From 7df2fb341747003cee73cf8e819e6cec824edaba Mon Sep 17 00:00:00 2001
From: Leonard Kugis <leonard@kug.is>
Date: Fri, 17 Oct 2025 05:03:07 +0200
Subject: Added option to add tar args

---
 src/main.rs | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/src/main.rs b/src/main.rs
index c795089..3b6f2cf 100755
--- a/src/main.rs
+++ b/src/main.rs
@@ -80,6 +80,8 @@ struct Cli {
     #[arg(long, allow_hyphen_values = true)]
     squashr_cryptsetup_open_args: Option<String>,
 
+    squashr_tar_args: Option<String>,
+
     /// Passphrase für cryptsetup; ACHTUNG: Sichtbar im Prozesslisting.
     #[arg(long)]
     squashr_cryptsetup_pass: Option<String>,
@@ -121,6 +123,7 @@ struct Config {
     SQUASHR_CRYPTSETUP_ENABLE: Option<bool>,
     SQUASHR_CRYPTSETUP_CREATE_ARGS: Option<String>,
     SQUASHR_CRYPTSETUP_OPEN_ARGS: Option<String>,
+    SQUASHR_TAR_ARGS: Option<String>,
     SQUASHR_CRYPTSETUP_PASS: Option<String>,
     SQUASHR_CRYPTSETUP_PASS_FILE: Option<PathBuf>,
 }
@@ -140,6 +143,7 @@ impl Default for Config {
             SQUASHR_CRYPTSETUP_ENABLE: Some(false),
             SQUASHR_CRYPTSETUP_CREATE_ARGS: Some("--type luks2".to_string()),
             SQUASHR_CRYPTSETUP_OPEN_ARGS: Some("--type luks".to_string()),
+            SQUASHR_TAR_ARGS: None,
             SQUASHR_CRYPTSETUP_PASS: None,
             SQUASHR_CRYPTSETUP_PASS_FILE: None,
         }
@@ -187,6 +191,7 @@ fn load_config(path: Option<&Path>) -> Result<Config> {
             set("SQUASHR_CRYPTSETUP_ENABLE", &mut |v| cfg.SQUASHR_CRYPTSETUP_ENABLE = v.parse().ok());
             set("SQUASHR_CRYPTSETUP_CREATE_ARGS", &mut |v| cfg.SQUASHR_CRYPTSETUP_CREATE_ARGS = Some(v));
             set("SQUASHR_CRYPTSETUP_OPEN_ARGS", &mut |v| cfg.SQUASHR_CRYPTSETUP_OPEN_ARGS = Some(v));
+            set("SQUASHR_TAR_ARGS", &mut |v| cfg.SQUASHR_TAR_ARGS = Some(v));
             set("SQUASHR_CRYPTSETUP_PASS", &mut |v| cfg.SQUASHR_CRYPTSETUP_PASS = Some(v));
             set("SQUASHR_CRYPTSETUP_PASS_FILE", &mut |v| cfg.SQUASHR_CRYPTSETUP_PASS_FILE = Some(PathBuf::from(v)));
         }
@@ -211,6 +216,7 @@ fn apply_env_overrides(mut cfg: Config)->Result<Config>{
     if let Some(v)=bool_env("SQUASHR_CRYPTSETUP_ENABLE"){ cfg.SQUASHR_CRYPTSETUP_ENABLE=Some(v); }
     if let Some(v)=str_env("SQUASHR_CRYPTSETUP_CREATE_ARGS"){ cfg.SQUASHR_CRYPTSETUP_CREATE_ARGS=Some(v); }
     if let Some(v)=str_env("SQUASHR_CRYPTSETUP_OPEN_ARGS"){ cfg.SQUASHR_CRYPTSETUP_OPEN_ARGS=Some(v); }
+    if let Some(v)=str_env("SQUASHR_TAR_ARGS"){ cfg.SQUASHR_TAR_ARGS=Some(v); }
     if let Some(v)=str_env("SQUASHR_CRYPTSETUP_PASS"){ cfg.SQUASHR_CRYPTSETUP_PASS=Some(v); }
     if let Some(v)=str_env("SQUASHR_CRYPTSETUP_PASS_FILE"){ cfg.SQUASHR_CRYPTSETUP_PASS_FILE=Some(PathBuf::from(v)); }
     Ok(cfg)
@@ -253,6 +259,7 @@ struct Ctx {
     luks_create_args: Option<String>,
     luks_open_args: Option<String>,
     luks_pass: Option<Vec<u8>>,
+    tar_args: Option<String>,
     verbose: bool,
     debug_capture: bool,
     debug_cap_bytes: u64,
@@ -309,6 +316,7 @@ impl Ctx {
             luks_enable: cfg.SQUASHR_CRYPTSETUP_ENABLE.unwrap_or(false),
             luks_create_args: cfg.SQUASHR_CRYPTSETUP_CREATE_ARGS,
             luks_open_args: cfg.SQUASHR_CRYPTSETUP_OPEN_ARGS,
+            tar_args: cfg.SQUASHR_TAR_ARGS,
             luks_pass,
             verbose,
             debug_capture,
@@ -876,6 +884,13 @@ fn build_squash_image_tar_sqfstar(
         .arg("--numeric-owner")
         .arg("--ignore-failed-read");
 
+    // Benutzerdefinierte TAR-Args (am Ende → überschreiben Defaults, "last wins")
+    if let Some(extra) = ctx.tar_args.as_ref() {
+        for tok in shell_split(extra) {
+            tar.arg(tok);
+        }
+    }
+
     tar.stdin(std::process::Stdio::piped());
     tar.stdout(std::process::Stdio::piped());
     tar.stderr(std::process::Stdio::inherit());
-- 
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