Fine-tune my shell and git configs.

.ashrc

@@ -11,6 +11,9 @@ is_ssh() {
 	fi
 }
 
+# The shell might not start in the home directory.
+cd "$HOME"
+
 # Signal to some programs that vi is the editor that should be launched.
 export EDITOR=vim
 

.gitconfig

@@ -3,11 +3,33 @@
 # Please adapt and uncomment the following lines:
 	name = Jordan Bancino
 	email = jordan@bancino.net
+	signingkey = /home/jordan/.ssh/id_ed25519.pub
 [push]
 	autoSetupRemote = yes
+	gpgsign = true
 [credential]
 	helper = store
 [pull]
 	rebase = false
 [init]
 	defaultBranch = master
+[transfer]
+	fsckobjects = true
+[fetch]
+	fsckobjects = true
+	prune = true
+[receive]
+	fsckObjects = true
+[url "git.github.com:"]
+	insteadOf = "https://github.com"
+[branch]
+	sort = -comitterdate
+[diff]
+	context = 10
+	colorMoved = default
+[gpg]
+	format = ssh
+[commit]
+	gpgsign = true
+[tag]
+	gpgsign = true