Commit Graph

65 Commits

Author SHA1 Message Date
Colin Walters
0f3bccf640 pull: Cleanly error out on unknown schemes
Previous to this we'd trip an assertion `abort()` deep in the curl code if e.g.
a user did `ostree remote add foo htttp://...` etc.

Motivated by considering supporting "external remotes" where code outside
ostree does a pull, but we want to reuse the signing verification infrastructure.
2021-04-27 13:11:18 -04:00
Colin Walters
cb0fd2bf93 tests/pull-test: Use mv -f in a few cases
For some reason I'm hitting this locally because some files are mode `0`.
Which is clearly a different bug but anyways we don't want to prompt.
2021-03-31 15:11:34 -04:00
Alexander Larsson
bc924ff870 tests: Add a testcase to ensure we're not using the summary if we don't need it
With deltas outside the summary, if a commit is specified when pulling
we don't download the summary. Verify this.
2020-10-23 13:55:33 +02:00
OpenShift Merge Robot
12a9161a79
Merge pull request #2152 from cgwalters/pull-fdatasync
pull: Add --per-object-fsync
2020-07-20 13:55:26 -04:00
Colin Walters
a615d35762 pull: Add --per-object-fsync
This is the opposite of
https://github.com/ostreedev/ostree/issues/1184

Motivated by OpenShift seeing etcd performance issues during
OS updates: https://github.com/openshift/machine-config-operator/issues/1897

Basically, if we switch to invoking `fsync()` as we go, it makes
ostree performance worse (in my tests, 31s to write 2G versus 7s if we
delay sync) but it avoids *huge* outliers in `fsync()` time for etcd.
2020-07-18 14:59:01 +00:00
Colin Walters
5b75358357 pull: Also append bytes written
This is very useful information that we get from the transaction
stats.  Append it to the final display if we're not inheriting
the transaction.
2020-07-17 17:03:08 +00:00
Jonathan Lebon
c8efce0656 lib/pull: Add timestamp-check-from-rev
The way `timestamp-check` works might be too restrictive in some
situations. Essentially, we need to support the case where users want to
pull an older commit than the current tip, but while still guaranteeing
that it is newer than some even older commit.

This will be used in Fedora CoreOS. For more information see:
https://github.com/coreos/rpm-ostree/pull/2094
https://github.com/coreos/fedora-coreos-tracker/issues/481
2020-05-14 14:00:42 -04:00
Denis Pynkin
68aa13550a tests: use option "--no-sign-verify" for adding remote
Option "--no-sign-verify" disable the signature verification including
GPG. So use it in tests instead of "--no-gpg-verification".

Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
2020-03-25 15:23:54 +03:00
Alex Kiernan
fb519f0361 tests: Handle EPIPE failures when head terminates
When using musl, it appears that the default is line buffered output, so
when `head -1` reads from a pipe we have to handle the source end of the
pipe getting EPIPE.

Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
2019-11-01 05:05:53 +00:00
Denis Pynkin
3767d87107 tests/gpg: fix GPG-dependent shell tests if no GPG support
Skip tests or run them without GPG-related functionality if GPGME
wasn't enabled in a build time.

Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>

Closes: #1889
Approved by: cgwalters
2019-08-01 02:06:47 +00:00
Jonathan Lebon
9332830e09 lib/pull: Allow downgrade protection with overrides
There's a valid use case for enabling the timestamp downgrade check
while still also using override commits.

We'll make use of this in Fedora CoreOS, where the agent specifies the
exact commit to upgrade to, while still enforcing that it be newer.

Closes: #1891
Approved by: cgwalters
2019-07-29 13:58:29 +00:00
Jeremy Bicha
1ec4945c2d tests: Update for glib 2.59.2
glib 2.59.2 uses a non-breaking space instead of a space to
separate the quantity and unit in g_format_size() so update
our test to handle both a plain space and a non-breaking space.

See https://gitlab.gnome.org/GNOME/glib/issues/1625

Closes: #1818
Approved by: cgwalters
2019-02-11 13:26:32 +00:00
Marcus Folkesson
6bf4b3e1d8 Add SPDX-License-Identifier to source files
SPDX License List is a list of (common) open source
licenses that can be referred to by a “short identifier”.
It has several advantages compared to the common "license header texts"
usually found in source files.

Some of the advantages:
* It is precise; there is no ambiguity due to variations in license header
  text
* It is language neutral
* It is easy to machine process
* It is concise
* It is simple and can be used without much cost in interpreted
  environments like java Script, etc.
* An SPDX license identifier is immutable.
* It provides simple guidance for developers who want to make sure the
  license for their code is respected

See http://spdx.org for further reading.

Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>

Closes: #1439
Approved by: cgwalters
2018-01-30 20:03:42 +00:00
Colin Walters
8e6e64a5ad lib: Validate metadata structure more consistently during pull
Previously we were doing e.g. `ot_util_filename_validate()` specifically inline
in dirtree objects, but only *after* writing them into the staging directory (by
default). In (non-default) cases such as not using a transaction, such an object
could be written directly into the repo.

A notable gap here is that `pull-local --untrusted` was *not* doing
this verification, just checksums.  We harden that (and also the
static delta writing path, really *everything* that calls
`ostree_repo_write_metadata()` to also do "structure" validation
which includes path traversal checks.  Basically, let's try hard
to avoid having badly structured objects even in the repo.

One thing that sucks in this patch is that we need to allocate a "bounce buffer"
for metadata in the static delta path, because GVariant imposes alignment
requirements, which I screwed up and didn't fulfill when designing deltas. It
actually didn't matter before because we weren't parsing them, but now we are.
In theory we could check alignment but ...eh, not worth it, at least not until
we change the delta compiler to emit aligned metadata which actually may be
quite tricky.  (Big picture I doubt this really matters much right now
but I'm not going to pull out a profiler yet for this)

The pull test was extended to check we didn't even write a dirtree
with path traversal into the staging directory.

There's a bit of code motion in extracting
`_ostree_validate_structureof_metadata()` from `fsck_metadata_object()`.

Then `_ostree_verify_metadata_object()` builds on that to do checksum
verification too.

Closes: #1412
Approved by: jlebon
2018-01-12 19:38:34 +00:00
Colin Walters
2b78df25f4 tests: Add a test case for path traversal in a dirtree
I was reading about a recent security issue with both EMC and VMWare:
https://arstechnica.com/information-technology/2018/01/emc-vmware-security-bugs-throw-gasoline-on-cloud-security-fire/

It's a classic path traversal problem, and that made me think more about our
handling of this in libostree.  Fortunately of course, not being new to
this rodeo, long ago I *did* consider path traversal.  Inside the pull
code, we call `ot_util_filename_validate()`.  Also, `fsck` does this too.

I have further followups here, but let's add some test cases for this. I crafted
a repository with a `../` in a dirtree object by patching libostree to inject
it, and that's included as a tarball.

This patch covers the two cases where we do already have checks; pulling
via HTTP, and in `fsck`.

Closes: #1412
Approved by: jlebon
2018-01-12 19:38:34 +00:00
Colin Walters
73d910e82e Add public API for fsck, use it before loading metadata
A while ago I did `truncate -s 0 /path/to/repo/00/123.commit`, and expected a
checksum error, but I actually got a validation error due to us loading the
commit into a variant and trying to parse out the parent checksum, etc.

I first started by changing the `load_and_fsck_one_object()` function to
checksum before loading, but the problem is that we do a traverse of all objects
first. Fixing this is going to require an `OSTREE_REPO_COMMIT_TRAVER_FLAG_FSCK`
or something.

In the meantime at least though, let's add a public API to fsck a single object
which *does* checksum cleanly before parsing the object, and change the `fsck`
command to use it.

We then change the fsck binary to do this while iterating over the refs
and finding the commit object.  This way we'll at least get a checksum
first for commit objects, even if not dirtree/dirmeta.

Closes: #1364
Approved by: jlebon
2017-12-12 14:03:09 +00:00
Colin Walters
015513b8f9 lib/pull: Avoid error if current with --require-static-deltas
A tricky thing here that caused this to go past a lot of our tests
is that the code was mostly OK if there was an available delta from
an older commit.  But this case broke if we e.g. had a new OS
deployment and did a `--require-static-deltas` pull, i.e. the initial
state.

I cleaned up our "find static delta state" function to return an enumeration,
and extended it with an "already have the commit" state.  A problem
I then hit is that we've historically fetched detached metadata for
non-delta pulls, even if the commit hasn't changed.  I decided not to
do that for `--require-static-deltas` pulls for now; otherwise the
code gets notably more complex.

Closes: https://github.com/ostreedev/ostree/issues/1321

Closes: #1323
Approved by: jlebon
2017-11-06 19:41:07 +00:00
Colin Walters
80ff73ba26 lib/pull: When --require-static-deltas, use them even for file:/// repos
I didn't fully spelunk this, but from what `static-delta-generate-crosscheck.sh`
had, we appeared to be doing this before, and it's clearly useful for local
testing rather than needing to spin up a HTTP server.

Closes: #1313
Approved by: jlebon
2017-10-31 14:20:20 +00:00
Colin Walters
95afe2848d tests: Add test-pull-bareuseronly
I was going to fix a bug in the static deltas code and I noticed
we were missing `pull-test.sh` coverage for bareuseronly 🙈.

Obviously fixing this requires duplicating some of the bits we have in
`basic-test.sh`; need to hoist that into `libtest.sh`. For now though let's get
the coverage.

Closes: #1270
Approved by: jlebon
2017-10-17 15:20:08 +00:00
Colin Walters
b8c15ae859 lib/pull: Fix regression with pull-local for nonexistent refs
I was reading the pull code for the last release, and spotted
a bug in commit f923c2e1ea - in
the case where the ref doesn't exist, we don't set an error,
tripping an assertion in the main code.

The previous code wanted the ref to always exist, so just flip back the boolean
for "ignore noent". I moved the `g_strchomp()` just into the HTTP path - if a
local repo is corrupted in this way it's something to fix in that repo.

Closes: #1238
Approved by: pwithnall
2017-10-02 16:02:28 +00:00
Colin Walters
15096ac49e tests: Add 404 tests for dirtree objects too
I now believe the flatpak issue we were hitting was
https://github.com/ostreedev/ostree/pull/1185
but let's add these tests anyways for more coverage.

Closes: #888
Approved by: jlebon
2017-09-28 13:05:55 +00:00
Colin Walters
c6f972406e lib/pull: Add status for imported objects
Followup for recent work in commits:

 - 8a7a359709
 - 1a9a473580

Keep track of how many objects we imported, and print that for `ostree
pull-local` (also do this even if noninteractive, like we did for `pull`).

In implementing this at first I used separate variables for import
from repo vs import from localcache, but that broke some of the
tests that checked those values.

It's easier to just merge them; we know from looking at whether or not
`remote_repo_local` is set whether or not we were doing a "HTTP pull with
localcache" versus a true `pull-local` and can use that when rendering status.

Closes: #1219
Approved by: jlebon
2017-09-27 15:35:11 +00:00
Philip Withnall
f923c2e1ea src/pull: Support local pulls for collection–refs
Previously, collection–refs could only be pulled from a repository if it
had a summary file (which listed them). There was no way to pull from a
local repository which doesn’t have a summary file, and where the refs
were stored as refs/remotes/$remote/$ref, with a config section linking
that $remote to the queried collection ID.

Fix that by explicitly supporting pull_data->remote_repo_local in
fetch_ref_contents().

Signed-off-by: Philip Withnall <withnall@endlessm.com>

Closes: #1182
Approved by: cgwalters
2017-09-27 14:44:00 +00:00
Colin Walters
25a7c4bd4e lib/pull: Default checksum for archive mirror, add TRUSTED_HTTP flag
I now think commit fab1e113db was a mistake;
because it breaks the mental model that at least I'd built up that "local repos
don't have checksums verified, HTTP does".

For example, a problem with this is (with that mental model in place) it's easy
for people who set up mirrors like this to then do local pulls, and at that
point we've done a deployment with no checksum verification.

Further, since then we did PR #671 AKA commit 3d38f03 which is really most of
the speed hit.

So let's switch the default even for this case to doing checksum verification,
and add `ostree pull --http-trusted`. People who are in situations where they
know they want this can find it and turn it on.

Closes: https://github.com/ostreedev/ostree/issues/1211

Closes: #1212
Approved by: jlebon
2017-09-26 18:07:43 +00:00
Colin Walters
160864d557 lib: Move bareuseronly verification into commit/core
Conceptually `ostree-repo-pull.c` should be be written using
just public APIs; we theoretically support building without HTTP
for people who just want to use the object store portion and
do their own fetching.

We have some nontrivial behaviors in the pull layer though; one
of those is the "bareuseronly" verification.  Make a new internal
API that accepts flags, move it into `commit.c`.  This
is prep for further work in changing object import to support
reflinks.

Closes: #1193
Approved by: jlebon
2017-09-21 19:14:59 +00:00
Colin Walters
618617d68b lib/pull: Add support for timestamp-check option, use in upgrader
For both flatpak and ostree-as-host, we really want to verify up front during
pulls that we're not being downgraded. Currently both flatpak and
`OstreeSysrootUpgrader` do this before deployments, but at that point we've
already downloaded all the data, which is annoying.

Closes: https://github.com/ostreedev/ostree/issues/687

Closes: #1055
Approved by: jlebon
2017-08-21 18:24:07 +00:00
Colin Walters
48f8f32921 bin/pull: Fix @ override syntax when pulling multiple refs
Coverity spotted an infloop here since we were incrementing `i++`
instead of `j++`.  But adding a test revealed other bugs - we need
to keep the arrays in sync.

Coverity CID: 1452204

Closes: #1041
Approved by: pwithnall
2017-08-07 16:10:08 +00:00
Colin Walters
c740b7f6d2 core: Sanitize error text validating refs (e.g. against HTML)
See: https://github.com/projectatomic/rpm-ostree/issues/885

If we get a successful Apache directory listing HTML when fetching what we
intend to be a ref, we'd dump the HTML into the error.

I did some scanning of the pull code, and this was the only case
I saw offhand where we were dumping text out into an error.  Which
makes sense, since most of our formats are binary, the exeptions I
think are just `repo/config` and `repo/refs/`.

Closes: #1015
Approved by: mbarnes
2017-07-19 14:45:57 +00:00
Colin Walters
0aa20df20e tests: Run pull tests for bare/bare-user
We have variants of `test-basic` for all 4 modes, but not for pull-test, which
for some reason was named `pull-archive`, but mostly pulls *into* bare repos.
The test code was structured like the basic one where it called into a
`pull-test.sh`, so let's actually use it for 2/3 bare modes. (I tried to extend
it to `bare-user-only` but it failed, going to look at that after this).

This is related to https://github.com/ostreedev/ostree/issues/991

Closes: #998
Approved by: jlebon
2017-07-10 14:18:18 +00:00
Colin Walters
3234295324 pull: Cleanly error when doing local pulls of remote-prefixed refs
In the storage PR I was trying to do a `pull-local` of the whole
`/ostree/repo` on the system, which ended up triggering a `g_critical()`
in the collections code, since we tried to parse a remote-prefixed ref
`fedora:fedora/26/x86_64/atomic-host` as a ref.

I'm not sure offhand what our behavior in this case *should* be.  I
think git only clones local refs, but I need to check.

This corner case arises only with `pull-local`.  But in any case,
while we were previously saying this is programmer error, since it's
so easy to pass various unchecked input into the pull machinery,
make invalid refs an explicit error.

Closes: #992
Approved by: jlebon
2017-07-05 13:37:22 +00:00
Colin Walters
1a9a473580 cmdline/pull: Print final status even if noninteractive
Previously, `ostree pull` was silent if not on a tty.  I don't
see a reason not to print the final status line at least.  This
is prep for more work in the test suite, so I can write assertions
on the output.

But it should also be nicer for people who e.g. do an `ostree pull` in a Jenkins
job or whatever.

Closes: #981
Approved by: jlebon
2017-06-29 16:16:25 +00:00
Colin Walters
90e0d56332 tree-wide: Replace various uses of archive-z2archive
The `-z2` is annoying now since it's really a legacy; we've long
since supported typing `archive`.  Convert the docs fully and
explain that.

Also do some (but not all) of the tests just to encourage newer tests to use
`archive` too.

Closes: #980
Approved by: jlebon
2017-06-29 16:00:13 +00:00
Alexander Larsson
73ba3eb686 pull: When mirroring, only replace summary if we're doing a full mirror
We're hitting this in flathub, where we have a bunch of local builds,
but we also mirror a few refs from the gnome runtime repo into it.
Its fixable by re-doing the summary, but for a short time the
wrong version is visible.

Fixes https://github.com/ostreedev/ostree/issues/846

Closes: #935
Approved by: cgwalters
2017-06-16 15:08:39 +00:00
Colin Walters
9529e8d435 lib/pull: Extend BAREUSERONLY_FILES flag to HTTP requests
For the flatpak PR: https://github.com/flatpak/flatpak/pull/849

It's really more convenient if this works for HTTP pulls as well, since flatpak
does various types of pulling, and we can just set the flag everywhere.

Further, we might as well reject the content as early as possible.

Closes: #930
Approved by: alexlarsson
2017-06-15 07:10:22 +00:00
Colin Walters
6ed824bf00 lib/pull: Add OSTREE_REPO_PULL_FLAGS_BAREUSERONLY_FILES
This is an option which is intended mostly for flatpak;
see: https://github.com/flatpak/flatpak/issues/845

We're adding an option for pulling into *all*
repo modes that has an effect similar to the `bare-user-only`
change from https://github.com/ostreedev/ostree/pull/909

This way one can pull content into e.g. a root-owned `bare` repository and
ensure that there aren't any setuid or world-writable files.

Closes: #926
Approved by: alexlarsson
2017-06-13 18:44:28 +00:00
Colin Walters
ad119aece9 pull-test: Add some 404 tests
See: https://github.com/flatpak/flatpak/issues/816

Closes: #887
Approved by: jlebon
2017-05-26 14:33:59 +00:00
Jonathan Lebon
a8fd37b6a0 pull: complete detached meta fetch before scanning
If somehow a repo has gpg verification on but doesn't have signatures
present for the existing commit, ostree would error out if it needs to
scan the commit object (e.g. if there are no updates available).

An instance of this is currently happening in Fedora AH, in which
signatures are not shipped in the ISO due to filesystem restrictions.
Another possible scenario is if a content provider switches from not
signing commits to signing them; even if older commits are retroactively
signed, clients' local commit objects would error out if they needed
scanning.

This patch adds a check to ensure that we always attempt to fetch the
detached metadata and wait for its result (whether it exists or not)
before moving on to scan their corresponding commit objects.

See also: https://github.com/projectatomic/rpm-ostree/issues/630

Closes: #873
Approved by: cgwalters
2017-05-18 01:14:15 +00:00
Colin Walters
b9df96db8b pull: Support deltas for explicit commits
I think the majority of OSTree usage calls pull with refs, not
explicit commits.  We even added special "override syntax" with
`@` (e.g. `ostree pull foo@ab12c34`) as a hybrid.

However, some users may want to still pull explicit commits
for whatever reason.  The old static delta logic looked at
the previous commit of the ref.  However, in https://github.com/ostreedev/ostree/pull/710
we enhanced the logic to look at all local commits.

It's now a lot more natural to teach the delta logic
to support revisions, e.g. `ostree pull someorigin ab12c34`.

This also fixes the problem that before, `--require-static-deltas`
was completely ignored when processing revisions.

This is a nontrivial refactoring of the logic, but the end
result feels a lot more readable to me.

Closes: https://github.com/ostreedev/ostree/issues/783

Closes: #787
Approved by: cgwalters
2017-04-12 21:30:33 +00:00
Colin Walters
455cc5e892 repo+tests: Add [core]disable-xattrs=true, use it on overlayfs
There are a lot of things suboptimal about this approach, but
on the other hand we need to get our CI back up and running.

The basic approach is to - in the test suite, detect if we're on overlayfs. If
so, set a flag in the repo, which gets picked up by a few strategic places in
the core to turn on "ignore xattrs".

I also had to add a variant of this for the sysroot work.

The core problem here is while overlayfs will let us read and
see the SELinux labels, it won't let us write them.

Down the line, we should improve this so that we can selectively ignore e.g.
`security.*` attributes but not `user.*` say.

Closes: https://github.com/ostreedev/ostree/issues/758

Closes: #759
Approved by: jlebon
2017-03-24 22:16:43 +00:00
Jonathan Lebon
199646ccfa pull: don't use static deltas if archive repo
In https://github.com/ostreedev/ostree/pull/408, we disabled the use of
static deltas when mirroring. Later,
https://github.com/ostreedev/ostree/pull/506 loosened this up again so
that we could use static deltas when mirroring into bare{-user} repos.

However, the issue which originally spurrred #408 is even more generic
than that: we want to avoid static deltas for any archive repo, not just
when doing a mirror pull. This patch tightens this up, and also
relocates the decision code to make it easier to read.

Closes: #715
Approved by: cgwalters
2017-03-02 20:35:24 +00:00
Colin Walters
b5c5003ff6 pull: Fold together deltapart+fallback count for display
It's just simpler, and I'm not sure people are going to care
much about the difference by default.

We already folded in the fallback sizes into the download totals, so folding in
the count makes things consistent; previously you could see e.g.
`3/3 parts, 100MB/150MB` and be confused.

Closes: #678
Approved by: giuseppe
2017-02-17 14:58:25 +00:00
Simon McVittie
9a3f82caae Sourced test snippets: remove shebang and make non-executable
They are installed non-executable, which makes Debian's Lintian
packaging consistency check complain that #! is only useful
in executable scripts. But in fact they are not useful to execute
directly (they rely on setup being done in the script that sources
them), so just chmod them -x.

Closes: #652
Approved by: cgwalters
2017-01-19 13:54:59 +00:00
Colin Walters
17f264a487 repo: Add unconfigured-state to remote config options
This is a migration from the origin version.  It's
nicer to have it in the remote, since that's what one
needs to change.  Then tools don't need to mess with
the origin file.o

In fact in this scenario one can keep the "media source" like
`file:///install/repo` or whatever, since conceptually that's where it
came from.  We're just providing a better error.

Closes: https://github.com/ostreedev/ostree/issues/626

Closes: #627
Approved by: jlebon
2016-12-09 17:46:54 +00:00
Colin Walters
2139f0e437 pull: Don't do deltas with --commit-metadata-only
We should just download the commit objects directly, as it's
obviously a lot more efficient than deltas.

I had to generate a summary file in more places in the tests,
since once created, it needs to be updated.

Closes: https://github.com/ostreedev/ostree/issues/528

Closes: #566
Approved by: jlebon
2016-11-04 16:04:23 +00:00
Colin Walters
bac1fa1839 pull: Don't execute static deltas when mirroring
We don't presently support this, since the static delta code assumes
it can just `mmap()` file objects.  We could at some point implement
this, but for now just skip executing deltas when doing
`archive -> archive` mirroring.

I noticed this when trying to mirror a repo in Jenkins in
[CAHC](https://wiki.centos.org/SpecialInterestGroup/Atomic/Devel).

Closes: #408
Approved by: giuseppe
2016-07-25 06:50:51 +00:00
Colin Walters
d25212f04a tests: Port to glib-tap.mk, make make check run all of the tests
OSTree's code for testing predates the `glib-tap.mk` making its
way into GLib.  Let's switch to it, as it provides a number
of advantages.

By far the biggest advantage is that `make check` can start to run
most of the tests *in addition* to having them work installed.

This commit keeps the installed tests working, but `make check` turns
out to be really broken because...our TAP usage has bitrotted to say
the least.  Fix that all up.

Do some hacks so that the tests work uninstalled as well - in
particular, `glib-tap.mk` and the bits encoded into
`g_test_build_filename()` assume *recursive* Automake (blah).  Work
around that by creating a symlink when installed to loop back.
2016-03-03 08:50:19 -05:00
Giuseppe Scrivano
82d4e7fe68 Fix make syntax-check
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
2016-03-01 10:08:25 -05:00
Colin Walters
04d77da005 deltas: Use endianness marker when parsing
Extend the `static-delta show` and `pull` commands to use the
endianness information (if available).
2016-02-26 08:19:01 -05:00
Colin Walters
4beb5f4eaf pull: Add a --dry-run option for static deltas
One of the design goals with deltas was not just wire efficiency,
but also having all the data up front about how much data would
be transferred before starting.

Let's expose that better by adding a `dry-run` option to the pull API.
This requires static deltas to be useful.  Basically we simply call
the progress callback once with the data from the superblock.
2016-02-19 15:21:13 -05:00
Colin Walters
f2c5ecb996 pull: Add require-static-deltas pull option
For a production release repository, most OS vendors would want
to just always use static deltas.  Add the ability for the pulls to
require it.

(I think I'll also add a summary key for this actually in addition,
 so the repo manager can force it too)
2016-02-19 15:21:13 -05:00