parse-diff

expect = require 'expect.js' parse = require '../index' describe 'diff parser', -> it 'should parse null', -> expect(parse(null).length).to.be(0) it 'should parse empty string', -> expect(parse('').length).to.be(0) it 'should parse whitespace', -> expect(parse(' ').length).to.be(0) it 'should parse simple git-like diff', -> diff = """ diff --git a/file b/file index 123..456 789 --- a/file +++ b/file @@ -1,2 +1,2 @@ - line1 + line2 """ files = parse diff expect(files.length).to.be(1) file = files[0] expect(file.from).to.be('file') expect(file.to).to.be('file') expect(file.chunks.length).to.be(1) chunk = file.chunks[0] expect(chunk.content).to.be('@@ -1,2 +1,2 @@') expect(chunk.changes.length).to.be(2) expect(chunk.changes[0].content).to.be('- line1') expect(chunk.changes[1].content).to.be('+ line2') it 'should parse diff with new file mode line', -> diff = """ diff --git a/test b/test new file mode 100644 index 0000000..db81be4 --- /dev/null +++ b/test @@ -0,0 +1,2 @@ +line1 +line2 """ files = parse diff expect(files.length).to.be(1) file = files[0] expect(file.new).to.be.true expect(file.from).to.be('/dev/null') expect(file.to).to.be('test') expect(file.chunks[0].content).to.be('@@ -0,0 +1,2 @@') expect(file.chunks[0].changes.length).to.be(2) expect(file.chunks[0].changes[0].content).to.be('+line1') expect(file.chunks[0].changes[1].content).to.be('+line2') it 'should parse diff with deleted file mode line', -> diff = """ diff --git a/test b/test deleted file mode 100644 index db81be4..0000000 --- b/test +++ /dev/null @@ -1,2 +0,0 @@ -line1 -line2 """ files = parse diff expect(files.length).to.be(1) file = files[0] expect(file.deleted).to.be.true expect(file.from).to.be('test') expect(file.to).to.be('/dev/null') expect(file.chunks[0].content).to.be('@@ -1,2 +0,0 @@') expect(file.chunks[0].changes.length).to.be(2) expect(file.chunks[0].changes[0].content).to.be('-line1') expect(file.chunks[0].changes[1].content).to.be('-line2') it 'should parse diff with single line files', -> diff = """ diff --git a/file1 b/file1 deleted file mode 100644 index db81be4..0000000 --- b/file1 +++ /dev/null @@ -1 +0,0 @@ -line1 diff --git a/file2 b/file2 new file mode 100644 index 0000000..db81be4 --- /dev/null +++ b/file2 @@ -0,0 +1 @@ +line1 """ files = parse diff expect(files.length).to.be(2) file = files[0] expect(file.deleted).to.be.true expect(file.from).to.be('file1') expect(file.to).to.be('/dev/null') expect(file.chunks[0].content).to.be('@@ -1 +0,0 @@') expect(file.chunks[0].changes.length).to.be(1) expect(file.chunks[0].changes[0].content).to.be('-line1') expect(file.chunks[0].changes[0].type).to.be('del') file = files[1] expect(file.new).to.be.true expect(file.from).to.be('/dev/null') expect(file.to).to.be('file2') expect(file.chunks[0].content).to.be('@@ -0,0 +1 @@') expect(file.chunks[0].newLines).to.be(0) expect(file.chunks[0].changes.length).to.be(1) expect(file.chunks[0].changes[0].content).to.be('+line1') expect(file.chunks[0].changes[0].type).to.be('add') it 'should parse multiple files in diff', -> diff = """ diff --git a/file1 b/file1 index 123..456 789 --- a/file1 +++ b/file1 @@ -1,2 +1,2 @@ - line1 + line2 diff --git a/file2 b/file2 index 123..456 789 --- a/file2 +++ b/file2 @@ -1,3 +1,3 @@ - line1 + line2 """ files = parse diff expect(files.length).to.be(2) file = files[0] expect(file.from).to.be('file1') expect(file.to).to.be('file1') expect(file.chunks[0].content).to.be('@@ -1,2 +1,2 @@') expect(file.chunks[0].changes.length).to.be(2) expect(file.chunks[0].changes[0].content).to.be('- line1') expect(file.chunks[0].changes[1].content).to.be('+ line2') file = files[1] expect(file.from).to.be('file2') expect(file.to).to.be('file2') expect(file.chunks[0].content).to.be('@@ -1,3 +1,3 @@') expect(file.chunks[0].changes.length).to.be(2) expect(file.chunks[0].changes[0].content).to.be('- line1') expect(file.chunks[0].changes[1].content).to.be('+ line2') it 'should parse diff with EOF flag', -> diff = """ diff --git a/file1 b/file1 index 123..456 789 --- a/file1 +++ b/file1 @@ -1,2 +1,2 @@ - line1 + line2 \\ No newline at end of file """ files = parse diff expect(files.length).to.be(1) file = files[0] expect(file.from).to.be('file1') expect(file.to).to.be('file1') chunk = file.chunks[0] expect(chunk.content).to.be('@@ -1,2 +1,2 @@') expect(chunk.changes.length).to.be(3) expect(chunk.changes[0].content).to.be('- line1') expect(chunk.changes[1].content).to.be('+ line2') expect(chunk.changes[2].type).to.be('add') expect(chunk.changes[2].content).to.be('\\ No newline at end of file') it 'should parse gnu sample diff', -> diff = """ --- lao 2002-02-21 23:30:39.942229878 -0800 +++ tzu 2002-02-21 23:30:50.442260588 -0800 @@ -1,7 +1,6 @@ -The Way that can be told of is not the eternal Way; -The name that can be named is not the eternal name. The Nameless is the origin of Heaven and Earth; -The Named is the mother of all things. +The named is the mother of all things. + Therefore let there always be non-being, so we may see their subtlety, And let there always be being, @@ -9,3 +8,6 @@ The two are the same, But after they are produced, they have different names. +They both may be called deep and profound. +Deeper and more profound, +The door of all subtleties! """ files = parse diff expect(files.length).to.be(1) file = files[0] expect(file.from).to.be('lao') expect(file.to).to.be('tzu') expect(file.chunks.length).to.be(2) chunk0 = file.chunks[0] expect(chunk0.oldStart).to.be(1) expect(chunk0.oldLines).to.be(7) expect(chunk0.newStart).to.be(1) expect(chunk0.newLines).to.be(6) chunk1 = file.chunks[1] expect(chunk1.oldStart).to.be(9) expect(chunk1.oldLines).to.be(3) expect(chunk1.newStart).to.be(8) expect(chunk1.newLines).to.be(6) it 'should parse hg diff output', -> diff = """ diff -r 514fc757521e lib/parsers.coffee --- a/lib/parsers.coffee Thu Jul 09 00:56:36 2015 +0200 +++ b/lib/parsers.coffee Fri Jul 10 16:23:43 2015 +0200 @@ -43,6 +43,9 @@ files[file] = { added: added, deleted: deleted } files + diff: (out) -> + files = {} + module.exports = Parsers module.exports.version = (out) -> """ files = parse diff expect(files.length).to.be(1) file = files[0] expect(file.chunks[0].content).to.be('@@ -43,6 +43,9 @@') expect(file.from).to.be('lib/parsers.coffee') expect(file.to).to.be('lib/parsers.coffee') it 'should parse svn diff output', -> diff = """ Index: new.txt =================================================================== --- new.txt (revision 0) +++ new.txt (working copy) @@ -0,0 +1 @@ +test Index: text.txt =================================================================== --- text.txt (revision 6) +++ text.txt (working copy) @@ -1,7 +1,5 @@ -This part of the -document has stayed the -same from version to -version. It shouldn't +This is an important +notice! It shouldn't be shown if it doesn't change. Otherwise, that would not be helping to """ files = parse diff expect(files.length).to.be(2) file = files[0] expect(file.from).to.be('new.txt') expect(file.to).to.be('new.txt') expect(file.chunks[0].changes.length).to.be(1) it 'should parse file names for n new empty file', -> diff = """ diff --git a/newFile.txt b/newFile.txt new file mode 100644 index 0000000..e6a2e28 """ files = parse diff expect(files.length).to.be(1) file = files[0] expect(file.from).to.be('/dev/null') expect(file.to).to.be('newFile.txt') it 'should parse file names for a deleted file', -> diff = """ diff --git a/deletedFile.txt b/deletedFile.txt deleted file mode 100644 index e6a2e28..0000000 """ files = parse diff expect(files.length).to.be(1) file = files[0] expect(file.from).to.be('deletedFile.txt') expect(file.to).to.be('/dev/null') it 'should parse rename diff with space in path with no changes', -> diff = """ diff --git a/My Folder/File b/My Folder/a/File similarity index 100% rename from a/My Folder/File rename to My Folder/a/File """ files = parse diff expect(files.length).to.be(1) file = files[0] expect(file.from).to.be('My Folder/File') expect(file.to).to.be('My Folder/a/File') expect(file.chunks.length).to.be(0) it 'should parse rename diff with space in path with changes', -> diff = """ diff --git a/My Folder/File b/My Folder/a/File similarity index 100% rename from a/My Folder/File rename to My Folder/a/File @@ -1,2 +1,2 @@ - line1 + line2 """ files = parse diff expect(files.length).to.be(1) file = files[0] expect(file.from).to.be('My Folder/File') expect(file.to).to.be('My Folder/a/File') expect(file.chunks.length).to.be(1) chunk = file.chunks[0] expect(chunk.content).to.be('@@ -1,2 +1,2 @@') expect(chunk.changes.length).to.be(2) expect(chunk.changes[0].content).to.be('- line1') expect(chunk.changes[1].content).to.be('+ line2')