bash: various tweaks

- new include helper for checking if arg is a regular and readable
  file, then sourcing it
- set VISUAL editor
- fix prompt to show an additional character when abbreviated folder’s
  name starts with a dot

1 files changed, 7 insertions, 2 deletions

diff --git a/.bash_profile b/.bash_profile
index d5f7cc9..f41056d 100644
--- a/.bash_profile
+++ b/.bash_profile
@@ -1,2 +1,7 @@
-[[ -f ~/.profile ]] && . ~/.profile
-[[ -f ~/.bashrc ]] && . ~/.bashrc
+include () {
+    [[ -f "$1" && -r "$1" ]] && source "$1"
+}
+
+include ~/.profile
+include ~/.nix-profile/etc/profile.d/nix.sh
+include ~/.bashrc