29 lines
1 KiB
Puppet
29 lines
1 KiB
Puppet
# common/manifests/defines/replace.pp -- replace a pattern in a file with a string
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# Copyright (C) 2007 David Schmitt <david@schmitt.edv-bus.at>
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# See LICENSE for the full license granted to you.
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# Usage:
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#
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# replace { description:
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# file => "filename",
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# pattern => "regexp",
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# replacement => "replacement"
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#
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# For example, to replace the current port in /etc/munin/munin-node.conf
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# with a new port, but only disturbing the file when needed:
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#
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# replace { set_munin_node_port:
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# file => "/etc/munin/munin-node.conf",
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# pattern => "^port (?!$port)[0-9]*",
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# replacement => "port $port"
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# }
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define replace($file, $pattern, $replacement) {
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$pattern_no_slashes = slash_escape($pattern)
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$replacement_no_slashes = slash_escape($replacement)
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exec { "replace_${pattern}_${file}":
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command => "/usr/bin/perl -pi -e 's/$pattern_no_slashes/$replacement_no_slashes/' '$file'",
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onlyif => "/usr/bin/perl -ne 'BEGIN { \$ret = 1; } \$ret = 0 if /$pattern_no_slashes/; END { exit \$ret; }' '$file'",
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alias => "exec_$name",
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}
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}
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