tc-build: Switch to ruff for Python formatting

We started using ruff for linting a while ago. Since then, it has grown
a formatting option, which is quite fast. While it is a little less
flexible than YAPF, we don't customize it much other than style and line
length, the latter of which ruff also allows us to customize.

Switch to ruff for formatting. Most of the changes end up making the
code a little more readable, at the expense of some extra lines. Switch
to the generic fmt comments instead of the yapf specific ones. Use the
option to preserve our quoting style, which uses single quotes for
string literals and double quotes for f-string or raw strings.

Signed-off-by: Nathan Chancellor <nathan@kernel.org>

Author: nathanchance

.style.yapf

@@ -158,7 +158,7 @@ Run `./build-rust.py -h` for more options and information.
 
 This repository openly welcomes pull requests! There are a few presubmit checks that run to make sure the code stays consistently formatted and free of bugs.
 
-1. All Python files must be passed through [`ruff`](https://github.com/astral-sh/ruff) for linting and [`yapf`](https://github.com/google/yapf) for style.
+1. All Python files must be passed through [`ruff`](https://github.com/astral-sh/ruff) for linting and style via `ruff check .` and `ruff format .`.
 
 2. All shell files must be passed through [`shellcheck`](https://github.com/koalaman/shellcheck) for linting and [`shfmt`](https://github.com/mvdan/sh) (specifically `shfmt -ci -i 4 -w`) for style.
 

README.md

@@ -11,51 +11,62 @@
 LATEST_BINUTILS_RELEASE = (2, 46, 0)
 
 parser = ArgumentParser()
-parser.add_argument('-B',
-                    '--binutils-folder',
-                    help='''
+parser.add_argument(
+    '-B',
+    '--binutils-folder',
+    help='''
                     By default, the script will download a copy of the binutils source in the src folder within
                     the same folder as this script. If you have your own copy of the binutils source that you
                     would like to build from, pass it to this parameter. It can be either an absolute or
                     relative path.
                     ''',
-                    type=str)
-parser.add_argument('-b',
-                    '--build-folder',
-                    help='''
+    type=str,
+)
+parser.add_argument(
+    '-b',
+    '--build-folder',
+    help='''
                     By default, the script will create a "build/binutils" folder in the same folder as this
                     script then build each target in its own folder within that containing folder. If you
                     would like the containing build folder to be somewhere else, pass it to this parameter.
                     that done somewhere else, pass it to this parameter. It can be either an absolute or
                     relative path.
                     ''',
-                    type=str)
-parser.add_argument('-i',
-                    '--install-folder',
-                    help='''
+    type=str,
+)
+parser.add_argument(
+    '-i',
+    '--install-folder',
+    help='''
                     By default, the script will build binutils but stop before installing it. To install
                     them into a prefix, pass it to this parameter. This can be either an absolute or
                     relative path.
                     ''',
-                    type=str)
-parser.add_argument('-m',
-                    '--march',
-                    metavar='ARCH',
-                    help='''
+    type=str,
+)
+parser.add_argument(
+    '-m',
+    '--march',
+    metavar='ARCH',
+    help='''
                     Add -march=ARCH to CFLAGS to optimize the toolchain for the processor that it will be
                     running on.
                     ''',
-                    type=str)
-parser.add_argument('--show-build-commands',
-                    help='''
+    type=str,
+)
+parser.add_argument(
+    '--show-build-commands',
+    help='''
                     By default, the script only shows the output of the comands it is running. When this option
                     is enabled, the invocations of configure and make will be shown to help with reproducing
                     issues outside of the script.
                     ''',
-                    action='store_true')
-parser.add_argument('-t',
-                    '--targets',
-                    help='''
+    action='store_true',
+)
+parser.add_argument(
+    '-t',
+    '--targets',
+    help='''
                     The script can build binutils targeting arm-linux-gnueabi, aarch64-linux-gnu,
                     mips-linux-gnu, mipsel-linux-gnu, powerpc-linux-gnu, powerpc64-linux-gnu,
                     powerpc64le-linux-gnu, riscv64-linux-gnu, s390x-linux-gnu, and x86_64-linux-gnu.
@@ -64,7 +75,8 @@
                     specific targets only, pass them to this script. It can be either the full target
                     or just the first part (arm, aarch64, x86_64, etc).
                     ''',
-                    nargs='+')
+    nargs='+',
+)
 args = parser.parse_args()
 
 script_start = time.time()