Commit Graph

9 Commits

Author SHA1 Message Date
Jakob Borg
0e2a07d71a lib/fs: Avoid dirty offset read in fakefs (fixes #6584) 2020-04-28 09:58:31 +02:00
Jakob Borg
0df39ddc72
lib/fs, lib/model: Rewrite RecvOnly tests (#6318)
During some other work I discovered these tests weren't great, so I've
rewritten them to be a little better. The real changes here are:

- Don't play games with not starting the folder and such, and don't
  construct a fake folder instance -- just use the one the model has. The
  folder starts and scans but the folder contents are empty at this point
  so that's fine.

- Use a fakefs instead of a temp dir.

- To support the above, implement a fakefs option `?content=true` to
  make the fakefs actually retain written content. Use sparingly,
  obviously, but it means the fakefs can usually be used instead of an
  on disk real directory.
2020-02-12 07:47:05 +01:00
Evgeny Kuznetsov
1c277fc096 lib/fs: Add case-insensitive fakefs (#6074) 2019-11-29 09:17:42 +01:00
Simon Frei
486230768e lib/fs, lib/model: Add error channel to Watch to avoid panics (fixes #5697) (#5734)
* lib/fs, lib/model: Add error channel to Watch to avoid panics (fixes #5697)

* forgot unsupported watch

* and more non(-standard)-unixy fixes

* and windows test

* review
2019-05-25 20:08:26 +01:00
Jakob Borg
c2ddc83509 all: Revert the underscore sillyness 2019-02-02 12:16:27 +01:00
Jakob Borg
9fd270d78e
all: A few more interesting linter fixes (#5502)
A couple of minor bugs and simplifications
2019-02-02 12:09:07 +01:00
Jakob Borg
df5c1eaf01
all: Bunch of more linter fixes (#5500) 2019-02-02 11:02:28 +01:00
Jakob Borg
75dcff0a0e
all: Copy owner/group from parent (fixes #5445) (#5479)
This adds a folder option "CopyOwnershipFromParent" which, when set,
makes Syncthing attempt to retain the owner/group information when
syncing files. Specifically, at the finisher stage we look at the parent
dir to get owner/group and then attempt a Lchown call on the temp file.
For this to succeed Syncthing must be running with the appropriate
permissions. On Linux this is CAP_FOWNER, which can be granted by the
service manager on startup or set on the binary in the filesystem. Other
operating systems do other things, but often it's not required to run as
full "root". On Windows this patch does nothing - ownership works
differently there and is generally less of a deal, as permissions are
inherited as ACLs anyway.

There are unit tests on the Lchown functionality, which requires the
above permissions to run. There is also a unit test on the folder which
uses the fake filesystem and hence does not need special permissions.
2019-01-25 09:52:21 +01:00
Jakob Borg
d27463268d lib/fs: Add fakefs (#5235)
* lib/fs: Add fakefs

This adds a new fake filesystem type. It's described rather extensively
in fakefs.go, but the main point is that it's for testing: when you want
to spin up a Syncthing and have a terabyte or two of random files that
can be synced somewhere, or an inifitely large filesystem to sync files
into.

It has pseudorandom properties such that data read from one fakefs can
be written into another fakefs and read back and it will look
consistent, without any of the data actually being stored.

To use:

    <folder id="default" path="whatever" ...>
        <filesystemType>fake</filesystemType>

This will create an empty fake filesystem. You can also specify that it
should be prefilled with files:

    <folder id="default" path="whatever?size=2000000" ...>
        <filesystemType>fake</filesystemType>

This will create a filesystem filled with 2TB of random data that can be
scanned and synced. There are more options, see fakefs.go.

Prefilled data is based on a deterministic seed, so you can index the
data and restart Syncthing and the index is still correct for all the
stored data.
2018-10-02 19:29:06 +01:00