Move from omf to fisher for fishshell

config/fish/functions/__fzf_complete_preview.fish

@@ -0,0 +1,29 @@
+function __fzf_complete_preview -d 'generate preview for completion widget.
+    argv[1] is the currently selected candidate in fzf
+    argv[2] is a string containing the rest of the output produced by `complete -Ccmd`
+    '
+
+    if test "$argv[2]" = "Redefine variable"
+        # show environment variables current value
+        set -l evar (echo $argv[1] | cut -d= -f1)
+        echo $argv[1]$$evar
+    else
+        echo $argv[1]
+    end
+
+    # list directories on preview
+    if test -d "$argv[1]"
+        eval $FZF_PREVIEW_DIR_CMD (string escape $argv[1])
+    end
+
+    # show ten lines of non-binary files preview
+    if test -f "$argv[1]"; and grep -qI . "$argv[1]"
+        eval $FZF_PREVIEW_FILE_CMD (string escape $argv[1])
+    end
+
+    # if fish knows about it, let it show info
+    type -q "$argv[1]" 2>/dev/null; and type -a "$argv[1]"
+
+    # show aditional data
+    echo $argv[2]
+end