dacb460d |
1 | #!/usr/bin/env perl |
2 | |
3 | # reservoir -- read stdin until EOF, and _then_ write it all to stdout. |
4 | |
5 | $usage = |
6 | "usage: reservoir [ -o file ]\n". |
7 | "where: -o file open and write to file after end of input\n". |
8 | " also: reservoir --version report version number\n" . |
9 | " reservoir --help display this help text\n" . |
10 | " reservoir --licence display (MIT) licence text\n"; |
11 | |
12 | $licence = |
13 | "reservoir is copyright 2005 Simon Tatham.\n" . |
14 | "\n" . |
15 | "Permission is hereby granted, free of charge, to any person\n" . |
16 | "obtaining a copy of this software and associated documentation files\n" . |
17 | "(the \"Software\"), to deal in the Software without restriction,\n" . |
18 | "including without limitation the rights to use, copy, modify, merge,\n" . |
19 | "publish, distribute, sublicense, and/or sell copies of the Software,\n" . |
20 | "and to permit persons to whom the Software is furnished to do so,\n" . |
21 | "subject to the following conditions:\n" . |
22 | "\n" . |
23 | "The above copyright notice and this permission notice shall be\n" . |
24 | "included in all copies or substantial portions of the Software.\n" . |
25 | "\n" . |
26 | "THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND,\n" . |
27 | "EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n" . |
28 | "MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND\n" . |
29 | "NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS\n" . |
30 | "BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN\n" . |
31 | "ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\n" . |
32 | "CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n" . |
33 | "SOFTWARE.\n"; |
34 | |
35 | $outputfile = undef; |
36 | |
37 | while ($_=shift @ARGV) { |
38 | last if /^--$/; |
39 | unshift (@ARGV, $_), last unless /^-(.*)/; |
40 | $arg = $1; |
41 | if ($arg eq "-help") { |
42 | print STDERR $usage; |
43 | exit 0; |
44 | } elsif ($arg eq "-version") { |
45 | if ('$Revision: 4876 $' =~ /Revision:\s+(\d+)/) { |
46 | print "reservoir revision $1\n"; |
47 | } else { |
48 | print "reservoir: unknown revision\n"; |
49 | } |
50 | exit 0; |
51 | } elsif ($arg eq "-licence" or $arg eq "-license") { |
52 | print $licence; |
53 | exit 0; |
54 | } elsif ($arg =~ /^o(.*)$/) { |
55 | $outputfile = $1; |
56 | $outputfile = shift @ARGV if $outputfile eq ""; |
57 | die "reservoir: expected file name after '-o'\n" if $outputfile eq ""; |
58 | } else { |
59 | die "reservoir: unrecognised option '-$arg'\n"; |
60 | } |
61 | } |
62 | |
63 | die $usage if $#ARGV > 0; |
64 | |
65 | $data = ''; |
66 | |
67 | $data .= $_ while <STDIN>; |
68 | |
69 | if (defined $outputfile) { |
70 | open OUT, ">$outputfile" or die "$outputfile: open: $!\n"; |
71 | select OUT; |
72 | } |
73 | print $data; |