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#!/usr/bin/env python3
# Script to check that headers are in a consistent order
# Canonical header order is defined in scripts/HeaderOrder.txt
# Requires Python 3.6 or later
import codecs, glob, os
patterns = [
"include/*.h",
"src/*.cxx",
"lexlib/*.cxx",
"lexers/*.cxx",
"win32/*.cxx",
"gtk/*.cxx",
"curses/*.cxx",
"cocoa/*.mm",
"cocoa/*.h",
"test/unit/*.cxx",
]
def IsHeader(x):
return x.strip().startswith("#") and ("include" in x or "import" in x)
def HeaderFromIncludeLine(s):
#\s*#\s*(include|import)\s+\S+\s*
return s.strip()[1:].strip()[7:].strip()
def ExtractHeaders(filename):
with codecs.open(filename, "r", "windows-1252") as infile:
return [HeaderFromIncludeLine(l) for l in infile if IsHeader(l)]
def CheckFiles(root):
# Find all the lexer source code files
filePaths = []
for p in patterns:
filePaths += glob.glob(os.path.join(root, p))
# The Qt platform code interleaves system and Scintilla headers
#~ filePaths += glob.glob(root + "/qt/ScintillaEditBase/*.cpp")
#~ filePaths += glob.glob(root + "/qt/ScintillaEdit/*.cpp")
#~ print(filePaths)
masterHeaderList = ExtractHeaders(os.path.join(root, "scripts/HeaderOrder.txt"))
orderedPaths = sorted(filePaths, key=str.casefold)
allIncs = set()
for f in orderedPaths:
if "LexCaml" in f: # LexCaml adds system headers in #if to be an external lexer
continue
print(" File ", f)
incs = ExtractHeaders(f)
#~ print("\n".join(incs))
news = set(incs) - set(masterHeaderList)
allIncs = allIncs.union(set(incs))
m = 0
i = 0
while i < len(incs):
if m == len(masterHeaderList):
print("**** extend", incs[i:])
masterHeaderList.extend(incs[i:])
break
if masterHeaderList[m] == incs[i]:
#~ print("equal", masterHeaderList[m])
i += 1
m += 1
else:
if masterHeaderList[m] not in incs:
#~ print("skip", masterHeaderList[m])
m += 1
elif incs[i] not in masterHeaderList:
print(f + ":1: Add master", incs[i])
masterHeaderList.insert(m, incs[i])
i += 1
m += 1
else:
print(f + ":1: Header out of order", incs[i], masterHeaderList[m])
print("incs", " ".join(incs))
i += 1
#~ return
#print("Master header list", " ".join(masterHeaderList))
unused = sorted(set(masterHeaderList) - allIncs)
if unused:
print("In HeaderOrder.txt but not used")
print("\n".join(unused))
CheckFiles("..")
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