make upgrades work

Add a lib.version.so and when it's different, re-install.

1 files changed, 19 insertions, 5 deletions

diff --git a/standalone/android/runshell b/standalone/android/runshell
index 0a63dbc02..03d472d8c 100755
--- a/standalone/android/runshell
+++ b/standalone/android/runshell
@@ -18,24 +18,34 @@ cd "$HOME"
 
 setup () {
 	echo "Installation starting to $base"
+	cat "$base/lib/lib.version.so"
+
 	mkdir -p "$base/bin"
 	for prog in busybox git-annex git-shell git-upload-pack git gpg rsync ssh ssh-keygen; do
 		echo "installing $prog"
-		ln $base/lib/lib.$prog.so $base/bin/$prog
+		rm -f "$base/bin/$prog"
+		ln "$base/lib/lib.$prog.so" "$base/bin/$prog"
 	done
-	$base/bin/busybox --install $base/bin
-	$base/bin/tar zxf lib/lib.git.tar.gz.so
 
+	mkdir -p "$base/bin.new"
+	$base/bin/busybox --install $base/bin.new
+	mv $base/bin.new/* $base/bin
+	rmdir "$base/bin.new"
+
+	$base/bin/tar zxf lib/lib.git.tar.gz.so
 	for prog in git git-shell git-upload-pack; do
 		for link in $(cat $base/links/$prog); do
 			echo "linking $link to $prog"
-			ln $base/bin/$prog $base/$link
+			rm -f "$base/$link"
+			ln "$base/bin/$prog" "$base/$link"
 		done
-		rm $base/links/$prog
+		rm -f "$base/links/$prog"
 	done
 
 	mkdir -p "$base/templates"
 	mkdir -p "$base/tmp"
+
+	cp "$base/lib/lib.version.so" "$base/installed-version"
 	echo "Installation complete"
 }
 
@@ -47,6 +57,10 @@ if [ ! -d "$base/bin" ]; then
 		echo "Installation failed! Please report a bug and attach $HOME/git-annex-install.log"
 		sh
 	fi
+elif [ ! -e "$base/installed-version" ] || ! cmp "$base/installed-version" "$base/lib/lib.version.so" >/dev/null; then
+	if ! setup > $HOME/git-annex-install.log 2>&1; then
+		echo "Upgrade failed! Please report a bug and attach $HOME/git-annex-install.log"
+	fi
 fi
 
 PATH="$base/bin:$PATH"