[pve-devel] [PATCH pve_installer] tui-installer: don't aborted install if min requirements not met

[Noel Ullreich]

If the minimum requirements are not met, the TUI installer will create a
popup notifying you that the install might not work and then exits the
installer.
While the GUI also creates such a popup, it will not exit the installer.
This patch adapts the behavior of the GUI: the TUI creates a popup
warning you that min spec is not met but doesn't abort the install.

Signed-off-by: Noel Ullreich <n.ullreich at proxmox.com>
---
 proxmox-tui-installer/src/main.rs   | 17 +++++++++++++++--
 proxmox-tui-installer/src/system.rs | 14 +-------------
 2 files changed, 16 insertions(+), 15 deletions(-)

diff --git a/proxmox-tui-installer/src/main.rs b/proxmox-tui-installer/src/main.rs
index 64f21fa..e9a3fb4 100644
--- a/proxmox-tui-installer/src/main.rs
+++ b/proxmox-tui-installer/src/main.rs
@@ -191,6 +191,8 @@ fn main() {
         Err(err) => initial_setup_error(&mut siv, &err),
     };
 
+    has_min_requirements(&runtime_info, &mut siv);
+
     siv.clear_global_callbacks(Event::CtrlChar('c'));
     siv.set_on_pre_event(Event::CtrlChar('c'), trigger_abort_install_dialog);
 
@@ -243,8 +245,6 @@ fn installer_setup(in_test_mode: bool) -> Result<(LocaleInfo, RuntimeInfo), Stri
             .map_err(|err| format!("Failed to retrieve runtime environment info: {err}"))?
     };
 
-    system::has_min_requirements(&runtime_info)?;
-
     runtime_info.disks.sort();
     if runtime_info.disks.is_empty() {
         Err("The installer could not find any supported hard disks.".to_owned())
@@ -291,6 +291,19 @@ fn initial_setup_error(siv: &mut CursiveRunnable, message: &str) -> ! {
     std::process::exit(1);
 }
 
+fn has_min_requirements(info: &RuntimeInfo, siv: &mut CursiveRunnable) -> () {
+    if info.total_memory < 1024 {
+        siv.add_layer(
+            Dialog::around(TextView::new(concat!(
+            "Less than 1 GiB of usable memory detected, installation will probably fail.\n\n",
+            "See 'System Requirements' in the documentation.")))
+                .title("Installer setup error")
+                .button("Ok", Cursive::quit),
+        );
+        siv.run();
+    }
+}
+
 fn display_setup_warning(siv: &mut Cursive, message: &str) {
     siv.add_layer(Dialog::info(message).title("Warning"));
 }
diff --git a/proxmox-tui-installer/src/system.rs b/proxmox-tui-installer/src/system.rs
index baceab9..7378dba 100644
--- a/proxmox-tui-installer/src/system.rs
+++ b/proxmox-tui-installer/src/system.rs
@@ -1,18 +1,6 @@
 use std::{fs::OpenOptions, io::Write, process::Command};
 
-use crate::setup::{KeyboardMapping, RuntimeInfo};
-
-pub fn has_min_requirements(info: &RuntimeInfo) -> Result<(), String> {
-    if info.total_memory < 1024 {
-        return Err(concat!(
-            "Less than 1 GiB of usable memory detected, installation will probably fail.\n\n",
-            "See 'System Requirements' in the documentation."
-        )
-        .to_owned());
-    }
-
-    Ok(())
-}
+use crate::setup::{KeyboardMapping};
 
 pub fn set_keyboard_layout(kmap: &KeyboardMapping) -> Result<(), String> {
     Command::new("setxkbmap")
-- 
2.39.2