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1 #!/bin/bash
2 #
3 # Name: check_unused_headers
4 # Purpose: checks all wxWidgets headers looking for headers not referenced anywhere
5 # Usage: run with --verbose for verbose output
6 # Copyright: (c) 2007 Francesco Montorsi
7 # Licence: wxWindows licence
8 ################################################################################
9
10
11
12 if [[ "$1" = "-v" || "$1" = "--verbose" ]]; then
13 verbose=yes
14 else
15 verbose=no
16 fi
17
18
19 me=$(basename $0)
20 path=${0%%/$me} # path from which the script has been launched
21 current=$(pwd)
22
23 # the path where this script resides:
24 scriptPath=$current/$path
25
26 # other interesting wx paths
27 headerPath="$scriptPath/../../include"
28 srcPath="$scriptPath/../../src"
29
30 # get list of wx source and header filenames
31 # NOTE: these list won't contain the .svn backup copies of the real sources/headers
32 # NOTE2: we keep the size of these lists small avoiding to include the prefixes
33 # like e.g. ../../include so to not incurr in OS limits when passing
34 # them as arguments of commands
35 cd $headerPath
36 headerList=`find wx -name "*.h"`
37 cd $srcPath
38 srcList=`find . -name "*.cpp"`
39
40
41 unusedHeaders=0
42
43 function checkIfHeaderIsUsed
44 {
45 local headerToCheck="$1"
46 local found=no
47
48 if [[ $verbose = yes ]]; then
49 echo -n "checking if header: $headerToCheck is used... "
50 fi
51
52 # find the first occurrence of this header in wx sources and headers:
53 cd $headerPath
54 grep -m 1 "$headerToCheck" $headerList >/dev/null 2>&1
55 if [[ $? = 0 ]]; then found=yes; fi
56
57 cd $srcPath
58 grep -m 1 "$headerToCheck" $srcList >/dev/null 2>&1
59 if [[ $? = 0 ]]; then found=yes; fi
60
61 if [[ $found = no ]]; then
62
63 if [[ $verbose = yes ]]; then
64 echo "no, it's not!"
65 fi
66
67 # this header is not used anywhere...
68 echo "WARNING: unused header $headerToCheck"
69 ((( unusedHeaders++ )))
70 else
71 if [[ $verbose = yes ]]; then
72 echo "yes, it is"
73 fi
74 fi
75 }
76
77 echo " This script will look for unused wxWidgets headers"
78 echo " Note that some headers maybe not referenced by wxWidgets sources/headers but still"
79 echo " be useful for user applications; others instead are simply old and forgotten."
80 echo
81
82 for header in $headerList; do
83 checkIfHeaderIsUsed $header
84 done
85
86 if [[ $unusedHeaders -gt 0 ]]; then
87 echo " => WARNING: found $unusedHeaders unused headers!"
88 else
89 echo " => All headers are referenced in either wxWidgets sources or in other headers"
90 fi