From: Christopher McCrory <chrismcc@gmail.com>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCH v1] RFC newpackage: fake-hwclock
Date: Wed, 18 Jul 2018 09:18:42 -0700 [thread overview]
Message-ID: <20180718161842.27559-1-chrismcc@gmail.com> (raw)
Save/restore system clock on machines without working RTC hardware
https://git.einval.com/cgi-bin/gitweb.cgi?p=fake-hwclock.git
This is a RFC, am I missing anything?
The version is 0.11, but I am not sure where this should be noted.
Signed-off-by: Christopher McCrory <chrismcc@gmail.com>
---
package/Config.in | 1 +
package/fake-hwclock/001-start-stop.patch | 20 ++++++++++++++++++++
package/fake-hwclock/Config.in | 9 +++++++++
package/fake-hwclock/fake-hwclock.cronjob | 1 +
package/fake-hwclock/fake-hwclock.mk | 31 +++++++++++++++++++++++++++++++
5 files changed, 62 insertions(+)
create mode 100644 package/fake-hwclock/001-start-stop.patch
create mode 100644 package/fake-hwclock/Config.in
create mode 100644 package/fake-hwclock/fake-hwclock.cronjob
create mode 100644 package/fake-hwclock/fake-hwclock.mk
diff --git a/package/Config.in b/package/Config.in
index 08a3eac48a..826e4c8717 100644
--- a/package/Config.in
+++ b/package/Config.in
@@ -1981,6 +1981,7 @@ comment "Utilities"
source "package/dialog/Config.in"
source "package/dtach/Config.in"
source "package/easy-rsa/Config.in"
+ source "package/fake-hwclock/Config.in"
source "package/file/Config.in"
source "package/gnupg/Config.in"
source "package/gnupg2/Config.in"
diff --git a/package/fake-hwclock/001-start-stop.patch b/package/fake-hwclock/001-start-stop.patch
new file mode 100644
index 0000000000..3ceb0ace4a
--- /dev/null
+++ b/package/fake-hwclock/001-start-stop.patch
@@ -0,0 +1,20 @@
+--- a/fake-hwclock.orig 2018-07-18 07:14:29.943169961 -0700
++++ a/fake-hwclock 2018-07-18 07:14:50.894364970 -0700
+@@ -30,7 +30,7 @@
+ fi
+
+ case $COMMAND in
+- save)
++ save|stop)
+ if [ -e $FILE ] ; then
+ NOW_SEC=$(date -u '+%s')
+ if $FORCE || [ $NOW_SEC -ge $HWCLOCK_EPOCH_SEC ] ; then
+@@ -45,7 +45,7 @@
+ date -u '+%Y-%m-%d %H:%M:%S' > $FILE
+ fi
+ ;;
+- load)
++ start|load)
+ if [ -e $FILE ] ; then
+ SAVED="$(cat $FILE)"
+ SAVED_SEC=$(date -u -d "$SAVED" '+%s')
diff --git a/package/fake-hwclock/Config.in b/package/fake-hwclock/Config.in
new file mode 100644
index 0000000000..4c59f07844
--- /dev/null
+++ b/package/fake-hwclock/Config.in
@@ -0,0 +1,9 @@
+config BR2_PACKAGE_FAKE_HWCLOCK
+ bool "fake-hwclock"
+ depends on BR2_INIT_SYSV
+ help
+ a script to load and save creenet time for systems without a
+ hardware RTC
+
+comment "fake-hwclock needs SysV init"
+ depends on !BR2_INIT_SYSV
diff --git a/package/fake-hwclock/fake-hwclock.cronjob b/package/fake-hwclock/fake-hwclock.cronjob
new file mode 100644
index 0000000000..cefb488719
--- /dev/null
+++ b/package/fake-hwclock/fake-hwclock.cronjob
@@ -0,0 +1 @@
+date -u '+%Y-%m-%d %H:%M:%S' > /etc/fake-hwclock.data
diff --git a/package/fake-hwclock/fake-hwclock.mk b/package/fake-hwclock/fake-hwclock.mk
new file mode 100644
index 0000000000..b47d6b14f5
--- /dev/null
+++ b/package/fake-hwclock/fake-hwclock.mk
@@ -0,0 +1,31 @@
+################################################################################
+#
+# fake-hwclock
+#
+################################################################################
+
+FAKE_HWCLOCK_VERSION = f889fd09f2d8d55819dd53785e8bd895866e6628
+FAKE_HWCLOCK_SITE = https://git.einval.com/git/fake-hwclock.git
+FAKE_HWCLOCK_SITE_METHOD=git
+FAKE_HWCLOCK_LICENSE_FILES = COPYING
+
+# add a daily cron job to save current time
+ifeq ($(BR2_PACKAGE_DCRON),y)
+FAKE_HWCLOCK_DEPENDENCIES += dcron
+define FAKE_HWCLOCK_CROBJOB
+ $(INSTALL) -D -m 755 $(FAKE_HWCLOCK_PKGDIR)/fake-hwclock.cronjob $(TARGET_DIR)/etc/cron.daily/fake-hwclock
+endef
+FAKE_HWCLOCK_POST_INSTALL_TARGET_HOOKS += FAKE_HWCLOCK_CROBJOB
+endif
+
+# This should run before everything else
+define FAKE_HWCLOCK_INSTALL_INIT_SYSV
+ $(INSTALL) -D -m 755 $(@D)/fake-hwclock $(TARGET_DIR)/etc/init.d/S00fake-hwclock
+endef
+
+# Use buildroot buildtime as a seed. Not ideal, but better than 1970-01-01 UTC
+define FAKE_HWCLOCK_INSTALL_TARGET_CMDS
+ date -u '+%Y-%m-%d %H:%M:%S' > $(TARGET_DIR)/etc/fake-hwclock.data
+endef
+
+$(eval $(generic-package))
--
2.14.4
next reply other threads:[~2018-07-18 16:18 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-18 16:18 Christopher McCrory [this message]
2018-07-19 7:03 ` [Buildroot] [PATCH v1] RFC newpackage: fake-hwclock Thomas Petazzoni
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