
		diff.find_similar!(DIFF_RENAME_OPTIONS)
		diff.each do |patch|
			next unless patch.delta.renamed?
			if walk_backwards
				new_path = patch.delta.new_file[:path]
				renamed_path = patch.delta.old_file[:path]
			else
				renamed_path = patch.delta.new_file[:path]
				new_path = patch.delta.old_file[:path]
			end
			add(renamed_path, new_path)
		end
	end
end

#extract_renames(walker, walk_backwards = true) ⇒ Object

Since:

  • 0.0.1



62
63
64
 
# File 'lib/diggit/developers_activity/activity_extractor/renames.rb', line 62

def extract_renames(walker, walk_backwards = true)
	walker.each { |commit| extract_commit_renames(commit, walk_backwards) }
end

#hash ⇒ Object

Since:

  • 0.0.1



13
14
15
 
# File 'lib/diggit/developers_activity/activity_extractor/renames.rb', line 13

def hash
	@renames_hash ||= {}
end