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Merge pull request #4216 from roc-lang/fix-envp

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fix envp
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Ayaz 2022-10-05 17:01:31 -05:00 • committed by GitHub
commit 797763b5fa
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5 changed files with 57 additions and 28 deletions
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15
crates/cli/src/lib.rs
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@ -762,12 +762,17 @@ fn make_argv_envp<'a, I: IntoIterator<Item = S>, S: AsRef<OsStr>>(
// envp is an array of pointers to strings, conventionally of the
// form key=value, which are passed as the environment of the new
// program. The envp array must be terminated by a NULL pointer.
let mut buffer = Vec::with_capacity(100);
let envp_cstrings: bumpalo::collections::Vec<CString> = std::env::vars_os()
.flat_map(|(k, v)| {
[
CString::new(k.as_bytes()).unwrap(),
CString::new(v.as_bytes()).unwrap(),
]
.map(|(k, v)| {
buffer.clear();
use std::io::Write;
buffer.write_all(k.as_bytes()).unwrap();
buffer.write_all(b"=").unwrap();
buffer.write_all(v.as_bytes()).unwrap();
CString::new(buffer.as_slice()).unwrap()
})
.collect_in(arena);