make tox env for code-checks

This executes: check-debugging, check-interfaces, check-miscaptures,
find-trailing-spaces, check-umids, pyflakes.

Other changes:

* fix check-umids.py to take starting points. run it as `check-umids.py
  src` instead of `check-umids.py src/allmydata/*.py`
* check-debugging: rewrite in python to run from tox: tox doesn't like
  to run shell scripts.
* put check-interfaces.py last: it produces lots of warnings, but passes
  anyways. The others only produce significant output if they fail.

Makefile

@@ -66,11 +66,15 @@ smoketest:
 
 .PHONY: code-checks
 #code-checks: build version-and-path check-interfaces check-miscaptures -find-trailing-spaces -check-umids pyflakes
-code-checks: check-debugging check-miscaptures -find-trailing-spaces -check-umids pyflakes
+code-checks: check-interfaces check-debugging check-miscaptures -find-trailing-spaces -check-umids pyflakes
+
+.PHONY: check-interfaces
+	$(PYTHON) misc/coding_tools/check-interfaces.py 2>&1 |tee violations.txt
+	@echo
 
 .PHONY: check-debugging
 check-debugging:
-	misc/coding_tools/check-debugging.sh
+	$(PYTHON) misc/coding_tools/check-debugging.py
 	@echo
 
 .PHONY: check-miscaptures
@@ -120,7 +124,6 @@ count-lines:
 # probably work.
 
 # src/allmydata/test/bench_dirnode.py
-# misc/coding_tools/check-interfaces.py 2>&1 |tee violations.txt
 
 
 # The check-speed and check-grid targets are disabled, since they depend upon

misc/coding_tools/check-debugging.py

@@ -0,0 +1,22 @@
+#! /usr/bin/python
+
+# ./check-debugging.py src
+
+import sys, re, os
+
+ok = True
+umids = {}
+
+for starting_point in sys.argv[1:]:
+    for root, dirs, files in os.walk(starting_point):
+        for fn in [f for f in files if f.endswith(".py")]:
+            fn = os.path.join(root, fn)
+            for lineno,line in enumerate(open(fn, "r").readlines()):
+                lineno = lineno+1
+                mo = re.search(r"\.setDebugging\(True\)", line)
+                if mo:
+                   print "Do not use defer.setDebugging(True) in production"
+                   print "First used here: %s:%d" % (fn, lineno)
+                   sys.exit(1)
+print "No cases of defer.setDebugging(True) were found, good!"
+sys.exit(0)

misc/coding_tools/check-debugging.sh

@@ -1,9 +0,0 @@
-#!/bin/bash
-
-OUTPUT=$(grep -R '\.setDebugging(True)' src/allmydata)
-
-if [[ -n $OUTPUT ]] ; then
-    echo "Do not use defer.setDebugging(True) in production:"
-    echo $OUTPUT
-    exit 1
-fi

misc/coding_tools/check-umids.py

@@ -1,14 +1,16 @@
 #! /usr/bin/python
 
-# ./rumid.py foo.py
+# ./check-umids.py src
 
 import sys, re, os
 
 ok = True
 umids = {}
 
-for fn in sys.argv[1:]:
-    fn = os.path.abspath(fn)
+for starting_point in sys.argv[1:]:
+    for root, dirs, files in os.walk(starting_point):
+        for fn in [f for f in files if f.endswith(".py")]:
+            fn = os.path.join(root, fn)
             for lineno,line in enumerate(open(fn, "r").readlines()):
                 lineno = lineno+1
                 if "umid" not in line:

tox.ini

@@ -26,6 +26,20 @@ commands =
          tahoe --version
          coverage run --branch -m allmydata.test.run_trial --rterrors --reporter=timing {posargs:allmydata}
 
+[testenv:codechecks]
+passenv = USERPROFILE HOMEDRIVE HOMEPATH
+skip_install = True
+deps = --editable=.[test]
+commands =
+         pyflakes src static misc setup.py
+         python misc/coding_tools/check-umids.py src
+         python misc/coding_tools/check-debugging.py
+         python misc/coding_tools/find-trailing-spaces.py -r src static misc setup.py
+         python misc/coding_tools/check-miscaptures.py
+         # note: check-interfaces.py imports everything, so it must be run
+         # from a populated virtualenv
+         python misc/coding_tools/check-interfaces.py
+
 [testenv:deprecations]
 basepython=python2.7
 passenv = USERPROFILE HOMEDRIVE HOMEPATH