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#!/usr/bin/env python3
import subprocess
import string
import os
import stat
import re
distcc_dir = "@prefix@/lib/distcc"
GCC_LIBEXEC_DIRS = (
'/usr/lib/gcc', # Debian native GCC compilers
'/usr/lib/gcc-cross', # Debian GCC cross-compilers
'/usr/libexec/gcc', # rpm-based distros
)
old_symlinks = set()
new_symlinks = set()
standard_names = ["cc", "c++", "c89", "c99"]
if not os.access(distcc_dir, os.X_OK):
os.mkdir(distcc_dir)
def consider(name):
if os.access(f"/usr/bin/{name}", os.X_OK):
new_symlinks.add(name)
print(name)
def consider_gcc(prefix, suffix=""):
consider(f"{prefix}gcc{suffix}")
consider(f"{prefix}g++{suffix}")
def consider_clang(suffix):
consider(f"clang{suffix}")
consider(f"clang++{suffix}")
for x in standard_names:
consider(x)
consider_gcc("")
consider_gcc("c89-")
consider_gcc("c99-")
def sloppy_listdir(thedir):
try:
return os.listdir(thedir)
except FileNotFoundError:
pass
except NotADirectoryError:
pass
return []
def scan_gcc_libexec(gcc_dir):
for gnu_host in sloppy_listdir(gcc_dir):
consider_gcc(f"{gnu_host}-")
for version in sloppy_listdir(gcc_dir + "/" + gnu_host):
consider_gcc("", f"-{version}")
consider_gcc(f"{gnu_host}-", f"-{version}")
for gcc_dir in GCC_LIBEXEC_DIRS:
scan_gcc_libexec(gcc_dir)
consider_clang("")
for ent in os.listdir("/usr/lib"):
if ent.startswith("llvm-"):
version = ent.split("-")[1]
consider_clang(f"-{version}")
for name in os.listdir(distcc_dir):
mode = os.lstat(distcc_dir + "/" + name).st_mode
if stat.S_ISLNK(mode):
if os.access(distcc_dir + "/" + name, os.X_OK):
old_symlinks.add(name)
else:
os.unlink(distcc_dir + "/" + name)
for link in old_symlinks:
if link not in new_symlinks:
os.unlink(distcc_dir + "/" + link)
for link in new_symlinks:
if link not in old_symlinks:
os.symlink("../../bin/distcc", distcc_dir + "/" + link)
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