vim-patch:8.0.0308

Problem:    When using a symbolic link, the package path will not be inserted
            at the right position in 'runtimepath'. (Dugan Chen, Norio Takagi)
Solution:   Resolve symbolic links when finding the right position in
            'runtimepath'. (Hirohito Higashi)

2f9e575583

test/functional/legacy/packadd_spec.lua

@@ -83,6 +83,39 @@ describe('packadd', function()
         call assert_equal(new_rtp, &rtp)
       endfunc
 
+      func Test_packadd_symlink_dir()
+        if !has('unix')
+          return
+        endif
+        let top2_dir = s:topdir . '/Xdir2'
+        let real_dir = s:topdir . '/Xsym'
+        silent !ln -s real_dir top2_dir
+        let &rtp = top2_dir . ',' . top2_dir . '/after'
+        let &packpath = &rtp
+
+        let s:plugdir = top2_dir . '/pack/mine/opt/mytest'
+        call mkdir(s:plugdir . '/plugin', 'p')
+
+        exe 'split ' . s:plugdir . '/plugin/test.vim'
+        call setline(1, 'let g:plugin_works = 44')
+        wq
+        let g:plugin_works = 0
+
+        packadd mytest
+
+        " Must have been inserted in the middle, not at the end
+        call assert_true(&rtp =~ '/pack/mine/opt/mytest,')
+        call assert_equal(44, g:plugin_works)
+
+        " No change when doing it again.
+        let rtp_before = &rtp
+        packadd mytest
+        call assert_equal(rtp_before, &rtp)
+
+        set rtp&
+        let rtp = &rtp
+      endfunc
+
       func Test_packloadall()
         " plugin foo with an autoload directory
         let fooplugindir = &packpath . '/pack/mine/start/foo/plugin'
@@ -227,6 +260,11 @@ describe('packadd', function()
     expected_empty()
   end)
 
+  it('works with symlinks', function()
+    call('Test_packadd_symlink_dir')
+    expected_empty()
+  end)
+
   it('works with :packloadall', function()
     call('Test_packloadall')
     expected_empty()