commit 6b26281b50f25f0175f3ba801951324a30ba7a32 Author: Nick Mathewson nickm@torproject.org Date: Mon Aug 5 17:17:50 2019 -0400

practracker: a violation of a .may_include rule is now a problem.

We treat "0" as the expected number, and warn about everything else. The problem type is "dependency-violation". --- scripts/maint/practracker/practracker.py | 17 ++++++++++++++++- scripts/maint/practracker/problem.py | 17 +++++++++++++++++ 2 files changed, 33 insertions(+), 1 deletion(-)

diff --git a/scripts/maint/practracker/practracker.py b/scripts/maint/practracker/practracker.py index 7e51edb48..66ebb1277 100755 --- a/scripts/maint/practracker/practracker.py +++ b/scripts/maint/practracker/practracker.py @@ -25,6 +25,7 @@ import os, sys import metrics import util import problem +import includes

# The filename of the exceptions file (it should be placed in the practracker directory) EXCEPTIONS_FNAME = "./exceptions.txt" @@ -35,12 +36,15 @@ MAX_FILE_SIZE = 3000 # lines MAX_FUNCTION_SIZE = 100 # lines # Recommended number of #includes MAX_INCLUDE_COUNT = 50 +# Recommended number of dependency violations +MAX_DEP_VIOLATIONS = 0

# Map from problem type to functions that adjust for tolerance TOLERANCE_FNS = { 'include-count': lambda n: int(n*1.1), 'function-size': lambda n: int(n*1.1), - 'file-size': lambda n: int(n*1.02) + 'file-size': lambda n: int(n*1.02), + 'dependency-violation': lambda n: (n+2) }

####################################################### @@ -94,6 +98,7 @@ def consider_metrics_for_file(fname, f): Yield a sequence of problem.Item objects for all of the metrics in 'f'. """ + real_fname = fname # Strip the useless part of the path if fname.startswith(TOR_TOPDIR): fname = fname[len(TOR_TOPDIR):] @@ -112,6 +117,13 @@ def consider_metrics_for_file(fname, f): for item in consider_function_size(fname, f): yield item

+ n = 0 + for item in includes.consider_include_rules(real_fname): + n += 1 + if n: + yield problem.DependencyViolationItem(fname, n) + + HEADER="""\ # Welcome to the exceptions file for Tor's best-practices tracker! # @@ -167,6 +179,8 @@ def main(argv): help="Maximum includes per C file") parser.add_argument("--max-function-size", default=MAX_FUNCTION_SIZE, help="Maximum lines per function") + parser.add_argument("--max-dependency-violations", default=MAX_DEP_VIOLATIONS, + help="Maximum number of dependency violations to allow") parser.add_argument("topdir", default=".", nargs="?", help="Top-level directory for the tor source") args = parser.parse_args(argv[1:]) @@ -183,6 +197,7 @@ def main(argv): filt.addThreshold(problem.FileSizeItem("*", int(args.max_file_size))) filt.addThreshold(problem.IncludeCountItem("*", int(args.max_include_count))) filt.addThreshold(problem.FunctionSizeItem("*", int(args.max_function_size))) + filt.addThreshold(problem.DependencyViolationItem("*", int(args.max_dependency_violations)))

# 1) Get all the .c files we care about files_list = util.get_tor_c_files(TOR_TOPDIR) diff --git a/scripts/maint/practracker/problem.py b/scripts/maint/practracker/problem.py index 73519d446..dafcda86f 100644 --- a/scripts/maint/practracker/problem.py +++ b/scripts/maint/practracker/problem.py @@ -191,6 +191,21 @@ class FunctionSizeItem(Item): def __init__(self, problem_location, metric_value): super(FunctionSizeItem, self).__init__("function-size", problem_location, metric_value)

+class DependencyViolationItem(Item): + """ + Denotes a dependency violation in a .c or .h file. A dependency violation + occurs when a file includes a file from some module that is not listed + in its .may_include file. + + The 'problem_location' is the file that contains the problem. + + The 'metric_value' is the number of forbidden includes. + """ + def __init__(self, problem_location, metric_value): + super(DependencyViolationItem, self).__init__("dependency-violation", + problem_location, + metric_value) + comment_re = re.compile(r'#.*$')

def get_old_problem_from_exception_str(exception_str): @@ -212,5 +227,7 @@ def get_old_problem_from_exception_str(exception_str): return IncludeCountItem(problem_location, metric_value) elif problem_type == "function-size": return FunctionSizeItem(problem_location, metric_value) + elif problem_type == "dependency-violation": + return DependencyViolationItem(problem_location, metric_value) else: raise ValueError("Unknown exception type {!r}".format(orig_str))