mirror of
https://github.com/rclone/rclone.git
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6ade1055d5
This now compiles rclone with CGO_ENABLED=0 which is closer to the release compile. It also removes pikpak if testing s3 as the two depend on each other.
85 lines
2.5 KiB
Python
Executable File
85 lines
2.5 KiB
Python
Executable File
#!/usr/bin/env python3
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"""
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Test the sizes in the rclone binary of each backend by compiling
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rclone with and without the backend and measuring the difference.
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Run with no arguments to test all backends or a supply a list of
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backends to test.
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"""
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import os
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import re
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import sys
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import subprocess
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all_backends = "backend/all/all.go"
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# compile command which is more or less like the production builds
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compile_command = ["go", "build", "--ldflags", "-s", "-trimpath"]
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# disable CGO as that makes a lot of difference to binary size
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os.environ["CGO_ENABLED"]="0"
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match_backend = re.compile(r'"github.com/rclone/rclone/backend/(.*?)"')
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def read_backends():
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"""
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Reads the backends file, returning a list of backends and the original file
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"""
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with open(all_backends) as fd:
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orig_all = fd.read()
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# find the backends
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backends = []
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for line in orig_all.split("\n"):
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match = match_backend.search(line)
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if match:
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backends.append(match.group(1))
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return backends, orig_all
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def write_all(orig_all, backend):
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"""
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Write the all backends file without the backend given
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"""
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with open(all_backends, "w") as fd:
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for line in orig_all.split("\n"):
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match = re.search(r'"github.com/rclone/rclone/backend/(.*?)"', line)
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# Comment out line matching backend
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if match and match.group(1) == backend:
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line = "// " + line
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# s3 and pikpak depend on each other
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if backend == "s3" and "pikpak" in line:
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line = "// " + line
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fd.write(line+"\n")
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def compile():
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"""
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Compile the binary, returning the size
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"""
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subprocess.check_call(compile_command)
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return os.stat("rclone").st_size
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def main():
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# change directory to the one with this script in
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os.chdir(os.path.dirname(os.path.abspath(__file__)))
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# change directory to the main rclone source
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os.chdir("..")
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to_test = sys.argv[1:]
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backends, orig_all = read_backends()
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if len(to_test) == 0:
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to_test = backends
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# Compile with all backends
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ref = compile()
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print(f"Total binary size {ref/1024/1024:.3f} MiB")
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print("Backend,Size MiB")
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for test_backend in to_test:
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write_all(orig_all, test_backend)
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new_size = compile()
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print(f"{test_backend},{(ref-new_size)/1024/1024:.3f}")
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# restore all file
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with open(all_backends, "w") as fd:
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fd.write(orig_all)
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if __name__ == "__main__":
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main()
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