83 lines
3.1 KiB
Python
83 lines
3.1 KiB
Python
"""This file contains rules to generate and test the license map"""
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def normalize_target_name(target):
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return target.replace("//", "").replace("/", "__").replace(":", "___")
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def license_map(name, targets = [], opts = [], json_maps = [], **kwargs):
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"""Generate text represantation for pacakges' and libs' licenses
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Args:
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name: of the rule
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targets: list of targets for which licenses should be added the output file.
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The list must not include targets, for which json_map is passed in json_maps parameter
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opts: command line options for license-map.py tool
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json_maps: list of json files. Such files can be produced by node_modules_licenses rule
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for node_modules licenses.
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**kwargs: Args passed through to genrule
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Generate: text file with the name
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gen_license_txt_{name}
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"""
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# Generate XML for all targets that depend directly on a LICENSE file
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xmls = []
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tools = ["//tools/bzl:license-map.py", "//lib:all-licenses"]
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for target in targets:
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subname = name + "_" + normalize_target_name(target) + ".xml"
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xmls.append("$(location :%s)" % subname)
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tools.append(subname)
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native.genquery(
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name = subname,
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scope = [target],
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# Find everything that depends on a license file, but remove
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# the license files themselves from this list.
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expression = 'rdeps(%s, filter("//lib:LICENSE.*", deps(%s)),1) - filter("//lib:LICENSE.*", deps(%s))' % (target, target, target),
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# We are interested in the edges of the graph ({java_library,
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# license-file} tuples). 'query' provides this in the XML output.
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opts = ["--output=xml"],
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)
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# Add all files from the json_maps list to license-map.py command-line arguments
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json_maps_locations = []
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for json_map in json_maps:
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json_maps_locations.append("--json-map=$(location %s)" % json_map)
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tools.append(json_map)
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# post process the XML into our favorite format.
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native.genrule(
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name = "gen_license_txt_" + name,
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cmd = "python $(location //tools/bzl:license-map.py) %s %s %s > $@" % (" ".join(opts), " ".join(json_maps_locations), " ".join(xmls)),
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outs = [name + ".gen.txt"],
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tools = tools,
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**kwargs
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)
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def license_test(name, target):
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"""Make sure a target doesn't depend on DO_NOT_DISTRIBUTE license"""
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txt = name + "-forbidden.txt"
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# fully qualify target name.
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if target[0] not in ":/":
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target = ":" + target
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if target[0] != "/":
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target = "//" + native.package_name() + target
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forbidden = "//lib:LICENSE-DO_NOT_DISTRIBUTE"
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native.genquery(
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name = txt,
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scope = [target, forbidden],
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# Find everything that depends on a license file, but remove
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# the license files themselves from this list.
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expression = 'rdeps(%s, "%s", 1) - rdeps(%s, "%s", 0)' % (target, forbidden, target, forbidden),
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)
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native.sh_test(
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name = name,
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srcs = ["//tools/bzl:test_license.sh"],
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args = ["$(location :%s)" % txt],
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data = [txt],
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)
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