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42 lines
778 B
42 lines
778 B
#!/usr/bin/env perl
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# Execute shell commands and include their output in the current buffer,
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# formatted as an indented code block with the original command, in Markdown.
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#
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# See also: filter-exec-raw for unformatted output without the original
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# command.
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use strict;
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use warnings;
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use 5.10.0;
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my $startmarker = '<!-- exec -->';
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my $endmarker = '<!-- end -->';
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my $text;
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{
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# line separator:
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local $/ = undef;
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$text = <>;
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}
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$text =~ s{$startmarker(.*?)$endmarker}{handle_block($1);}egs;
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print $text;
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sub handle_block {
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my ($block) = @_;
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my $cmd;
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if ($block =~ m/\$ (.*?)$/m) {
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$cmd = $1;
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} else {
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die "bogus cmd";
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}
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my $result = `$cmd`;
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$result =~ s/^/ /gm;
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return "$startmarker\n\n \$ " . $cmd . "\n" . $result . "\n$endmarker";
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}
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