Re: Changelogs on kernel.org

From: Marcus Alanen (marcus@infa.abo.fi)
Date: Sun May 12 2002 - 16:42:56 EST


In mailing-lists.linux-kernel, you wrote:
>torvalds@transmeta.com (Linus Torvalds) writes:
>
>> Perl is the obvious choice for doing transformations like these. Is
>> anybody willing to write a perl script that does the "sort by author"
>> thing?

[snip]
Basically the same, this treats each patch separately:

#!/usr/bin/perl

use strict;

my %people = ();
my $addr = "";
my @cur = ();

sub append_item() {
        if (!$addr) { return; }
        if (!$people{$addr}) { @{$people{$addr}} = (); }
        push @{$people{$addr}}, [@cur];

        @cur = ();
}

while (<>) {
        # Match address
        if (/^<(.+)>/) {
                # Add old item (if any) before beginning new
                append_item();
                $addr = $1;
        } elsif ($addr) {
                # Add line to patch
                push @cur, $_;
        } else {
                # Header information
                print
        }
}

sub print_items($) {
        my @items = @{$people{$_[0]}};
        # Vain attempt to sort patches from one address
        @items = sort @items;
        while ($_ = shift @items) {
                # Item separator
                print " --------------------------------------------------------------\n";
                print @$_;
        }
}

append_item();
foreach $addr (sort keys %people) {
        print "<$addr>\n";
        print_items($addr);
        print "\n";
}

Output:

Summary of changes from v2.5.14 to v2.5.15
============================================

<acme@brinquedo.oo.ps>
        --------------------------------------------------------------
        - remove spurious spaces and tabs at end of lines
        - make sure if, while, for, switch has a space before the opening '('
        - make sure no line has more than 80 chars
        - move initializations to the declaration line where possible
        - bitwise, logical and arithmetic operators have spaces before and after,
          improving readability of complex expressions
        - remove uneeded () in returns
        - other minor cleanups

<acme@conectiva.com.br>
        --------------------------------------------------------------
        net/ipv4/arp.c:
        - htons cleanups
        - remove duplicated code
        - apply CodingStyle

...
...
<davej@suse.de>
        --------------------------------------------------------------
        [PATCH] capabilities for mtrr driver.

        --------------------------------------------------------------
        [PATCH] region handling cleanup

        Done by William Stinson.
        Adds error handling to request_region() calls,
        and converts some old check_region() calls too.

        --------------------------------------------------------------
        [PATCH] region handling cleanup

        Done by William Stinson.
        Adds error handling to request_region() calls,
        and converts some old check_region() calls too.
...
...

-- 
Marcus Alanen
maalanen@abo.fi
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