patch 9.1.0465: missing filecopy() function
Problem: missing filecopy() function
Solution: implement filecopy() Vim script function
(Shougo Matsushita)
closes: #12346
Co-authored-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Shougo Matsushita <Shougo.Matsu@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/testdir/test_filecopy.vim b/src/testdir/test_filecopy.vim
new file mode 100644
index 0000000..b526dce
--- /dev/null
+++ b/src/testdir/test_filecopy.vim
@@ -0,0 +1,72 @@
+" Test filecopy()
+
+source check.vim
+source shared.vim
+
+func Test_copy_file_to_file()
+ call writefile(['foo'], 'Xcopy1')
+
+ call assert_true(filecopy('Xcopy1', 'Xcopy2'))
+
+ call assert_equal(['foo'], readfile('Xcopy2'))
+
+ " When the destination file already exists, it should not be overwritten.
+ call writefile(['foo'], 'Xcopy1')
+ call writefile(['bar'], 'Xcopy2', 'D')
+ call assert_false(filecopy('Xcopy1', 'Xcopy2'))
+ call assert_equal(['bar'], readfile('Xcopy2'))
+
+ call delete('Xcopy2')
+ call delete('Xcopy1')
+endfunc
+
+func Test_copy_symbolic_link()
+ CheckUnix
+
+ call writefile(['text'], 'Xtestfile', 'D')
+ silent !ln -s -f Xtestfile Xtestlink
+
+ call assert_true(filecopy('Xtestlink', 'Xtestlink2'))
+ call assert_equal('link', getftype('Xtestlink2'))
+ call assert_equal(['text'], readfile('Xtestlink2'))
+
+ " When the destination file already exists, it should not be overwritten.
+ call assert_false(filecopy('Xtestlink', 'Xtestlink2'))
+
+ call delete('Xtestlink2')
+ call delete('Xtestlink')
+ call delete('Xtestfile')
+endfunc
+
+func Test_copy_dir_to_dir()
+ call mkdir('Xcopydir1')
+ call writefile(['foo'], 'Xcopydir1/Xfilecopy')
+ call mkdir('Xcopydir2')
+
+ " Directory copy is not supported
+ call assert_false(filecopy('Xcopydir1', 'Xcopydir2'))
+
+ call delete('Xcopydir2', 'rf')
+ call delete('Xcopydir1', 'rf')
+endfunc
+
+func Test_copy_fails()
+ CheckUnix
+
+ call writefile(['foo'], 'Xfilecopy', 'D')
+
+ " Can't copy into a non-existing directory.
+ call assert_false(filecopy('Xfilecopy', 'Xdoesnotexist/Xfilecopy'))
+
+ " Can't copy a non-existing file.
+ call assert_false(filecopy('Xdoesnotexist', 'Xfilecopy2'))
+ call assert_equal('', glob('Xfilecopy2'))
+
+ " Can't copy to en empty file name.
+ call assert_false(filecopy('Xfilecopy', ''))
+
+ call assert_fails('call filecopy("Xfilecopy", [])', 'E1174:')
+ call assert_fails('call filecopy(0z, "Xfilecopy")', 'E1174:')
+endfunc
+
+" vim: shiftwidth=2 sts=2 expandtab