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343 changes: 186 additions & 157 deletions install_requirements.py
Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,9 @@
# LICENSE file in the root directory of this source tree.


import argparse
import glob
import itertools
import os
import platform
import re
Expand Down Expand Up @@ -63,69 +65,20 @@ def python_is_compatible():
return True


if not python_is_compatible():
sys.exit(1)
def clean():
print("Cleaning build artifacts...")
print("Cleaning pip-out/...")
shutil.rmtree("pip-out/", ignore_errors=True)
dirs = glob.glob("cmake-out*/") + glob.glob("cmake-android-out/")
for d in dirs:
print(f"Cleaning {d}...")
shutil.rmtree(d, ignore_errors=True)
print("Done cleaning build artifacts.")

# Parse options.

EXECUTORCH_BUILD_PYBIND = ""
CMAKE_ARGS = os.getenv("CMAKE_ARGS", "")
CMAKE_BUILD_ARGS = os.getenv("CMAKE_BUILD_ARGS", "")
USE_PYTORCH_NIGHTLY = True

args = sys.argv[1:]
for arg in args:
if arg == "--pybind":
pass
elif arg in ["coreml", "mps", "xnnpack"]:
if "--pybind" in args:
arg_upper = arg.upper()
EXECUTORCH_BUILD_PYBIND = "ON"
CMAKE_ARGS += f" -DEXECUTORCH_BUILD_{arg_upper}=ON"
else:
print(f"Error: {arg} must follow --pybind")
sys.exit(1)
elif arg == "off":
if "--pybind" in args:
if EXECUTORCH_BUILD_PYBIND == "ON":
print("Cannot turnoff pybind option as it is already set.")
sys.exit(1)
EXECUTORCH_BUILD_PYBIND = "OFF"
else:
print(f"Error: {arg} must follow --pybind")
sys.exit(1)

elif arg == "--clean":
print("Cleaning build artifacts...")
print("Cleaning pip-out/...")
shutil.rmtree("pip-out/", ignore_errors=True)
dirs = glob.glob("cmake-out*/") + glob.glob("cmake-android-out/")
for d in dirs:
print(f"Cleaning {d}...")
shutil.rmtree(d, ignore_errors=True)
print("Done cleaning build artifacts.")
sys.exit(0)
elif arg == "--use-pt-pinned-commit":
# This option is used in CI to make sure that PyTorch build from the pinned commit
# is used instead of nightly. CI jobs wouldn't be able to catch regression from the
# latest PT commit otherwise
USE_PYTORCH_NIGHTLY = False
else:
print(f"Error: Unknown option {arg}")
sys.exit(1)

# If --pybind is not set explicitly for backends (e.g., --pybind xnnpack)
# or is not turned off explicitly (--pybind off)
# then install XNNPACK by default.
if EXECUTORCH_BUILD_PYBIND == "":
EXECUTORCH_BUILD_PYBIND = "ON"
CMAKE_ARGS += " -DEXECUTORCH_BUILD_XNNPACK=ON"
# The pip repository that hosts nightly torch packages.
TORCH_NIGHTLY_URL = "https://download.pytorch.org/whl/nightly/cpu"

# Use ClangCL on Windows.
# ClangCL is an alias to Clang that configures it to work in an MSVC-compatible
# mode. Using it on Windows to avoid compiler compatibility issues for MSVC.
if os.name == "nt":
CMAKE_ARGS += " -T ClangCL"

# Since ExecuTorch often uses main-branch features of pytorch, only the nightly
# pip versions will have the required features.
Expand All @@ -135,103 +88,179 @@ def python_is_compatible():
# package versions.
NIGHTLY_VERSION = "dev20250104"

# The pip repository that hosts nightly torch packages.
TORCH_NIGHTLY_URL = "https://download.pytorch.org/whl/nightly/cpu"

# pip packages needed by exir.
EXIR_REQUIREMENTS = [
# Setting USE_PYTORCH_NIGHTLY to false to test the pinned PyTorch commit. Note
# that we don't need to set any version number there because they have already
# been installed on CI before this step, so pip won't reinstall them
f"torch==2.6.0.{NIGHTLY_VERSION}" if USE_PYTORCH_NIGHTLY else "torch",
(
f"torchvision==0.22.0.{NIGHTLY_VERSION}"
if USE_PYTORCH_NIGHTLY
else "torchvision"
), # For testing.
"typing-extensions",
]

# pip packages needed to run examples.
# TODO: Make each example publish its own requirements.txt
EXAMPLES_REQUIREMENTS = [
"timm==1.0.7",
f"torchaudio==2.6.0.{NIGHTLY_VERSION}" if USE_PYTORCH_NIGHTLY else "torchaudio",
"torchsr==1.0.4",
"transformers==4.47.1",
]

# pip packages needed for development.
DEVEL_REQUIREMENTS = [
"cmake", # For building binary targets.
"pip>=23", # For building the pip package.
"pyyaml", # Imported by the kernel codegen tools.
"setuptools>=63", # For building the pip package.
"tomli", # Imported by extract_sources.py when using python < 3.11.
"wheel", # For building the pip package archive.
"zstd", # Imported by resolve_buck.py.
"ai-edge-model-explorer>=0.1.16", # For visualizing ExportedPrograms
]

# Assemble the list of requirements to actually install.
# TODO: Add options for reducing the number of requirements.
REQUIREMENTS_TO_INSTALL = EXIR_REQUIREMENTS + DEVEL_REQUIREMENTS + EXAMPLES_REQUIREMENTS

# Install the requirements. `--extra-index-url` tells pip to look for package
# versions on the provided URL if they aren't available on the default URL.
subprocess.run(
[
sys.executable,
"-m",
"pip",
"install",
*REQUIREMENTS_TO_INSTALL,
"--extra-index-url",
TORCH_NIGHTLY_URL,
],
check=True,
)

LOCAL_REQUIREMENTS = [
"third-party/ao", # We need the latest kernels for fast iteration, so not relying on pypi.
]

# Install packages directly from local copy instead of pypi.
# This is usually not recommended.
subprocess.run(
[
sys.executable,
"-m",
"pip",
"install",
*LOCAL_REQUIREMENTS,
],
check=True,
)
def install_requirements(use_pytorch_nightly):
# pip packages needed by exir.
EXIR_REQUIREMENTS = [
# Setting use_pytorch_nightly to false to test the pinned PyTorch commit. Note
# that we don't need to set any version number there because they have already
# been installed on CI before this step, so pip won't reinstall them
f"torch==2.6.0.{NIGHTLY_VERSION}" if use_pytorch_nightly else "torch",
(
f"torchvision==0.22.0.{NIGHTLY_VERSION}"
if use_pytorch_nightly
else "torchvision"
), # For testing.
"typing-extensions",
]

# pip packages needed to run examples.
# TODO: Make each example publish its own requirements.txt
EXAMPLES_REQUIREMENTS = [
"timm==1.0.7",
f"torchaudio==2.6.0.{NIGHTLY_VERSION}" if use_pytorch_nightly else "torchaudio",
"torchsr==1.0.4",
"transformers==4.47.1",
]

# pip packages needed for development.
DEVEL_REQUIREMENTS = [
"cmake", # For building binary targets.
"pip>=23", # For building the pip package.
"pyyaml", # Imported by the kernel codegen tools.
"setuptools>=63", # For building the pip package.
"tomli", # Imported by extract_sources.py when using python < 3.11.
"wheel", # For building the pip package archive.
"zstd", # Imported by resolve_buck.py.
"ai-edge-model-explorer>=0.1.16", # For visualizing ExportedPrograms
]

# Assemble the list of requirements to actually install.
# TODO: Add options for reducing the number of requirements.
REQUIREMENTS_TO_INSTALL = (
EXIR_REQUIREMENTS + DEVEL_REQUIREMENTS + EXAMPLES_REQUIREMENTS
)

# Install the requirements. `--extra-index-url` tells pip to look for package
# versions on the provided URL if they aren't available on the default URL.
subprocess.run(
[
sys.executable,
"-m",
"pip",
"install",
*REQUIREMENTS_TO_INSTALL,
"--extra-index-url",
TORCH_NIGHTLY_URL,
],
check=True,
)

LOCAL_REQUIREMENTS = [
"third-party/ao", # We need the latest kernels for fast iteration, so not relying on pypi.
]

# Install packages directly from local copy instead of pypi.
# This is usually not recommended.
subprocess.run(
[
sys.executable,
"-m",
"pip",
"install",
*LOCAL_REQUIREMENTS,
],
check=True,
)


def main(args):
if not python_is_compatible():
sys.exit(1)

# Parse options.

EXECUTORCH_BUILD_PYBIND = ""
CMAKE_ARGS = os.getenv("CMAKE_ARGS", "")
CMAKE_BUILD_ARGS = os.getenv("CMAKE_BUILD_ARGS", "")
use_pytorch_nightly = True

parser = argparse.ArgumentParser(prog="install_requirements")
parser.add_argument(
"--pybind",
action="append",
nargs="+",
help="one or more of coreml/mps/xnnpack, or off",
)
parser.add_argument(
"--clean",
action="store_true",
help="clean build artifacts and pip-out instead of installing",
)
parser.add_argument(
"--use-pt-pinned-commit",
action="store_true",
help="build from the pinned PyTorch commit instead of nightly",
)
args = parser.parse_args(args)
if args.pybind:
# Flatten list of lists.
args.pybind = list(itertools.chain(*args.pybind))
if "off" in args.pybind:
if len(args.pybind) != 1:
raise Exception(
f"Cannot combine `off` with other pybinds: {args.pybind}"
)
EXECUTORCH_BUILD_PYBIND = "OFF"
else:
for pybind_arg in args.pybind:
if pybind_arg not in ["coreml", "mps", "xnnpack"]:
continue
EXECUTORCH_BUILD_PYBIND = "ON"
CMAKE_ARGS += f" -DEXECUTORCH_BUILD_{pybind_arg.upper()}=ON"

if args.clean:
clean()
return

if args.use_pt_pinned_commit:
# This option is used in CI to make sure that PyTorch build from the pinned commit
# is used instead of nightly. CI jobs wouldn't be able to catch regression from the
# latest PT commit otherwise
use_pytorch_nightly = False

install_requirements(use_pytorch_nightly)

# If --pybind is not set explicitly for backends (e.g., --pybind xnnpack)
# or is not turned off explicitly (--pybind off)
# then install XNNPACK by default.
if EXECUTORCH_BUILD_PYBIND == "":
EXECUTORCH_BUILD_PYBIND = "ON"
CMAKE_ARGS += " -DEXECUTORCH_BUILD_XNNPACK=ON"

# Use ClangCL on Windows.
# ClangCL is an alias to Clang that configures it to work in an MSVC-compatible
# mode. Using it on Windows to avoid compiler compatibility issues for MSVC.
if os.name == "nt":
CMAKE_ARGS += " -T ClangCL"

#
# Install executorch pip package. This also makes `flatc` available on the path.
# The --extra-index-url may be necessary if pyproject.toml has a dependency on a
# pre-release or nightly version of a torch package.
#

# Set environment variables
os.environ["EXECUTORCH_BUILD_PYBIND"] = EXECUTORCH_BUILD_PYBIND
os.environ["CMAKE_ARGS"] = CMAKE_ARGS
os.environ["CMAKE_BUILD_ARGS"] = CMAKE_BUILD_ARGS

# Run the pip install command
subprocess.run(
[
sys.executable,
"-m",
"pip",
"install",
".",
"--no-build-isolation",
"-v",
"--extra-index-url",
TORCH_NIGHTLY_URL,
],
check=True,
)

#
# Install executorch pip package. This also makes `flatc` available on the path.
# The --extra-index-url may be necessary if pyproject.toml has a dependency on a
# pre-release or nightly version of a torch package.
#

# Set environment variables
os.environ["EXECUTORCH_BUILD_PYBIND"] = EXECUTORCH_BUILD_PYBIND
os.environ["CMAKE_ARGS"] = CMAKE_ARGS
os.environ["CMAKE_BUILD_ARGS"] = CMAKE_BUILD_ARGS

# Run the pip install command
subprocess.run(
[
sys.executable,
"-m",
"pip",
"install",
".",
"--no-build-isolation",
"-v",
"--extra-index-url",
TORCH_NIGHTLY_URL,
],
check=True,
)
if __name__ == "__main__":
main(sys.argv[1:])
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