diff --git a/buildorder.py b/buildorder.py index 1cd6f3d4b..a8f3768e4 100755 --- a/buildorder.py +++ b/buildorder.py @@ -1,85 +1,113 @@ #!/usr/bin/env python3 # buildorder.py - script to generate a build order respecting package dependencies -import os, sys +import os +import sys -def die(msg): sys.exit('ERROR: ' + msg) -if len(sys.argv) != 1: die('buildorder.py takes no arguments') +def die(msg): + sys.exit('ERROR: ' + msg) -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) +if len(sys.argv) != 1: + die('buildorder.py takes no arguments') + + +class DebianPackage(object): + 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 + +# List of all DebianPackage:s +all_packages = [] + +# Mapping from package name to DebianPackage +# (if subpackage, mapping from subpackage name to parent package) +packages_map = {} packages_dir = 'packages' + + 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' + subdir_path = packages_dir + '/' + subdir_name - this_package = DebianPackage(subdir_name) - all_packages.append(this_package) - packages_map[this_package.name] = this_package + if os.path.exists(subdir_path + '/BROKEN.txt'): + continue - 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() - if not dep.endswith('libandroid-support-dev'): 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 + 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() + if not dep.endswith('libandroid-support-dev'): + 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) + # Do not depend on itself + this_package.remaining_dependencies.discard(this_package.name) + # Do not depend on any sub package + this_package.remaining_dependencies.difference_update(this_package.sub_packages) 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) + for remaining in package.remaining_dependencies: + if remaining not 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?') +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) + +packages_without_deps.sort( + key=lambda p: '' 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) + pkg = packages_without_deps.pop() + build_order.append(pkg) + for other_package in pkg.prerequisite_for: + # Remove this package + other_package.remaining_dependencies.discard(pkg.name) + # .. and all its subpackages + other_package.remaining_dependencies.difference_update(pkg.sub_packages) + 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) + 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)