add utils system image, move compat into system-images

system-images/compat/src/backup.rs

@@ -0,0 +1,74 @@
+use std::path::Path;
+
+pub fn create_backup<P: AsRef<Path>>(
+    mountpoint: P,
+    data_path: P,
+    app_id: &str,
+) -> Result<(), anyhow::Error> {
+    let path = std::fs::canonicalize(mountpoint)?;
+    let volume_path = Path::new(embassy::VOLUMES).join(app_id);
+
+    let exclude = if volume_path.is_dir() {
+        let ignore_path = volume_path.join(".backupignore");
+        if ignore_path.is_file() {
+            std::fs::read(ignore_path)?
+        } else {
+            Vec::new()
+        }
+    } else {
+        return Err(anyhow::anyhow!("Volume For {} Does Not Exist", app_id))
+    };
+
+    let mut data_cmd = std::process::Command::new("duplicity");
+    for exclude in exclude {
+        if exclude.to_string().starts_with('!') {
+            data_cmd.arg(format!(
+                "--include={}",
+                volume_path.join(exclude.to_string().trim_start_matches('!')).display()
+            ));
+        } else {
+            data_cmd.arg(format!("--exclude={}", volume_path.join(exclude.to_string()).display()));
+        }
+    }
+    let data_res = data_cmd
+        .arg(volume_path)
+        .arg(format!("file://{}", data_path.as_ref().display().to_string()))
+        .output();
+    data_res?;
+
+    Ok(())
+}
+
+pub fn restore_backup<P: AsRef<Path>>(
+    path: P,
+    data_path: P,
+    app_id: &str,
+) -> Result<(), anyhow::Error> {
+    let path = std::fs::canonicalize(path)?;
+    if !path.is_dir() {
+        anyhow::anyhow!("Backup Path Must Be Directory");
+    }
+    let metadata_path = path.join("metadata.yaml");
+    let volume_path = Path::new(embassy::VOLUMES).join(app_id);
+
+    let mut data_cmd = std::process::Command::new("duplicity");
+    data_cmd
+        .arg("--force")
+        .arg(format!("file://{:#?}", data_path.as_ref().display().to_string()))
+        .arg(&volume_path);
+
+    let data_output = data_cmd.status()?;
+    if !data_output.success() {
+        return Err(anyhow::anyhow!("duplicity error for {}", app_id))
+    }
+
+    std::fs::copy(
+        metadata_path,
+        Path::new(embassy::VOLUMES)
+            .join(app_id)
+            .join("start9")
+            .join("restore.yaml"),
+    )?;
+
+    Ok(())
+}