Fix #588: Add chrony ntp client & timezone config (#674)

This adds chrony as the ntp client (starting on boot), and also adds a
prompt in the init step for configuring the timezone.

aports/main/postmarketos-base/APKBUILD

@@ -1,12 +1,13 @@
 pkgname=postmarketos-base
 pkgver=3
-pkgrel=8
+pkgrel=9
 pkgdesc="Meta package for minimal postmarketOS base"
 url="https://github.com/postmarketOS"
 arch="noarch"
 license="GPL3+"
 depends="
 	alpine-base
+	chrony
 	cryptsetup
 	eudev
 	haveged
@@ -67,4 +68,4 @@ sha512sums="38dc75c0ed32b76dccd3d8e7e8173e8b7d91847cf2b07123f376b95af46b4f89798b
 3ceeee37f558e7c95ad973692b6a437f997e6b46c3d1c2257ddfb1529a5633477373aa123c7f08164e818daae50acb203d151379f27ca11bd458809e6a0d4de7  swapfile
 f5cc0f1265955d2646e5f099dd4b5d4c287945bfc18c16044db57670d456f55c678fc11cc59e6dab3fa340832ce869d516302a3a35c13518539ed0cedca51819  swapfile.init
 e0d2d48b82a03239a4c0a00acaf83e00d397c23a8d7c71053d4e2a383357c22dcedef9e81b0e12a1d7514e1fdbe0bb3eb82613d18b29034a7ce5447f13c84a53  swapfile.conf
-4f00ad8ce8533fb884b083c094adada26ef845718a229e3ae94986997997297d9bec073babbe8829c29d28aaf31a01ebf28c041395ae7d8631be574b88059e34  postmarketos-base.post-install"
+2550a40f44e593bd6c2fafcf27464470d0cc97b1de9ad712c4a167b3ae6cef015a8ba9249176e446bb7852c0d881d3f02a9eba60f4ac655462bc4016026e51e6  postmarketos-base.post-install"

aports/main/postmarketos-base/postmarketos-base.post-install

@@ -13,7 +13,7 @@ done
 for service in hwclock modules sysctl hostname bootmisc swclock syslog; do
 	rc-update -q add $service boot
 done
-for service in dbus haveged sshd swapfile wpa_supplicant; do
+for service in dbus haveged sshd swapfile wpa_supplicant chronyd; do
 	rc-update -q add $service default
 done
 for service in mount-ro killprocs savecache; do
@@ -76,3 +76,8 @@ sed -i 's/# %wheel ALL=(ALL) ALL/%wheel ALL=(ALL) ALL/' /etc/sudoers
 # Add user to video group for proper framebuffer permissions
 username="$(getent passwd 1000 | cut -d ":" -f 1)"
 usermod -a -G video "$username"
+
+# Set chrony to quickly correct system time on first boot, if necessary
+if ! grep -q "makestep" /etc/chrony/chrony.conf; then
+	echo "makestep 1 -1" >> /etc/chrony/chrony.conf
+fi

pmb/config/__init__.py

@@ -63,6 +63,7 @@ defaults = {
     "ui": "weston",
     "user": "user",
     "keymap": "",
+    "timezone": "GMT",
 
     # aes-xts-plain64 would be better, but this is not supported on LineageOS
     # kernel configs

pmb/config/init.py

@@ -23,6 +23,7 @@ import os
 import pmb.config
 import pmb.helpers.cli
 import pmb.helpers.devices
+import pmb.helpers.run
 import pmb.helpers.ui
 import pmb.chroot.zap
 import pmb.parse.deviceinfo
@@ -86,6 +87,30 @@ def ask_for_keymaps(args, device):
                       " one from the list above.")
 
 
+def ask_for_timezone(args):
+    localtimes = ["/etc/zoneinfo/localtime", "/etc/localtime"]
+    zoneinfo_path = "/usr/share/zoneinfo/"
+    for localtime in localtimes:
+        if not os.path.exists(localtime):
+            continue
+        tz = ""
+        if os.path.exists(localtime):
+            tzpath = os.path.realpath(localtime)
+            tzpath = tzpath.rstrip()
+            if os.path.exists(tzpath):
+                try:
+                    _, tz = tzpath.split(zoneinfo_path)
+                except:
+                    pass
+        if tz:
+            logging.info("Your host timezone: " + tz)
+            if pmb.helpers.cli.confirm(args, "Use this timezone instead of GMT?",
+                                       default="y"):
+                return tz
+    logging.info("WARNING: Unable to determine timezone configuration on host, using GMT.")
+    return "GMT"
+
+
 def init(args):
     cfg = pmb.config.load(args)
 
@@ -134,6 +159,9 @@ def init(args):
                                                                None, args.extra_packages,
                                                                validation_regex="^(|[-.+\w\s]+(?:,[-.+\w\s]*)*)$")
 
+    # Configure timezone info
+    cfg["pmbootstrap"]["timezone"] = ask_for_timezone(args)
+
     # Do not save aports location to config file
     del cfg["pmbootstrap"]["aports"]
 

pmb/install/install.py

@@ -310,6 +310,9 @@ def install(args):
     # Set the keymap if the device requires it
     setup_keymap(args)
 
+    # Set timezone
+    pmb.chroot.root(args, ["setup-timezone", "-z", args.timezone], suffix)
+
     if args.android_recovery_zip:
         install_recovery_zip(args)
     else: