Summary: This diff makes EdenFS to be able to use EdenApi to import blobs and trees when requested objects are not present in local hgcache.
Reviewed By: chadaustin
Differential Revision: D18605547
fbshipit-source-id: 4acd2e07cfd9de6b6775ded30ea22a4478b9f1e4
Summary:
Add an option `experimental:use-edenapi` to `EdenConfig`.
See the next diff for usage.
Reviewed By: chadaustin
Differential Revision: D18605549
fbshipit-source-id: 2786c21bb38a76229078662cc5c1ddf906d1be4a
Summary: Uses `folly::IOBuf`'s `TakeOwnership` instead of `CopyBuffer` to achieve zero-copy of file content we get from Rust.
Reviewed By: chadaustin
Differential Revision: D18264900
fbshipit-source-id: 45baa70cb771a2bff0b31feaa1b85569625218eb
Summary:
Remove some unnecessary forward declarations, and use full paths in includes
so autodeps can recognize which rule these headers come from.
Reviewed By: fanzeyi
Differential Revision: D18652106
fbshipit-source-id: e2c84e1aaf846c91c18242050c4015eca8c501d3
Summary: This diff adds Rust structs to represent the data EdenFS wants from a manifest so we can pass these to EdenFS.
Reviewed By: wez
Differential Revision: D18365440
fbshipit-source-id: b474ceb698d9230e1b02c2cce1bec2a32bd3f94f
Summary:
Now that fmt is available in Folly builds (D14813810), use it to reduce binary code size in Folly Logger. This is done by moving most of the formatting logic behind the type-erased `vformat` API. Previously it was instantiated for all combinations of formatting argument types used in calls to `FB_LOGF` and `XLOGF` in a program.
The effect of this change can be illustrated by looking at symbol sizes as given by `nm -S -td` for the following test function:
```
void test_log() {
FB_LOGF(logger, WARN, "num events: {:06d}, duration: {:6.3f}", 1234, 5.6789);
}
```
compiled in `opt` mode.
`nm` before:
```
0000000004236736 0000000000000231 T test_log()
0000000004236992 0000000000001002 W std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > folly::LogStreamProcessor::formatLogString<int, double>(folly::Range<char const*>, int const&, double const&)
```
`nm` after:
```
0000000004237536 0000000000000231 T test_log()
0000000004237792 0000000000000251 W std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > folly::LogStreamProcessor::formatLogString<int, double>(folly::Range<char const*>, int const&, double const&)
0000000004238048 0000000000000740 W folly::LogStreamProcessor::vformatLogString[abi:cxx11](folly::Range<char const*>, fmt::v5::format_args, bool&)
```
Before we had one 1002 byte instantiation of `formatLogString<int, double>`. With this change it was reduced 4x to 251 bytes and non-template function `vformatLogString` was added which is shared among all logging calls. The size of `test_log` remained unchanged. There are even bigger savings from Folly Formatter instantiations which are no longer needed, e.g.
```
0000000004238032 0000000000001363 W _ZNK5folly13BaseFormatterINS_9FormatterILb0EJRKiRKdEEELb0EJS3_S5_EEclIZNKS7_8appendToINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEENSt9enable_ifIXsr12IsSomeStringIT_EE5valueEvE4typeERSH_EUlNS_5RangeIPKcEEE_EEvSK_
```
So in total this change results in ~5x per-call/instantiation binary size. It is possible to reduce binary size even further but it is not done in the current diff to keep it manageable.
In addition to binary size improvements, switching to fmt will potentially
* allow catching errors in format strings at compile time,
* simplify future migration to C++20 [`std::format`](http://eel.is/c++draft/format).
Reviewed By: simpkins
Differential Revision: D15485589
fbshipit-source-id: 06db4436839f11c2c3dbed7b36658e2193343411
Summary:
In preparation for merging fb-mercurial sources to the Eden repository,
move everything from the top-level directory into an `eden/scm`
subdirectory.
