Python IndexFile.diff方法代码示例

# 需要导入模块: from git import IndexFile [as 别名]
# 或者: from git.IndexFile import diff [as 别名]
    def test_index_file_diffing(self, rw_repo):
        # default Index instance points to our index
        index = IndexFile(rw_repo)
        assert index.path is not None
        assert len(index.entries)

        # write the file back
        index.write()

        # could sha it, or check stats

        # test diff
        # resetting the head will leave the index in a different state, and the
        # diff will yield a few changes
        cur_head_commit = rw_repo.head.reference.commit
        rw_repo.head.reset('HEAD~6', index=True, working_tree=False)

        # diff against same index is 0
        diff = index.diff()
        self.assertEqual(len(diff), 0)

        # against HEAD as string, must be the same as it matches index
        diff = index.diff('HEAD')
        self.assertEqual(len(diff), 0)

        # against previous head, there must be a difference
        diff = index.diff(cur_head_commit)
        assert len(diff)

        # we reverse the result
        adiff = index.diff(str(cur_head_commit), R=True)
        odiff = index.diff(cur_head_commit, R=False)    # now its not reversed anymore
        assert adiff != odiff
        self.assertEqual(odiff, diff)                    # both unreversed diffs against HEAD

        # against working copy - its still at cur_commit
        wdiff = index.diff(None)
        assert wdiff != adiff
        assert wdiff != odiff

        # against something unusual
        self.failUnlessRaises(ValueError, index.diff, int)

        # adjust the index to match an old revision
        cur_branch = rw_repo.active_branch
        cur_commit = cur_branch.commit
        rev_head_parent = 'HEAD~1'
        assert index.reset(rev_head_parent) is index

        self.assertEqual(cur_branch, rw_repo.active_branch)
        self.assertEqual(cur_commit, rw_repo.head.commit)

        # there must be differences towards the working tree which is in the 'future'
        assert index.diff(None)

        # reset the working copy as well to current head,to pull 'back' as well
        new_data = b"will be reverted"
        file_path = osp.join(rw_repo.working_tree_dir, "CHANGES")
        with open(file_path, "wb") as fp:
            fp.write(new_data)
        index.reset(rev_head_parent, working_tree=True)
        assert not index.diff(None)
        self.assertEqual(cur_branch, rw_repo.active_branch)
        self.assertEqual(cur_commit, rw_repo.head.commit)
        with open(file_path, 'rb') as fp:
            assert fp.read() != new_data

        # test full checkout
        test_file = osp.join(rw_repo.working_tree_dir, "CHANGES")
        with open(test_file, 'ab') as fd:
            fd.write(b"some data")
        rval = index.checkout(None, force=True, fprogress=self._fprogress)
        assert 'CHANGES' in list(rval)
        self._assert_fprogress([None])
        assert osp.isfile(test_file)

        os.remove(test_file)
        rval = index.checkout(None, force=False, fprogress=self._fprogress)
        assert 'CHANGES' in list(rval)
        self._assert_fprogress([None])
        assert osp.isfile(test_file)

        # individual file
        os.remove(test_file)
        rval = index.checkout(test_file, fprogress=self._fprogress)
        self.assertEqual(list(rval)[0], 'CHANGES')
        self._assert_fprogress([test_file])
        assert osp.exists(test_file)

        # checking out non-existing file throws
        self.failUnlessRaises(CheckoutError, index.checkout, "doesnt_exist_ever.txt.that")
        self.failUnlessRaises(CheckoutError, index.checkout, paths=["doesnt/exist"])

        # checkout file with modifications
        append_data = b"hello"
        with open(test_file, "ab") as fp:
            fp.write(append_data)
        try:
            index.checkout(test_file)
        except CheckoutError as e:
#.........这里部分代码省略.........