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Kir Kolyshkin f53189c520 compel cli: print usage to stderr in case of error 
This is mainly dictated by the fact that we use stdout
from "compel *flags" in a special way, so it should not
be garbled by the usage info.

Otherwise, for example, the following code in Makefile

	CFLAGS += $(shell compel --badopt cflags)

will lead to the whole usage() output to be added to compiler flags,
which looks really really weird.

travis-ci: success for More polishing for compel cli
Signed-off-by: Kir Kolyshkin <kir@openvz.org>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
2017-03-15 00:09:55 +03:00
compel compel cli: print usage to stderr in case of error 2017-03-15 00:09:55 +03:00
contrib scripts/install-debian-packages: add libnet-dev 2017-01-16 11:04:49 +03:00
coredump coredump: Rename dir to coredump 2016-06-28 13:04:58 +03:00
crit crit/decode: set default opts['nopl'] to False 2016-05-30 13:47:54 +03:00
criu compel cli: kill --arch option, add --compat 2017-03-15 00:09:55 +03:00
Documentation .gitignore: update to recent changes 2017-03-14 21:03:22 +03:00
images criu: arch, x86 -- Rename registers mode 2017-03-14 23:58:07 +03:00
include/common x86/asm: move user code selector values to common 2017-03-15 00:06:17 +03:00
lib Makefiles: move -Wa,--noexecstack out of CFLAGS 2017-03-15 00:05:55 +03:00
scripts compel hgen: use for ARM, kill gen-offsets.sh 2017-03-15 00:06:17 +03:00
soccr soccr: add one more test to check libsoccr_save/libsoccr_restore 2017-02-01 18:41:29 +03:00
test gitignores: ignore some more generated files 2017-03-15 00:05:55 +03:00
.gitignore criu/pie: drop second compat parasite 2017-03-15 00:06:18 +03:00
.mailmap repo: Add mailmap file 2012-03-25 23:31:20 +04:00
.travis.yml travis: execute tests on Alpine 2017-03-02 00:19:03 +03:00
COPYING COPYING: fix a typo in a preamble 2016-08-11 16:18:43 +03:00
CREDITS Add the CREDITS file 2012-07-30 13:52:37 +04:00
INSTALL.md Makefile.install: rm unused vars/target 2017-02-06 13:48:49 +03:00
Makefile compel cli: kill --arch option, add --compat 2017-03-15 00:09:55 +03:00
Makefile.compel compel: Add installation 2017-03-15 00:06:13 +03:00
Makefile.config x86: enable compatible 32 C/R back 2017-03-15 00:09:53 +03:00
Makefile.install compel: Add installation 2017-03-15 00:06:13 +03:00
Makefile.versions compel: build -- Add @sublevel 2017-03-14 23:58:08 +03:00
README.md Add ascciinema tour on basic criu features. 2016-06-16 16:37:06 +03:00

README.md

CRIU (Checkpoint and Restore in Userspace)

An utility to checkpoint/restore tasks. Using this tool, you can freeze a running application (or part of it) and checkpoint it to a hard drive as a collection of files. You can then use the files to restore and run the application from the point it was frozen at. The distinctive feature of the CRIU project is that it is mainly implemented in user space.

The project home is at http://criu.org.

Pages worth starting with are:

A video tour on basic CRIU features

CRIU introduction

How to contribute