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Date:      Thu, 26 Sep 2019 16:33:21 +0000 (UTC)
From:      Michael Gmelin <grembo@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org
Subject:   svn commit: r352758 - stable/11/usr.sbin/freebsd-update
Message-ID:  <201909261633.x8QGXLTj086818@repo.freebsd.org>

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Author: grembo (ports committer)
Date: Thu Sep 26 16:33:20 2019
New Revision: 352758
URL: https://svnweb.freebsd.org/changeset/base/352758

Log:
  MFC r352513, r352514, r352662:
  
  As suggested by koobs, MFC recent freebsd-update changes to
  have a consistent user experience on all supported
  versions.
  
  r352513:
  freebsd-update.8: appease igor
  
  igor follows American style guides in the belief that abbreviations i.e.
  and e.g. are always followed by a comma.  Make that change now so that
  future updates to freebsd-update.8 do not complain about this.
  
  r352514:
  freebsd-update: make usage output consistent
  
  Drop trailing . which appeared only on description of IDS.
  
  r352662:
  freebsd-update: Add `updatesready' and `showconfig' commands
  
  `freebsd-update updatesready' can be used to check if there are any pending
  fetched updates that can be installed.
  
  `freebsd-update showconfig' writes freebsd-update's configuration to
  stdout.
  
  This also changes the exit code of `freebsd-update install' to 2 in case
  there are no updates pending to be installed and there wasn't a fetch phase
  in the same invocation. This allows scripts to tell apart these error
  conditions without breaking existing jail managers.
  
  PR:		240757, 240177, 229346
  Reviewed by:	manpages (bcr), secteam (emaste), yuripv
  Differential Revision:	https://reviews.freebsd.org/D21473

Modified:
  stable/11/usr.sbin/freebsd-update/freebsd-update.8
  stable/11/usr.sbin/freebsd-update/freebsd-update.sh

Modified: stable/11/usr.sbin/freebsd-update/freebsd-update.8
==============================================================================
--- stable/11/usr.sbin/freebsd-update/freebsd-update.8	Thu Sep 26 16:19:22 2019	(r352757)
+++ stable/11/usr.sbin/freebsd-update/freebsd-update.8	Thu Sep 26 16:33:20 2019	(r352758)
@@ -25,7 +25,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd June 14, 2017
+.Dd September 24, 2019
 .Dt FREEBSD-UPDATE 8
 .Os
 .Sh NAME
@@ -95,7 +95,7 @@ Trust an RSA key with SHA256 of
 .Ar KEY .
 (default: read value from configuration file.)
 .It Fl r Ar newrelease
-Specify the new release (e.g. 11.2-RELEASE) to which
+Specify the new release (e.g., 11.2-RELEASE) to which
 .Nm
 should upgrade (upgrade command only).
 .It Fl s Ar server
@@ -155,13 +155,24 @@ Note that this command may require up to 500 MB of spa
 depending on which components of the
 .Fx
 base system are installed.
+.It Cm updatesready
+Check if there are fetched updates ready to install.
+Returns exit code 2 if there are no updates to install.
 .It Cm install
 Install the most recently fetched updates or upgrade.
+Returns exit code 2 if there are no updates to install
+and the
+.Cm fetch
+command wasn't passed as an earlier argument in the same
+invocation.
 .It Cm rollback
 Uninstall the most recently installed updates.
 .It Cm IDS
 Compare the system against a "known good" index of the
 installed release.
+.It Cm showconfig
+Show configuration options after parsing conffile and command
+line options.
 .El
 .Sh TIPS
 .Bl -bullet

Modified: stable/11/usr.sbin/freebsd-update/freebsd-update.sh
==============================================================================
--- stable/11/usr.sbin/freebsd-update/freebsd-update.sh	Thu Sep 26 16:19:22 2019	(r352757)
+++ stable/11/usr.sbin/freebsd-update/freebsd-update.sh	Thu Sep 26 16:33:20 2019	(r352758)
@@ -62,9 +62,11 @@ Commands:
   cron         -- Sleep rand(3600) seconds, fetch updates, and send an
                   email if updates were found
   upgrade      -- Fetch upgrades to FreeBSD version specified via -r option
+  updatesready -- Check if there are fetched updates ready to install
   install      -- Install downloaded updates or upgrades
   rollback     -- Uninstall most recently installed updates
-  IDS          -- Compare the system against an index of "known good" files.
+  IDS          -- Compare the system against an index of "known good" files
+  showconfig   -- Show configuration
 EOF
 	exit 0
 }
@@ -503,7 +505,8 @@ parse_cmdline () {
 			;;
 
 		# Commands
-		cron | fetch | upgrade | install | rollback | IDS)
+		cron | fetch | upgrade | updatesready | install | rollback |\
+		IDS | showconfig)
 			COMMANDS="${COMMANDS} $1"
 			;;
 
@@ -827,7 +830,7 @@ install_check_params () {
 		echo "No updates are available to install."
 		if [ $ISFETCHED -eq 0 ]; then
 			echo "Run '$0 fetch' first."
-			exit 1
+			exit 2
 		fi
 		exit 0
 	fi
@@ -3333,6 +3336,21 @@ cmd_upgrade () {
 	upgrade_run || exit 1
 }
 
+# Check if there are fetched updates ready to install
+cmd_updatesready () {
+	# Construct a unique name from ${BASEDIR}
+	BDHASH=`echo ${BASEDIR} | sha256 -q`
+
+	# Check that we have updates ready to install
+	if ! [ -L ${BDHASH}-install ]; then
+		echo "No updates are available to install."
+		exit 2
+	fi
+
+	echo "There are updates available to install."
+	echo "Run '$0 install' to proceed."
+}
+
 # Install downloaded updates.
 cmd_install () {
 	install_check_params
@@ -3349,6 +3367,13 @@ cmd_rollback () {
 cmd_IDS () {
 	IDS_check_params
 	IDS_run || exit 1
+}
+
+# Output configuration.
+cmd_showconfig () {
+	for X in ${CONFIGOPTIONS}; do
+		echo $X=$(eval echo \$${X})
+	done
 }
 
 #### Entry point



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