Module helpers

Various utility functions used throughout bootstrap.

Simple things like testing the various filesystem operations here and there, not a lot of interesting happenings here unfortunately.

Re-exports

pub use crate::utils::shared_helpers::dylib_path;

pub use crate::utils::shared_helpers::dylib_path_var;

pub use t;

Structs

TimeIt

Enums

LldThreads

Functions

add_dylib_path

Adds a list of lookup paths to cmd’s dynamic library lookup path. If the dylib_path_var is already set for this cmd, the old value will be overwritten!

add_rustdoc_cargo_linker_args

check_cfg_arg

Create a --check-cfg argument invocation for a given name and it’s values.

check_run

dir_is_empty

dir_up_to_date 🔒

exe

extract_beta_rev

Extract the beta revision from the full version string.

forcing_clang_based_tests

get_clang_cl_resource_dir

Adapted from https://github.com/llvm/llvm-project/blob/782e91224601e461c019e0a4573bbccc6094fbcd/llvm/cmake/modules/HandleLLVMOptions.cmake#L1058-L1079

git

Prepares BootstrapCommand that runs git inside the source directory if given.

hex_encode

Converts T into a hexadecimal String.

is_aix_shared_archive 🔒

is_debug_info

Returns true if the file name given looks like a debug info file

is_dylib

Returns true if the file name given looks like a dynamic library.

is_valid_test_suite_arg

libdir

Returns the corresponding relative library directory that the compiler’s dylibs will be found in.

linker_args

Returns the linker arguments for rustc/rustdoc for the given builder and target.

linker_flags

Returns the linker arguments for rustc/rustdoc for the given builder and target, without the -Clinker flag.

lld_flag_no_threads 🔒

Returns a flag that configures LLD to use only a single thread. If we use an external LLD, we need to find out which version is it to know which flag should we pass to it (LLD older than version 10 had a different flag).

make

move_file

Rename a file if from and to are in the same filesystem or copy and remove the file otherwise

mtime

Returns the last-modified time for path, or zero if it doesn’t exist.

output

set_file_times

Sets the file times for a given file at path.

split_debuginfo

Returns the path to the split debug info for the specified file if it exists.

start_process

Spawn a process and return a closure that will wait for the process to finish and then return its output. This allows the spawned process to do work without immediately blocking bootstrap.

submodule_path_of

Return the path to the containing submodule if available.

symlink_dir

Symlinks two directories, using junctions on Windows and normal symlinks on Unix.

target_supports_cranelift_backend

timeit

Returns an RAII structure that prints out how long it took to drop.

unhashed_basename

Returns the filename without the hash prefix added by the cc crate.

up_to_date

Returns true if dst is up to date given that the file or files in src are used to generate it.

use_host_linker