Add opam support.

Replaces SSH_AUTH_SOCK with GnuPG SSH agent if already running. Otherwise, can
be forced to be used by setting ZSH_GPG_SSH_AGENT=1.

home/dotfiles/zshrc

@@ -19,8 +19,11 @@ ZSH_ALIAS=${ZSH_ALIAS:-1}
 ZSH_COMPAT_BASH_COMPLETION=${ZSH_COMPAT_BASH_COMPLETION:-1}
 ZSH_CUSTOM=${ZSH_CUSTOM:-1}
 ZSH_DEFAULT_TERM=${ZSH_DEFAULT_TERM:-1}
+ZSH_GCLOUD_FIXES=${ZSH_GCLOUD_FIXES:=$(when_binary_available gcloud)}
 ZSH_GPG_PINENTRY_FIX=${ZSH_GPG_PINENTRY_FIX:-1}
+ZSH_GPG_SSH_AGENT=${ZSH_GPG_SSH_AGENT:-$(has_binary gpgconf && [ -z "${SSH_AUTH_SOCK:-}" ] && [ -f $(gpgconf --list-dirs agent-ssh-socket) ] && printf 1 || printf 0)}
 ZSH_LOGO_LS=${ZSH_LOGL_LS:-$(when_binary_available logo-ls)}
+ZSH_OPAM=${ZSH_OPAM:-$(when_binary_available opam)}
 ZSH_PIPX=${ZSH_PIPX:-$(when_binary_available pipx)}
 ZSH_POWERLINE="${ZSH_POWERLINE:-1}"
 ZSH_PRESERVE_HISTORY="${ZSH_PRESERVE_HISTORY:-1}"
@@ -166,6 +169,40 @@ if [ $ZSH_SYNTAX_HIGHLIGHTING -gt 0 ]; then
 fi
 section_end
 
+# opam
+section "opam"
+if [ $ZSH_OPAM -gt 0 ]; then
+	[[ ! -r ~/.opam/opam-init/init.zsh ]] || source ~/.opam/opam-init/init.zsh >/dev/null 2>/dev/null
+fi
+section_end
+
+# gcloud fixes
+section "gcloud fixes"
+if [ $ZSH_GCLOUD_FIXES -gt 0 ]; then
+	log "Overriding gcloud command"
+	_local_zshrc_ssh_config_needs_cleanup() {
+		[ ! -f ~/.ssh/config ] || grep -iq '^\s\+IdentityFile' ~/.ssh/config
+	}
+
+	_local_zshrc_clean_up_ssh_config() {
+		if [ -f ~/.ssh/config ]; then
+			# avoid apps such as gcloud referencing their own SSH key, we have our own hardware-backed one, damn it!
+			sed -i -e 's/^\(\s\+\)IdentityFile/\1# Modified by ~\/.local_zshrc\n\1#IdentityFile/i' ~/.ssh/config
+		fi
+	}
+
+	gcloud() {
+		command gcloud "$@"
+	}
+
+	if has_binary gke-gcloud-auth-plugin; then
+		# avoid deprecation warning about gcloud auth by simply using the new plugin
+		log "Setting USE_GKE_GCLOUD_AUTH_PLUGIN=True to avoid deprecation warning"
+		USE_GKE_GCLOUD_AUTH_PLUGIN=True
+	fi
+fi
+section_end
+
 # symfony cli
 section "symfony cli"
 if [ $ZSH_SYMFONY_CLI -gt 0 ]; then
@@ -203,6 +240,14 @@ if [ $ZSH_GPG_PINENTRY_FIX -gt 0 ]; then
 fi
 section_end
 
+# gpg ssh agent
+section "gpg ssh agent"
+if [ $ZSH_GPG_SSH_AGENT -gt 0 ]; then
+	export SSH_AUTH_SOCK="$(gpgconf --list-dirs agent-ssh-socket)"
+	log "Changed SSH_AUTH_SOCK to $SSH_AUTH_SOCK (GnuPG SSH agent)"
+	gpgconf --launch gpg-agent
+fi
+
 # logo-ls
 section "logo-ls"
 if [ $ZSH_LOGO_LS -gt 0 ]; then