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In gABI 4.3, st_other was changed such that the lower 3 bits are reserved for
the visibility, up from the previous 2 bits.
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std.fmt.Formatter -> std.fmt.Alt
std.fmt.format -> std.Io.Writer.print
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Also, breaking API changes to:
* std.fs.Dir.readFileAlloc
* std.fs.Dir.readFileAllocOptions
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and delete deprecated alias std.io
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Just a typo: I wasn't actually using the duped message, so the message I
sent could be freed in this interval.
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Fixes #23993
Previously, if multiple build processes tried to create the same args file, there was a race condition with the use of the non-atomic `writeFile` function which could cause a spawned compiler to read an empty or incomplete args file. This commit avoids the race condition by first writing to a temporary file with a random path and renaming it to the desired path.
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Writer.sendFileAll() asserts non-zero buffer capacity in the case that
the fallback is hit. It also requires the caller to flush. The buffer
may be bypassed as an optimization but this is not a guarantee.
Also improve the Writer documentation and add an earlier assert on
buffer capacity in sendFileAll().
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This also makes initStreaming preemptively disable file size checking.
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As well as the exact byte count, include a human-readable value so it's
clearer what the error is actually telling you. The exact byte count
might not be worth keeping, but I decided I would in case it's useful in
any scenario.
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Resolves: #24723
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This "get" is useless noise and was copied from FixedBufferWriter.
Since this API has not yet landed in a release, now is a good time
to make the breaking change to fix this.
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send and receive logic to use overlapped I/O.
build-web: Remove the now-redundant supports_recv logic
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This commit re-enables the --webui functionality on windows, with the caveat that rebuild functionality is still disabled (due to deadlocks caused by reading to / writing from the same non-overlapped socket on multiple threads). I updated the UI to be aware of this, and hide the `Rebuild` button.
http.Server: Remove incorrect advance() call. This was causing browsers to disconnect the websocket, as we were sending undefined bytes.
build.WebServer: Re-enable on windows, but disable functionality that requires receiving messages from the client
build-web: Show total times in tables
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spirv: refactor and remove deduplication ISel
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before this we would get a crash
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Previously, this only applied when using `-fincremental --watch`, but
`--webui` makes the build runner stay alive just like `--watch` does, so
the same logic applies here. Without this, attempting to perform
incremental updates with `--webui` performs full rebuilds. (I did test
that before merging the PR, but at that time I was passing `--watch`
too -- which has since been disallowed -- so I missed that it doesn't
work as expected without that option!)
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Resolves: #21905
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This commit replaces the "fuzzer" UI, previously accessed with the
`--fuzz` and `--port` flags, with a more interesting web UI which allows
more interactions with the Zig build system. Most notably, it allows
accessing the data emitted by a new "time report" system, which allows
users to see which parts of Zig programs take the longest to compile.
The option to expose the web UI is `--webui`. By default, it will listen
on `[::1]` on a random port, but any IPv6 or IPv4 address can be
specified with e.g. `--webui=[::1]:8000` or `--webui=127.0.0.1:8000`.
The options `--fuzz` and `--time-report` both imply `--webui` if not
given. Currently, `--webui` is incompatible with `--watch`; specifying
both will cause `zig build` to exit with a fatal error.
When the web UI is enabled, the build runner spawns the web server as
soon as the configure phase completes. The frontend code consists of one
HTML file, one JavaScript file, two CSS files, and a few Zig source
files which are built into a WASM blob on-demand -- this is all very
similar to the old fuzzer UI. Also inherited from the fuzzer UI is that
the build system communicates with web clients over a WebSocket
connection.
When the build finishes, if `--webui` was passed (i.e. if the web server
is running), the build runner does not terminate; it continues running
to serve web requests, allowing interactive control of the build system.
In the web interface is an overall "status" indicating whether a build
is currently running, and also a list of all steps in this build. There
are visual indicators (colors and spinners) for in-progress, succeeded,
and failed steps. There is a "Rebuild" button which will cause the build
system to reset the state of every step (note that this does not affect
caching) and evaluate the step graph again.
If `--time-report` is passed to `zig build`, a new section of the
interface becomes visible, which associates every build step with a
"time report". For most steps, this is just a simple "time taken" value.
However, for `Compile` steps, the compiler communicates with the build
system to provide it with much more interesting information: time taken
for various pipeline phases, with a per-declaration and per-file
breakdown, sorted by slowest declarations/files first. This feature is
still in its early stages: the data can be a little tricky to
understand, and there is no way to, for instance, sort by different
properties, or filter to certain files. However, it has already given us
some interesting statistics, and can be useful for spotting, for
instance, particularly complex and slow compile-time logic.
Additionally, if a compilation uses LLVM, its time report includes the
"LLVM pass timing" information, which was previously accessible with the
(now removed) `-ftime-report` compiler flag.
To make time reports more useful, ZIR and compilation caches are ignored
by the Zig compiler when they are enabled -- in other words, `Compile`
steps *always* run, even if their result should be cached. This means
that the flag can be used to analyze a project's compile time without
having to repeatedly clear cache directory, for instance. However, when
using `-fincremental`, updates other than the first will only show you
the statistics for what changed on that particular update. Notably, this
gives us a fairly nice way to see exactly which declarations were
re-analyzed by an incremental update.
If `--fuzz` is passed to `zig build`, another section of the web
interface becomes visible, this time exposing the fuzzer. This is quite
similar to the fuzzer UI this commit replaces, with only a few cosmetic
tweaks. The interface is closer than before to supporting multiple fuzz
steps at a time (in line with the overall strategy for this build UI,
the goal will be for all of the fuzz steps to be accessible in the same
interface), but still doesn't actually support it. The fuzzer UI looks
quite different under the hood: as a result, various bugs are fixed,
although other bugs remain. For instance, viewing the source code of any
file other than the root of the main module is completely broken (as on
master) due to some bogus file-to-module assignment logic in the fuzzer
UI.
Implementation notes:
* The `lib/build-web/` directory holds the client side of the web UI.
* The general server logic is in `std.Build.WebServer`.
* Fuzzing-specific logic is in `std.Build.Fuzz`.
* `std.Build.abi` is the new home of `std.Build.Fuzz.abi`, since it now
relates to the build system web UI in general.
* The build runner now has an **actual** general-purpose allocator,
because thanks to `--watch` and `--webui`, the process can be
arbitrarily long-lived. The gpa is `std.heap.DebugAllocator`, but the
arena remains backed by `std.heap.page_allocator` for efficiency. I
fixed several crashes caused by conflation of `gpa` and `arena` in the
build runner and `std.Build`, but there may still be some I have
missed.
* The I/O logic in `std.Build.WebServer` is pretty gnarly; there are a
*lot* of threads involved. I anticipate this situation improving
significantly once the `std.Io` interface (with concurrency support)
is introduced.
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when a Run step that captures stderr fails, no output from it is visible
by the user and, since the step failed, any downstream step that would
process the captured stream will not run, making it impossible for the
user to see the stderr output from the failed process invocation, which
makes for a frustrating puzzle when this happens in CI.
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Not only are `Step.Compile` methods like `linkLibC()` redundant because
`Module` exposes the same APIs, it also might not be immediately obvious
to users that these methods modify the underlying root module, which can
be a footgun and lead to unintended results if the module is exported to
package consumers or shared by multiple compile steps.
Using `compile.root_module.link_libc = true` makes it more clear to
users which of the compile step and the module owns which options.
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please use File.Writer for these use cases
also breaking API changes to std.fs.AtomicFile
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std.zig: finish updating to new I/O API
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update std.json and std.zon to new I/O API
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https://github.com/ziglang/zig/pull/24151/files#r2217494741
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tried to be too clever, wrote bad code
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closes #24421
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This silences the excessive default stderr logging from Wine. The user can still
override this by setting WINEDEBUG in the environment; this just provides a more
sensible default.
Closes #24139.
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Basically everything that has a direct replacement or no uses left.
Notable omissions:
- std.ArrayHashMap: Too much fallout, needs a separate cleanup.
- std.debug.runtime_safety: Too much fallout.
- std.heap.GeneralPurposeAllocator: Lots of references to it remain, not
a simple find and replace as "debug allocator" is not equivalent to
"general purpose allocator".
- std.io.Reader: Is being reworked at the moment.
- std.unicode.utf8Decode(): No replacement, needs a new API first.
- Manifest backwards compat options: Removal would break test data used
by TestFetchBuilder.
- panic handler needs to be a namespace: Many tests still rely on it
being a function, needs a separate cleanup.
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oops!
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the updated code to use new std.io API is crashing
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Alignment and fill options only apply to numbers.
Rework the implementation to mainly branch on the format string rather
than the type information. This is more straightforward to maintain and
more straightforward for comptime evaluation.
Enums support being printed as decimal, hexadecimal, octal, and binary.
`formatInteger` is another possible format method that is
unconditionally called when the value type is struct and one of the
integer-printing format specifiers are used.
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Introduces `std.fmt.alt` which is a helper for calling alternate format
methods besides one named "format".
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Now that the buffered writing interface is not generic.
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