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I'd mostly been avoiding this file since there's always patches outstanding, but
these few functions shouldn't conflict much.
Closes: #979
Approved by: jlebon
I added `glnx_open_anonymous_tmpfile()`, but then later noticed
that the usage of this was really to be combined with `mmap()`,
and we had two versions of that in the delta code. Add a helper.
(Bigger picture...how is this different from glibc's "mmap() of /dev/zero"
approach for large chunks? One advantage is the storage can be "swapped" to
`/var/tmp`, but still deleted automatically, rather than requiring swap space)
Closes: #973
Approved by: jlebon
Use the new macros introduced recently in libglnx to make iterating over
hash tables cleaner. This is just a start, it does not migrate the whole
tree.
Update submodule: libglnx
Closes: #971
Approved by: cgwalters
There's lots of mechanically replacing `OtTmpFile` with `GLnxTmpfile`;
the biggest changes are in the commit path. Symlink commits are now
very clearly separated from regular files. Symlinks are `OtCleanupUnlinkat`,
and regular files are `GLnxTmpfile`.
The commit codepath separates those as `_ostree_repo_commit_path_final()` and
`_ostree_repo_commit_tmpf_final()`. A nice aspect of all of this is that they
both *consume* the temporary on success. This avoids an extra spurious
`unlink()` call.
One of the biggest bits of code motion is in `commit_loose_regfile_object()`,
which no longer needs to care about symlinks. For the most parth though it's
just removing conditionals.
Update submodule: libglnx
Closes: #958
Approved by: jlebon
Rather than duplicating the code. This introduces no functional changes.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Closes: #961
Approved by: cgwalters
Check that it’s in normal form and has the correct type when loading it,
since it could come from an untrusted source.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Closes: #961
Approved by: cgwalters
This makes no difference to the validity of the code, since any summary
file loaded from the cache will be verified before being read anyway;
but it will make some upcoming changes a little simpler.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Closes: #961
Approved by: cgwalters
When updating a summary file, parse additional arguments to the `ostree
summary` command as additional metadata to be put into the summary.
Add some tests for this.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Closes: #961
Approved by: cgwalters
Previously the spurious ‘update’ atom was ignored; now that `ostree
summary --update` accepts extra arguments as additional metadata, it’s
causing an error. Drop it.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Closes: #961
Approved by: cgwalters
Computing download/storage size for `archive` pulls is hard; there's
`OSTREE_REPO_COMMIT_MODIFIER_FLAGS_GENERATE_SIZES` which was from a
pre-static-deltas effort by Endless, but we aren't currently making use of this
much.
Static deltas were designed to solve this problem; we have the total
uncompressed size. Let's check free space before doing a delta pull.
Related: https://github.com/ostreedev/ostree/issues/962Closes: #963
Approved by: jlebon
The `OstreeRepoContentBareCommit` struct was basically an `OtTmpFile`, so let's
make it one. I moved the "convert to `GOutputStream`" logic into the callers,
since that bit can't fail; it makes the implementation much simpler since we can
just return the result of `ot_open_tmpfile_linkable_at()`.
Prep for `GLnxTmpfile` porting.
Closes: #957
Approved by: jlebon
The pull code also could make use of this in both the metadata and content
paths. I changed it to own the tempfile malloc (just like `GLnxTmpFile`), since
there's no reason to have different lifetimes for the filename and the file, and
that way we only have one variable rather than two.
The content path turns out to be a special case though, where
at least for mirroring archives, we directly pass the file *path*
down into `_ostree_repo_commit_loose_final()`.
This is prep for `GLnxTmpFile` porting.
Closes: #957
Approved by: jlebon
The variables here were duplicative; we don't need two booleans to distinguish
between symlinks and regular files. What we do need to handle is the "physical"
state versus the "object" state. Symlinks objects are stored as regular files in
`bare-user` and `archive`.
Prep for more cleanup.
Closes: #957
Approved by: jlebon
Instead of treating it as a programming error — given that it’s user
input, that’s not really appropriate. This modifies write_ref() and
list_collection_refs() to implement validation.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Closes: #924
Approved by: cgwalters
Test various pieces of core and command line utility functionality
relating to the newly-introduced concept of collections. Mostly focussed
around the find-remotes utility, and around handling of collection–refs.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Closes: #924
Approved by: cgwalters
These utilities were not needed for the initial port to support
OstreeCollectionRef, so have been delayed a bit and, in some cases, left
as FIXME comments for follow up later.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Closes: #924
Approved by: cgwalters
If a repository’s summary file includes a collection ID, output that. If
it includes refs from other collections (in the ‘collection map’), output
those and include the same metadata detail as for refs in the summary
file’s main refs map.
If collection IDs are specified in the summary file, this changes the
output format from `ostree summary -v` to use (collection ID, ref name)
tuples.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Closes: #924
Approved by: cgwalters
Rather than change the output format used by the existing refs command
to output collection IDs in addition to ref names, this functionality has
been hidden behind an --collections argument. If it’s not specified `ostree
refs` will output the same content as before for a given repository. If
it is specified, the collection ID for each ref will be included in the
output as (collection ID, ref name).
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Closes: #924
Approved by: cgwalters
This allows newly configured remotes to have their collection ID specified,
so that refs from them can be downloaded from peers as well as the
upstream collection, using the remote’s configuration.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Closes: #924
Approved by: cgwalters
This allows new repositories to be configured with a collection ID which
can be used to uniquely identify refs which originated from this
repository.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Closes: #924
Approved by: cgwalters
This will pull the remotes after finding them. This potentially needs to
go in its own pull-from-remotes built-in command, but it will be fine
here for now.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Closes: #924
Approved by: cgwalters
This is a wrapper around the new ostree_repo_find_remotes() method; it
tries to find available remotes which can serve updates for the
user-provided refs.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Closes: #924
Approved by: cgwalters
This is a more complex implementation of OstreeRepoFinder which resolves
ref names to remote URIs by looking for refs advertised by peers on the
local network using DNS-SD records and mDNS (Avahi). The idea is to
allow OS and app updates to be propagated over local networks, without
the internet.
It requires an OSTree server and code to generate the DNS-SD adverts in
order to be fully functional — support for this will be added
separately.
Unit tests are included.
Includes fixes by Krzesimir Nowak <krzesimir@kinvolk.io>.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Closes: #924
Approved by: cgwalters
This will be used in an upcoming commit. It adds a basic bloom filter
implementation, using the SipHash family of hash functions.
The implementation (including its parameter choices and hash functions)
will become a protocol detail in future, so must not be changed so that
its output is bitwise incompatible between OSTree versions.
Unit tests are included.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Closes: #924
Approved by: cgwalters
This is a basic implementation of OstreeRepoFinder which resolves ref
names to remote URIs by looking for them on any currently mounted
removable storage volumes. The idea is to support OS and app updates via
USB stick.
Unit tests are included.
This bumps libostree’s maximum GLib dependency from 2.44 to 2.50 for
g_drive_is_removable(). If GLib 2.50 is not available, the call which
needs it will be omitted and the OstreeRepoFinderMount implementation
will scan all volumes (not just removable ones); this is a performance
hit, but not a functionality hit.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Closes: #924
Approved by: cgwalters
This is a basic implementation of OstreeRepoFinder which resolves ref
names to remote URIs by looking their collection IDs up in the local
configuration of remotes who have their collection-id key set.
Unit tests are included.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Closes: #924
Approved by: cgwalters
Add an initial OstreeRepoFinder interface (but no implementations),
which will find remote URIs by ref names and collection IDs, the
combination of which is globally unique.
The new API is used in a new ostree_repo_find_updates() function, which
resolves a list of ref names to update into a set of remote URIs to pull
them from, which can be treated as mirrors. It is an attempt to
generalise resolution of the URIs to pull from, and to generalise
determination of the order and parallelisation which they should be
downloaded from in.
Includes fixes by Krzesimir Nowak <krzesimir@kinvolk.io>.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Closes: #924
Approved by: cgwalters
This adds a new collection-refs option of type a(sss), giving a list of
(collection ID, ref name, checksum) tuples to pull from the given remote.
This option is intended to supersede the refs and override-commit-ids
options, so is mutually exclusive with them.
This includes support for resolving the refs from the remote’s summary
file, or from its refs/heads and refs/mirrors directories.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Closes: #924
Approved by: cgwalters
These are tuples of (collection ID, ref name) which are a globally-unique
form of local ref. They use OstreeCollectionRef as an identifier, and hence
need to be accessed using new API, as the existing API uses string
identifiers and sometimes accepts refspecs. Remote names are not
supported as part an OstreeCollectionRef.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Closes: #924
Approved by: cgwalters
Add {get,set}_collection_id() methods to OstreeRepo and some documentation
about the concept of a collection ID which globally identifies an
upstream repository. See the documentation for more details.
This will be used in future commits. For now, the new API is marked as
experimental (--enable-experimental-api).
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Closes: #924
Approved by: cgwalters
This is a type representing the tuple (collection ID, ref name), which is
guaranteed to be globally unique. It will be used in upcoming commits.
It introduces the concept of a ‘collection’ which is a unique, curated
set of refs which lie in the same trust domain (i.e. all signed by the
same key and validated by the same developer). Flathub might be a
collection, for example; or the set of OS refs coming from a particular
OS vendor.
It includes a function for validating collection IDs.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Closes: #924
Approved by: cgwalters
This will make some future additions to regenerate_summary() easier.
This commit introduces no functional changes.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Closes: #924
Approved by: cgwalters
This is followon work from previous cleanups. Basically
`stat_bare_content_object()` was the `fstatat()` logic
and `ostree_repo_read_bare_fd()` was the `openat()` implementation;
they duplicated some bits to find the object in staging, recurse
into parent etc.
Further, I wanted an internal-only version of this API which didn't allocate
`GFileInfo`/`GInputStream` but used a plain `fd` and `struct stat` to avoid
mallocs.
The end version here I think looks a lot nicer, since we deduplicate the various
`open()` calls in the different cases for example.
Closes: #952
Approved by: jlebon
