Fully remove submodule handling from bootstrap.py

These submodules were previously updated in python because Cargo gives a hard error if toml files
are missing from the workspace:

```
error: failed to load manifest for workspace member `/home/jnelson/rust-lang/rust/src/tools/rls`

Caused by:
  failed to read `/home/jnelson/rust-lang/rust/src/tools/rls/Cargo.toml`

Caused by:
  No such file or directory (os error 2)
failed to run: /home/jnelson/rust-lang/rust/build/x86_64-unknown-linux-gnu/stage0/bin/cargo build --manifest-path /home/jnelson/rust-lang/rust/src/bootstrap/Cargo.toml
```

However, bootstrap doesn't actually need to be part of the workspace.
Remove it so we can move submodule handling fully to Rust, avoiding duplicate code between Rust and Python.

Note that this does break `cargo run`; it has to be `cd src/bootstrap && cargo run` now.
Given that we're planning to make the main entrypoint a shell script (or rust binary),
I think this is a good tradeoff for reduced complexity in bootstrap.py.
This commit is contained in:
Joshua Nelson 2022-05-29 02:26:19 -05:00
parent a09c668c96
commit 9cde0f7877
6 changed files with 705 additions and 183 deletions

View File

@ -215,32 +215,6 @@ dependencies = [
"byte-tools",
]
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name = "bootstrap"
version = "0.0.0"
dependencies = [
"cc",
"cmake",
"filetime",
"getopts",
"hex 0.4.2",
"ignore",
"libc",
"num_cpus",
"once_cell",
"opener",
"pretty_assertions 0.7.2",
"serde",
"serde_json",
"sha2",
"sysinfo",
"tar",
"toml",
"walkdir",
"winapi",
"xz2",
]
[[package]]
name = "bstr"
version = "0.2.13"
@ -735,15 +709,6 @@ dependencies = [
"rustc-semver",
]
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dependencies = [
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]
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name = "colored"
version = "2.0.0"
@ -1023,9 +988,9 @@ dependencies = [
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name = "ctor"
version = "0.1.15"
version = "0.1.22"
source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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@ -2931,18 +2896,6 @@ version = "0.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "925383efa346730478fb4838dbe9137d2a47675ad789c546d150a6e1dd4ab31c"
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]
[[package]]
name = "pretty_assertions"
version = "1.2.1"
@ -5147,21 +5100,6 @@ dependencies = [
"unicode-xid",
]
[[package]]
name = "sysinfo"
version = "0.24.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a6a8e71535da31837213ac114531d31def75d7aebd133264e420a3451fa7f703"
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@ -5538,7 +5476,7 @@ dependencies = [
"colored",
"crossbeam",
"lazy_static",
"pretty_assertions 1.2.1",
"pretty_assertions",
"regex",
"rustc_version",
"serde",

View File

@ -1,7 +1,5 @@
[workspace]
default-members = ["src/bootstrap"]
members = [
"src/bootstrap",
"compiler/rustc",
"library/std",
"library/test",
@ -44,6 +42,7 @@ exclude = [
"build",
"compiler/rustc_codegen_cranelift",
"compiler/rustc_codegen_gcc",
"src/bootstrap",
"src/test/rustdoc-gui",
# HACK(eddyb) This hardcodes the fact that our CI uses `/checkout/obj`.
"obj",
@ -97,15 +96,6 @@ gimli.debug = 0
miniz_oxide.debug = 0
object.debug = 0
# The only package that ever uses debug builds is bootstrap.
# We care a lot about bootstrap's compile times, so don't include debug info for
# dependencies, only bootstrap itself.
[profile.dev]
debug = 0
[profile.dev.package]
# Only use debuginfo=1 to further reduce compile times.
bootstrap.debug = 1
# We want the RLS to use the version of Cargo that we've got vendored in this
# repository to ensure that the same exact version of Cargo is used by both the
# RLS and the Cargo binary itself. The RLS depends on Cargo as a git repository

676
src/bootstrap/Cargo.lock Normal file
View File

@ -0,0 +1,676 @@
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View File

@ -74,3 +74,11 @@ pretty_assertions = "0.7"
[features]
build-metrics = ["sysinfo"]
# We care a lot about bootstrap's compile times, so don't include debuginfo for
# dependencies, only bootstrap itself.
[profile.dev]
debug = 0
[profile.dev.package]
# Only use debuginfo=1 to further reduce compile times.
bootstrap.debug = 1

View File

@ -813,110 +813,6 @@ class RustBuild(object):
return config
return default_build_triple(self.verbose)
def check_submodule(self, module):
checked_out = subprocess.Popen(["git", "rev-parse", "HEAD"],
cwd=os.path.join(self.rust_root, module),
stdout=subprocess.PIPE)
return checked_out
def update_submodule(self, module, checked_out, recorded_submodules):
module_path = os.path.join(self.rust_root, module)
default_encoding = sys.getdefaultencoding()
checked_out = checked_out.communicate()[0].decode(default_encoding).strip()
if recorded_submodules[module] == checked_out:
return
print("Updating submodule", module)
run(["git", "submodule", "-q", "sync", module],
cwd=self.rust_root, verbose=self.verbose)
update_args = ["git", "submodule", "update", "--init", "--recursive", "--depth=1"]
if self.git_version >= distutils.version.LooseVersion("2.11.0"):
update_args.append("--progress")
update_args.append(module)
try:
run(update_args, cwd=self.rust_root, verbose=self.verbose, exception=True)
except RuntimeError:
print("Failed updating submodule. This is probably due to uncommitted local changes.")
print('Either stash the changes by running "git stash" within the submodule\'s')
print('directory, reset them by running "git reset --hard", or commit them.')
print("To reset all submodules' changes run", end=" ")
print('"git submodule foreach --recursive git reset --hard".')
raise SystemExit(1)
run(["git", "reset", "-q", "--hard"],
cwd=module_path, verbose=self.verbose)
run(["git", "clean", "-qdfx"],
cwd=module_path, verbose=self.verbose)
def update_submodules(self):
"""Update submodules"""
has_git = os.path.exists(os.path.join(self.rust_root, ".git"))
# This just arbitrarily checks for cargo, but any workspace member in
# a submodule would work.
has_submodules = os.path.exists(os.path.join(self.rust_root, "src/tools/cargo/Cargo.toml"))
if not has_git and not has_submodules:
print("This is not a git repository, and the requisite git submodules were not found.")
print("If you downloaded the source from https://github.com/rust-lang/rust/releases,")
print("those sources will not work. Instead, consider downloading from the source")
print("releases linked at")
print("https://forge.rust-lang.org/infra/other-installation-methods.html#source-code")
print("or clone the repository at https://github.com/rust-lang/rust/.")
raise SystemExit(1)
if not has_git or self.get_toml('submodules') == "false":
return
default_encoding = sys.getdefaultencoding()
# check the existence and version of 'git' command
git_version_str = require(['git', '--version']).split()[2].decode(default_encoding)
self.git_version = distutils.version.LooseVersion(git_version_str)
start_time = time()
print('Updating only changed submodules')
default_encoding = sys.getdefaultencoding()
# Only update submodules that are needed to build bootstrap. These are needed because Cargo
# currently requires everything in a workspace to be "locally present" when starting a
# build, and will give a hard error if any Cargo.toml files are missing.
# FIXME: Is there a way to avoid cloning these eagerly? Bootstrap itself doesn't need to
# share a workspace with any tools - maybe it could be excluded from the workspace?
# That will still require cloning the submodules the second you check the standard
# library, though...
# FIXME: Is there a way to avoid hard-coding the submodules required?
# WARNING: keep this in sync with the submodules hard-coded in bootstrap/lib.rs
submodules = [
"src/tools/rust-installer",
"src/tools/cargo",
"src/tools/rls",
"src/tools/miri",
"library/backtrace",
"library/stdarch"
]
# If build.vendor is set in config.toml, we must update rust-analyzer also.
# Otherwise, the bootstrap will fail (#96456).
if self.use_vendored_sources:
submodules.append("src/tools/rust-analyzer")
filtered_submodules = []
submodules_names = []
for module in submodules:
check = self.check_submodule(module)
filtered_submodules.append((module, check))
submodules_names.append(module)
recorded = subprocess.Popen(["git", "ls-tree", "HEAD"] + submodules_names,
cwd=self.rust_root, stdout=subprocess.PIPE)
recorded = recorded.communicate()[0].decode(default_encoding).strip().splitlines()
# { filename: hash }
recorded_submodules = {}
for data in recorded:
# [mode, kind, hash, filename]
data = data.split()
recorded_submodules[data[3]] = data[2]
for module in filtered_submodules:
self.update_submodule(module[0], module[1], recorded_submodules)
print(" Submodules updated in %.2f seconds" % (time() - start_time))
def set_dist_environment(self, url):
"""Set download URL for normal environment"""
if 'RUSTUP_DIST_SERVER' in os.environ:
@ -970,6 +866,7 @@ class RustBuild(object):
run([
self.cargo(),
"vendor",
"--sync=./src/bootstrap/Cargo.toml",
"--sync=./src/tools/rust-analyzer/Cargo.toml",
"--sync=./compiler/rustc_codegen_cranelift/Cargo.toml",
], verbose=self.verbose, cwd=self.rust_root)
@ -1052,7 +949,6 @@ def bootstrap(help_triggered):
if not os.path.exists(build.build_dir):
os.makedirs(build.build_dir)
lock = acquire_lock(build.build_dir)
build.update_submodules()
# Fetch/build the bootstrap
build.download_toolchain()

View File

@ -537,6 +537,20 @@ pub fn new(config: Config) -> Build {
build.local_rebuild = true;
}
// Make sure we update these before gathering metadata so we don't get an error about missing
// Cargo.toml files.
let rust_submodules = [
"src/tools/rust-installer",
"src/tools/cargo",
"src/tools/rls",
"src/tools/miri",
"library/backtrace",
"library/stdarch",
];
for s in rust_submodules {
build.update_submodule(Path::new(s));
}
build.verbose("learning about cargo");
metadata::build(&mut build);