80 lines
1.9 KiB
Ruby
80 lines
1.9 KiB
Ruby
module Gitlab
|
|
module Diff
|
|
class Parser
|
|
include Enumerable
|
|
|
|
def parse(lines)
|
|
@lines = lines
|
|
lines_obj = []
|
|
line_obj_index = 0
|
|
line_old = 1
|
|
line_new = 1
|
|
type = nil
|
|
|
|
@lines.each do |line|
|
|
next if filename?(line)
|
|
|
|
full_line = line.gsub(/\n/, '')
|
|
|
|
if line.match(/^@@ -/)
|
|
type = "match"
|
|
|
|
line_old = line.match(/\-[0-9]*/)[0].to_i.abs rescue 0
|
|
line_new = line.match(/\+[0-9]*/)[0].to_i.abs rescue 0
|
|
|
|
next if line_old <= 1 && line_new <= 1 #top of file
|
|
lines_obj << Gitlab::Diff::Line.new(full_line, type, line_obj_index, line_old, line_new)
|
|
line_obj_index += 1
|
|
next
|
|
elsif line[0] == '\\'
|
|
type = 'nonewline'
|
|
lines_obj << Gitlab::Diff::Line.new(full_line, type, line_obj_index, line_old, line_new)
|
|
line_obj_index += 1
|
|
else
|
|
type = identification_type(line)
|
|
lines_obj << Gitlab::Diff::Line.new(full_line, type, line_obj_index, line_old, line_new)
|
|
line_obj_index += 1
|
|
end
|
|
|
|
|
|
case line[0]
|
|
when "+"
|
|
line_new += 1
|
|
when "-"
|
|
line_old += 1
|
|
when "\\"
|
|
# No increment
|
|
else
|
|
line_new += 1
|
|
line_old += 1
|
|
end
|
|
end
|
|
|
|
lines_obj
|
|
end
|
|
|
|
def empty?
|
|
@lines.empty?
|
|
end
|
|
|
|
private
|
|
|
|
def filename?(line)
|
|
line.start_with?( '--- /dev/null', '+++ /dev/null', '--- a', '+++ b',
|
|
'+++ a', # The line will start with `+++ a` in the reverse diff of an orphan commit
|
|
'--- /tmp/diffy', '+++ /tmp/diffy')
|
|
end
|
|
|
|
def identification_type(line)
|
|
case line[0]
|
|
when "+"
|
|
"new"
|
|
when "-"
|
|
"old"
|
|
else
|
|
nil
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|