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Mark Thomas f337e0d5e4 sampling: fail gracefully when ui.log arguments are not a valid format 
Summary:
`ui.log` expects to be called with valid format arguments.  If the arguments
are not a valid format string, or the number of arguments doesn't match the
number of format placeholders, formatting will fail.

In this case, catch the exception and fail gracefully.  Don't even bother
formatting if there is exactly one argument.

The `blackbox` extension already does this, so extend to the `sampling`
extension.

Also fix the place where `perftrace` calls `ui.log` with a string that might
contain formatting placeholders.

Reviewed By: quark-zju

Differential Revision: D14938952

fbshipit-source-id: 1d9802308dba925109c018124d51273c348526b4
2019-04-16 01:21:55 -07:00
contrib setup: rebuild libchg.a if versionhash has changed 2019-03-21 11:23:56 -07:00
distutils_rust distutils_rust: fix typo in error message 2019-03-27 15:37:39 -07:00
doc gendoc: import extensions properly 2019-01-30 14:57:42 -08:00
edenscm sampling: fail gracefully when ui.log arguments are not a valid format 2019-04-16 01:21:55 -07:00
exec hg.rust: add BuildInfo symbols 2019-03-20 23:44:10 -07:00
i18n codemod: import from the edenscm package 2019-01-29 17:25:32 -08:00
lib types: add DataEntry type 2019-04-15 17:32:44 -07:00
newdoc newdoc: revise WritingExtensions 2019-03-14 11:51:39 -07:00
slides slides: fix check-code 2019-04-15 20:34:44 -07:00
tests sampling: fail gracefully when ui.log arguments are not a valid format 2019-04-16 01:21:55 -07:00
.editorconfig move scm/hg/.clang-format to scm/hg/mercurial/ 2018-05-25 14:35:51 -07:00
.flake8 codemod: join the auto-formatter party 2018-05-25 22:17:29 -07:00
.gitignore ignore: stop using "{}" patterns 2019-02-06 13:02:59 -08:00
.hgsigs Added signature for changeset f51ae48a3fd9 2017-12-01 13:49:47 -06:00
.jshintrc hgweb: add .jshintrc with some basic rules 2017-11-22 22:18:06 +08:00
CONTRIBUTING contributing: add new file with a pointer to the wiki 2016-10-08 10:39:00 -04:00
CONTRIBUTORS Add note to CONTRIBUTORS file 2007-11-07 21:10:30 -06:00
COPYING COPYING: refresh with current address from fsf.org 2011-06-02 11:17:02 -05:00
gen_version.py generate __version__.py during the buck build 2018-06-25 15:52:25 -07:00
hg codemod: move Python packages to edenscm 2019-01-28 18:35:41 -08:00
hgeditor spelling: trivial spell checking 2015-10-17 00:58:46 +02:00
hgweb.cgi codemod: import from the edenscm package 2019-01-29 17:25:32 -08:00
Makefile chg: remove the ability to produce an actual binary 2019-03-14 06:35:45 -07:00
README.rst doc: rename README to README.rst 2017-09-26 08:37:17 +02:00
setup.py build: set cargo target dir using config file 2019-03-27 10:16:51 -07:00

README.rst 

Mercurial
=========

Mercurial is a fast, easy to use, distributed revision control tool
for software developers.

Basic install::

 $ make            # see install targets
 $ make install    # do a system-wide install
 $ hg debuginstall # sanity-check setup
 $ hg              # see help

Running without installing::

 $ make local      # build for inplace usage
 $ ./hg --version  # should show the latest version

See https://mercurial-scm.org/ for detailed installation
instructions, platform-specific notes, and Mercurial user information.