Writer: don't prepend file mode bits to file mode field #20
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ar archives are only capable of storing regular files, so the file mode bits that `Reader` prepends to every file mode header field are redundant (and it forces users to strip them off manually whenever a file header passes through a `Writer` multiple times, otherwise they accumulate and overflow the header field). Just encode the mode we were given - which may or may not contain file mode bits of its own, at the caller's discretion - in octal and insert it into the header field.
toastwaffle
approved these changes
Oct 8, 2025
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ar archives are only capable of storing regular files, so the file mode bits that
Readerprepends to every file mode header field are redundant (and it forces users to strip them off manually whenever a file header passes through aWritermultiple times, otherwise they accumulate and overflow the header field). Just encode the mode we were given - which may or may not contain file mode bits of its own, at the caller's discretion - in octal and insert it into the header field.