- Adds a CheckStyle configuration which is pretty similar to CC's
existing one.
- Add the Gradle license plugin.
- Ensure the existing source code is compatible with these additional
checks.
See #239
OK, so let's get this out of the way, there's some actual changes mixed
in here too. I'm really sorry:
- Turtles can now not be renamed with unnamed item tags (previously it
would clear the name, this seemed a little unideal).
- commands.getBlock(s)Data will also include NBT.
Now, onto the horror story which is these inspection changes:
- Make a lot of methods static
- Typo fixes
- Make utility classes final + private constructor
- Lots of reformatting (ifs -> ternary, invert control flow, etc...)
- ???
- Profit!
I'm so going to regret this - can pretty much guarantee this is going to
break something.
When closing a BufferedWriter, we close the underlying writer. As we're
using channels, this is an instance of sun.nio.cs.StreamEncoder. This
will attempt to flush the pending character.
However, if throwing an exception within .write errors, the flush will
fail and so the underlying stream is not closed. This was causing us to
leak file descriptors.
We fix this by introducing ChannelWrappers - this holds the wrapper
object (say, a BufferedWriter) and underlying channel. When closed, we
dispose of the wrapper, and then the channel. You could think of this as
doing a nested try-with-resources, rather than a single one.
Note, this is not related to JDK-6378948 - this occurs in the underlying
stream encoder instead.
- Rename unload -> close to be a little more consistent
- Make pollAndResetChanged be atomic, so we don't need to aquire a lock
- Get the computer queue from the task owner, rather than a separate
argument.
- Move all HTTP tasks to a unified "MonitoredResource" model. This
provides a uniform way of tracking object's lifetimes and disposing
of them when complete.
- Rewrite HTTP requests to use Netty instead of standard Java. This
offers several advantages:
- We have access to more HTTP verbs (mostly PATCH).
- We can now do http -> https redirects.
- We no longer need to spawn in a new thread for each HTTP request.
While we do need to run some tasks off-thread in order to resolve
IPs, it's generally a much shorter task, and so is less likely to
inflate the thread pool.
- Introduce several limits for the http API:
- There's a limit on how many HTTP requests and websockets may exist
at the same time. If the limit is reached, additional ones will be
queued up until pending requests have finished.
- HTTP requests may upload a maximum of 4Mib and download a maximum
of 16Mib (configurable).
- .getResponseCode now returns the status text, as well as the status
code.
- Rename openStreamFor* methods to more accurate openChannelFor*
- Fix ArrayByteChannel having an incorrect .position() implementation
Cherry-picked from the PR against dan200/ComputerCraft
This replaces the existing IMount openFor* method with openChannelFor*
ones, which return an appropriate byte channel instead.
As channels are not correctly closed when GCed, we introduce a
FileSystemWrapper. We store a weak reference to this, and when it is
GCed or the file closed, we will remove it from our "open file" set and
ensure any underlying buffers are closed.
While this change may seem a little odd, it does introduce some
benefits:
- We can replace JarMount with a more general FileSystemMount. This
does assume a read-only file system, but could technically be used
for other sources.
- Add support for seekable (binary) handles. We can now look for
instances of SeekableByteChannel and dynamically add it. This works
for all binary filesystem and HTTP streams.
- Rewrite the io library to more accurately emulate PUC Lua's
implementation. We do not correctly implement some elements (most
noticably "*n", but it's a definite improvement.
ILuaAPI has been moved to dan200.computercraft.api.lua. One creates
a new API by registering an instance of ILuaAPIFactory. This takes an
instance of IComputerSystem and returns such an API.
IComputerSystem is an extension of IComputerAccess, with methods to
access additional information about the the computer, such as its label
and filesystem.
Changes all equal or longer then 3 multidots setups to be treated as .
This removes other potentialy dangerus situations and brings it closer to windows in how it treats said dots.
- Move the encoding/decoding from the Filesystem implementation to the
individual handles.
- Move each handle into an core.apis.handles package from the main fs
API.
- Move the HTTP response to inherit from these handles.
- Allow binary handles' read function to accept a number, specifying
how many characters to read - these will be returned as a Lua string.
- Add readAll to binary handles
- Allow binary handles' write function to accept a string which is
decoded into the individual bytes.
- Add "binary" argument to http.request and friends in order to return
a binary handle.
- Ensure file handles are open when reading from/writing to them.
- Return the error message when opening a file fails.
This means if lua code forgets to free a handle, the java GC will still
be able to collect the stream (andclose the file in the finaliser in the
process)
This ensures fs.list and fs.find always return the same result.
For some reason, the ComputerCraft jar was being packaged differently on
some platforms, causing files to appear in a different order. As
computers depend on the colors API being loaded before colours, we need
to ensure that they are loaded in a consistent order.
If the path includes no wildcards then it just checks it exists.
If it does, instead of scanning the entire tree, it works out the last
directory before the wildcard and starts scanning from there.
Closes#89
SquidDev