gitweb: Use list for of open for running git commands, thorougly.

Use list form of open for running git commands and reading their
output through pipe, for example

	open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", $hash

instead of

	open my $fd, "-|", "$GIT rev-list --header --parents $hash"

Single letter options use ' instead of " as quotes, according to style
used in list form of magic "-|" open.

Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/gitweb/gitweb.cgi b/gitweb/gitweb.cgi
index 323dfca3f3494c15bf91ad45d986cbbed67836cc..8f7341f458de55c895e01a1e095940a48cb6bca1 100755 (executable)
--- a/gitweb/gitweb.cgi
+++ b/gitweb/gitweb.cgi
@@ -388,7 +388,7 @@ sub die_error {
 sub git_get_type {
        my $hash = shift;
 
-       open my $fd, "-|", "$GIT cat-file -t $hash" or return;
+       open my $fd, "-|", $GIT, "cat-file", '-t', $hash or return;
        my $type = <$fd>;
        close $fd or return;
        chomp $type;
@@ -440,7 +440,7 @@ sub git_read_tag {
        my %tag;
        my @comment;
 
-       open my $fd, "-|", "$GIT cat-file tag $tag_id" or return;
+       open my $fd, "-|", $GIT, "cat-file", "tag", $tag_id or return;
        $tag{'id'} = $tag_id;
        while (my $line = <$fd>) {
                chomp $line;
@@ -512,7 +512,7 @@ sub git_read_commit {
                @commit_lines = @$commit_text;
        } else {
                $/ = "\0";
-               open my $fd, "-|", "$GIT rev-list --header --parents --max-count=1 $commit_id" or return;
+               open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", "--max-count=1", $commit_id or return;
                @commit_lines = split '\n', <$fd>;
                close $fd or return;
                $/ = "\n";
@@ -610,7 +610,7 @@ sub git_diff_print {
        if (defined $from) {
                $from_tmp = "$git_temp/gitweb_" . $$ . "_from";
                open my $fd2, "> $from_tmp";
-               open my $fd, "-|", "$GIT cat-file blob $from";
+               open my $fd, "-|", $GIT, "cat-file", "blob", $from;
                my @file = <$fd>;
                print $fd2 @file;
                close $fd2;
@@ -621,7 +621,7 @@ sub git_diff_print {
        if (defined $to) {
                $to_tmp = "$git_temp/gitweb_" . $$ . "_to";
                open my $fd2, "> $to_tmp";
-               open my $fd, "-|", "$GIT cat-file blob $to";
+               open my $fd, "-|", $GIT, "cat-file", "blob", $to;
                my @file = <$fd>;
                print $fd2 @file;
                close $fd2;
@@ -1062,7 +1062,8 @@ sub git_summary {
              "<tr><td>owner</td><td>$owner</td></tr>\n" .
              "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n" .
              "</table>\n";
-       open my $fd, "-|", "$GIT rev-list --max-count=17 " . git_read_head($project) or die_error(undef, "Open failed.");
+       open my $fd, "-|", $GIT, "rev-list", "--max-count=17", git_read_head($project)
+               or die_error(undef, "Open failed.");
        my (@revlist) = map { chomp; $_ } <$fd>;
        close $fd;
        print "<div>\n" .
@@ -1526,7 +1527,7 @@ sub git_get_hash_by_path {
        my $tree = $base;
        my @parts = split '/', $path;
        while (my $part = shift @parts) {
-               open my $fd, "-|", "$GIT ls-tree $tree" or die_error(undef, "Open git-ls-tree failed.");
+               open my $fd, "-|", $GIT, "ls-tree", $tree or die_error(undef, "Open git-ls-tree failed.");
                my (@entries) = map { chomp; $_ } <$fd>;
                close $fd or return undef;
                foreach my $line (@entries) {
@@ -1622,7 +1623,7 @@ sub git_blob_plain {
                }
        }
        my $type = shift;
-       open my $fd, "-|", "$GIT cat-file blob $hash" or die_error("Couldn't cat $file_name, $hash");
+       open my $fd, "-|", $GIT, "cat-file", "blob", $hash or die_error("Couldn't cat $file_name, $hash");
 
        $type ||= git_blob_plain_mimetype($fd, $file_name);
 
@@ -1654,7 +1655,7 @@ sub git_blob {
                }
        }
        my $have_blame = git_get_project_config_bool ('blame');
-       open my $fd, "-|", "$GIT cat-file blob $hash" or die_error(undef, "Open failed.");
+       open my $fd, "-|", $GIT, "cat-file", "blob", $hash or die_error(undef, "Open failed.");
        my $mimetype = git_blob_plain_mimetype($fd, $file_name);
        if ($mimetype !~ m/^text\//) {
                close $fd;
@@ -1718,7 +1719,7 @@ sub git_tree {
                }
        }
        $/ = "\0";
-       open my $fd, "-|", "$GIT ls-tree -z $hash" or die_error(undef, "Open git-ls-tree failed.");
+       open my $fd, "-|", $GIT, "ls-tree", '-z', $hash or die_error(undef, "Open git-ls-tree failed.");
        chomp (my (@entries) = <$fd>);
        close $fd or die_error(undef, "Reading tree failed.");
        $/ = "\n";
@@ -1799,7 +1800,8 @@ sub git_tree {
 
 sub git_rss {
        # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
-       open my $fd, "-|", "$GIT rev-list --max-count=150 " . git_read_head($project) or die_error(undef, "Open failed.");
+       open my $fd, "-|", $GIT, "rev-list", "--max-count=150", git_read_head($project)
+               or die_error(undef, "Open failed.");
        my (@revlist) = map { chomp; $_ } <$fd>;
        close $fd or die_error(undef, "Reading rev-list failed.");
        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
@@ -1819,7 +1821,7 @@ sub git_rss {
                        last;
                }
                my %cd = date_str($co{'committer_epoch'});
-               open $fd, "-|", "$GIT diff-tree -r $co{'parent'} $co{'id'}" or next;
+               open $fd, "-|", $GIT, "diff-tree", '-r', $co{'parent'}, $co{'id'} or next;
                my @difftree = map { chomp; $_ } <$fd>;
                close $fd or next;
                print "<item>\n" .
@@ -1907,7 +1909,7 @@ sub git_log {
              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$hash;hb=$hash")}, "tree") . "<br/>\n";
 
        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
-       open my $fd, "-|", "$GIT rev-list $limit $hash" or die_error(undef, "Open failed.");
+       open my $fd, "-|", $GIT, "rev-list", $limit, $hash or die_error(undef, "Open failed.");
        my (@revlist) = map { chomp; $_ } <$fd>;
        close $fd;
 
@@ -1992,15 +1994,14 @@ sub git_commit {
        my %cd = date_str($co{'committer_epoch'}, $co{'committer_tz'});
 
        my @difftree;
-       my $root = "";
        my $parent = $co{'parent'};
        if (!defined $parent) {
-               $root = " --root";
-               $parent = "";
+               $parent = "--root";
        }
-       open my $fd, "-|", "$GIT diff-tree -r -M $root $parent $hash" or die_error(undef, "Open failed.");
+       open my $fd, "-|", $GIT, "diff-tree", '-r', '-M', $parent, $hash
+               or die_error(undef, "Open failed.");
        @difftree = map { chomp; $_ } <$fd>;
-       close $fd or die_error(undef, "Reading diff-tree failed.");
+       close $fd or die_error(undef, "Reading git-diff-tree failed.");
 
        # non-textual hash id's can be cached
        my $expires;
@@ -2244,7 +2245,8 @@ sub git_commitdiff {
        if (!defined $hash_parent) {
                $hash_parent = $co{'parent'};
        }
-       open my $fd, "-|", "$GIT diff-tree -r $hash_parent $hash" or die_error(undef, "Open failed.");
+       open my $fd, "-|", $GIT, "diff-tree", '-r', $hash_parent, $hash
+               or die_error(undef, "Open failed.");
        my (@difftree) = map { chomp; $_ } <$fd>;
        close $fd or die_error(undef, "Reading diff-tree failed.");
 
@@ -2334,14 +2336,15 @@ sub git_commitdiff {
 
 sub git_commitdiff_plain {
        mkdir($git_temp, 0700);
-       open my $fd, "-|", "$GIT diff-tree -r $hash_parent $hash" or die_error(undef, "Open failed.");
+       open my $fd, "-|", $GIT, "diff-tree", '-r', $hash_parent, $hash
+               or die_error(undef, "Open failed.");
        my (@difftree) = map { chomp; $_ } <$fd>;
        close $fd or die_error(undef, "Reading diff-tree failed.");
 
        # try to figure out the next tag after this commit
        my $tagname;
        my $refs = read_info_ref("tags");
-       open $fd, "-|", "$GIT rev-list HEAD";
+       open $fd, "-|", $GIT, "rev-list", "HEAD";
        chomp (my (@commits) = <$fd>);
        close $fd;
        foreach my $commit (@commits) {
@@ -2419,7 +2422,7 @@ sub git_history {
        git_print_page_path($file_name, $ftype);
 
        open my $fd, "-|",
-               "$GIT rev-list --full-history $hash_base -- \'$file_name\'";
+               $GIT, "rev-list", "--full-history", $hash_base, "--", "\'$file_name\'";
        print "<table cellspacing=\"0\">\n";
        my $alternate = 0;
        while (my $line = <$fd>) {
@@ -2506,7 +2509,7 @@ sub git_search {
        my $alternate = 0;
        if ($commit_search) {
                $/ = "\0";
-               open my $fd, "-|", "$GIT rev-list --header --parents $hash" or next;
+               open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", $hash or next;
                while (my $commit_text = <$fd>) {
                        if (!grep m/$searchtext/i, $commit_text) {
                                next;
@@ -2627,7 +2630,7 @@ sub git_shortlog {
              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$hash;hb=$hash")}, "tree") . "<br/>\n";
 
        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
-       open my $fd, "-|", "$GIT rev-list $limit $hash" or die_error(undef, "Open failed.");
+       open my $fd, "-|", $GIT, "rev-list", $limit, $hash or die_error(undef, "Open failed.");
        my (@revlist) = map { chomp; $_ } <$fd>;
        close $fd;