Skip to main content

apply_pending_upgrade

atomcode_core::self_update

Function apply_pending_upgrade 

Source 
pub fn apply_pending_upgrade() -> Result<Option<AppliedUpgrade>>
Expand description

Bootstrap entry point: called once at the very top of main() BEFORE the tokio runtime, TUI, or any heavy init. Three outcomes:

  • Ok(None) — no pending upgrade, continue normally.
  • Ok(Some(AppliedUpgrade)) — staged binary is now live; caller must re_exec_self to hand control over.
  • Err(e) — apply failed; caller should log and continue with the OLD binary. We’ve already bumped the attempt counter (or discarded the stage past the cap).

SHA256 is re-verified here even though we verified at download time: a session-external process (backup tool, AV software, buggy sync) could have touched the file between sessions. Verification is cheap compared to installing a corrupted binary.