vim-patch:8.0.1781: file names in quickfix window are not shortened

Problem:    File names in quickfix window are not always shortened.
Solution:   Shorten the file name when opening the quickfix window. (Yegappan
            Lakshmanan, closes vim/vim#2851, closes vim/vim#2846)
https://github.com/vim/vim/commit/a796d46f29e3cc235cc981696d7ee80faccb5000

1 files changed, 27 insertions, 18 deletions

diff --git a/src/nvim/fileio.c b/src/nvim/fileio.c
index 8b650d0d5b..494b557379 100644
--- a/src/nvim/fileio.c
+++ b/src/nvim/fileio.c
@@ -4312,7 +4312,7 @@ static int make_bom(char_u *buf, char_u *name)
 }
 
 /*
- * Shorten filenames for all buffers.
+ * Shorten filename of a buffer.
  * When "force" is TRUE: Use full path from now on for files currently being
  * edited, both for file name and swap file name.  Try to shorten the file
  * names a bit, if safe to do so.
@@ -4320,29 +4320,38 @@ static int make_bom(char_u *buf, char_u *name)
  * For buffers that have buftype "nofile" or "scratch": never change the file
  * name.
  */
+void shorten_buf_fname(buf_T *buf, char_u *dirname, int force)
+{
+  char_u      *p;
+
+  if (buf->b_fname != NULL
+      && !bt_nofile(buf)
+      && !path_with_url((char *)buf->b_fname)
+      && (force
+          || buf->b_sfname == NULL
+          || path_is_absolute(buf->b_sfname))) {
+    xfree(buf->b_sfname);
+    buf->b_sfname = NULL;
+    p = path_shorten_fname(buf->b_ffname, dirname);
+    if (p != NULL) {
+      buf->b_sfname = vim_strsave(p);
+      buf->b_fname = buf->b_sfname;
+    }
+    if (p == NULL || buf->b_fname == NULL)
+      buf->b_fname = buf->b_ffname;
+  }
+}
+
+/*
+ * Shorten filenames for all buffers.
+ */
 void shorten_fnames(int force)
 {
   char_u dirname[MAXPATHL];
-  char_u      *p;
 
   os_dirname(dirname, MAXPATHL);
   FOR_ALL_BUFFERS(buf) {
-    if (buf->b_fname != NULL
-        && !bt_nofile(buf)
-        && !path_with_url((char *)buf->b_fname)
-        && (force
-            || buf->b_sfname == NULL
-            || path_is_absolute(buf->b_sfname))) {
-      xfree(buf->b_sfname);
-      buf->b_sfname = NULL;
-      p = path_shorten_fname(buf->b_ffname, dirname);
-      if (p != NULL) {
-        buf->b_sfname = vim_strsave(p);
-        buf->b_fname = buf->b_sfname;
-      }
-      if (p == NULL || buf->b_fname == NULL)
-        buf->b_fname = buf->b_ffname;
-    }
+      shorten_buf_fname(buf, dirname, force);
 
     /* Always make the swap file name a full path, a "nofile" buffer may
      * also have a swap file. */