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Krzesimir Nowak 862e6ecdcc libostree: Variant-related leak plugs and fixes 
This tries to avoid leaking GVariantBuilders and GVariants in some
situations. The leaks were usually happening when some error occurred
or because of unclear variant ownership situation.

The former is mostly about making sure that g_variant_builder_clear is
called on builders that didn't finish their variant building process.

The latter is surely more work - sometimes the result of
g_variant_builder_end() should not be passed directly to a function,
but rather stored in a g_autoptr(GVariant), sunk and then passed to a
function. IMO, with an advent of g_autoptr, GVariants should be always
sunk instead of relying on some receiver function sinking it. This
would make an easy-to-follow policy of always sinking your
variants. Functions could then assume that the passed variant is
already sunk. These leaks are still happenning in commands, but they
are less harmful, since that code will not be used by some daemon as a
library routine.

Closes: #291
Approved by: cgwalters
 		2016-05-12 11:17:09 +00:00
apidoc repo: Allow using options for fetching summary 2016-05-10 13:47:36 +00:00
bsdiff@1edf9f6568 bsdiff: change submodule location 2015-03-26 23:33:07 +01:00
build-aux Add infrastructure for "make syntax-check" 2015-01-30 15:27:36 +01:00
buildutil tap-test: clean up temporary test directories as intended 2016-03-31 14:22:06 +00:00
contrib/golang contrib: indent golang code using only tabs instead of both tabs and spaces 2016-04-07 12:25:24 +00:00
docs small cleanups 2016-04-08 18:43:18 +00:00
libglnx@3d162e772d libglnx porting: Migrate to glnx_stream_fstat() 2016-05-06 14:29:59 +00:00
man ot-builtin-commit.c: add --skip-list option 2016-05-06 14:44:55 +00:00
manual-tests Fix make syntax-check 2016-03-01 10:08:25 -05:00
packaging build: Introduce --with-dracut=yesbutnoconf 2016-05-01 10:25:19 +00:00
src libostree: Variant-related leak plugs and fixes 2016-05-12 11:17:09 +00:00
tests OstreeRepo: add extensions directory 2016-05-09 14:43:16 +00:00
.gitmodules bsdiff: change submodule location 2015-03-26 23:33:07 +01:00
.travis.yml Remove empty new lines at the EOF 2016-04-07 12:25:24 +00:00
CONTRIBUTING.md Rewrite manual in mkdocs 2016-01-28 09:31:37 -05:00
COPYING COPYING: Update to latest FSF with current address 2014-01-16 10:22:30 -05:00
GNUmakefile Add infrastructure for "make syntax-check" 2015-01-30 15:27:36 +01:00
Makefile-boot.am build: Introduce --with-dracut=yesbutnoconf 2016-05-01 10:25:19 +00:00
Makefile-decls.am Use git.mk 2016-04-07 12:49:40 +00:00
Makefile-libostree-defines.am build: ostree-gpg-verify-result.h is a public header, install it 2015-03-20 10:56:23 -04:00
Makefile-libostree.am deploy: Handle a read-only /boot 2016-03-21 12:49:05 -04:00
Makefile-man.am admin: Add an `unlock` command, and libostree API 2016-03-23 11:09:09 -04:00
Makefile-ostree.am admin: Add an `unlock` command, and libostree API 2016-03-23 11:09:09 -04:00
Makefile-otutil.am libotutil: Establish a place for GPG utilities 2015-05-01 10:20:34 -04:00
Makefile-switchroot.am Add support for mkinitcpio 2013-10-24 14:27:49 -04:00
Makefile-tests.am ot-builtin-commit.c: add --skip-list option 2016-05-06 14:44:55 +00:00
Makefile.am build: Use --std=gnu99 2016-05-06 16:49:35 +00:00
README-historical.md README: Just link to wiki, move most of it to README-historical.md 2014-01-20 18:00:09 -05:00
README.md docs: Cleanup Markdown 2016-03-16 15:02:18 -04:00
TODO Fix repeated words. 2015-01-30 15:27:36 +01:00
autogen.sh build: Make gtk-doc optional 2015-06-29 16:08:51 -04:00
cfg.mk small cleanups 2016-04-08 18:43:18 +00:00
configure.ac build: Introduce --with-dracut=yesbutnoconf 2016-05-01 10:25:19 +00:00
git.mk Use git.mk 2016-04-07 12:49:40 +00:00
maint.mk tests: prefix invocation of ostree with where missing 2015-11-16 11:07:55 +01:00
mkdocs.yml docs: Add a section on repository management 2016-03-29 14:10:24 +00:00
ostree.doap doap category infrastructure 2014-07-31 11:26:32 +02:00

README.md

OSTree

New! See the docs online at Read The Docs (OSTree)

OSTree is a tool that combines a "git-like" model for committing and downloading bootable filesystem trees, along with a layer for deploying them and managing the bootloader configuration.

OSTree is like git in that it checksums individual files and has a content-addressed-object store. It's unlike git in that it "checks out" the files via hardlinks, and they should thus be immutable. Therefore, another way to think of OSTree is that it's just a more polished version of Linux VServer hardlinks.

Features:

  • Atomic upgrades and rollback for the system
  • Replicating content incrementally over HTTP via GPG signatures and "pinned TLS" support
  • Support for parallel installing more than just 2 bootable roots
  • Binary history on the server side (and client)
  • Introspectable shared library API for build and deployment systems

This last point is important - you should think of the OSTree command line as effectively a "demo" for the shared library. The intent is that package managers, system upgrade tools, container build tools and the like use OSTree as a "deduplicating hardlink store".

Projects using OSTree

rpm-ostree is a tool that uses OSTree as a shared library, and supports committing RPMs into an OSTree repository, and deploying them on the client. This is appropriate for "fixed purpose" systems. There is in progress work for more sophisticated hybrid models, deeply integrating the RPM packaging with OSTree.

Project Atomic uses rpm-ostree to provide a minimal host for Docker formatted Linux containers. Replicating a base immutable OS, then using Docker for applications meshes together two different tools with different tradeoffs.

xdg-app uses OSTree for desktop application containers.

GNOME Continuous is a custom build system designed for OSTree, using OpenEmbedded in concert with a custom build system to do continuous delivery from hundreds of git repositories.

Building

Releases are available as GPG signed git tags, and most recent versions support extended validation using git-evtag.

However, in order to build from a git clone, you must update the submodules. If you're packaging OSTree and want a tarball, I recommend using a "recursive git archive" script. There are several available online; this code in OSTree is an example.

Once you have a git clone or recursive archive, building is the same as almost every autotools project:

env NOCONFIGURE=1 ./autogen.sh
./configure --prefix=...
make
make install DESTDIR=/path/to/dest

More documentation

New! See the docs online at Read The Docs (OSTree)

Some more information is available on the old wiki page: https://wiki.gnome.org/Projects/OSTree

Contributing

See Contributing.