termux-tools: Add initial termux-upgrade-repo

packages/termux-tools/build.sh

@@ -23,7 +23,7 @@ termux_step_make_install() {
 		chmod +x $WRAPPER_FILE
 	done
 
-	cp -p $TERMUX_PKG_BUILDER_DIR/{dalvikvm,su,termux-fix-shebang,termux-reload-settings,termux-setup-storage,chsh,termux-open-url,termux-wake-lock,termux-wake-unlock,login,pkg,termux-open,termux-info} $TERMUX_PREFIX/bin/
+	cp -p $TERMUX_PKG_BUILDER_DIR/{dalvikvm,su,termux-fix-shebang,termux-reload-settings,termux-setup-storage,chsh,termux-open-url,termux-wake-lock,termux-wake-unlock,login,pkg,termux-open,termux-info,termux-upgrade-repo} $TERMUX_PREFIX/bin/
 	perl -p -i -e "s%\@TERMUX_PREFIX\@%${TERMUX_PREFIX}%g" $TERMUX_PREFIX/bin/dalvikvm
 
 	cp $TERMUX_PKG_BUILDER_DIR/motd $TERMUX_PREFIX/etc/motd

packages/termux-tools/termux-upgrade-repo

@@ -0,0 +1,40 @@
+#!/data/data/com.termux/files/usr/bin/sh
+set -e -u
+
+PREFIX=/data/data/com.termux/files/usr
+
+echo -n 'Checking Android version... '
+API_LEVEL=`getprop ro.build.version.sdk`
+if [ $API_LEVEL -lt 24 ]; then
+    echo This device is not running Android 7.0 or later.
+    exit 1
+fi
+echo Ok
+
+BACKUP_SCRIPT=$HOME/termux-reinstall.sh
+echo -n "Creating backup script ~/termux-reinstall.sh ... "
+echo pkg install `dpkg-query -f '${binary:Package}\n' -W` > $BACKUP_SCRIPT
+chmod +x $BACKUP_SCRIPT
+echo Ok
+echo ''
+
+echo 'WARNING: This will remove the directory:'
+echo $PREFIX
+echo ''
+echo 'Make sure that this is ok before proceeding.'
+echo 'Proceed with removing? [yN]'
+read ANSWER
+case $ANSWER in
+    y|Y|yes)
+       break
+       ;;
+   *)
+       echo 'Aborting...'
+       exit 1
+esac
+
+echo -n "Removing $PREFIX ... "
+echo rm -Rf /data/data/com.termux/files/usr
+echo Ok
+echo 'Now close all Termux sessions and reopen the app.'
+echo 'After restarting, execute ~/termux-reinstall.sh to reinstall packages.'