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Fix dashboard -V to show cm-dashboard package hash not system hash

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Make dashboard -V show the same hash as the agent by extracting
the hash from the dashboard binary's nix store path instead of
the system configuration path. Now both will show identical
hashes since they're from the same cm-dashboard package.
This commit is contained in:
Christoffer Martinsson 2025-10-25 14:45:26 +02:00
parent 3d187c9220
commit 17b5921d8d
1 changed files with 6 additions and 11 deletions
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17
dashboard/src/main.rs
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@ -11,19 +11,14 @@ mod ui;
use app::Dashboard;
/// Get version showing current system config hash for easy rebuild verification
/// Get version showing cm-dashboard package hash for easy rebuild verification
fn get_version() -> &'static str {
use std::process::Command;
// Get the path of the current executable
let exe_path = std::env::current_exe().expect("Failed to get executable path");
let exe_str = exe_path.to_string_lossy();
// Get config hash from current system
let output = Command::new("readlink").arg("/run/current-system").output().expect("Failed to run readlink");
assert!(output.status.success(), "readlink command failed");
let store_path = String::from_utf8_lossy(&output.stdout);
let store_path = store_path.trim();
// Extract hash from nix store path
let hash_part = store_path.strip_prefix("/nix/store/").expect("Not a nix store path");
// Extract Nix store hash from path like /nix/store/HASH-cm-dashboard-0.1.0/bin/cm-dashboard
let hash_part = exe_str.strip_prefix("/nix/store/").expect("Not a nix store path");
let hash = hash_part.split('-').next().expect("Invalid nix store path format");
assert!(hash.len() >= 8, "Hash too short");