161 lines
7.2 KiB
Python
161 lines
7.2 KiB
Python
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#!/usr/bin/python3
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# this is a example how to access the build dependencies of a package
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import sys
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import apt_pkg
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import apt
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# load the apt cache
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cache = apt.Cache()
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# base package that we use for build-depends calculation and output file path
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if len(sys.argv) < 3:
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print("Usage: get_full_builddep_tree.py [Package name] [PATH TO OUTPUT FILE]")
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sys.exit(1)
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try:
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pkg = base = cache[sys.argv[1]]
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except KeyError:
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print("No package %s found" % sys.argv[1])
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sys.exit(1)
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output_file = sys.argv[2]
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# build-dep source_names blacklist
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build_depends_blacklist = []
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# build-dep names blacklist
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build_depends_pkg_names_blacklist = []
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# empty array to store build dependencies
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all_build_depends = []
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# empty array to make sure not to duplicate
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already_proccessed = []
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# empty array to make sure not to waste resources converting already scanned pkg_names
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already_proccessed_pkg_names = []
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# get the build depends for the package itself
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# get source name of argument package from cache
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srcpkg_name = base.candidate.source_name
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if not srcpkg_name:
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print("Can't find source package for '%s'" % pkg.name)
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# reload source records
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srcrecords = apt_pkg.SourceRecords()
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# load source record for argument package
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srcrec = srcrecords.lookup(srcpkg_name)
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if srcrec:
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# get build_depends as a dict
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bd_dict = srcrecords.build_depends
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try:
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# load key "Build-Depends" from bd_dict
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bd = bd_dict["Build-Depends"]
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for b in bd:
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for package in b:
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# parse every key into the needed 3 values
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name, version, comparator = package
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try:
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# if build-dep name isn't already processed or blacklisted
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if not name in already_proccessed_pkg_names and not name in build_depends_pkg_names_blacklist:
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# load build-dep from cache
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apt_package = cache[name]
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# get build-dep source name
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pkg_source_name = apt_package.candidate.source_name
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# if source package isn't blacklisted or already processed
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if not pkg_source_name in already_proccessed and not pkg_source_name in build_depends_blacklist:
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# then
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# add the source package to the build_depends array
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all_build_depends.append(pkg_source_name)
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# and declare it already proccessed
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already_proccessed.append(pkg_source_name)
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except:
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continue
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except:
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pass
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try:
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# load key "Build-Depends-Indep" from bd_dict
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bd_indep = bd_dict["Build-Depends-Indep"]
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for b in bd_indep:
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# parse every key into the needed 3 values
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name, version, comparator = package
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try:
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# if build-dep name isn't already processed or blacklisted
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if not name in already_proccessed_pkg_names and not name in build_depends_pkg_names_blacklist:
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# load build-dep from cache
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apt_package = cache[name]
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# get build-dep source name
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pkg_source_name = apt_package.candidate.source_name
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# if source package isn't blacklisted or already processed
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if not pkg_source_name in already_proccessed and not pkg_source_name in build_depends_blacklist:
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# then
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# add the source package to the build_depends array
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all_build_depends.append(pkg_source_name)
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# and declare it already proccessed
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already_proccessed.append(pkg_source_name)
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except:
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continue
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except:
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pass
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for bd in all_build_depends:
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# parent build-dep position in array
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bd_position = all_build_depends.index(bd)
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# reload source records
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srcrecords = apt_pkg.SourceRecords()
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# load source record for argument package
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srcrec = srcrecords.lookup(bd)
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if srcrec:
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# get build_depends as a dict
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bd_dict = srcrecords.build_depends
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try:
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# load key "Build-Depends" from bd_dict
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bd = bd_dict["Build-Depends"]
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for b in bd:
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for package in b:
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# parse every key into the needed 3 values
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name, version, comparator = package
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try:
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# if build-dep name isn't already processed or blacklisted
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if not name in already_proccessed_pkg_names and not name in build_depends_pkg_names_blacklist:
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# load build-dep from cache
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apt_package = cache[name]
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# get build-dep source name
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pkg_source_name = apt_package.candidate.source_name
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# if source package isn't blacklisted or already processed
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if not pkg_source_name in already_proccessed and not pkg_source_name in build_depends_blacklist:
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# then
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# add the source package to the build_depends array after it's parent position
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all_build_depends.insert(bd_position, pkg_source_name)
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# and declare it already proccessed
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already_proccessed.append(pkg_source_name)
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except:
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continue
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except:
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continue
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try:
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# load key "Build-Depends-Indep" from bd_dict
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bd_indep = bd_dict["Build-Depends-Indep"]
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for b in bd_indep:
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for package in b:
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# parse every key into the needed 3 values
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name, version, comparator = package
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try:
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# if build-dep name isn't already processed or blacklisted
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if not name in already_proccessed_pkg_names and not name in build_depends_pkg_names_blacklist:
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# load build-dep from cache
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apt_package = cache[name]
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# get build-dep source name
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pkg_source_name = apt_package.candidate.source_name
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# if source package isn't blacklisted or already processed
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if not pkg_source_name in already_proccessed and not pkg_source_name in build_depends_blacklist:
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# then
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# add the source package to the build_depends array after it's parent position
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all_build_depends.insert(bd_position, pkg_source_name)
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# and declare it already proccessed
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already_proccessed.append(pkg_source_name)
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except:
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continue
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except:
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continue
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# write result to output file
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f = open(output_file, "a")
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for line in all_build_depends:
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f.write(f"{line}\n")
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