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os.executable: fix panic when os.executable_fallback fails (early in startup)

pull/4567/head
Delyan Angelov 2020-04-23 21:52:13 +03:00
parent 1247718cbd
commit ebc41375f1
1 changed files with 4 additions and 0 deletions
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4
vlib/os/os.v
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@ -891,6 +891,10 @@ pub fn executable() string {
// it relies on path manipulation of os.args[0] and os.wd_at_startup, so it may not work properly in // it relies on path manipulation of os.args[0] and os.wd_at_startup, so it may not work properly in
// all cases, but it should be better, than just using os.args[0] directly. // all cases, but it should be better, than just using os.args[0] directly.
fn executable_fallback() string { fn executable_fallback() string {
if os.args.len == 0 {
// we are early in the bootstrap, os.args has not been initialized yet :-|
return ''
}
mut exepath := os.args[0] mut exepath := os.args[0]
if !os.is_abs_path(exepath) { if !os.is_abs_path(exepath) {
if exepath.contains( os.path_separator ) { if exepath.contains( os.path_separator ) {