Delete java-layers.py
There are no usages of LOCAL_JAVA_LAYERS_FILE,
and java-layers.py was written in python 2.
Bug: 203436762
Test: Presubmits
Change-Id: I1be0f2547757a853e20811f28529479487037e94
diff --git a/core/clear_vars.mk b/core/clear_vars.mk
index 8fe5214..e325760 100644
--- a/core/clear_vars.mk
+++ b/core/clear_vars.mk
@@ -153,7 +153,6 @@
LOCAL_JAR_PROCESSOR_ARGS:=
LOCAL_JAVACFLAGS:=
LOCAL_JAVA_LANGUAGE_VERSION:=
-LOCAL_JAVA_LAYERS_FILE:=
LOCAL_JAVA_LIBRARIES:=
LOCAL_JAVA_RESOURCE_DIRS:=
LOCAL_JAVA_RESOURCE_FILES:=
diff --git a/core/definitions.mk b/core/definitions.mk
index 98fdd6c..afa7f7b 100644
--- a/core/definitions.mk
+++ b/core/definitions.mk
@@ -2604,8 +2604,6 @@
$(if $(PRIVATE_SRCJARS),\@$(PRIVATE_SRCJAR_LIST_FILE)) \
|| ( rm -rf $(PRIVATE_CLASS_INTERMEDIATES_DIR) ; exit 41 ) \
fi
-$(if $(PRIVATE_JAVA_LAYERS_FILE), $(hide) build/make/tools/java-layers.py \
- $(PRIVATE_JAVA_LAYERS_FILE) @$(PRIVATE_JAVA_SOURCE_LIST),)
$(if $(PRIVATE_JAR_EXCLUDE_FILES), $(hide) find $(PRIVATE_CLASS_INTERMEDIATES_DIR) \
-name $(word 1, $(PRIVATE_JAR_EXCLUDE_FILES)) \
$(addprefix -o -name , $(wordlist 2, 999, $(PRIVATE_JAR_EXCLUDE_FILES))) \
diff --git a/core/host_java_library.mk b/core/host_java_library.mk
index 0f95202..89aa53c 100644
--- a/core/host_java_library.mk
+++ b/core/host_java_library.mk
@@ -56,10 +56,6 @@
include $(BUILD_SYSTEM)/java_common.mk
-# The layers file allows you to enforce a layering between java packages.
-# Run build/make/tools/java-layers.py for more details.
-layers_file := $(addprefix $(LOCAL_PATH)/, $(LOCAL_JAVA_LAYERS_FILE))
-
# List of dependencies for anything that needs all java sources in place
java_sources_deps := \
$(java_sources) \
@@ -72,7 +68,6 @@
# TODO(b/143658984): goma can't handle the --system argument to javac.
#$(full_classes_compiled_jar): .KATI_NINJA_POOL := $(GOMA_POOL)
-$(full_classes_compiled_jar): PRIVATE_JAVA_LAYERS_FILE := $(layers_file)
$(full_classes_compiled_jar): PRIVATE_JAVACFLAGS := $(LOCAL_JAVACFLAGS) $(annotation_processor_flags)
$(full_classes_compiled_jar): PRIVATE_JAR_EXCLUDE_FILES :=
$(full_classes_compiled_jar): PRIVATE_JAR_PACKAGES :=
diff --git a/core/java.mk b/core/java.mk
index 01951c0..b13ef4d 100644
--- a/core/java.mk
+++ b/core/java.mk
@@ -200,10 +200,6 @@
$(eval $(call copy-one-file,$(full_classes_jar),$(full_classes_stubs_jar)))
ALL_MODULES.$(my_register_name).STUBS := $(full_classes_stubs_jar)
-# The layers file allows you to enforce a layering between java packages.
-# Run build/make/tools/java-layers.py for more details.
-layers_file := $(addprefix $(LOCAL_PATH)/, $(LOCAL_JAVA_LAYERS_FILE))
-$(full_classes_compiled_jar): PRIVATE_JAVA_LAYERS_FILE := $(layers_file)
$(full_classes_compiled_jar): PRIVATE_WARNINGS_ENABLE := $(LOCAL_WARNINGS_ENABLE)
# Compile the java files to a .jar file.
diff --git a/tools/java-layers.py b/tools/java-layers.py
deleted file mode 100755
index b3aec2b..0000000
--- a/tools/java-layers.py
+++ /dev/null
@@ -1,257 +0,0 @@
-#!/usr/bin/env python
-
-import os
-import re
-import sys
-
-def fail_with_usage():
- sys.stderr.write("usage: java-layers.py DEPENDENCY_FILE SOURCE_DIRECTORIES...\n")
- sys.stderr.write("\n")
- sys.stderr.write("Enforces layering between java packages. Scans\n")
- sys.stderr.write("DIRECTORY and prints errors when the packages violate\n")
- sys.stderr.write("the rules defined in the DEPENDENCY_FILE.\n")
- sys.stderr.write("\n")
- sys.stderr.write("Prints a warning when an unknown package is encountered\n")
- sys.stderr.write("on the assumption that it should fit somewhere into the\n")
- sys.stderr.write("layering.\n")
- sys.stderr.write("\n")
- sys.stderr.write("DEPENDENCY_FILE format\n")
- sys.stderr.write(" - # starts comment\n")
- sys.stderr.write(" - Lines consisting of two java package names: The\n")
- sys.stderr.write(" first package listed must not contain any references\n")
- sys.stderr.write(" to any classes present in the second package, or any\n")
- sys.stderr.write(" of its dependencies.\n")
- sys.stderr.write(" - Lines consisting of one java package name: The\n")
- sys.stderr.write(" packge is assumed to be a high level package and\n")
- sys.stderr.write(" nothing may depend on it.\n")
- sys.stderr.write(" - Lines consisting of a dash (+) followed by one java\n")
- sys.stderr.write(" package name: The package is considered a low level\n")
- sys.stderr.write(" package and may not import any of the other packages\n")
- sys.stderr.write(" listed in the dependency file.\n")
- sys.stderr.write(" - Lines consisting of a plus (-) followed by one java\n")
- sys.stderr.write(" package name: The package is considered \'legacy\'\n")
- sys.stderr.write(" and excluded from errors.\n")
- sys.stderr.write("\n")
- sys.exit(1)
-
-class Dependency:
- def __init__(self, filename, lineno, lower, top, lowlevel, legacy):
- self.filename = filename
- self.lineno = lineno
- self.lower = lower
- self.top = top
- self.lowlevel = lowlevel
- self.legacy = legacy
- self.uppers = []
- self.transitive = set()
-
- def matches(self, imp):
- for d in self.transitive:
- if imp.startswith(d):
- return True
- return False
-
-class Dependencies:
- def __init__(self, deps):
- def recurse(obj, dep, visited):
- global err
- if dep in visited:
- sys.stderr.write("%s:%d: Circular dependency found:\n"
- % (dep.filename, dep.lineno))
- for v in visited:
- sys.stderr.write("%s:%d: Dependency: %s\n"
- % (v.filename, v.lineno, v.lower))
- err = True
- return
- visited.append(dep)
- for upper in dep.uppers:
- obj.transitive.add(upper)
- if upper in deps:
- recurse(obj, deps[upper], visited)
- self.deps = deps
- self.parts = [(dep.lower.split('.'),dep) for dep in deps.itervalues()]
- # transitive closure of dependencies
- for dep in deps.itervalues():
- recurse(dep, dep, [])
- # disallow everything from the low level components
- for dep in deps.itervalues():
- if dep.lowlevel:
- for d in deps.itervalues():
- if dep != d and not d.legacy:
- dep.transitive.add(d.lower)
- # disallow the 'top' components everywhere but in their own package
- for dep in deps.itervalues():
- if dep.top and not dep.legacy:
- for d in deps.itervalues():
- if dep != d and not d.legacy:
- d.transitive.add(dep.lower)
- for dep in deps.itervalues():
- dep.transitive = set([x+"." for x in dep.transitive])
- if False:
- for dep in deps.itervalues():
- print "-->", dep.lower, "-->", dep.transitive
-
- # Lookup the dep object for the given package. If pkg is a subpackage
- # of one with a rule, that one will be returned. If no matches are found,
- # None is returned.
- def lookup(self, pkg):
- # Returns the number of parts that match
- def compare_parts(parts, pkg):
- if len(parts) > len(pkg):
- return 0
- n = 0
- for i in range(0, len(parts)):
- if parts[i] != pkg[i]:
- return 0
- n = n + 1
- return n
- pkg = pkg.split(".")
- matched = 0
- result = None
- for (parts,dep) in self.parts:
- x = compare_parts(parts, pkg)
- if x > matched:
- matched = x
- result = dep
- return result
-
-def parse_dependency_file(filename):
- global err
- f = file(filename)
- lines = f.readlines()
- f.close()
- def lineno(s, i):
- i[0] = i[0] + 1
- return (i[0],s)
- n = [0]
- lines = [lineno(x,n) for x in lines]
- lines = [(n,s.split("#")[0].strip()) for (n,s) in lines]
- lines = [(n,s) for (n,s) in lines if len(s) > 0]
- lines = [(n,s.split()) for (n,s) in lines]
- deps = {}
- for n,words in lines:
- if len(words) == 1:
- lower = words[0]
- top = True
- legacy = False
- lowlevel = False
- if lower[0] == '+':
- lower = lower[1:]
- top = False
- lowlevel = True
- elif lower[0] == '-':
- lower = lower[1:]
- legacy = True
- if lower in deps:
- sys.stderr.write(("%s:%d: Package '%s' already defined on"
- + " line %d.\n") % (filename, n, lower, deps[lower].lineno))
- err = True
- else:
- deps[lower] = Dependency(filename, n, lower, top, lowlevel, legacy)
- elif len(words) == 2:
- lower = words[0]
- upper = words[1]
- if lower in deps:
- dep = deps[lower]
- if dep.top:
- sys.stderr.write(("%s:%d: Can't add dependency to top level package "
- + "'%s'\n") % (filename, n, lower))
- err = True
- else:
- dep = Dependency(filename, n, lower, False, False, False)
- deps[lower] = dep
- dep.uppers.append(upper)
- else:
- sys.stderr.write("%s:%d: Too many words on line starting at \'%s\'\n" % (
- filename, n, words[2]))
- err = True
- return Dependencies(deps)
-
-def find_java_files(srcs):
- result = []
- for d in srcs:
- if d[0] == '@':
- f = file(d[1:])
- result.extend([fn for fn in [s.strip() for s in f.readlines()]
- if len(fn) != 0])
- f.close()
- else:
- for root, dirs, files in os.walk(d):
- result.extend([os.sep.join((root,f)) for f in files
- if f.lower().endswith(".java")])
- return result
-
-COMMENTS = re.compile("//.*?\n|/\*.*?\*/", re.S)
-PACKAGE = re.compile("package\s+(.*)")
-IMPORT = re.compile("import\s+(.*)")
-
-def examine_java_file(deps, filename):
- global err
- # Yes, this is a crappy java parser. Write a better one if you want to.
- f = file(filename)
- text = f.read()
- f.close()
- text = COMMENTS.sub("", text)
- index = text.find("{")
- if index < 0:
- sys.stderr.write(("%s: Error: Unable to parse java. Can't find class "
- + "declaration.\n") % filename)
- err = True
- return
- text = text[0:index]
- statements = [s.strip() for s in text.split(";")]
- # First comes the package declaration. Then iterate while we see import
- # statements. Anything else is either bad syntax that we don't care about
- # because the compiler will fail, or the beginning of the class declaration.
- m = PACKAGE.match(statements[0])
- if not m:
- sys.stderr.write(("%s: Error: Unable to parse java. Missing package "
- + "statement.\n") % filename)
- err = True
- return
- pkg = m.group(1)
- imports = []
- for statement in statements[1:]:
- m = IMPORT.match(statement)
- if not m:
- break
- imports.append(m.group(1))
- # Do the checking
- if False:
- print filename
- print "'%s' --> %s" % (pkg, imports)
- dep = deps.lookup(pkg)
- if not dep:
- sys.stderr.write(("%s: Error: Package does not appear in dependency file: "
- + "%s\n") % (filename, pkg))
- err = True
- return
- for imp in imports:
- if dep.matches(imp):
- sys.stderr.write("%s: Illegal import in package '%s' of '%s'\n"
- % (filename, pkg, imp))
- err = True
-
-err = False
-
-def main(argv):
- if len(argv) < 3:
- fail_with_usage()
- deps = parse_dependency_file(argv[1])
-
- if err:
- sys.exit(1)
-
- java = find_java_files(argv[2:])
- for filename in java:
- examine_java_file(deps, filename)
-
- if err:
- sys.stderr.write("%s: Using this file as dependency file.\n" % argv[1])
- sys.exit(1)
-
- sys.exit(0)
-
-if __name__ == "__main__":
- main(sys.argv)
-