X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/2909586ede1934c36e43e176909c36998279b2a2..c5d77e9659bb40db09376beb31ba9d23396ae601:/support/extern-squish

diff --git a/support/extern-squish b/support/extern-squish
new file mode 100755
index 00000000..eb8b32e1
--- /dev/null
+++ b/support/extern-squish
@@ -0,0 +1,18 @@
+#!/usr/bin/perl
+# This script finds extraneous "extern" variables in the *.c files.
+# Run it from inside the main rsync directory.
+
+use strict;
+
+my @files = glob('*.c');
+
+foreach my $fn (@files) {
+    open(IN, '<', $fn) or die;
+    undef $/; $_ = <IN>; $/ = "\n";
+    close IN;
+    my @externs = /^extern .*?([^[\s(*;&.]+)(?:\[.*?\])?;/mg;
+    foreach my $find (@externs) {
+	my @matches = /(?<!\sstruct )\b(\Q$find\E)\b/g;
+	print $fn, ': ', $find, "\n" if @matches == 1;
+    }
+}