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1ece621c4d
sapling/eden/scm/lib
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Jun Wu 1ece621c4d indexedlog: replace Mmap with Bytes in Index 
Summary:
This simplifies the code a bit (no special cases about 0-sized mmap buffers)
and makes it cheaper to clone the index buffer (just an Arc::clone, without
another mmap syscall).

Reviewed By: xavierd

Differential Revision: D19818718

fbshipit-source-id: e96d42af74c7f0bb11703c5da31cdfbd5d76c372
2020-02-28 09:23:54 -08:00
..
asyncrevisionstore/src pyrevisionstore: use PyPath instead of PyBytes 2020-01-28 10:01:50 -08:00
auth convert to bytes 0.5 2020-02-24 10:28:46 -08:00
backingstore convert to bytes 0.5 2020-02-24 10:28:46 -08:00
blackbox cargo: bump serde_cbor to 0.11 2020-02-21 14:08:43 -08:00
bookmarkstore Switch from failure::Fail trait to std::error::Error for errors 2019-11-22 08:53:31 -08:00
cdatapack cmake: always build support for the EdenSCM backing store 2019-11-22 13:00:07 -08:00
clib cmake: always build support for the EdenSCM backing store 2019-11-22 13:00:07 -08:00
clidispatch convert to bytes 0.5 2020-02-24 10:28:46 -08:00
cliparser Update rustfmt and reformat fbsource 2020-02-04 17:14:27 -08:00
commitcloudsubscriber Switch from failure::Fail trait to std::error::Error for errors 2019-11-22 08:53:31 -08:00
commitstore/bench-serialize cargo: bump serde_cbor to 0.11 2020-02-21 14:08:43 -08:00
configparser convert to bytes 0.5 2020-02-24 10:28:46 -08:00
cpython-ext cpython-ext: add a way to wrap Rust Write object into a Python object 2020-02-04 18:41:13 -08:00
dag nameset: UnionSet 2020-02-27 07:34:57 -08:00
drawdag Move fb-mercurial sources into an eden/scm subdirectory. 2019-11-13 16:04:48 -08:00
edenapi convert to bytes 0.5 2020-02-24 10:28:46 -08:00
edenfs-client update the Rust print_status() function to take an IO parameter 2020-02-26 14:54:40 -08:00
encoding Move fb-mercurial sources into an eden/scm subdirectory. 2019-11-13 16:04:48 -08:00
hgcommands tracing-collector: support owned strings in TreeSpans 2020-02-28 09:16:14 -08:00
hgtime hgtime: fix corner case of date range parsing 2020-01-27 09:37:00 -08:00
indexedlog indexedlog: replace Mmap with Bytes in Index 2020-02-28 09:23:54 -08:00
linelog Move fb-mercurial sources into an eden/scm subdirectory. 2019-11-13 16:04:48 -08:00
lz4-pyframe Switch from failure::Fail trait to std::error::Error for errors 2019-11-22 08:53:31 -08:00
manifest manifest: add testutil in core package 2020-01-14 11:49:52 -08:00
manifest-tree convert to bytes 0.5 2020-02-24 10:28:46 -08:00
metalog Update rustfmt and reformat fbsource 2020-02-04 17:14:27 -08:00
mincode Move fb-mercurial sources into an eden/scm subdirectory. 2019-11-13 16:04:48 -08:00
minibench Move fb-mercurial sources into an eden/scm subdirectory. 2019-11-13 16:04:48 -08:00
minibytes minibytes: add serde support 2020-02-07 14:21:39 -08:00
mpatch Move fb-mercurial sources into an eden/scm subdirectory. 2019-11-13 16:04:48 -08:00
mpatch-sys use absolute includes for the native cext modules 2020-02-19 13:05:06 -08:00
mutationstore mutationstore: update tests so that user is now a string 2020-01-30 19:54:45 -08:00
nodemap indexedlog: replace Log's dir with a new GenericPath type 2020-01-17 03:57:59 -08:00
pathmatcher pathmatcher: hint globset to use prefix strategy instead of regexp strategy 2019-11-14 14:27:39 -08:00
procinfo Move fb-mercurial sources into an eden/scm subdirectory. 2019-11-13 16:04:48 -08:00
radixbuf Update rustfmt and reformat fbsource 2020-02-04 17:14:27 -08:00
renderdag renderdag: add tests showing how orders affect rendering 2020-01-23 20:50:56 -08:00
revisionstore revisionstore: add a get_stripped method to ContentStore 2020-02-27 12:29:42 -08:00
stackdesc Move fb-mercurial sources into an eden/scm subdirectory. 2019-11-13 16:04:48 -08:00
third-party Merge fb-mercurial sources into the eden repository 2019-11-13 20:20:32 -08:00
thrift-types rust/thrift: Un-rename futures-preview dependency 2020-02-27 22:27:58 -08:00
tracing-collector tracing-collector: support owned strings in TreeSpans 2020-02-28 09:16:14 -08:00
treestate Switch from failure::Fail trait to std::error::Error for errors 2019-11-22 08:53:31 -08:00
types convert to bytes 0.5 2020-02-24 10:28:46 -08:00
util pyconfigparser: use PyPath instead of PyByte 2020-01-28 10:14:14 -08:00
vlqencoding Move fb-mercurial sources into an eden/scm subdirectory. 2019-11-13 16:04:48 -08:00
workingcopy workingcopy: add error handling and reporting to rust walker 2020-01-13 15:26:30 -08:00
xdiff eden/scm: cover xdiff with autocargo 2020-02-19 05:15:17 -08:00
xdiff-sys eden/scm: cover xdiff with autocargo 2020-02-19 05:15:17 -08:00
zstdelta Move fb-mercurial sources into an eden/scm subdirectory. 2019-11-13 16:04:48 -08:00
zstore zstore: implement indexedlog::DefaultOpenOptions 2019-12-06 19:35:05 -08:00
CMakeLists.txt cmake: always build support for the EdenSCM backing store 2019-11-22 13:00:07 -08:00
README.md Move fb-mercurial sources into an eden/scm subdirectory. 2019-11-13 16:04:48 -08:00

README.md

lib

Any native code (C/C++/Rust) that Mercurial (either core or extensions) depends on should go here. Python code, or native code that depends on Python code (e.g. #include <Python.h> or use cpython) is disallowed.

As we start to convert more of Mercurial into Rust, and write new paths entrirely in native code, we'll want to limit our dependency on Python, which is why this barrier exists.

See also hgext/extlib/README.md, mercurial/cext/README.mb.

How do I choose between lib and extlib (and cext)?

If your code is native and doesn't depend on Python (awesome!), it goes here.

Otherwise, put it in hgext/extlib (if it's only used by extensions) or mercurial/cext (if it's used by extensions or core).