/git-rebase--merge
/git-receive-pack
/git-reflog
-/git-relink
/git-remote
/git-remote-http
/git-remote-https
+++ /dev/null
-git-relink(1)
-=============
-
-NAME
-----
-git-relink - Hardlink common objects in local repositories
-
-SYNOPSIS
---------
-[verse]
-'git relink' [--safe] <dir>... <master_dir>
-
-DESCRIPTION
------------
-This will scan 1 or more object repositories and look for objects in common
-with a master repository. Objects not already hardlinked to the master
-repository will be replaced with a hardlink to the master repository.
-
-OPTIONS
--------
---safe::
- Stops if two objects with the same hash exist but have different sizes.
- Default is to warn and continue.
-
-<dir>::
- Directories containing a .git/objects/ subdirectory.
-
-GIT
----
-Part of the linkgit:git[1] suite
SCRIPT_PERL += git-cvsexportcommit.perl
SCRIPT_PERL += git-cvsimport.perl
SCRIPT_PERL += git-cvsserver.perl
-SCRIPT_PERL += git-relink.perl
SCRIPT_PERL += git-send-email.perl
SCRIPT_PERL += git-svn.perl
git-rebase mainporcelain history
git-receive-pack synchelpers
git-reflog ancillarymanipulators
-git-relink ancillarymanipulators
git-remote ancillarymanipulators
git-repack ancillarymanipulators
git-replace ancillarymanipulators
--- /dev/null
+#!/usr/bin/perl
+# Copyright 2005, Ryan Anderson <ryan@michonline.com>
+# Distribution permitted under the GPL v2, as distributed
+# by the Free Software Foundation.
+# Later versions of the GPL at the discretion of Linus Torvalds
+#
+# Scan two git object-trees, and hardlink any common objects between them.
+
+use 5.008;
+use strict;
+use warnings;
+use Getopt::Long;
+
+sub get_canonical_form($);
+sub do_scan_directory($$$);
+sub compare_two_files($$);
+sub usage();
+sub link_two_files($$);
+
+# stats
+my $total_linked = 0;
+my $total_already = 0;
+my ($linked,$already);
+
+my $fail_on_different_sizes = 0;
+my $help = 0;
+GetOptions("safe" => \$fail_on_different_sizes,
+ "help" => \$help);
+
+usage() if $help;
+
+my (@dirs) = @ARGV;
+
+usage() if (!defined $dirs[0] || !defined $dirs[1]);
+
+$_ = get_canonical_form($_) foreach (@dirs);
+
+my $master_dir = pop @dirs;
+
+opendir(D,$master_dir . "objects/")
+ or die "Failed to open $master_dir/objects/ : $!";
+
+my @hashdirs = grep { ($_ eq 'pack') || /^[0-9a-f]{2}$/ } readdir(D);
+
+foreach my $repo (@dirs) {
+ $linked = 0;
+ $already = 0;
+ printf("Searching '%s' and '%s' for common objects and hardlinking them...\n",
+ $master_dir,$repo);
+
+ foreach my $hashdir (@hashdirs) {
+ do_scan_directory($master_dir, $hashdir, $repo);
+ }
+
+ printf("Linked %d files, %d were already linked.\n",$linked, $already);
+
+ $total_linked += $linked;
+ $total_already += $already;
+}
+
+printf("Totals: Linked %d files, %d were already linked.\n",
+ $total_linked, $total_already);
+
+
+sub do_scan_directory($$$) {
+ my ($srcdir, $subdir, $dstdir) = @_;
+
+ my $sfulldir = sprintf("%sobjects/%s/",$srcdir,$subdir);
+ my $dfulldir = sprintf("%sobjects/%s/",$dstdir,$subdir);
+
+ opendir(S,$sfulldir)
+ or die "Failed to opendir $sfulldir: $!";
+
+ foreach my $file (grep(!/\.{1,2}$/, readdir(S))) {
+ my $sfilename = $sfulldir . $file;
+ my $dfilename = $dfulldir . $file;
+
+ compare_two_files($sfilename,$dfilename);
+
+ }
+ closedir(S);
+}
+
+sub compare_two_files($$) {
+ my ($sfilename, $dfilename) = @_;
+
+ # Perl's stat returns relevant information as follows:
+ # 0 = dev number
+ # 1 = inode number
+ # 7 = size
+ my @sstatinfo = stat($sfilename);
+ my @dstatinfo = stat($dfilename);
+
+ if (@sstatinfo == 0 && @dstatinfo == 0) {
+ die sprintf("Stat of both %s and %s failed: %s\n",$sfilename, $dfilename, $!);
+
+ } elsif (@dstatinfo == 0) {
+ return;
+ }
+
+ if ( ($sstatinfo[0] == $dstatinfo[0]) &&
+ ($sstatinfo[1] != $dstatinfo[1])) {
+ if ($sstatinfo[7] == $dstatinfo[7]) {
+ link_two_files($sfilename, $dfilename);
+
+ } else {
+ my $err = sprintf("ERROR: File sizes are not the same, cannot relink %s to %s.\n",
+ $sfilename, $dfilename);
+ if ($fail_on_different_sizes) {
+ die $err;
+ } else {
+ warn $err;
+ }
+ }
+
+ } elsif ( ($sstatinfo[0] == $dstatinfo[0]) &&
+ ($sstatinfo[1] == $dstatinfo[1])) {
+ $already++;
+ }
+}
+
+sub get_canonical_form($) {
+ my $dir = shift;
+ my $original = $dir;
+
+ die "$dir is not a directory." unless -d $dir;
+
+ $dir .= "/" unless $dir =~ m#/$#;
+ $dir .= ".git/" unless $dir =~ m#\.git/$#;
+
+ die "$original does not have a .git/ subdirectory.\n" unless -d $dir;
+
+ return $dir;
+}
+
+sub link_two_files($$) {
+ my ($sfilename, $dfilename) = @_;
+ my $tmpdname = sprintf("%s.old",$dfilename);
+ rename($dfilename,$tmpdname)
+ or die sprintf("Failure renaming %s to %s: %s",
+ $dfilename, $tmpdname, $!);
+
+ if (! link($sfilename,$dfilename)) {
+ my $failtxt = "";
+ unless (rename($tmpdname,$dfilename)) {
+ $failtxt = sprintf(
+ "Git Repository containing %s is probably corrupted, " .
+ "please copy '%s' to '%s' to fix.\n",
+ $tmpdname, $dfilename);
+ }
+
+ die sprintf("Failed to link %s to %s: %s\n%s" .
+ $sfilename, $dfilename,
+ $!, $dfilename, $failtxt);
+ }
+
+ unlink($tmpdname)
+ or die sprintf("Unlink of %s failed: %s\n",
+ $dfilename, $!);
+
+ $linked++;
+}
+
+
+sub usage() {
+ print("usage: git relink [--safe] <dir>... <master_dir> \n");
+ print("All directories should contain a .git/objects/ subdirectory.\n");
+ print("Options\n");
+ print("\t--safe\t" .
+ "Stops if two objects with the same hash exist but " .
+ "have different sizes. Default is to warn and continue.\n");
+ exit(1);
+}
--- /dev/null
+git-relink(1)
+=============
+
+NAME
+----
+git-relink - Hardlink common objects in local repositories
+
+SYNOPSIS
+--------
+[verse]
+'git relink' [--safe] <dir>... <master_dir>
+
+DESCRIPTION
+-----------
+This will scan 1 or more object repositories and look for objects in common
+with a master repository. Objects not already hardlinked to the master
+repository will be replaced with a hardlink to the master repository.
+
+OPTIONS
+-------
+--safe::
+ Stops if two objects with the same hash exist but have different sizes.
+ Default is to warn and continue.
+
+<dir>::
+ Directories containing a .git/objects/ subdirectory.
+
+GIT
+---
+Part of the linkgit:git[1] suite
+++ /dev/null
-#!/usr/bin/perl
-# Copyright 2005, Ryan Anderson <ryan@michonline.com>
-# Distribution permitted under the GPL v2, as distributed
-# by the Free Software Foundation.
-# Later versions of the GPL at the discretion of Linus Torvalds
-#
-# Scan two git object-trees, and hardlink any common objects between them.
-
-use 5.008;
-use strict;
-use warnings;
-use Getopt::Long;
-
-sub get_canonical_form($);
-sub do_scan_directory($$$);
-sub compare_two_files($$);
-sub usage();
-sub link_two_files($$);
-
-# stats
-my $total_linked = 0;
-my $total_already = 0;
-my ($linked,$already);
-
-my $fail_on_different_sizes = 0;
-my $help = 0;
-GetOptions("safe" => \$fail_on_different_sizes,
- "help" => \$help);
-
-usage() if $help;
-
-my (@dirs) = @ARGV;
-
-usage() if (!defined $dirs[0] || !defined $dirs[1]);
-
-$_ = get_canonical_form($_) foreach (@dirs);
-
-my $master_dir = pop @dirs;
-
-opendir(D,$master_dir . "objects/")
- or die "Failed to open $master_dir/objects/ : $!";
-
-my @hashdirs = grep { ($_ eq 'pack') || /^[0-9a-f]{2}$/ } readdir(D);
-
-foreach my $repo (@dirs) {
- $linked = 0;
- $already = 0;
- printf("Searching '%s' and '%s' for common objects and hardlinking them...\n",
- $master_dir,$repo);
-
- foreach my $hashdir (@hashdirs) {
- do_scan_directory($master_dir, $hashdir, $repo);
- }
-
- printf("Linked %d files, %d were already linked.\n",$linked, $already);
-
- $total_linked += $linked;
- $total_already += $already;
-}
-
-printf("Totals: Linked %d files, %d were already linked.\n",
- $total_linked, $total_already);
-
-
-sub do_scan_directory($$$) {
- my ($srcdir, $subdir, $dstdir) = @_;
-
- my $sfulldir = sprintf("%sobjects/%s/",$srcdir,$subdir);
- my $dfulldir = sprintf("%sobjects/%s/",$dstdir,$subdir);
-
- opendir(S,$sfulldir)
- or die "Failed to opendir $sfulldir: $!";
-
- foreach my $file (grep(!/\.{1,2}$/, readdir(S))) {
- my $sfilename = $sfulldir . $file;
- my $dfilename = $dfulldir . $file;
-
- compare_two_files($sfilename,$dfilename);
-
- }
- closedir(S);
-}
-
-sub compare_two_files($$) {
- my ($sfilename, $dfilename) = @_;
-
- # Perl's stat returns relevant information as follows:
- # 0 = dev number
- # 1 = inode number
- # 7 = size
- my @sstatinfo = stat($sfilename);
- my @dstatinfo = stat($dfilename);
-
- if (@sstatinfo == 0 && @dstatinfo == 0) {
- die sprintf("Stat of both %s and %s failed: %s\n",$sfilename, $dfilename, $!);
-
- } elsif (@dstatinfo == 0) {
- return;
- }
-
- if ( ($sstatinfo[0] == $dstatinfo[0]) &&
- ($sstatinfo[1] != $dstatinfo[1])) {
- if ($sstatinfo[7] == $dstatinfo[7]) {
- link_two_files($sfilename, $dfilename);
-
- } else {
- my $err = sprintf("ERROR: File sizes are not the same, cannot relink %s to %s.\n",
- $sfilename, $dfilename);
- if ($fail_on_different_sizes) {
- die $err;
- } else {
- warn $err;
- }
- }
-
- } elsif ( ($sstatinfo[0] == $dstatinfo[0]) &&
- ($sstatinfo[1] == $dstatinfo[1])) {
- $already++;
- }
-}
-
-sub get_canonical_form($) {
- my $dir = shift;
- my $original = $dir;
-
- die "$dir is not a directory." unless -d $dir;
-
- $dir .= "/" unless $dir =~ m#/$#;
- $dir .= ".git/" unless $dir =~ m#\.git/$#;
-
- die "$original does not have a .git/ subdirectory.\n" unless -d $dir;
-
- return $dir;
-}
-
-sub link_two_files($$) {
- my ($sfilename, $dfilename) = @_;
- my $tmpdname = sprintf("%s.old",$dfilename);
- rename($dfilename,$tmpdname)
- or die sprintf("Failure renaming %s to %s: %s",
- $dfilename, $tmpdname, $!);
-
- if (! link($sfilename,$dfilename)) {
- my $failtxt = "";
- unless (rename($tmpdname,$dfilename)) {
- $failtxt = sprintf(
- "Git Repository containing %s is probably corrupted, " .
- "please copy '%s' to '%s' to fix.\n",
- $tmpdname, $dfilename);
- }
-
- die sprintf("Failed to link %s to %s: %s\n%s" .
- $sfilename, $dfilename,
- $!, $dfilename, $failtxt);
- }
-
- unlink($tmpdname)
- or die sprintf("Unlink of %s failed: %s\n",
- $dfilename, $!);
-
- $linked++;
-}
-
-
-sub usage() {
- print("usage: git relink [--safe] <dir>... <master_dir> \n");
- print("All directories should contain a .git/objects/ subdirectory.\n");
- print("Options\n");
- print("\t--safe\t" .
- "Stops if two objects with the same hash exist but " .
- "have different sizes. Default is to warn and continue.\n");
- exit(1);
-}