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PK =:�Z�M' ' mailmap.plnu �[��� #!/usr/bin/perl use warnings 'all'; use strict; use Getopt::Long; my $match_emails; my $match_names; my $order_by = 'count'; Getopt::Long::Configure(qw(bundling)); GetOptions( 'emails|e!' => \$match_emails, 'names|n!' => \$match_names, 'count|c' => sub { $order_by = 'count' }, 'time|t' => sub { $order_by = 'stamp' }, ) or exit 1; $match_emails = 1 unless $match_names; my $email = {}; my $name = {}; open(my $fh, '-|', "git log --format='%at <%aE> %aN'"); while(<$fh>) { my ($t, $e, $n) = /(\S+) <(\S+)> (.*)/; mark($email, $e, $n, $t); mark($name, $n, $e, $t); } close($fh); if ($match_emails) { foreach my $e (dups($email)) { foreach my $n (vals($email->{$e})) { show($n, $e, $email->{$e}->{$n}); } print "\n"; } } if ($match_names) { foreach my $n (dups($name)) { foreach my $e (vals($name->{$n})) { show($n, $e, $name->{$n}->{$e}); } print "\n"; } } exit 0; sub mark { my ($h, $k, $v, $t) = @_; my $e = $h->{$k}->{$v} ||= { count => 0, stamp => 0 }; $e->{count}++; $e->{stamp} = $t unless $t < $e->{stamp}; } sub dups { my $h = shift; return grep { keys($h->{$_}) > 1 } keys($h); } sub vals { my $h = shift; return sort { $h->{$b}->{$order_by} <=> $h->{$a}->{$order_by} } keys($h); } sub show { my ($n, $e, $h) = @_; print "$n <$e> ($h->{$order_by})\n"; } PK =:�Zj,� packinfo.plnu �[��� #!/usr/bin/perl # # This tool will print vaguely pretty information about a pack. It # expects the output of "git verify-pack -v" as input on stdin. # # $ git verify-pack -v | packinfo.pl # # This prints some full-pack statistics; currently "all sizes", "all # path sizes", "tree sizes", "tree path sizes", and "depths". # # * "all sizes" stats are across every object size in the file; # full sizes for base objects, and delta size for deltas. # * "all path sizes" stats are across all object's "path sizes". # A path size is the sum of the size of the delta chain, including the # base object. In other words, it's how many bytes need be read to # reassemble the file from deltas. # * "tree sizes" are object sizes grouped into delta trees. # * "tree path sizes" are path sizes grouped into delta trees. # * "depths" should be obvious. # # When run as: # # $ git verify-pack -v | packinfo.pl -tree # # the trees of objects are output along with the stats. This looks # like: # # 0 commit 031321c6... 803 803 # # 0 blob 03156f21... 1767 1767 # 1 blob f52a9d7f... 10 1777 # 2 blob a8cc5739... 51 1828 # 3 blob 660e90b1... 15 1843 # 4 blob 0cb8e3bb... 33 1876 # 2 blob e48607f0... 311 2088 # size: count 6 total 2187 min 10 max 1767 mean 364.50 median 51 std_dev 635.85 # path size: count 6 total 11179 min 1767 max 2088 mean 1863.17 median 1843 std_dev 107.26 # # The first number after the sha1 is the object size, the second # number is the path size. The statistics are across all objects in # the previous delta tree. Obviously they are omitted for trees of # one object. # # When run as: # # $ git verify-pack -v | packinfo.pl -tree -filenames # # it adds filenames to the tree. Getting this information is slow: # # 0 blob 03156f21... 1767 1767 Documentation/git-lost-found.txt @ tags/v1.2.0~142 # 1 blob f52a9d7f... 10 1777 Documentation/git-lost-found.txt @ tags/v1.5.0-rc1~74 # 2 blob a8cc5739... 51 1828 Documentation/git-lost+found.txt @ tags/v0.99.9h^0 # 3 blob 660e90b1... 15 1843 Documentation/git-lost+found.txt @ master~3222^2~2 # 4 blob 0cb8e3bb... 33 1876 Documentation/git-lost+found.txt @ master~3222^2~3 # 2 blob e48607f0... 311 2088 Documentation/git-lost-found.txt @ tags/v1.5.2-rc3~4 # size: count 6 total 2187 min 10 max 1767 mean 364.50 median 51 std_dev 635.85 # path size: count 6 total 11179 min 1767 max 2088 mean 1863.17 median 1843 std_dev 107.26 # # When run as: # # $ git verify-pack -v | packinfo.pl -dump # # it prints out "sha1 size pathsize depth" for each sha1 in lexical # order. # # 000079a2eaef17b7eae70e1f0f635557ea67b644 30 472 7 # 00013cafe6980411aa6fdd940784917b5ff50f0a 44 1542 4 # 000182eacf99cde27d5916aa415921924b82972c 499 499 0 # ... # # This is handy for comparing two packs. Adding "-filenames" will add # filenames, as per "-tree -filenames" above. use strict; use Getopt::Long; my $filenames = 0; my $tree = 0; my $dump = 0; GetOptions("tree" => \$tree, "filenames" => \$filenames, "dump" => \$dump); my %parents; my %children; my %sizes; my @roots; my %paths; my %types; my @commits; my %names; my %depths; my @depths; while (<STDIN>) { my ($sha1, $type, $size, $space, $offset, $depth, $parent) = split(/\s+/, $_); next unless ($sha1 =~ /^[0-9a-f]{40}$/); $depths{$sha1} = $depth || 0; push(@depths, $depth || 0); push(@commits, $sha1) if ($type eq 'commit'); push(@roots, $sha1) unless $parent; $parents{$sha1} = $parent; $types{$sha1} = $type; push(@{$children{$parent}}, $sha1); $sizes{$sha1} = $size; } if ($filenames && ($tree || $dump)) { open(NAMES, "git name-rev --all|"); while (<NAMES>) { if (/^(\S+)\s+(.*)$/) { my ($sha1, $name) = ($1, $2); $names{$sha1} = $name; } } close NAMES; for my $commit (@commits) { my $name = $names{$commit}; open(TREE, "git ls-tree -t -r $commit|"); print STDERR "Plumbing tree $name\n"; while (<TREE>) { if (/^(\S+)\s+(\S+)\s+(\S+)\s+(.*)$/) { my ($mode, $type, $sha1, $path) = ($1, $2, $3, $4); $paths{$sha1} = "$path @ $name"; } } close TREE; } } sub stats { my @data = sort {$a <=> $b} @_; my $min = $data[0]; my $max = $data[$#data]; my $total = 0; my $count = scalar @data; for my $datum (@data) { $total += $datum; } my $mean = $total / $count; my $median = $data[int(@data / 2)]; my $diff_sum = 0; for my $datum (@data) { $diff_sum += ($datum - $mean)**2; } my $std_dev = sqrt($diff_sum / $count); return ($count, $total, $min, $max, $mean, $median, $std_dev); } sub print_stats { my $name = shift; my ($count, $total, $min, $max, $mean, $median, $std_dev) = stats(@_); printf("%s: count %s total %s min %s max %s mean %.2f median %s std_dev %.2f\n", $name, $count, $total, $min, $max, $mean, $median, $std_dev); } my @sizes; my @path_sizes; my @all_sizes; my @all_path_sizes; my %path_sizes; sub dig { my ($sha1, $depth, $path_size) = @_; $path_size += $sizes{$sha1}; push(@sizes, $sizes{$sha1}); push(@all_sizes, $sizes{$sha1}); push(@path_sizes, $path_size); push(@all_path_sizes, $path_size); $path_sizes{$sha1} = $path_size; if ($tree) { printf("%3d%s %6s %s %8d %8d %s\n", $depth, (" " x $depth), $types{$sha1}, $sha1, $sizes{$sha1}, $path_size, $paths{$sha1}); } for my $child (@{$children{$sha1}}) { dig($child, $depth + 1, $path_size); } } my @tree_sizes; my @tree_path_sizes; for my $root (@roots) { undef @sizes; undef @path_sizes; dig($root, 0, 0); my ($aa, $sz_total) = stats(@sizes); my ($bb, $psz_total) = stats(@path_sizes); push(@tree_sizes, $sz_total); push(@tree_path_sizes, $psz_total); if ($tree) { if (@sizes > 1) { print_stats(" size", @sizes); print_stats("path size", @path_sizes); } print "\n"; } } if ($dump) { for my $sha1 (sort keys %sizes) { print "$sha1 $sizes{$sha1} $path_sizes{$sha1} $depths{$sha1} $paths{$sha1}\n"; } } else { print_stats(" all sizes", @all_sizes); print_stats(" all path sizes", @all_path_sizes); print_stats(" tree sizes", @tree_sizes); print_stats("tree path sizes", @tree_path_sizes); print_stats(" depths", @depths); } PK =:�ZU�O�� � git-common-hashnu �[��� #!/bin/sh # This script displays the distribution of longest common hash prefixes. # This can be used to determine the minimum prefix length to use # for object names to be unique. git rev-list --objects --all | sort | perl -lne ' substr($_, 40) = ""; # uncomment next line for a distribution of bits instead of hex chars # $_ = unpack("B*",pack("H*",$_)); if (defined $p) { ($p ^ $_) =~ /^(\0*)/; $common = length $1; if (defined $pcommon) { $count[$pcommon > $common ? $pcommon : $common]++; } else { $count[$common]++; # first item } } $p = $_; $pcommon = $common; END { $count[$common]++; # last item print "$_: $count[$_]" for 0..$#count; } ' PK =:�Z�M' ' mailmap.plnu �[��� PK =:�Zj,� a packinfo.plnu �[��� PK =:�ZU�O�� � � git-common-hashnu �[��� PK � �"
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