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d274e96880
sapling/eden/scm/lib
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Stefan Filip d274e96880 manifest: add the diff method to the Manifest trait 
Summary:
Diff is a core operation for manifests. The Manifest trait should require that
it is implemented.

Reviewed By: quark-zju

Differential Revision: D18843132

fbshipit-source-id: 5e3febab669470e266878d934561dfc323b71c7f
2019-12-06 14:32:59 -08:00
..
asyncrevisionstore/src Switch from failure::Fail trait to std::error::Error for errors 2019-11-22 08:53:31 -08:00
auth Switch from failure::Fail trait to std::error::Error for errors 2019-11-22 08:53:31 -08:00
backingstore minor clean up to HgNativeBackingStore 2019-11-22 13:00:07 -08:00
blackbox Switch from failure::Fail trait to std::error::Error for errors 2019-11-22 08:53:31 -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 Switch from failure::Fail trait to std::error::Error for errors 2019-11-22 08:53:31 -08:00
cliparser Switch from failure::Fail trait to std::error::Error for errors 2019-11-22 08:53:31 -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 Move fb-mercurial sources into an eden/scm subdirectory. 2019-11-13 16:04:48 -08:00
configparser Switch from failure::Fail trait to std::error::Error for errors 2019-11-22 08:53:31 -08:00
cpython-ext Switch from failure::Fail trait to std::error::Error for errors 2019-11-22 08:53:31 -08:00
cpython-failure Move fb-mercurial sources into an eden/scm subdirectory. 2019-11-13 16:04:48 -08:00
dag dag: add IdMapLike for minimal IdMap interface 2019-12-05 17:01:13 -08:00
drawdag Move fb-mercurial sources into an eden/scm subdirectory. 2019-11-13 16:04:48 -08:00
edenapi Switch from failure::Fail trait to std::error::Error for errors 2019-11-22 08:53:31 -08:00
encoding Move fb-mercurial sources into an eden/scm subdirectory. 2019-11-13 16:04:48 -08:00
hgcommands commands: avoid infinite loop when collecting process tree info 2019-11-27 11:04:30 -08:00
hgtime Move fb-mercurial sources into an eden/scm subdirectory. 2019-11-13 16:04:48 -08:00
indexedlog Switch from failure::Fail trait to std::error::Error for errors 2019-11-22 08:53:31 -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 the diff method to the Manifest trait 2019-12-06 14:32:59 -08:00
metalog metalog: add is_dirty API 2019-11-27 00:24:09 -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
mpatch Move fb-mercurial sources into an eden/scm subdirectory. 2019-11-13 16:04:48 -08:00
mpatch-sys Move fb-mercurial sources into an eden/scm subdirectory. 2019-11-13 16:04:48 -08:00
mutationstore Switch from failure::Fail trait to std::error::Error for errors 2019-11-22 08:53:31 -08:00
nodemap Switch from failure::Fail trait to std::error::Error for errors 2019-11-22 08:53:31 -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 Switch from failure::Fail trait to std::error::Error for errors 2019-11-22 08:53:31 -08:00
revisionstore Switch from failure::Fail trait to std::error::Error for errors 2019-11-22 08:53:31 -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
tracing-collector Move fb-mercurial sources into an eden/scm subdirectory. 2019-11-13 16:04:48 -08:00
treestate Switch from failure::Fail trait to std::error::Error for errors 2019-11-22 08:53:31 -08:00
types Switch from failure::Fail trait to std::error::Error for errors 2019-11-22 08:53:31 -08:00
util Switch from failure::Fail trait to std::error::Error for errors 2019-11-22 08:53:31 -08:00
vlqencoding Move fb-mercurial sources into an eden/scm subdirectory. 2019-11-13 16:04:48 -08:00
workingcopy Switch from failure::Fail trait to std::error::Error for errors 2019-11-22 08:53:31 -08:00
xdiff Merge fb-mercurial sources into the eden repository 2019-11-13 20:20:32 -08:00
xdiff-sys Move fb-mercurial sources into an eden/scm subdirectory. 2019-11-13 16:04:48 -08:00
zstdelta Move fb-mercurial sources into an eden/scm subdirectory. 2019-11-13 16:04:48 -08:00
zstore Move fb-mercurial sources into an eden/scm subdirectory. 2019-11-13 16:04:48 -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).