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1 | package ExtUtils::Command; |
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2 | |
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3 | use 5.00503; |
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4 | use strict; |
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5 | use Carp; |
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6 | use File::Copy; |
7 | use File::Compare; |
8 | use File::Basename; |
9 | use File::Path qw(rmtree); |
10 | require Exporter; |
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11 | use vars qw(@ISA @EXPORT $VERSION); |
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12 | @ISA = qw(Exporter); |
13 | @EXPORT = qw(cp rm_f rm_rf mv cat eqtime mkpath touch test_f); |
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14 | $VERSION = '1.04'; |
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15 | |
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16 | my $Is_VMS = $^O eq 'VMS'; |
17 | |
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18 | =head1 NAME |
19 | |
20 | ExtUtils::Command - utilities to replace common UNIX commands in Makefiles etc. |
21 | |
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22 | =head1 SYNOPSIS |
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23 | |
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24 | perl -MExtUtils::Command -e cat files... > destination |
25 | perl -MExtUtils::Command -e mv source... destination |
26 | perl -MExtUtils::Command -e cp source... destination |
27 | perl -MExtUtils::Command -e touch files... |
28 | perl -MExtUtils::Command -e rm_f files... |
29 | perl -MExtUtils::Command -e rm_rf directories... |
30 | perl -MExtUtils::Command -e mkpath directories... |
31 | perl -MExtUtils::Command -e eqtime source destination |
32 | perl -MExtUtils::Command -e test_f file |
33 | perl -MExtUtils::Command=chmod -e chmod mode files... |
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34 | |
35 | =head1 DESCRIPTION |
36 | |
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37 | The module is used to replace common UNIX commands. In all cases the |
38 | functions work from @ARGV rather than taking arguments. This makes |
39 | them easier to deal with in Makefiles. |
40 | |
41 | perl -MExtUtils::Command -e some_command some files to work on |
42 | |
43 | I<NOT> |
44 | |
45 | perl -MExtUtils::Command -e 'some_command qw(some files to work on)' |
46 | |
47 | Filenames with * and ? will be glob expanded. |
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48 | |
49 | =over 4 |
50 | |
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51 | =cut |
52 | |
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53 | # VMS uses % instead of ? to mean "one character" |
54 | my $wild_regex = $Is_VMS ? '*%' : '*?'; |
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55 | sub expand_wildcards |
56 | { |
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57 | @ARGV = map(/[$wild_regex]/o ? glob($_) : $_,@ARGV); |
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58 | } |
59 | |
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60 | |
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61 | =item cat |
62 | |
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63 | Concatenates all files mentioned on command line to STDOUT. |
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64 | |
65 | =cut |
66 | |
67 | sub cat () |
68 | { |
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69 | expand_wildcards(); |
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70 | print while (<>); |
71 | } |
72 | |
73 | =item eqtime src dst |
74 | |
75 | Sets modified time of dst to that of src |
76 | |
77 | =cut |
78 | |
79 | sub eqtime |
80 | { |
81 | my ($src,$dst) = @ARGV; |
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82 | local @ARGV = ($dst); touch(); # in case $dst doesn't exist |
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83 | utime((stat($src))[8,9],$dst); |
84 | } |
85 | |
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86 | =item rm_rf files.... |
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87 | |
88 | Removes directories - recursively (even if readonly) |
89 | |
90 | =cut |
91 | |
92 | sub rm_rf |
93 | { |
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94 | expand_wildcards(); |
95 | rmtree([grep -e $_,@ARGV],0,0); |
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96 | } |
97 | |
98 | =item rm_f files.... |
99 | |
100 | Removes files (even if readonly) |
101 | |
102 | =cut |
103 | |
104 | sub rm_f |
105 | { |
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106 | expand_wildcards(); |
107 | foreach (@ARGV) |
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108 | { |
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109 | next unless -f $_; |
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110 | next if unlink($_); |
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111 | chmod(0777,$_); |
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112 | next if unlink($_); |
113 | carp "Cannot delete $_:$!"; |
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114 | } |
115 | } |
116 | |
117 | =item touch files ... |
118 | |
119 | Makes files exist, with current timestamp |
120 | |
121 | =cut |
122 | |
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123 | sub touch { |
124 | my $t = time; |
125 | expand_wildcards(); |
126 | foreach my $file (@ARGV) { |
127 | open(FILE,">>$file") || die "Cannot write $file:$!"; |
128 | close(FILE); |
129 | utime($t,$t,$file); |
130 | } |
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131 | } |
132 | |
133 | =item mv source... destination |
134 | |
135 | Moves source to destination. |
136 | Multiple sources are allowed if destination is an existing directory. |
137 | |
138 | =cut |
139 | |
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140 | sub mv { |
141 | my $dst = pop(@ARGV); |
142 | expand_wildcards(); |
143 | croak("Too many arguments") if (@ARGV > 1 && ! -d $dst); |
144 | foreach my $src (@ARGV) { |
145 | move($src,$dst); |
146 | } |
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147 | } |
148 | |
149 | =item cp source... destination |
150 | |
151 | Copies source to destination. |
152 | Multiple sources are allowed if destination is an existing directory. |
153 | |
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154 | =cut |
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155 | |
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156 | sub cp { |
157 | my $dst = pop(@ARGV); |
158 | expand_wildcards(); |
159 | croak("Too many arguments") if (@ARGV > 1 && ! -d $dst); |
160 | foreach my $src (@ARGV) { |
161 | copy($src,$dst); |
162 | } |
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163 | } |
164 | |
165 | =item chmod mode files... |
166 | |
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167 | Sets UNIX like permissions 'mode' on all the files. e.g. 0666 |
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168 | |
169 | =cut |
170 | |
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171 | sub chmod { |
172 | my $mode = shift(@ARGV); |
173 | expand_wildcards(); |
174 | chmod(oct $mode,@ARGV) || die "Cannot chmod ".join(' ',$mode,@ARGV).":$!"; |
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175 | } |
176 | |
177 | =item mkpath directory... |
178 | |
179 | Creates directory, including any parent directories. |
180 | |
181 | =cut |
182 | |
183 | sub mkpath |
184 | { |
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185 | expand_wildcards(); |
186 | File::Path::mkpath([@ARGV],0,0777); |
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187 | } |
188 | |
189 | =item test_f file |
190 | |
191 | Tests if a file exists |
192 | |
193 | =cut |
194 | |
195 | sub test_f |
196 | { |
197 | exit !-f shift(@ARGV); |
198 | } |
199 | |
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200 | |
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201 | 1; |
202 | __END__ |
203 | |
204 | =back |
205 | |
206 | =head1 BUGS |
207 | |
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208 | Should probably be Auto/Self loaded. |
209 | |
210 | =head1 SEE ALSO |
211 | |
212 | ExtUtils::MakeMaker, ExtUtils::MM_Unix, ExtUtils::MM_Win32 |
213 | |
214 | =head1 AUTHOR |
215 | |
216 | Nick Ing-Simmons <F<nick@ni-s.u-net.com>>. |
217 | |
218 | =cut |
219 | |