Auto merge of #132070 - fmease:rollup-4i4k587, r=fmease

Rollup of 5 pull requests

Successful merges:

 - #131043 (Refactor change detection for rustdoc and download-rustc)
 - #131181 (Compiletest: Custom differ)
 - #131487 (Add wasm32v1-none target (compiler-team/#791))
 - #132054 (do not remove `.cargo` directory)
 - #132058 (CI: rfl: use rust-next temporary commit)

r? `@ghost`
`@rustbot` modify labels: rollup
This commit is contained in:
bors 2024-10-23 19:26:00 +00:00
commit 4f2f477fde
20 changed files with 290 additions and 115 deletions

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@ -1803,6 +1803,7 @@ fn $module() {
("wasm32-unknown-emscripten", wasm32_unknown_emscripten),
("wasm32-unknown-unknown", wasm32_unknown_unknown),
("wasm32v1-none", wasm32v1_none),
("wasm32-wasi", wasm32_wasi),
("wasm32-wasip1", wasm32_wasip1),
("wasm32-wasip2", wasm32_wasip2),

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@ -0,0 +1,51 @@
//! A "bare wasm" target representing a WebAssembly output that does not import
//! anything from its environment and also specifies an _upper_ bound on the set
//! of WebAssembly proposals that are supported.
//!
//! It's equivalent to the `wasm32-unknown-unknown` target with the additional
//! flags `-Ctarget-cpu=mvp` and `-Ctarget-feature=+mutable-globals`. This
//! enables just the features specified in <https://www.w3.org/TR/wasm-core-1/>
//!
//! This is a _separate target_ because using `wasm32-unknown-unknown` with
//! those target flags doesn't automatically rebuild libcore / liballoc with
//! them, and in order to get those libraries rebuilt you need to use the
//! nightly Rust feature `-Zbuild-std`. This target is for people who want to
//! use stable Rust, and target a stable set pf WebAssembly features.
use crate::spec::{Cc, LinkerFlavor, Target, base};
pub(crate) fn target() -> Target {
let mut options = base::wasm::options();
options.os = "none".into();
// WebAssembly 1.0 shipped in 2019 and included exactly one proposal
// after the initial "MVP" feature set: "mutable-globals".
options.cpu = "mvp".into();
options.features = "+mutable-globals".into();
options.add_pre_link_args(LinkerFlavor::WasmLld(Cc::No), &[
// For now this target just never has an entry symbol no matter the output
// type, so unconditionally pass this.
"--no-entry",
]);
options.add_pre_link_args(LinkerFlavor::WasmLld(Cc::Yes), &[
// Make sure clang uses LLD as its linker and is configured appropriately
// otherwise
"--target=wasm32-unknown-unknown",
"-Wl,--no-entry",
]);
Target {
llvm_target: "wasm32-unknown-unknown".into(),
metadata: crate::spec::TargetMetadata {
description: Some("WebAssembly".into()),
tier: Some(2),
host_tools: Some(false),
std: Some(false),
},
pointer_width: 32,
data_layout: "e-m:e-p:32:32-p10:8:8-p20:8:8-i64:64-n32:64-S128-ni:1:10:20".into(),
arch: "wasm32".into(),
options,
}
}

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@ -121,7 +121,13 @@ fn check_consistency(&self) {
// Check dynamic linking stuff
// BPF: when targeting user space vms (like rbpf), those can load dynamic libraries.
// hexagon: when targeting QuRT, that OS can load dynamic libraries.
if self.os == "none" && (self.arch != "bpf" && self.arch != "hexagon") {
// wasm{32,64}: dynamic linking is inherent in the definition of the VM.
if self.os == "none"
&& (self.arch != "bpf"
&& self.arch != "hexagon"
&& self.arch != "wasm32"
&& self.arch != "wasm64")
{
assert!(!self.dynamic_linking);
}
if self.only_cdylib

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@ -419,6 +419,9 @@
# passed to cargo invocations.
#jobs = 0
# What custom diff tool to use for displaying compiletest tests.
#compiletest-diff-tool = <none>
# =============================================================================
# General install configuration options
# =============================================================================

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@ -1092,9 +1092,6 @@ class RustBuild(object):
if not os.path.exists(cargo_dir):
eprint('ERROR: vendoring required, but .cargo/config does not exist.')
raise Exception("{} not found".format(cargo_dir))
else:
if os.path.exists(cargo_dir):
shutil.rmtree(cargo_dir)
def parse_args(args):
"""Parse the command line arguments that the python script needs."""

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@ -1836,6 +1836,9 @@ fn run(self, builder: &Builder<'_>) {
if builder.config.cmd.only_modified() {
cmd.arg("--only-modified");
}
if let Some(compiletest_diff_tool) = &builder.config.compiletest_diff_tool {
cmd.arg("--compiletest-diff-tool").arg(compiletest_diff_tool);
}
let mut flags = if is_rustdoc { Vec::new() } else { vec!["-Crpath".to_string()] };
flags.push(format!("-Cdebuginfo={}", builder.config.rust_debuginfo_level_tests));

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@ -1,8 +1,6 @@
use std::path::PathBuf;
use std::{env, fs};
use build_helper::git::get_closest_merge_commit;
use crate::core::build_steps::compile;
use crate::core::build_steps::toolstate::ToolState;
use crate::core::builder;
@ -10,7 +8,7 @@
use crate::core::config::TargetSelection;
use crate::utils::channel::GitInfo;
use crate::utils::exec::{BootstrapCommand, command};
use crate::utils::helpers::{add_dylib_path, exe, git, t};
use crate::utils::helpers::{add_dylib_path, exe, t};
use crate::{Compiler, Kind, Mode, gha};
#[derive(Debug, Clone, Hash, PartialEq, Eq)]
@ -596,28 +594,11 @@ fn run(self, builder: &Builder<'_>) -> PathBuf {
&& target_compiler.stage > 0
&& builder.rust_info().is_managed_git_subrepository()
{
let commit = get_closest_merge_commit(
Some(&builder.config.src),
&builder.config.git_config(),
&[],
)
.unwrap();
let files_to_track = &["src/librustdoc", "src/tools/rustdoc"];
let librustdoc_src = builder.config.src.join("src/librustdoc");
let rustdoc_src = builder.config.src.join("src/tools/rustdoc");
// FIXME: The change detection logic here is quite similar to `Config::download_ci_rustc_commit`.
// It would be better to unify them.
let has_changes = !git(Some(&builder.config.src))
.allow_failure()
.run_always()
.args(["diff-index", "--quiet", &commit])
.arg("--")
.arg(librustdoc_src)
.arg(rustdoc_src)
.run(builder);
if !has_changes {
// Check if unchanged
if builder.config.last_modified_commit(files_to_track, "download-rustc", true).is_some()
{
let precompiled_rustdoc = builder
.config
.ci_rustc_dir()

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@ -368,6 +368,9 @@ pub struct Config {
/// The paths to work with. For example: with `./x check foo bar` we get
/// `paths=["foo", "bar"]`.
pub paths: Vec<PathBuf>,
/// Command for visual diff display, e.g. `diff-tool --color=always`.
pub compiletest_diff_tool: Option<String>,
}
#[derive(Clone, Debug, Default)]
@ -892,6 +895,7 @@ struct Build {
android_ndk: Option<PathBuf> = "android-ndk",
optimized_compiler_builtins: Option<bool> = "optimized-compiler-builtins",
jobs: Option<u32> = "jobs",
compiletest_diff_tool: Option<String> = "compiletest-diff-tool",
}
}
@ -1512,6 +1516,7 @@ fn get_table(option: &str) -> Result<TomlConfig, toml::de::Error> {
android_ndk,
optimized_compiler_builtins,
jobs,
compiletest_diff_tool,
} = toml.build.unwrap_or_default();
config.jobs = Some(threads_from_config(flags.jobs.unwrap_or(jobs.unwrap_or(0))));
@ -2158,6 +2163,7 @@ fn get_table(option: &str) -> Result<TomlConfig, toml::de::Error> {
config.rust_debuginfo_level_tests = debuginfo_level_tests.unwrap_or(DebuginfoLevel::None);
config.optimized_compiler_builtins =
optimized_compiler_builtins.unwrap_or(config.channel != "dev");
config.compiletest_diff_tool = compiletest_diff_tool;
let download_rustc = config.download_rustc_commit.is_some();
// See https://github.com/rust-lang/compiler-team/issues/326
@ -2754,25 +2760,25 @@ fn download_ci_rustc_commit(
}
};
let files_to_track = &[
self.src.join("compiler"),
self.src.join("library"),
self.src.join("src/version"),
self.src.join("src/stage0"),
self.src.join("src/ci/channel"),
];
let files_to_track =
&["compiler", "library", "src/version", "src/stage0", "src/ci/channel"];
// Look for a version to compare to based on the current commit.
// Only commits merged by bors will have CI artifacts.
let commit =
get_closest_merge_commit(Some(&self.src), &self.git_config(), files_to_track).unwrap();
if commit.is_empty() {
println!("ERROR: could not find commit hash for downloading rustc");
println!("HELP: maybe your repository history is too shallow?");
println!("HELP: consider disabling `download-rustc`");
println!("HELP: or fetch enough history to include one upstream commit");
crate::exit!(1);
}
let commit = match self.last_modified_commit(files_to_track, "download-rustc", if_unchanged)
{
Some(commit) => commit,
None => {
if if_unchanged {
return None;
}
println!("ERROR: could not find commit hash for downloading rustc");
println!("HELP: maybe your repository history is too shallow?");
println!("HELP: consider disabling `download-rustc`");
println!("HELP: or fetch enough history to include one upstream commit");
crate::exit!(1);
}
};
if CiEnv::is_ci() && {
let head_sha =
@ -2787,31 +2793,7 @@ fn download_ci_rustc_commit(
return None;
}
// Warn if there were changes to the compiler or standard library since the ancestor commit.
let has_changes = !t!(helpers::git(Some(&self.src))
.args(["diff-index", "--quiet", &commit])
.arg("--")
.args(files_to_track)
.as_command_mut()
.status())
.success();
if has_changes {
if if_unchanged {
if self.is_verbose() {
println!(
"WARNING: saw changes to compiler/ or library/ since {commit}; \
ignoring `download-rustc`"
);
}
return None;
}
println!(
"WARNING: `download-rustc` is enabled, but there are changes to \
compiler/ or library/"
);
}
Some(commit.to_string())
Some(commit)
}
fn parse_download_ci_llvm(

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@ -280,4 +280,9 @@ pub fn human_readable_changes(changes: &[ChangeInfo]) -> String {
severity: ChangeSeverity::Info,
summary: "Allow setting `--jobs` in config.toml with `build.jobs`.",
},
ChangeInfo {
change_id: 131181,
severity: ChangeSeverity::Info,
summary: "New option `build.compiletest-diff-tool` that adds support for a custom differ for compiletest",
},
];

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@ -118,6 +118,7 @@ ENV TARGETS=$TARGETS,wasm32-wasi
ENV TARGETS=$TARGETS,wasm32-wasip1
ENV TARGETS=$TARGETS,wasm32-wasip1-threads
ENV TARGETS=$TARGETS,wasm32-wasip2
ENV TARGETS=$TARGETS,wasm32v1-none
ENV TARGETS=$TARGETS,sparcv9-sun-solaris
ENV TARGETS=$TARGETS,x86_64-pc-solaris
ENV TARGETS=$TARGETS,x86_64-unknown-linux-gnux32

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@ -2,7 +2,7 @@
set -euo pipefail
LINUX_VERSION=v6.12-rc2
LINUX_VERSION=28e848386b92645f93b9f2fdba5882c3ca7fb3e2
# Build rustc, rustdoc, cargo, clippy-driver and rustfmt
../x.py build --stage 2 library rustdoc clippy rustfmt

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@ -86,6 +86,7 @@
- [wasm32-wasip2](platform-support/wasm32-wasip2.md)
- [wasm32-unknown-emscripten](platform-support/wasm32-unknown-emscripten.md)
- [wasm32-unknown-unknown](platform-support/wasm32-unknown-unknown.md)
- [wasm32v1-none](platform-support/wasm32v1-none.md)
- [wasm64-unknown-unknown](platform-support/wasm64-unknown-unknown.md)
- [\*-win7-windows-msvc](platform-support/win7-windows-msvc.md)
- [x86_64-fortanix-unknown-sgx](platform-support/x86_64-fortanix-unknown-sgx.md)

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@ -195,6 +195,7 @@ target | std | notes
`wasm32-wasi` | ✓ | WebAssembly with WASI (undergoing a [rename to `wasm32-wasip1`][wasi-rename])
[`wasm32-wasip1`](platform-support/wasm32-wasip1.md) | ✓ | WebAssembly with WASI
[`wasm32-wasip1-threads`](platform-support/wasm32-wasip1-threads.md) | ✓ | WebAssembly with WASI Preview 1 and threads
[`wasm32v1-none`](platform-support/wasm32v1-none.md) | * | WebAssembly limited to 1.0 features and no imports
[`x86_64-apple-ios`](platform-support/apple-ios.md) | ✓ | 64-bit x86 iOS
[`x86_64-apple-ios-macabi`](platform-support/apple-ios-macabi.md) | ✓ | Mac Catalyst on x86_64
[`x86_64-fortanix-unknown-sgx`](platform-support/x86_64-fortanix-unknown-sgx.md) | ✓ | [Fortanix ABI] for 64-bit Intel SGX

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@ -132,10 +132,20 @@ As of the time of this writing the proposals that are enabled by default (the
If you're compiling WebAssembly code for an engine that does not support a
feature in LLVM's default feature set then the feature must be disabled at
compile time. Note, though, that enabled features may be used in the standard
library or precompiled libraries shipped via rustup. This means that not only
does your own code need to be compiled with the correct set of flags but the
Rust standard library additionally must be recompiled.
compile time. There are two approaches to choose from:
- If you are targeting a feature set no smaller than the W3C WebAssembly Core
1.0 recommendation -- which is equivalent to the WebAssembly MVP plus the
`mutable-globals` feature -- and you are building `no_std`, then you can
simply use the [`wasm32v1-none` target](./wasm32v1-none.md) instead of
`wasm32-unknown-unknown`, which uses only those minimal features and
includes a core and alloc library built with only those minimal features.
- Otherwise -- if you need std, or if you need to target the ultra-minimal
"MVP" feature set, excluding `mutable-globals` -- you will need to manually
specify `-Ctarget-cpu=mvp` and also rebuild the stdlib using that target to
ensure no features are used in the stdlib. This in turn requires use of a
nightly compiler.
Compiling all code for the initial release of WebAssembly looks like:
@ -150,9 +160,9 @@ then used to recompile the standard library in addition to your own code. This
will produce a binary that uses only the original WebAssembly features by
default and no proposals since its inception.
To enable individual features it can be done with `-Ctarget-feature=+foo`.
Available features for Rust code itself are documented in the [reference] and
can also be found through:
To enable individual features on either this target or `wasm32v1-none`, pass
arguments of the form `-Ctarget-feature=+foo`. Available features for Rust code
itself are documented in the [reference] and can also be found through:
```sh
$ rustc -Ctarget-feature=help --target wasm32-unknown-unknown

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@ -0,0 +1,109 @@
# `wasm32v1-none`
**Tier: 2**
The `wasm32v1-none` target is a WebAssembly compilation target that:
- Imports nothing from its host environment
- Enables no proposals / features past the [W3C WebAssembly Core 1.0 spec]
[W3C WebAssembly Core 1.0 spec]: https://www.w3.org/TR/wasm-core-1/
The target is very similar to [`wasm32-unknown-unknown`](./wasm32-unknown-unknown.md) and similarly uses LLVM's `wasm32-unknown-unknown` backend target. It contains only three minor differences:
* Setting the `target-cpu` to `mvp` rather than the default `generic`. Requesting `mvp` disables _all_ WebAssembly proposals / LLVM target feature flags.
* Enabling the [Import/Export of Mutable Globals] proposal (i.e. the `+mutable-globals` LLVM target feature flag)
* Not compiling the `std` library at all, rather than compiling it with stubs.
[Import/Export of Mutable Globals]: https://github.com/WebAssembly/mutable-global
## Target maintainers
- Alex Crichton, https://github.com/alexcrichton
- Graydon Hoare, https://github.com/graydon
## Requirements
This target is cross-compiled. It does not support `std`, only `core` and `alloc`. Since it imports nothing from its environment, any `std` parts that use OS facilities would be stubbed out with functions-that-fail anyways, and the experience of working with the stub `std` in the `wasm32-unknown-unknown` target was deemed not something worth repeating here.
Everything else about this target's requirements, building, usage and testing is the same as what's described in the [`wasm32-unknown-unknown` document](./wasm32-unknown-unknown.md), just using the target string `wasm32v1-none` in place of `wasm32-unknown-unknown`.
## Conditionally compiling code
It's recommended to conditionally compile code for this target with:
```text
#[cfg(all(target_family = "wasm", target_os = "none"))]
```
Note that there is no way to tell via `#[cfg]` whether code will be running on
the web or not.
## Enabled WebAssembly features
As noted above, _no WebAssembly proposals past 1.0_ are enabled on this target by default. Indeed, the entire point of this target is to have a way to compile for a stable "no post-1.0 proposals" subset of WebAssembly _on stable Rust_.
The [W3C WebAssembly Core 1.0 spec] was adopted as a W3C recommendation in December 2019, and includes exactly one "post-MVP" proposal: the [Import/Export of Mutable Globals] proposal.
All subsequent proposals are _disabled_ on this target by default, though they can be individually enabled by passing LLVM target-feature flags.
For reference sake, the set of proposals that LLVM supports at the time of writing, that this target _does not enable by default_, are listed here along with their LLVM target-feature flags:
* Post-1.0 proposals (integrated into the WebAssembly core 2.0 spec):
* [Bulk memory] - `+bulk-memory`
* [Sign-extending operations] - `+sign-ext`
* [Non-trapping fp-to-int operations] - `+nontrapping-fptoint`
* [Multi-value] - `+multivalue`
* [Reference Types] - `+reference-types`
* [Fixed-width SIMD] - `+simd128`
* Post-2.0 proposals:
* [Threads] (supported by atomics) - `+atomics`
* [Exception handling] - `+exception-handling`
* [Extended Constant Expressions] - `+extended-const`
* [Half Precision] - `+half-precision`
* [Multiple memories]- `+multimemory`
* [Relaxed SIMD] - `+relaxed-simd`
* [Tail call] - `+tail-call`
[Bulk memory]: https://github.com/WebAssembly/spec/blob/main/proposals/bulk-memory-operations/Overview.md
[Sign-extending operations]: https://github.com/WebAssembly/spec/blob/main/proposals/sign-extension-ops/Overview.md
[Non-trapping fp-to-int operations]: https://github.com/WebAssembly/spec/blob/main/proposals/nontrapping-float-to-int-conversion/Overview.md
[Multi-value]: https://github.com/WebAssembly/spec/blob/main/proposals/multi-value/Overview.md
[Reference Types]: https://github.com/WebAssembly/spec/blob/main/proposals/reference-types/Overview.md
[Fixed-width SIMD]: https://github.com/WebAssembly/spec/blob/main/proposals/simd/SIMD.md
[Threads]: https://github.com/webassembly/threads
[Exception handling]: https://github.com/WebAssembly/exception-handling
[Extended Constant Expressions]: https://github.com/WebAssembly/extended-const
[Half Precision]: https://github.com/WebAssembly/half-precision
[Multiple memories]: https://github.com/WebAssembly/multi-memory
[Relaxed SIMD]: https://github.com/WebAssembly/relaxed-simd
[Tail call]: https://github.com/WebAssembly/tail-call
Additional proposals in the future are, of course, also not enabled by default.
## Rationale relative to wasm32-unknown-unknown
As noted in the [`wasm32-unknown-unknown` document](./wasm32-unknown-unknown.md), it is possible to compile with `--target wasm32-unknown-unknown` and disable all WebAssembly proposals "by hand", by passing `-Ctarget-cpu=mvp`. Furthermore one can enable proposals one by one by passing LLVM target feature flags, such as `-Ctarget-feature=+mutable-globals`.
Is it therefore reasonable to wonder what the difference is between building with this:
```sh
$ rustc --target wasm32-unknown-unknown -Ctarget-cpu=mvp -Ctarget-feature=+mutable-globals
```
and building with this:
```sh
$ rustc --target wasm32v1-none
```
The difference is in how the `core` and `alloc` crates are compiled for distribution with the toolchain, and whether it works on _stable_ Rust toolchains or requires _nightly_ ones. Again referring back to the [`wasm32-unknown-unknown` document](./wasm32-unknown-unknown.md), note that to disable all post-MVP proposals on that target one _actually_ has to compile with this:
```sh
$ export RUSTFLAGS="-Ctarget-cpu=mvp -Ctarget-feature=+mutable-globals"
$ cargo +nightly build -Zbuild-std=panic_abort,std --target wasm32-unknown-unknown
```
Which not only rebuilds `std`, `core` and `alloc` (which is somewhat costly and annoying) but more importantly requires the use of nightly Rust toolchains (for the `-Zbuild-std` flag). This is very undesirable for the target audience, which consists of people targeting WebAssembly implementations that prioritize stability, simplicity and/or security over feature support.
This `wasm32v1-none` target exists as an alternative option that works on stable Rust toolchains, without rebuilding the stdlib.

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@ -161,6 +161,7 @@
"wasm32-wasip1",
"wasm32-wasip1-threads",
"wasm32-wasip2",
"wasm32v1-none",
"x86_64-apple-darwin",
"x86_64-apple-ios",
"x86_64-apple-ios-macabi",

View File

@ -387,6 +387,9 @@ pub struct Config {
/// True if the profiler runtime is enabled for this target.
/// Used by the "needs-profiler-runtime" directive in test files.
pub profiler_runtime: bool,
/// Command for visual diff display, e.g. `diff-tool --color=always`.
pub diff_command: Option<String>,
}
impl Config {

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@ -175,6 +175,12 @@ pub fn parse_config(args: Vec<String>) -> Config {
"git-merge-commit-email",
"email address used for finding merge commits",
"EMAIL",
)
.optopt(
"",
"compiletest-diff-tool",
"What custom diff tool to use for displaying compiletest tests.",
"COMMAND",
);
let (argv0, args_) = args.split_first().unwrap();
@ -364,6 +370,7 @@ fn make_absolute(path: PathBuf) -> PathBuf {
git_merge_commit_email: matches.opt_str("git-merge-commit-email").unwrap(),
profiler_runtime: matches.opt_present("profiler-runtime"),
diff_command: matches.opt_str("compiletest-diff-tool"),
}
}

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@ -2459,7 +2459,7 @@ fn delete_file(&self, file: &PathBuf) {
}
}
fn compare_output(&self, kind: &str, actual: &str, expected: &str) -> usize {
fn compare_output(&self, stream: &str, actual: &str, expected: &str) -> usize {
let are_different = match (self.force_color_svg(), expected.find('\n'), actual.find('\n')) {
// FIXME: We ignore the first line of SVG files
// because the width parameter is non-deterministic.
@ -2499,56 +2499,66 @@ fn compare_output(&self, kind: &str, actual: &str, expected: &str) -> usize {
(expected, actual)
};
if !self.config.bless {
if expected.is_empty() {
println!("normalized {}:\n{}\n", kind, actual);
} else {
println!("diff of {}:\n", kind);
print!("{}", write_diff(expected, actual, 3));
}
}
let mode = self.config.compare_mode.as_ref().map_or("", |m| m.to_str());
let output_file = self
// Write the actual output to a file in build/
let test_name = self.config.compare_mode.as_ref().map_or("", |m| m.to_str());
let actual_path = self
.output_base_name()
.with_extra_extension(self.revision.unwrap_or(""))
.with_extra_extension(mode)
.with_extra_extension(kind);
.with_extra_extension(test_name)
.with_extra_extension(stream);
let mut files = vec![output_file];
if self.config.bless {
if let Err(err) = fs::write(&actual_path, &actual) {
self.fatal(&format!("failed to write {stream} to `{actual_path:?}`: {err}",));
}
println!("Saved the actual {stream} to {actual_path:?}");
let expected_path =
expected_output_path(self.testpaths, self.revision, &self.config.compare_mode, stream);
if !self.config.bless {
if expected.is_empty() {
println!("normalized {}:\n{}\n", stream, actual);
} else {
println!("diff of {stream}:\n");
if let Some(diff_command) = self.config.diff_command.as_deref() {
let mut args = diff_command.split_whitespace();
let name = args.next().unwrap();
match Command::new(name)
.args(args)
.args([&expected_path, &actual_path])
.output()
{
Err(err) => {
self.fatal(&format!(
"failed to call custom diff command `{diff_command}`: {err}"
));
}
Ok(output) => {
let output = String::from_utf8_lossy(&output.stdout);
print!("{output}");
}
}
} else {
print!("{}", write_diff(expected, actual, 3));
}
}
} else {
// Delete non-revision .stderr/.stdout file if revisions are used.
// Without this, we'd just generate the new files and leave the old files around.
if self.revision.is_some() {
let old =
expected_output_path(self.testpaths, None, &self.config.compare_mode, kind);
expected_output_path(self.testpaths, None, &self.config.compare_mode, stream);
self.delete_file(&old);
}
files.push(expected_output_path(
self.testpaths,
self.revision,
&self.config.compare_mode,
kind,
));
}
for output_file in &files {
if actual.is_empty() {
self.delete_file(output_file);
} else if let Err(err) = fs::write(&output_file, &actual) {
self.fatal(&format!(
"failed to write {} to `{}`: {}",
kind,
output_file.display(),
err,
));
if let Err(err) = fs::write(&expected_path, &actual) {
self.fatal(&format!("failed to write {stream} to `{expected_path:?}`: {err}"));
}
println!("Blessing the {stream} of {test_name} in {expected_path:?}");
}
println!("\nThe actual {0} differed from the expected {0}.", kind);
for output_file in files {
println!("Actual {} saved to {}", kind, output_file.display());
}
println!("\nThe actual {0} differed from the expected {0}.", stream);
if self.config.bless { 0 } else { 1 }
}

View File

@ -522,6 +522,9 @@
//@ revisions: wasm32_unknown_unknown
//@ [wasm32_unknown_unknown] compile-flags: --target wasm32-unknown-unknown
//@ [wasm32_unknown_unknown] needs-llvm-components: webassembly
//@ revisions: wasm32v1_none
//@ [wasm32v1_none] compile-flags: --target wasm32v1-none
//@ [wasm32v1_none] needs-llvm-components: webassembly
//@ revisions: wasm32_wasi
//@ [wasm32_wasi] compile-flags: --target wasm32-wasi
//@ [wasm32_wasi] needs-llvm-components: webassembly