rsend: push phone folders to a home SSH host over rsync

A small Android app for one-way folder backup, a KISS alternative to
Syncthing. It bundles rsync (built from pinned source via the NDK) and
a pure-Go SSH transport, both shipped in the APK as lib*.so and run from
the native library directory.

rsend pins the host key, stores the ed25519 identity Keystore-encrypted,
pushes each folder additively or as a mirror, and runs on demand or on a
WiFi-only schedule. The build is self-contained and reproducible: make
setup provisions the toolchain, make builds rsync, rsh, and the APK.

1 files changed, 107 insertions, 0 deletions

diff --git a/app/src/main/res/layout/activity_remote.xml b/app/src/main/res/layout/activity_remote.xml
new file mode 100644
index 0000000..2c3ba4b
--- /dev/null
+++ b/app/src/main/res/layout/activity_remote.xml
@@ -0,0 +1,107 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/appRoot"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <include layout="@layout/app_toolbar" />
+
+    <ScrollView
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_weight="1">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        android:padding="@dimen/space_m">
+
+        <LinearLayout
+            style="@style/Widget.Rsend.Card"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="vertical">
+
+            <TextView
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:textAppearance="@style/TextAppearance.Rsend.Caption"
+                android:text="Host" />
+
+            <EditText
+                android:id="@+id/host"
+                style="@style/Widget.Rsend.EditText"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="4dp"
+                android:inputType="textUri"
+                android:hint="home.example.org" />
+
+            <TextView
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="@dimen/space_m"
+                android:textAppearance="@style/TextAppearance.Rsend.Caption"
+                android:text="Port" />
+
+            <EditText
+                android:id="@+id/port"
+                style="@style/Widget.Rsend.EditText"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="4dp"
+                android:inputType="number"
+                android:hint="22" />
+
+            <TextView
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="@dimen/space_m"
+                android:textAppearance="@style/TextAppearance.Rsend.Caption"
+                android:text="User" />
+
+            <EditText
+                android:id="@+id/user"
+                style="@style/Widget.Rsend.EditText"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="4dp"
+                android:inputType="text"
+                android:hint="backup" />
+        </LinearLayout>
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
+
+            <Button
+                android:id="@+id/test"
+                style="@style/Widget.Rsend.Button.Secondary"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:layout_marginEnd="@dimen/space_s"
+                android:text="Test connection" />
+
+            <Button
+                android:id="@+id/save"
+                style="@style/Widget.Rsend.Button.Primary"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:text="Save" />
+        </LinearLayout>
+
+        <TextView
+            android:id="@+id/status"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="@dimen/space_m"
+            android:textAppearance="@style/TextAppearance.Rsend.Mono"
+            android:textIsSelectable="true" />
+    </LinearLayout>
+    </ScrollView>
+</LinearLayout>