88 lines
3.7 KiB
Python
Executable File
88 lines
3.7 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
# buildorder.py - script to generate a build order respecting package dependencies
|
|
|
|
import os, sys
|
|
|
|
def die(msg):
|
|
print('ERROR: ' + msg)
|
|
sys.exit(1)
|
|
|
|
if len(sys.argv) != 1: die('buildorder.py takes no arguments')
|
|
packages_dir = 'packages'
|
|
|
|
class DebianPackage:
|
|
def __init__(self, name):
|
|
self.name = name
|
|
self.remaining_dependencies = set() # String
|
|
self.sub_packages = set() # String
|
|
self.prerequisite_for = set() # Packages that needs this package
|
|
|
|
all_packages = [] # List of all DebianPackage:s
|
|
packages_map = {} # Mapping from package name to DebianPackage (if subpackage, mapping from subpackage name to parent package)
|
|
|
|
for subdir_name in sorted(os.listdir(packages_dir)):
|
|
subdir_path = packages_dir + '/' + subdir_name
|
|
if os.path.exists(subdir_path + '/BROKEN.txt'): continue
|
|
build_sh_path = subdir_path + '/build.sh'
|
|
|
|
this_package = DebianPackage(subdir_name)
|
|
all_packages.append(this_package)
|
|
packages_map[this_package.name] = this_package
|
|
|
|
if not os.path.isfile(build_sh_path): die('The directory ' + subdir_name + ' does not contain build.sh')
|
|
with open(build_sh_path) as build_sh_file:
|
|
for line in build_sh_file:
|
|
if line.startswith('TERMUX_PKG_DEPENDS='):
|
|
deps_comma_separated = line[(line.index('=')+2):(len(line)-2)]
|
|
for dep in deps_comma_separated.split(','):
|
|
dep = dep.strip()
|
|
this_package.remaining_dependencies.add(dep)
|
|
for file_in_subdir_name in sorted(os.listdir(subdir_path)):
|
|
if file_in_subdir_name.endswith('.subpackage.sh'):
|
|
subpackage_name = file_in_subdir_name[0:-len(".subpackage.sh"):]
|
|
this_package.sub_packages.add(subpackage_name)
|
|
packages_map[subpackage_name] = this_package
|
|
with open(subdir_path + '/' + file_in_subdir_name) as subpackage_sh_file:
|
|
for line in subpackage_sh_file:
|
|
if line.startswith('TERMUX_SUBPKG_DEPENDS='):
|
|
deps_comma_separated = line[(line.index('=')+2):(len(line)-2)]
|
|
for dep in deps_comma_separated.split(','):
|
|
dep = dep.strip()
|
|
this_package.remaining_dependencies.add(dep)
|
|
this_package.remaining_dependencies.discard(this_package.name) # Do not depend on itself
|
|
this_package.remaining_dependencies.difference_update(this_package.sub_packages) # Do not depend on any sub package
|
|
|
|
for package in all_packages:
|
|
for remaining in package.remaining_dependencies:
|
|
if not remaining in packages_map: die('Package ' + package.name + ' depends on non-existing package "' + remaining + '"')
|
|
packages_map[remaining].prerequisite_for.add(package)
|
|
|
|
# List of all DebianPackage:s without dependencies
|
|
packages_without_deps = [p for p in all_packages if not p.remaining_dependencies]
|
|
if not packages_without_deps: die('No package without dependency - where to start?')
|
|
|
|
# Sort alphabetically, but with libandroid-support first (since dependency on libandroid-support
|
|
# does not need to be declared explicitly, so anything might in theory depend on it to build):
|
|
packages_without_deps.sort(key=lambda p: 'aaaa' if p.name == 'libandroid-support' else p.name, reverse=True)
|
|
|
|
# Topological sorting
|
|
build_order = []
|
|
while packages_without_deps:
|
|
pkg = packages_without_deps.pop()
|
|
build_order.append(pkg)
|
|
for other_package in pkg.prerequisite_for:
|
|
other_package.remaining_dependencies.discard(pkg.name) # Remove this package
|
|
other_package.remaining_dependencies.difference_update(pkg.sub_packages) # .. and all its subpackages
|
|
if not other_package.remaining_dependencies:
|
|
# Check if the other package is ready to build now
|
|
packages_without_deps.append(other_package)
|
|
|
|
if len(all_packages) != len(build_order):
|
|
print("ERROR: Cycle exists. Remaining: ");
|
|
for pkg in all_packages:
|
|
if pkg not in build_order: print(pkg.name)
|
|
sys.exit(1)
|
|
|
|
for pkg in build_order: print(pkg.name)
|
|
|