Change std::fs::copy to use copyfile on MacOS and iOS
#58901
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Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @Mark-Simulacrum (or someone else) soon. If any changes to this PR are deemed necessary, please add them as extra commits. This ensures that the reviewer can see what has changed since they last reviewed the code. Due to the way GitHub handles out-of-date commits, this should also make it reasonably obvious what issues have or haven't been addressed. Large or tricky changes may require several passes of review and changes. Please see the contribution instructions for more information. |
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Centril
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r? @sfackler |
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I can't remember if we support 10.6 or not - @alexcrichton do you know? If so, we'll need to look up the symbols dynamically. |
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Officially, no, we only support 10.7+. Anecdotally though we support 10.6 with some build tweaks to libstd which have historically been used a bit. I think though that users of the 10.6 support have all moved beyond 10.6 themselves, so landing this should be fine in that regard. |
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It looks like the copyfile.h header is included in the MacOS 10.5 SDK - so this PR shouldn't break anything. |
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@bors r+ |
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📌 Commit 124ab2a has been approved by |
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🌲 The tree is currently closed for pull requests below priority 500, this pull request will be tested once the tree is reopened |
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Change `std::fs::copy` to use `copyfile` on MacOS and iOS `copyfile` on MacOS is similar to `CopyFileEx` on Windows. It supports copying resource forks, extended attributes, and file ACLs, none of which are copied by the current generic unix implementation. The API is available from MacOS 10.7 and iOS 4.3 (and possibly earlier but I haven't checked). Closes rust-lang#58895.
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Change `std::fs::copy` to use `copyfile` on MacOS and iOS `copyfile` on MacOS is similar to `CopyFileEx` on Windows. It supports copying resource forks, extended attributes, and file ACLs, none of which are copied by the current generic unix implementation. The API is available from MacOS 10.7 and iOS 4.3 (and possibly earlier but I haven't checked). Closes rust-lang#58895.
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Change `std::fs::copy` to use `copyfile` on MacOS and iOS `copyfile` on MacOS is similar to `CopyFileEx` on Windows. It supports copying resource forks, extended attributes, and file ACLs, none of which are copied by the current generic unix implementation. The API is available from MacOS 10.7 and iOS 4.3 (and possibly earlier but I haven't checked). Closes rust-lang#58895.
Centril
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Mar 10, 2019
Change `std::fs::copy` to use `copyfile` on MacOS and iOS `copyfile` on MacOS is similar to `CopyFileEx` on Windows. It supports copying resource forks, extended attributes, and file ACLs, none of which are copied by the current generic unix implementation. The API is available from MacOS 10.7 and iOS 4.3 (and possibly earlier but I haven't checked). Closes rust-lang#58895.
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Change `std::fs::copy` to use `copyfile` on MacOS and iOS `copyfile` on MacOS is similar to `CopyFileEx` on Windows. It supports copying resource forks, extended attributes, and file ACLs, none of which are copied by the current generic unix implementation. The API is available from MacOS 10.7 and iOS 4.3 (and possibly earlier but I haven't checked). Closes rust-lang#58895.
This was referenced Mar 11, 2019
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Change `std::fs::copy` to use `copyfile` on MacOS and iOS `copyfile` on MacOS is similar to `CopyFileEx` on Windows. It supports copying resource forks, extended attributes, and file ACLs, none of which are copied by the current generic unix implementation. The API is available from MacOS 10.7 and iOS 4.3 (and possibly earlier but I haven't checked). Closes rust-lang#58895.
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Rollup of 37 pull requests Successful merges: - #58854 (appveyor: Use VS2017 for all our images) - #58855 (std: Spin for a global malloc lock on wasm32) - #58873 (Fix "Auto-hide item methods documentation" setting) - #58901 (Change `std::fs::copy` to use `copyfile` on MacOS and iOS) - #58933 (Move alloc::prelude::* to alloc::prelude::v1, make alloc a subset of std) - #58938 (core: ensure VaList passes improper_ctypes lint) - #58941 (MIPS: add r6 support) - #58949 (SGX target: Expose thread id function in os module) - #58959 (Add release notes for PR #56243) - #58976 (Default to integrated `rust-lld` linker for UEFI targets) - #59009 (Fix SGX implementations of read/write_vectored.) - #59025 (Fix generic argument lookup for Self) - #59036 (Fix ICE in MIR pretty printing) - #59037 (Avoid some common false positives in intra doc link checking) - #59072 (we can now skip should_panic tests with the libtest harness) - #59079 (add suggestions to invalid macro item error) - #59082 (A few improvements to comments in user-facing crates) - #59102 (Consistent naming for duration_float methods and additional f32 methods) - #59118 (rustc: fix ICE when trait alias has bare Self) - #59139 (Unregress using scalar unions in constants.) - #59146 (Suggest return lifetime when there's only one named lifetime) - #59147 (Make std time tests more robust for platform differences) - #59152 (Stabilize Range*::contains.) - #59156 ([wg-async-await] Add regression test for #55809.) - #59158 (Revert "Don't generate minification variable if minification disabled") - #59169 (Add `-Z allow_features=...` flag) - #59173 (bootstrap: Default to a sensible llvm-suffix.) - #59175 (Don't run test launching `echo` since that doesn't exist on Windows) - #59180 (Use try blocks in rustc_codegen_ssa) - #59185 (No old chestnuts in iter::repeat docs) - #59201 (Remove restriction on isize/usize in repr(simd)) - #59204 (Output diagnostic information for rustdoc) - #59206 (Improved test output) - #59208 (Reduce a Code Repetition Related to Bit Operation) - #59212 (Add x86_64 musl host to the manifest) - #59221 (Option and Result: Add references to documentation of as_ref and as_mut) - #59231 (Stabilize Option::copied)
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Use SecRandomCopyBytes instead of /dev/urandom on MacOS SecRandomCopyBytes is [available since MacOS 10.7](https://developer.apple.com/documentation/security/1399291-secrandomcopybytes?language=objc) which is the minimum supported version and which was suggested in rust-lang#58901 (comment) is the earliest version currently in use. This matches the behaviour of other platforms which have a random number generator syscall available.
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Use SecRandomCopyBytes instead of /dev/urandom on MacOS SecRandomCopyBytes is [available since MacOS 10.7](https://developer.apple.com/documentation/security/1399291-secrandomcopybytes?language=objc) which is the minimum supported version and which was suggested in rust-lang#58901 (comment) is the earliest version currently in use. This matches the behaviour of other platforms which have a random number generator syscall available.
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Use SecRandomCopyBytes instead of /dev/urandom on MacOS SecRandomCopyBytes is [available since MacOS 10.7](https://developer.apple.com/documentation/security/1399291-secrandomcopybytes?language=objc) which is the minimum supported version and which was suggested in rust-lang#58901 (comment) is the earliest version currently in use. This matches the behaviour of other platforms which have a random number generator syscall available.
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Add a comment explaining why SecRandomCopyBytes is not used on MacOS SecRandomCopyBytes is [available since MacOS 10.7](https://developer.apple.com/documentation/security/1399291-secrandomcopybytes?language=objc) which is the minimum supported version and which was suggested in #58901 (comment) is the earliest version currently in use. This matches the behaviour of other platforms which have a random number generator syscall available.
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copyfileon MacOS is similar toCopyFileExon Windows. It supports copying resource forks, extended attributes, and file ACLs, none of which are copied by the current generic unix implementation.The API is available from MacOS 10.7 and iOS 4.3 (and possibly earlier but I haven't checked).
Closes #58895.