systemd: support systemd.tmpfiles.settings

Signed-off-by: phanirithvij <phanirithvij2000@gmail.com>

src/activate.rs

@@ -82,7 +82,7 @@ pub fn activate(store_path: &StorePath, ephemeral: bool) -> Result<()> {
     match etc_files::activate(store_path, old_state.file_tree, ephemeral) {
         Ok(etc_tree) => {
             log::info!("Activating tmp files...");
-            match tmp_files::activate() {
+            match tmp_files::activate(&etc_tree) {
                 Ok(_) => {
                     log::debug!("Successfully created tmp files");
                 }

src/activate/etc_files/etc_tree.rs

@@ -27,11 +27,11 @@ impl FileStatus {
 #[serde(rename_all = "camelCase")]
 pub struct FileTree {
     status: FileStatus,
-    path: PathBuf,
+    pub(crate) path: PathBuf,
     // TODO directories and files are now both represented as a string associated with a nested
     // map. For files the nested map is simple empty.
     // We could potentially optimise this.
-    nested: HashMap<String, FileTree>,
+    pub(crate) nested: HashMap<String, FileTree>,
 }
 
 impl AsRef<FileTree> for FileTree {

src/activate/tmp_files.rs

@@ -1,15 +1,26 @@
 use crate::activate;
+use crate::activate::etc_files::FileTree;
 
 use super::ActivationResult;
 use std::process;
 
 type TmpFilesActivationResult = ActivationResult<()>;
 
-pub fn activate() -> TmpFilesActivationResult {
+pub fn activate(etc_tree: &FileTree) -> TmpFilesActivationResult {
+    let conf_files = etc_tree
+        .nested
+        .get("etc")
+        .unwrap()
+        .nested
+        .get("tmpfiles.d")
+        .unwrap()
+        .nested
+        .iter()
+        .map(|(_, node)| node.path.to_string_lossy().to_string())
+        .collect::<Vec<_>>();
     let mut cmd = process::Command::new("systemd-tmpfiles");
-    cmd.arg("--create")
-        .arg("--remove")
-        .arg("/etc/tmpfiles.d/00-system-manager.conf");
+    cmd.arg("--create").arg("--remove").args(conf_files);
+    log::debug!("running {:#?}", cmd);
     let output = cmd
         .stdout(process::Stdio::inherit())
         .stderr(process::Stdio::inherit())