+# You define site-wide feature defaults here; override them with
+# $GITWEB_CONFIG as necessary.
+our %feature = (
+ # feature => {
+ # 'sub' => feature-sub (subroutine),
+ # 'override' => allow-override (boolean),
+ # 'default' => [ default options...] (array reference)}
+ #
+ # if feature is overridable (it means that allow-override has true value,
+ # then feature-sub will be called with default options as parameters;
+ # return value of feature-sub indicates if to enable specified feature
+ #
+ # use gitweb_check_feature(<feature>) to check if <feature> is enabled
+
+ # Enable the 'blame' blob view, showing the last commit that modified
+ # each line in the file. This can be very CPU-intensive.
+
+ # To enable system wide have in $GITWEB_CONFIG
+ # $feature{'blame'}{'default'} = [1];
+ # To have project specific config enable override in $GITWEB_CONFIG
+ # $feature{'blame'}{'override'} = 1;
+ # and in project config gitweb.blame = 0|1;
+ 'blame' => {
+ 'sub' => \&feature_blame,
+ 'override' => 0,
+ 'default' => [0]},
+
+ # Enable the 'snapshot' link, providing a compressed tarball of any
+ # tree. This can potentially generate high traffic if you have large
+ # project.
+
+ # To disable system wide have in $GITWEB_CONFIG
+ # $feature{'snapshot'}{'default'} = [undef];
+ # To have project specific config enable override in $GITWEB_CONFIG
+ # $feature{'snapshot'}{'override'} = 1;
+ # and in project config gitweb.snapshot = none|gzip|bzip2;
+ 'snapshot' => {
+ 'sub' => \&feature_snapshot,
+ 'override' => 0,
+ # => [content-encoding, suffix, program]
+ 'default' => ['x-gzip', 'gz', 'gzip']},
+
+ # Enable text search, which will list the commits which match author,
+ # committer or commit text to a given string. Enabled by default.
+ 'search' => {
+ 'override' => 0,
+ 'default' => [1]},
+
+ # Enable the pickaxe search, which will list the commits that modified
+ # a given string in a file. This can be practical and quite faster
+ # alternative to 'blame', but still potentially CPU-intensive.
+
+ # To enable system wide have in $GITWEB_CONFIG
+ # $feature{'pickaxe'}{'default'} = [1];
+ # To have project specific config enable override in $GITWEB_CONFIG
+ # $feature{'pickaxe'}{'override'} = 1;
+ # and in project config gitweb.pickaxe = 0|1;
+ 'pickaxe' => {
+ 'sub' => \&feature_pickaxe,
+ 'override' => 0,
+ 'default' => [1]},
+
+ # Make gitweb use an alternative format of the URLs which can be
+ # more readable and natural-looking: project name is embedded
+ # directly in the path and the query string contains other
+ # auxiliary information. All gitweb installations recognize
+ # URL in either format; this configures in which formats gitweb
+ # generates links.
+
+ # To enable system wide have in $GITWEB_CONFIG
+ # $feature{'pathinfo'}{'default'} = [1];
+ # Project specific override is not supported.
+
+ # Note that you will need to change the default location of CSS,
+ # favicon, logo and possibly other files to an absolute URL. Also,
+ # if gitweb.cgi serves as your indexfile, you will need to force
+ # $my_uri to contain the script name in your $GITWEB_CONFIG.
+ 'pathinfo' => {
+ 'override' => 0,
+ 'default' => [0]},
+
+ # Make gitweb consider projects in project root subdirectories
+ # to be forks of existing projects. Given project $projname.git,
+ # projects matching $projname/*.git will not be shown in the main
+ # projects list, instead a '+' mark will be added to $projname
+ # there and a 'forks' view will be enabled for the project, listing
+ # all the forks. This feature is supported only if project list
+ # is taken from a directory, not file.
+
+ # To enable system wide have in $GITWEB_CONFIG
+ # $feature{'forks'}{'default'} = [1];
+ # Project specific override is not supported.
+ 'forks' => {
+ 'override' => 0,
+ 'default' => [0]},
+);
+
+sub gitweb_check_feature {
+ my ($name) = @_;
+ return unless exists $feature{$name};
+ my ($sub, $override, @defaults) = (
+ $feature{$name}{'sub'},
+ $feature{$name}{'override'},
+ @{$feature{$name}{'default'}});
+ if (!$override) { return @defaults; }
+ if (!defined $sub) {
+ warn "feature $name is not overrideable";
+ return @defaults;
+ }
+ return $sub->(@defaults);
+}
+
+sub feature_blame {
+ my ($val) = git_get_project_config('blame', '--bool');
+
+ if ($val eq 'true') {
+ return 1;
+ } elsif ($val eq 'false') {
+ return 0;
+ }
+
+ return $_[0];
+}
+
+sub feature_snapshot {
+ my ($ctype, $suffix, $command) = @_;
+
+ my ($val) = git_get_project_config('snapshot');
+
+ if ($val eq 'gzip') {
+ return ('x-gzip', 'gz', 'gzip');
+ } elsif ($val eq 'bzip2') {
+ return ('x-bzip2', 'bz2', 'bzip2');
+ } elsif ($val eq 'none') {
+ return ();
+ }
+
+ return ($ctype, $suffix, $command);
+}
+
+sub gitweb_have_snapshot {
+ my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
+ my $have_snapshot = (defined $ctype && defined $suffix);
+
+ return $have_snapshot;
+}
+
+sub feature_pickaxe {
+ my ($val) = git_get_project_config('pickaxe', '--bool');
+
+ if ($val eq 'true') {
+ return (1);
+ } elsif ($val eq 'false') {
+ return (0);
+ }
+
+ return ($_[0]);
+}
+
+# checking HEAD file with -e is fragile if the repository was
+# initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
+# and then pruned.
+sub check_head_link {
+ my ($dir) = @_;
+ my $headfile = "$dir/HEAD";
+ return ((-e $headfile) ||
+ (-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
+}
+
+sub check_export_ok {
+ my ($dir) = @_;
+ return (check_head_link($dir) &&
+ (!$export_ok || -e "$dir/$export_ok"));
+}
+
+# rename detection options for git-diff and git-diff-tree
+# - default is '-M', with the cost proportional to
+# (number of removed files) * (number of new files).
+# - more costly is '-C' (or '-C', '-M'), with the cost proportional to
+# (number of changed files + number of removed files) * (number of new files)
+# - even more costly is '-C', '--find-copies-harder' with cost
+# (number of files in the original tree) * (number of new files)
+# - one might want to include '-B' option, e.g. '-B', '-M'
+our @diff_opts = ('-M'); # taken from git_commit
+