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, 9 insertions, 6 deletions

diff --git a/.profile b/.profile
index 1875805..3d0b45c 100644
--- a/.profile
+++ b/.profile
@@ -1,3 +1,5 @@
+export VISUAL="emacsclient -c"
+
 export PATH="$HOME/.local/bin:$HOME/.cabal/bin:$HOME/.cargo/bin:$HOME/.elan/bin${PATH:+:}$PATH"
 
 export XDG_CONFIG_HOME="$HOME/.config"
@@ -7,11 +9,12 @@ export XDG_DATA_DIRS="/usr/local/share:/usr/share"
 export MAILDIR="$HOME/mail"
 export CVS_RSH="ssh"
 
-export GUIX_LOCPATH="$HOME/.guix-profile/lib/locale"
-export PATH="$HOME/.config/guix/current/bin${PATH:+:}$PATH"
-export SSL_CERT_DIR="$HOME/.guix-profile/etc/ssl/certs"
-export SSL_CERT_FILE="$HOME/.guix-profile/etc/ssl/certs/ca-certificates.crt"
-export GIT_SSL_CAINFO="$SSL_CERT_FILE"
+if [ -x "$(command -v guix)" ]; then
+    export GUIX_LOCPATH="$HOME/.guix-profile/lib/locale"
+    export PATH="$HOME/.config/guix/current/bin${PATH:+:}$PATH"
+    export SSL_CERT_DIR="$HOME/.guix-profile/etc/ssl/certs"
+    export SSL_CERT_FILE="$HOME/.guix-profile/etc/ssl/certs/ca-certificates.crt"
+    export GIT_SSL_CAINFO="$SSL_CERT_FILE"
+fi
 
 export NIXPKGS="$HOME/src/git/nixpkgs"
-if [ -e $HOME/.nix-profile/etc/profile.d/nix.sh ]; then . $HOME/.nix-profile/etc/profile.d/nix.sh; fi