Initial commit

LICENSE

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+MIT License
+
+Copyright (c) 2023
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.txt

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+hdd-speen keeps disks from spinning down, which can prolong their life.
+
+Prerequisites:
+* python3
+* python3-pyinotify
+* hdparm
+
+Installation:
+sudo ./install
+
+It installs itself to /etc/boot.d and /etc/pm/sleep.d (since disk properties are lost on sleep). This works if your system doesn't use systemd, and you use pm-utils to suspend.
+
+env contains a bunch of installation-specific settings.

bin/boot

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+#!/usr/bin/env bash
+DISTRO="$(basename "$(realpath -s "$BASH_SOURCE")")"
+nohup "$DISTRO" &> /dev/null &

bin/main

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+#!/usr/bin/env python3
+import sys
+import os
+import subprocess
+
+def isDisk(disk):
+	part = disk.rsplit("-",1)[-1]
+	for i in "0123456789": part = part.replace(i,"")
+	if part == "part": return False
+	try:
+		diskName = os.path.realpath(disk).rsplit("/",1)[-1]
+		with open("/sys/class/block/" +diskName+ "/device/type") as f: diskType = f.read().strip("\n")
+	except:
+		return False
+	if diskType != "0": return False
+	return True
+
+def applyProperties(disk):
+	print("APPLY: " +disk.rsplit("/",1)[-1]+ " ... ",end="")
+	sys.stdout.flush()
+	proc = subprocess.Popen(["hdparm","-B","255","-S","251",disk],stdout=subprocess.DEVNULL,stderr=subprocess.DEVNULL)
+	print(proc.wait())
+
+def applyToAll():
+	for root,dirs,files in os.walk("/dev/disk/by-id"):
+		for file in files:
+			ffile = os.path.join("/dev/disk/by-id",file)
+			if isDisk(ffile): applyProperties(ffile)
+		return
+
+# DAEMON
+import pyinotify
+class handler(pyinotify.ProcessEvent):
+	def __init__(self,*args,**kwargs):
+		super().__init__(*args,**kwargs)
+		applyToAll()
+		if "--oneshot" in sys.argv[1:]:
+			sys.exit(0)
+	
+	def process_IN_CREATE(self, event):
+		if isDisk(event.pathname): applyProperties(event.pathname)
+
+wm = pyinotify.WatchManager()
+notifier = pyinotify.Notifier(wm,handler())
+wm.add_watch('/dev/disk/by-id', pyinotify.IN_CREATE)
+notifier.loop(daemonize=False)

bin/resume

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+#!/usr/bin/env bash
+DISTRO="$(basename "$(realpath -s "$BASH_SOURCE")")"
+case "$1" in
+	resume|thaw)
+		"$DISTRO" --oneshot
+		;;
+esac

env

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+DISTRO="${DISTRO:=hdd-speen}"
+INSTALL_DIR="${INSTALL_DIR:=/usr/local/sbin}"
+BOOT_DIR="${BOOT_DIR:=/etc/boot.d}"
+PMUTILS_DIR="${PMUTILS_DIR:=/etc/pm}"

install

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+#!/usr/bin/env bash
+set -e
+SCRIPT_DIR="$(dirname "$(realpath -s "$BASH_SOURCE")")"
+source "$SCRIPT_DIR/env"
+
+# Main program
+mkdir -p "$INSTALL_DIR"
+cp "$SCRIPT_DIR/bin/main" "$INSTALL_DIR/$DISTRO"
+chown root "$INSTALL_DIR/$DISTRO"
+chmod 755 "$INSTALL_DIR/$DISTRO"
+
+# Boot script
+mkdir -p "$BOOT_DIR"
+cp "$SCRIPT_DIR/bin/boot" "$BOOT_DIR/$DISTRO"
+chown root "$BOOT_DIR/$DISTRO"
+chmod 755 "$BOOT_DIR/$DISTRO"
+
+# Wake script
+mkdir -p "$PMUTILS_DIR/sleep.d"
+cp "$SCRIPT_DIR/bin/resume" "$PMUTILS_DIR/sleep.d/$DISTRO"
+chown root "$PMUTILS_DIR/sleep.d/$DISTRO"
+chmod 755 "$PMUTILS_DIR/sleep.d/$DISTRO"