From 969410c5af909199724973b8851fcb6bf19eaba2 Mon Sep 17 00:00:00 2001
From: Luke Shumaker <lukeshu@sbcglobal.net>
Date: Mon, 13 Apr 2015 14:34:02 -0400
Subject: clean up XDG_RUNTIME_DIR handling

---
 .config/X11/clientrc                          |  1 +
 .config/login.d/01_xdg.sh                     | 27 --------------------------
 .config/login.d/02_tmpdir.sh                  |  2 --
 .config/login.d/02_xdg_runtime_dir.sh         | 28 +++++++++++++++++++++++++++
 .config/login.d/03_tmpdir.sh                  |  4 ++++
 .config/login.d/90_dot-runtime.sh             |  4 ----
 .config/login.d/90_symlink_xdg_runtime_dir.sh |  4 ++++
 .config/ssh/config                            |  2 +-
 8 files changed, 38 insertions(+), 34 deletions(-)
 delete mode 100644 .config/login.d/02_tmpdir.sh
 create mode 100644 .config/login.d/02_xdg_runtime_dir.sh
 create mode 100644 .config/login.d/03_tmpdir.sh
 delete mode 100644 .config/login.d/90_dot-runtime.sh
 create mode 100644 .config/login.d/90_symlink_xdg_runtime_dir.sh

diff --git a/.config/X11/clientrc b/.config/X11/clientrc
index 4773ea4..2c965da 100755
--- a/.config/X11/clientrc
+++ b/.config/X11/clientrc
@@ -17,6 +17,7 @@ if [ -f "$usermodmap" ]; then
 	xmodmap "$usermodmap"
 fi
 
+[ -n "$XDG_RUNTIME_DIR" ] || exit 1
 trap "rm -f $(printf '%q' "${XDG_RUNTIME_DIR}/x11-wm@${DISPLAY}")" EXIT
 mkfifo "${XDG_RUNTIME_DIR}/x11-wm@${DISPLAY}"
 
diff --git a/.config/login.d/01_xdg.sh b/.config/login.d/01_xdg.sh
index c9f789c..22bbc01 100644
--- a/.config/login.d/01_xdg.sh
+++ b/.config/login.d/01_xdg.sh
@@ -18,30 +18,3 @@
 if [ -n "$XDG_RUNTIME_DIR" ] && [ ! -d "$XDG_RUNTIME_DIR" ]; then
 	unset XDG_RUNTIME_DIR
 fi
-
-# Set XDG_RUNTIME_DIR if we can
-if [ -z "$XDG_RUNTIME_DIR" ] && type flock &>/dev/null; then
-	_diy_xdg_runtime_login() {
-		export XDG_RUNTIME_DIR="$XDG_CACHE_HOME/xdg-runtime-dir/$HOSTNAME"
-		# There's a race condition here, between the `ln -s` and `flock`.
-		# But it's not like I'll be hammering a box with logins.
-		if [ ! -d "$XDG_RUNTIME_DIR" ]; then
-			local tmp="$(mktemp -d --tmpdir -- "${USER}@${HOSTNAME}-runtime.XXXXXXXXXX")"
-			mkdir -p -- "$XDG_CACHE_HOME/xdg-runtime-dir"
-			ln -sfT -- "$tmp" "$XDG_RUNTIME_DIR"
-		fi
-		if ! [ /dev/fd/7 -ef "$XDG_CACHE_HOME/xdg-runtime-dir/.lock" ]; then
-			exec 7>"$XDG_CACHE_HOME/xdg-runtime-dir/.lock"
-			if flock -sn 7; then
-				# Unfortunately this doesn't survive across exec(1).
-				trap _diy_xdg_runtime_logout EXIT
-			fi
-		fi
-	}
-	_diy_xdg_runtime_logout() {
-		if flock -xn 7; then
-			rm -rf -- "$(readlink "$XDG_RUNTIME_DIR")"
-		fi
-	}
-	_diy_xdg_runtime_login
-fi
diff --git a/.config/login.d/02_tmpdir.sh b/.config/login.d/02_tmpdir.sh
deleted file mode 100644
index c0d5f18..0000000
--- a/.config/login.d/02_tmpdir.sh
+++ /dev/null
@@ -1,2 +0,0 @@
-mkdir -p -- "$XDG_RUNTIME_DIR/tmpdir"
-export TMPDIR="$XDG_RUNTIME_DIR/tmpdir"
diff --git a/.config/login.d/02_xdg_runtime_dir.sh b/.config/login.d/02_xdg_runtime_dir.sh
new file mode 100644
index 0000000..6d93359
--- /dev/null
+++ b/.config/login.d/02_xdg_runtime_dir.sh
@@ -0,0 +1,28 @@
+# This should be readable by /bin/sh
+
+# Set XDG_RUNTIME_DIR if we can
+if [ -z "$XDG_RUNTIME_DIR" ] && shopt -q login_shell && type flock &>/dev/null; then
+	_diy_xdg_runtime_login() {
+		export XDG_RUNTIME_DIR="$XDG_CACHE_HOME/xdg-runtime-dir/$HOSTNAME"
+		# There's a race condition here, between the `ln -s` and `flock`.
+		# But it's not like I'll be hammering a box with logins.
+		if [ ! -d "$XDG_RUNTIME_DIR" ]; then
+			local tmp="$(mktemp -d --tmpdir -- "${USER}@${HOSTNAME}-runtime.XXXXXXXXXX")"
+			mkdir -p -- "$XDG_CACHE_HOME/xdg-runtime-dir"
+			ln -sfT -- "$tmp" "$XDG_RUNTIME_DIR"
+		fi
+		if ! [ /dev/fd/7 -ef "$XDG_CACHE_HOME/xdg-runtime-dir/.lock" ]; then
+			exec 7>"$XDG_CACHE_HOME/xdg-runtime-dir/.lock"
+			if flock -sn 7; then
+				# Unfortunately this doesn't survive across exec(1).
+				trap _diy_xdg_runtime_logout EXIT
+			fi
+		fi
+	}
+	_diy_xdg_runtime_logout() {
+		if flock -xn 7; then
+			rm -rf -- "$(readlink "$XDG_RUNTIME_DIR")"
+		fi
+	}
+	_diy_xdg_runtime_login
+fi
diff --git a/.config/login.d/03_tmpdir.sh b/.config/login.d/03_tmpdir.sh
new file mode 100644
index 0000000..b94ef1a
--- /dev/null
+++ b/.config/login.d/03_tmpdir.sh
@@ -0,0 +1,4 @@
+if [ -n "$XDG_RUNTIME_DIR" ]; then
+	mkdir -p -- "$XDG_RUNTIME_DIR/tmpdir"
+	export TMPDIR="$XDG_RUNTIME_DIR/tmpdir"
+fi
diff --git a/.config/login.d/90_dot-runtime.sh b/.config/login.d/90_dot-runtime.sh
deleted file mode 100644
index 87d30ec..0000000
--- a/.config/login.d/90_dot-runtime.sh
+++ /dev/null
@@ -1,4 +0,0 @@
-# This is really only needed for ssh ControlPath; as I don't have a
-# way to communicate XD
-mkdir -p -- ~/.runtime
-ln -sfT -- "$XDG_RUNTIME_DIR" ~/.runtime/"$HOSTNAME"
diff --git a/.config/login.d/90_symlink_xdg_runtime_dir.sh b/.config/login.d/90_symlink_xdg_runtime_dir.sh
new file mode 100644
index 0000000..b89f7b1
--- /dev/null
+++ b/.config/login.d/90_symlink_xdg_runtime_dir.sh
@@ -0,0 +1,4 @@
+# This is really only needed for ssh ControlPath; as I don't have a
+# way to communicate XDG_RUNTIME_DIR
+mkdir -p -- "$XDG_CACHE_HOME/xdg-runtime-dir"
+ln -sfT -- "$XDG_RUNTIME_DIR" "$XDG_CACHE_HOME/xdg-runtime-dir/$HOSTNAME"
diff --git a/.config/ssh/config b/.config/ssh/config
index cc796ed..5ea36ba 100644
--- a/.config/ssh/config
+++ b/.config/ssh/config
@@ -1,7 +1,7 @@
 Host *
 	Protocol 2
 	ControlMaster auto
-	ControlPath ~/.runtime/%l/ssh-%r@%h:%p
+	ControlPath ~/.cache/xdg-runtime-dir/%l/ssh-%r@%h:%p
 	Compression yes
 
 # Purdue ###################################################
-- 
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