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| 1 | +#!/usr/bin/perl |
| 2 | + |
| 3 | +#---------------------------------------------------------------------- |
| 4 | +# |
| 5 | +# mark_pgdllimport.pl |
| 6 | +# Perl script that tries to add PGDLLIMPORT markings to PostgreSQL |
| 7 | +# header files. |
| 8 | +# |
| 9 | +# This relies on a few idiosyncracies of the PostgreSQL cding style, |
| 10 | +# such as the fact that we always use "extern" in function |
| 11 | +# declarations, and that we don't use // comments. It's not very |
| 12 | +# smart and may not catch all cases. |
| 13 | +# |
| 14 | +# It's probably a good idea to run pgindent on any files that this |
| 15 | +# script modifies before committing. |
| 16 | +# |
| 17 | +# Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group |
| 18 | +# Portions Copyright (c) 1994, Regents of the University of California |
| 19 | +# |
| 20 | +# src/tools/mark_pgdllimport.pl |
| 21 | +# |
| 22 | +#---------------------------------------------------------------------- |
| 23 | + |
| 24 | +use strict; |
| 25 | +use warnings; |
| 26 | + |
| 27 | +for my $include_file (@ARGV) |
| 28 | +{ |
| 29 | + open(my $rfh, '<', $include_file) || die "$include_file: $!"; |
| 30 | + my $buffer = ''; |
| 31 | + my $num_pgdllimport_added = 0; |
| 32 | + |
| 33 | + while (my $raw_line = <$rfh>) |
| 34 | + { |
| 35 | + my $needs_pgdllimport = 1; |
| 36 | + |
| 37 | + # By convention we declare global variables explicitly extern. We're |
| 38 | + # looking for those not already marked with PGDLLIMPORT. |
| 39 | + $needs_pgdllimport = 0 if $raw_line !~ /^extern\s+/ |
| 40 | + || $raw_line =~ /PGDLLIMPORT/; |
| 41 | + |
| 42 | + # Make a copy of the line and perform a simple-minded comment strip. |
| 43 | + # Also strip trailing whitespace. |
| 44 | + my $stripped_line = $raw_line; |
| 45 | + $stripped_line =~ s/\/\*.*\*\///g; |
| 46 | + $stripped_line =~ s/\s+$//; |
| 47 | + |
| 48 | + # Variable declarations should end in a semicolon. If we see an |
| 49 | + # opening parenthesis, it's probably a function declaration. |
| 50 | + $needs_pgdllimport = 0 if $stripped_line !~ /;$/ |
| 51 | + || $stripped_line =~ /\(/; |
| 52 | + |
| 53 | + # Add PGDLLIMPORT marker, if required. |
| 54 | + if ($needs_pgdllimport) |
| 55 | + { |
| 56 | + $raw_line =~ s/^extern/extern PGDLLIMPORT/; |
| 57 | + ++$num_pgdllimport_added; |
| 58 | + } |
| 59 | + |
| 60 | + # Add line to buffer. |
| 61 | + $buffer .= $raw_line; |
| 62 | + } |
| 63 | + |
| 64 | + close($rfh); |
| 65 | + |
| 66 | + # If we added any PGDLLIMPORT markers, rewrite the file. |
| 67 | + if ($num_pgdllimport_added > 0) |
| 68 | + { |
| 69 | + printf "%s: adding %d PGDLLIMPORT markers\n", |
| 70 | + $include_file, $num_pgdllimport_added; |
| 71 | + open(my $wfh, '>', $include_file) || die "$include_file: $!"; |
| 72 | + print $wfh $buffer; |
| 73 | + close($wfh); |
| 74 | + } |
| 75 | +} |
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