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Annotation of cvsweb/cvsweb.cgi, Revision 1.15

1.1       jfieber     1: #!/usr/bin/perl -s
                      2: #
                      3: # cvsweb - a CGI interface to the CVS tree.
                      4: #
                      5: # Written by Bill Fenner <fenner@parc.xerox.com> on his own time.
                      6: # Insert BSD copyright here.
                      7: #
                      8: #HTTP_USER_AGENT: Mozilla/1.1N (X11; I; SunOS 4.1.3_U1 sun4m) via proxy gateway CERN-HTTPD/3.0 libwww/2.17
                      9: #SERVER_NAME: www.freebsd.org
                     10: #QUERY_STRING: baz
                     11: #SCRIPT_FILENAME: /usr/local/www/cgi-bin/env.pl
                     12: #SERVER_PORT: 80
                     13: #HTTP_ACCEPT: */*, image/gif, image/x-xbitmap, image/jpeg
                     14: #SERVER_PROTOCOL: HTTP/1.0
                     15: #HTTP_COOKIE: s=beta26429821397802167
                     16: #PATH_INFO: /foo/bar
                     17: #REMOTE_ADDR: 13.1.64.94
                     18: #DOCUMENT_ROOT: /usr/local/www/data/
                     19: #PATH: /sbin:/bin:/usr/sbin:/usr/bin
                     20: #PATH_TRANSLATED: /usr/local/www/data//foo/bar
                     21: #GATEWAY_INTERFACE: CGI/1.1
                     22: #REQUEST_METHOD: GET
                     23: #SCRIPT_NAME: /cgi-bin/env.pl
                     24: #SERVER_SOFTWARE: Apache/1.0.0
                     25: #REMOTE_HOST: beta.xerox.com
                     26: #SERVER_ADMIN: webmaster@freebsd.org
                     27: #
                     28: require 'timelocal.pl';
                     29: require 'ctime.pl';
                     30:
1.2       jfieber    31: $hsty_base = "";
                     32: require 'cgi-style.pl';
1.11      wosch      33: #&get_the_source;
1.2       jfieber    34:
1.10      wosch      35: %CVSROOT = (
                     36:            'freebsd', '/home/ncvs',
                     37:            'openbsd', '/home/OpenBSD/cvs',
                     38:            'learn', '/c/learncvs',
1.15    ! wosch      39:            'mozilla', '/a/mozilla-cvs',
1.10      wosch      40:            );
                     41:
                     42: $cvstreedefault = 'freebsd';
                     43: $cvstree = $cvstreedefault;
                     44: $cvsroot = $CVSROOT{"$cvstree"} || "/home/ncvs";
                     45:
                     46:
1.1       jfieber    47: $intro = "
                     48: This is a WWW interface to the FreeBSD CVS tree.
                     49: You can browse the file hierarchy by picking directories
                     50: (which have slashes after them, e.g. <b>src/</b>).
                     51: If you pick a file, you will see the revision history
                     52: for that file.
                     53: Selecting a revision number will download that revision of
                     54: the file.  There is a link at each revision to display
                     55: diffs between that revision and the previous one, and
                     56: a form at the bottom of the page that allows you to
                     57: display diffs between arbitrary revisions.
                     58: <p>
1.7       fenner     59: If you would like to use this CGI script on your own web server and
                     60: CVS tree, see <A HREF=\"http://www.freebsd.org/~fenner/cvsweb/\">
                     61: the CVSWeb distribution site</A>.
                     62: <p>
1.1       jfieber    63: Please send any suggestions, comments, etc. to
1.10      wosch      64: <A HREF=\"mailto:fenner\@freebsd.org\">Bill Fenner &lt;fenner\@freebsd.org&gt;</A>
1.1       jfieber    65: ";
                     66: $shortinstr = "
                     67: Click on a directory to enter that directory. Click on a file to display
                     68: its revision history and to get a
                     69: chance to display diffs between revisions.
                     70: ";
                     71:
                     72: $verbose = $v;
                     73: ($where = $ENV{'PATH_INFO'}) =~ s|^/||;
                     74: $where =~ s|/$||;
                     75: ($scriptname = $ENV{'SCRIPT_NAME'}) =~ s|^/?|/|;
                     76: $scriptname =~ s|/$||;
                     77: $scriptwhere = $scriptname . '/' . $where;
                     78: $scriptwhere =~ s|/$||;
                     79:
1.9       fenner     80: if ($query = $ENV{'QUERY_STRING'}) {
                     81:     foreach (split(/&/, $query)) {
1.7       fenner     82:        s/%(..)/sprintf("%c", hex($1))/ge;      # unquote %-quoted
                     83:        if (/(\S+)=(.*)/) {
                     84:            $input{$1} = $2;
                     85:        } else {
                     86:            $input{$_}++;
                     87:        }
                     88:     }
1.9       fenner     89:     $query = "?" . $query;
1.7       fenner     90: }
1.10      wosch      91:
                     92:
1.11      wosch      93: $config = '/usr/local/etc/cvsweb';
                     94: do "$config" if -f $config;
1.10      wosch      95:
                     96: if ($input{'cvsroot'}) {
                     97:     if ($CVSROOT{$input{'cvsroot'}}) {
                     98:        $cvstree = $input{'cvsroot'};
                     99:        $cvsroot = $CVSROOT{"$cvstree"};
                    100:     }
                    101: }
1.11      wosch     102: do "$config-$cvstree" if -f "$config-$cvstree";
1.10      wosch     103:
                    104: $fullname = $cvsroot . '/' . $where;
1.12      fenner    105:
1.10      wosch     106: if (!-d $cvsroot) {
1.12      fenner    107:        &fatal("500 Internal Error",'$CVSROOT not found!<P>The server on which the CVS tree lives is probably down.  Please try again in a few minutes.');
1.10      wosch     108: }
                    109:
                    110:
1.1       jfieber   111: if (-d $fullname) {
                    112:        opendir(DIR, $fullname) || &fatal("404 Not Found","$where: $!");
                    113:        @dir = readdir(DIR);
                    114:        closedir(DIR);
                    115:        if ($where eq '') {
1.2       jfieber   116:            print &html_header("FreeBSD CVS Repository");
1.1       jfieber   117:            print $intro;
                    118:        } else {
1.2       jfieber   119:            print &html_header("/$where");
1.1       jfieber   120:            print $shortinstr;
                    121:        }
                    122:        print "<p>Current directory: <b>/$where</b>\n";
1.2       jfieber   123:        print "<P><HR NOSHADE>\n";
1.1       jfieber   124:        # Using <MENU> in this manner violates the HTML2.0 spec but
                    125:        # provides the results that I want in most browsers.  Another
                    126:        # case of layout spooging up HTML.
                    127:        print "<MENU>\n";
1.9       fenner    128:        lookingforattic:
                    129:        for ($i = 0; $i <= $#dir; $i++) {
                    130:                if ($dir[$i] eq "Attic") {
                    131:                        last lookingforattic;
                    132:                }
                    133:        }
1.12      fenner    134:        $haveattic = 1 if ($i <= $#dir);
1.9       fenner    135:        if (!$input{"showattic"} && ($i <= $#dir) &&
                    136:                                opendir(DIR, $fullname . "/Attic")) {
                    137:                splice(@dir, $i, 1,
                    138:                        grep((s|^|Attic/|,!m|/\.|), readdir(DIR)));
                    139:                closedir(DIR);
                    140:        }
                    141:        # Sort without the Attic/ pathname.
                    142:        foreach (sort {($c=$a)=~s|.*/||;($d=$b)=~s|.*/||;($c cmp $d)} @dir) {
1.1       jfieber   143:            if ($_ eq '.') {
                    144:                next;
                    145:            }
1.9       fenner    146:            if (s|^Attic/||) {
                    147:                $attic = " (in the Attic)";
                    148:            } else {
                    149:                $attic = "";
                    150:            }
1.1       jfieber   151:            if ($_ eq '..') {
                    152:                next if ($where eq '');
                    153:                ($updir = $scriptwhere) =~ s|[^/]+$||;
                    154:                print "<IMG SRC=\"/icons/back.gif\"> ",
1.9       fenner    155:                    &link("Previous Directory",$updir . $query), "<BR>";
1.7       fenner    156: #              print "<IMG SRC=???> ",
                    157: #                  &link("Directory-wide diffs", $scriptwhere . '/*'), "<BR>";
1.1       jfieber   158:            } elsif (-d $fullname . "/" . $_) {
                    159:                print "<IMG SRC=\"/icons/dir.gif\"> ",
1.12      fenner    160:                    &link($_ . "/", $scriptwhere . '/' . $_ . '/' . $query),
                    161:                            $attic, "<BR>";
1.1       jfieber   162:            } elsif (s/,v$//) {
1.7       fenner    163: # TODO: add date/time?  How about sorting?
1.1       jfieber   164:                print "<IMG SRC=\"/icons/text.gif\"> ",
1.9       fenner    165:                    &link($_, $scriptwhere . '/' .
                    166:                            ($attic ? "Attic/" : "") . $_ . $query),
1.12      fenner    167:                            $attic, "<BR>";
1.1       jfieber   168:            }
                    169:        }
                    170:        print "</MENU>\n";
1.9       fenner    171:        if ($input{"only_on_branch"}) {
                    172:            print "<HR><FORM METHOD=\"GET\" ACTION=\"${scriptwhere}\">\n";
                    173:            print "Currently showing only branch $input{'only_on_branch'}.\n";
                    174:            $input{"only_on_branch"}="";
                    175:            foreach $k (keys %input) {
                    176:                print "<INPUT TYPE=hidden NAME=$k VALUE=$input{$k}>\n" if $input{$k};
                    177:            }
                    178:            print "<INPUT TYPE=SUBMIT VALUE=\"Show all branches\">\n";
                    179:            print "</FORM>\n";
                    180:        }
                    181:        $formwhere = $scriptwhere;
                    182:        $formwhere =~ s|Attic/?$|| if ($input{"showattic"});
1.12      fenner    183:        if ($haveattic) {
                    184:                print "<HR><FORM METHOD=\"GET\" ACTION=\"${formwhere}\">\n";
                    185:                $input{"showattic"}=!$input{"showattic"};
                    186:                foreach $k (keys %input) {
                    187:                    print "<INPUT TYPE=hidden NAME=$k VALUE=$input{$k}>\n" if $input{$k};
                    188:                }
                    189:                print "<INPUT TYPE=SUBMIT VALUE=\"";
                    190:                print ($input{"showattic"} ? "Show" : "Hide");
                    191:                print " attic directories\">\n";
                    192:                print "</FORM>\n";
                    193:        }
1.2       jfieber   194:        print &html_footer;
1.1       jfieber   195:        print "</BODY></HTML>\n";
                    196: } elsif (-f $fullname . ',v') {
1.7       fenner    197:        if ($input{'rev'} =~ /^[\d\.]+$/) {
                    198:                &checkout($fullname, $input{'rev'});
                    199:                exit;
                    200:        }
                    201:        if ($input{'r1'} && $input{'r2'}) {
                    202:                &dodiff($fullname, $input{'r1'}, $input{'tr1'},
                    203:                        $input{'r2'}, $input{'tr2'}, $input{'f'});
1.1       jfieber   204:                exit;
                    205:        }
1.12      fenner    206: print("going to dolog($fullname)\n") if ($verbose);
                    207:        &dolog($fullname);
                    208: } elsif ($fullname =~ s/\.diff$// && -f $fullname . ",v" &&
                    209:                                $input{'r1'} && $input{'r2'}) {
                    210:        # Allow diffs using the ".diff" extension
                    211:        # so that browsers that default to the URL
                    212:        # for a save filename don't save diff's as
                    213:        # e.g. foo.c
                    214:        &dodiff($fullname, $input{'r1'}, $input{'tr1'},
                    215:                $input{'r2'}, $input{'tr2'}, $input{'f'});
                    216:        exit;
                    217: } elsif (($newname = $fullname) =~ s|/([^/]+)$|/Attic/$1| &&
                    218:                                 -f $newname . ",v") {
                    219:        # The file has been removed and is in the Attic.
                    220:        # Send a redirect pointing to the file in the Attic.
                    221:        ($newplace = $scriptwhere) =~ s|/([^/]+)$|/Attic/$1|;
                    222:        &redirect($newplace);
                    223:        exit;
                    224: } elsif (0 && (@files = &safeglob($fullname . ",v"))) {
                    225:        print "Content-type: text/plain\n\n";
                    226:        print "You matched the following files:\n";
                    227:        print join("\n", @files);
                    228:        # Find the tags from each file
                    229:        # Display a form offering diffs between said tags
                    230: } else {
                    231:        # Assume it's a module name with a potential path following it.
1.13      fenner    232:        $xtra = $& if (($module = $where) =~ s|/.*||);
1.12      fenner    233:        # Is there an indexed version of modules?
                    234:        if (open(MODULES, "$cvsroot/CVSROOT/modules")) {
                    235:                while (<MODULES>) {
                    236:                        if (/^(\S+)\s+(\S+)/o && $module eq $1
                    237:                                && -d "${cvsroot}/$2" && $module ne $2) {
                    238:                                &redirect($scriptname . '/' . $2 . $xtra);
                    239:                        }
                    240:                }
                    241:        }
                    242:        &fatal("404 Not Found","$where: no such file or directory");
                    243: }
                    244:
                    245: sub htmlify {
                    246:        local($string, $pr) = @_;
                    247:
                    248:        $string =~ s/&/&amp;/g;
                    249:        $string =~ s/</&lt;/g;
                    250:        $string =~ s/>/&gt;/g;
                    251:
                    252:        if ($pr) {
                    253:                $string =~ s|\bpr(\W+[a-z]+/\W*)(\d+)|<A HREF=/cgi/query-pr.cgi?pr=$2>$&</A>|ig;
                    254:        }
                    255:
                    256:        $string;
                    257: }
                    258:
                    259: sub link {
                    260:        local($name, $where) = @_;
                    261:
                    262:        "<A HREF=\"$where\">$name</A>\n";
                    263: }
                    264:
                    265: sub revcmp {
                    266:        local($rev1, $rev2) = @_;
                    267:        local(@r1) = split(/\./, $rev1);
                    268:        local(@r2) = split(/\./, $rev2);
                    269:        local($a,$b);
                    270:
                    271:        while (($a = shift(@r1)) && ($b = shift(@r2))) {
                    272:            if ($a != $b) {
                    273:                return $a <=> $b;
                    274:            }
                    275:        }
                    276:        if (@r1) { return 1; }
                    277:        if (@r2) { return -1; }
                    278:        return 0;
                    279: }
                    280:
                    281: sub fatal {
                    282:        local($errcode, $errmsg) = @_;
                    283:        print "Status: $errcode\n";
                    284:        print &html_header("Error");
                    285: #      print "Content-type: text/html\n";
                    286: #      print "\n";
                    287: #      print "<HTML><HEAD><TITLE>Error</TITLE></HEAD>\n";
                    288: #      print "<BODY>Error: $errmsg</BODY></HTML>\n";
                    289:        print "Error: $errmsg\n";
                    290:        print &html_footer;
                    291:        exit(1);
                    292: }
                    293:
                    294: sub redirect {
                    295:        local($url) = @_;
                    296:        print "Status: 301 Moved\n";
                    297:        print "Location: $url\n";
                    298:        print &html_header("Moved");
                    299: #      print "Content-type: text/html\n";
                    300: #      print "\n";
                    301: #      print "<HTML><HEAD><TITLE>Moved</TITLE></HEAD>\n";
                    302: #      print "<BODY>This document is located <A HREF=$url>here</A>.</BODY></HTML>\n";
                    303:        print "This document is located <A HREF=$url>here</A>.\n";
                    304:        print &html_footer;
                    305:        exit(1);
                    306: }
                    307:
                    308: sub safeglob {
                    309:        local($filename) = @_;
                    310:        local($dirname);
                    311:        local(@results);
                    312:
                    313:        ($dirname = $filename) =~ s|/[^/]+$||;
                    314:        $filename =~ s|.*/||;
                    315:
                    316:        if (opendir(DIR, $dirname)) {
                    317:                $glob = $filename;
                    318:        #       transform filename from glob to regex.  Deal with:
                    319:        #       [, {, ?, * as glob chars
                    320:        #       make sure to escape all other regex chars
                    321:                $glob =~ s/([\.\(\)\|\+])/\\$1/g;
                    322:                $glob =~ s/\*/.*/g;
                    323:                $glob =~ s/\?/./g;
                    324:                $glob =~ s/{([^}]+)}/($t = $1) =~ s-,-|-g; "($t)"/eg;
                    325:                foreach (readdir(DIR)) {
                    326:                        if (/^${glob}$/) {
                    327:                                push(@results, $dirname . "/" .$_);
                    328:                        }
                    329:                }
                    330:        }
                    331:
                    332:        @results;
                    333: }
                    334:
                    335: sub checkout {
                    336:        local($fullname, $rev) = @_;
                    337:
                    338:        open(RCS, "co -p$rev '$fullname' 2>&1 |") ||
                    339:            &fail("500 Internal Error", "Couldn't co: $!");
                    340: # /home/ncvs/src/sys/netinet/igmp.c,v  -->  standard output
                    341: # or
                    342: # /home/ncvs/src/sys/netinet/igmp.c,v  -->  stdout
                    343: # revision 1.1.1.2
                    344: # /*
                    345:        $_ = <RCS>;
                    346:        if (/^(\S+),v\s+-->\s+st(andar)?d ?out(put)?\s*$/o && $1 eq $fullname) {
                    347:            # As expected
                    348:        } else {
                    349:            &fatal("500 Internal Error",
                    350:                "Unexpected output from co: $_");
                    351:        }
                    352:        $_ = <RCS>;
                    353:        if (/^revision\s+$rev\s*$/) {
                    354:            # As expected
                    355:        } else {
                    356:            &fatal("500 Internal Error",
                    357:                "Unexpected output from co: $_");
                    358:        }
                    359:        $| = 1;
                    360:        print "Content-type: text/plain\n\n";
                    361:        print <RCS>;
                    362:        close(RCS);
                    363: }
                    364:
                    365: sub dodiff {
                    366:        local($fullname, $r1, $tr1, $r2, $tr2, $f) = @_;
                    367:
                    368:        if ($r1 =~ /([^:]+)(:(.+))?/) {
                    369:            $rev1 = $1;
                    370:            $sym1 = $3;
                    371:        }
                    372:        if ($rev1 eq 'text') {
                    373:            $rev1 = $tr1;
                    374:        }
                    375:        if ($r2 =~ /([^:]+)(:(.+))?/) {
                    376:            $rev2 = $1;
                    377:            $sym2 = $3;
                    378:        }
                    379:        if ($rev2 eq 'text') {
                    380:            $rev2 = $tr2;
                    381:        }
                    382:        if (!($rev1 =~ /^[\d\.]+$/) || !($rev2 =~ /^[\d\.]+$/)) {
                    383:            &fatal("404 Not Found",
                    384:                    "Malformed query \"$ENV{'QUERY_STRING'}\"");
                    385:        }
                    386: #
                    387: # rev1 and rev2 are now both numeric revisions.
                    388: # Thus we do a DWIM here and swap them if rev1 is after rev2.
                    389: # XXX should we warn about the fact that we do this?
                    390:        if (&revcmp($rev1,$rev2) > 0) {
                    391:            ($tmp1, $tmp2) = ($rev1, $sym1);
                    392:            ($rev1, $sym1) = ($rev2, $sym2);
                    393:            ($rev2, $sym2) = ($tmp1, $tmp2);
                    394:        }
                    395: #
                    396: #      XXX Putting '-p' here is a personal preference
                    397:        if ($f eq 'c') {
                    398:            $difftype = '-p -c';
                    399:            $diffname = "Context diff";
                    400:        } elsif ($f eq 's') {
                    401:            $difftype = '--side-by-side --width=164';
                    402:            $diffname = "Side by Side";
                    403:        } else {
                    404:            $difftype = '-p -u';
                    405:            $diffname = "Unidiff";
                    406:        }
                    407: # XXX should this just be text/plain
                    408: # or should it have an HTML header and then a <pre>
                    409:        print "Content-type: text/plain\n\n";
                    410:        open(RCSDIFF, "rcsdiff $difftype -r$rev1 -r$rev2 '$fullname' 2>&1 |") ||
                    411:            &fail("500 Internal Error", "Couldn't rcsdiff: $!");
                    412: #
                    413: #===================================================================
                    414: #RCS file: /home/ncvs/src/sys/netinet/tcp_output.c,v
                    415: #retrieving revision 1.16
                    416: #retrieving revision 1.17
                    417: #diff -c -r1.16 -r1.17
                    418: #*** /home/ncvs/src/sys/netinet/tcp_output.c     1995/11/03 22:08:08     1.16
                    419: #--- /home/ncvs/src/sys/netinet/tcp_output.c     1995/12/05 17:46:35     1.17
                    420: #
                    421: # Ideas:
                    422: # - nuke the stderr output if it's what we expect it to be
                    423: # - Add "no differences found" if the diff command supplied no output.
                    424: #
                    425: #*** src/sys/netinet/tcp_output.c     1995/11/03 22:08:08     1.16
                    426: #--- src/sys/netinet/tcp_output.c     1995/12/05 17:46:35     1.17 RELENG_2_1_0
                    427: # (bogus example, but...)
                    428: #
                    429:        if ($difftype eq '-u') {
                    430:            $f1 = '---';
                    431:            $f2 = '\+\+\+';
                    432:        } else {
                    433:            $f1 = '\*\*\*';
                    434:            $f2 = '---';
                    435:        }
                    436:        while (<RCSDIFF>) {
                    437:            if (m|^$f1 $cvsroot|o) {
                    438:                s|$cvsroot/||o;
                    439:                if ($sym1) {
                    440:                    chop;
                    441:                    $_ .= " " . $sym1 . "\n";
                    442:                }
                    443:            } elsif (m|^$f2 $cvsroot|o) {
                    444:                s|$cvsroot/||o;
                    445:                if ($sym2) {
                    446:                    chop;
                    447:                    $_ .= " " . $sym2 . "\n";
                    448:                }
                    449:            }
                    450:            print $_;
                    451:        }
                    452:        close(RCSDIFF);
                    453: }
                    454:
                    455: sub dolog {
                    456:        local($fullname) = @_;
                    457:        local($curbranch,$symnames);    #...
                    458:
                    459:        print("Going to rlog '$fullname'\n") if ($verbose);
1.1       jfieber   460:        open(RCS, "rlog '$fullname'|") || &fatal("500 Internal Error",
                    461:                                                "Failed to spawn rlog");
                    462:        while (<RCS>) {
                    463:            print if ($verbose);
1.8       fenner    464:            if (/^branch:\s+([\d\.]+)/) {
                    465:                $curbranch = $1;
                    466:            }
1.1       jfieber   467:            if ($symnames) {
                    468:                if (/^\s+([^:]+):\s+([\d\.]+)/) {
                    469:                    $symrev{$1} = $2;
                    470:                    if ($revsym{$2}) {
                    471:                        $revsym{$2} .= ", ";
                    472:                    }
                    473:                    $revsym{$2} .= $1;
                    474:                } else {
                    475:                    $symnames = 0;
                    476:                }
                    477:            } elsif (/^symbolic names/) {
                    478:                $symnames = 1;
                    479:            } elsif (/^-----/) {
                    480:                last;
                    481:            }
                    482:        }
1.7       fenner    483:
                    484:        if ($onlyonbranch = $input{'only_on_branch'}) {
                    485:            ($onlyonbranch = $symrev{$onlyonbranch}) =~ s/\.0\././;
                    486:            ($onlybranchpoint = $onlyonbranch) =~ s/\.\d+$//;
                    487:        }
                    488:
1.1       jfieber   489: # each log entry is of the form:
                    490: # ----------------------------
                    491: # revision 3.7.1.1
                    492: # date: 1995/11/29 22:15:52;  author: fenner;  state: Exp;  lines: +5 -3
                    493: # log info
                    494: # ----------------------------
                    495:        logentry:
                    496:        while (!/^=========/) {
                    497:            $_ = <RCS>;
1.12      fenner    498:            last logentry if (!defined($_));    # EOF
1.1       jfieber   499:            print "R:", $_ if ($verbose);
                    500:            if (/^revision ([\d\.]+)/) {
                    501:                $rev = $1;
                    502:            } elsif (/^========/ || /^----------------------------$/) {
                    503:                next logentry;
                    504:            } else {
1.12      fenner    505:                # The rlog output is syntactically ambiguous.  We must
                    506:                # have guessed wrong about where the end of the last log
                    507:                # message was.
                    508:                # Since this is likely to happen when people put rlog output
                    509:                # in their commit messages, don't even bother keeping
                    510:                # these lines since we don't know what revision they go with
                    511:                # any more.
                    512:                next logentry;
                    513: #              &fatal("500 Internal Error","Error parsing RCS output: $_");
1.1       jfieber   514:            }
                    515:            $_ = <RCS>;
                    516:            print "D:", $_ if ($verbose);
1.9       fenner    517:            if (m|^date:\s+(\d+)/(\d+)/(\d+)\s+(\d+):(\d+):(\d+);\s+author:\s+(\S+);\s+state:\s+(\S+);|) {
1.1       jfieber   518:                $yr = $1;
                    519:                # damn 2-digit year routines
                    520:                if ($yr > 100) {
                    521:                    $yr -= 1900;
                    522:                }
                    523:                $date{$rev} = &timelocal($6,$5,$4,$3,$2 - 1,$yr);
                    524:                $author{$rev} = $7;
1.9       fenner    525:                $state{$rev} = $8;
1.1       jfieber   526:            } else {
                    527:                &fatal("500 Internal Error", "Error parsing RCS output: $_");
                    528:            }
                    529:            line:
                    530:            while (<RCS>) {
                    531:                print "L:", $_ if ($verbose);
                    532:                next line if (/^branches:\s/);
                    533:                last line if (/^----------------------------$/ || /^=========/);
                    534:                $log{$rev} .= $_;
                    535:            }
                    536:            print "E:", $_ if ($verbose);
                    537:        }
                    538:        close(RCS);
                    539:        print "Done reading RCS file\n" if ($verbose);
                    540: #
                    541: # Sort the revisions into commit-date order.
                    542:        @revorder = sort {$date{$b} <=> $date{$a}} keys %date;
                    543:        print "Done sorting revisions\n" if ($verbose);
                    544: #
                    545: # HEAD is an artificial tag which is simply the highest tag number on the main
1.8       fenner    546: # branch, unless there is a branch tag in the RCS file in which case it's the
                    547: # highest revision on that branch.  Find it by looking through @revorder; it
                    548: # is the first commit listed on the appropriate branch.
                    549:        $headrev = $curbranch || "1";
1.1       jfieber   550:        revision:
                    551:        for ($i = 0; $i <= $#revorder; $i++) {
1.8       fenner    552:            if ($revorder[$i] =~ /^(\S*)\.\d+$/ && $headrev eq $1) {
1.1       jfieber   553:                if ($revsym{$revorder[$i]}) {
                    554:                    $revsym{$revorder[$i]} .= ", ";
                    555:                }
                    556:                $revsym{$revorder[$i]} .= "HEAD";
                    557:                $symrev{"HEAD"} = $revorder[$i];
                    558:                last revision;
                    559:            }
                    560:        }
                    561:        print "Done finding HEAD\n" if ($verbose);
                    562: #
                    563: # Now that we know all of the revision numbers, we can associate
                    564: # absolute revision numbers with all of the symbolic names, and
                    565: # pass them to the form so that the same association doesn't have
                    566: # to be built then.
                    567: #
                    568: # should make this a case-insensitive sort
                    569:        foreach (sort keys %symrev) {
                    570:            $rev = $symrev{$_};
                    571:            if ($rev =~ /^(\d+(\.\d+)+)\.0\.(\d+)$/) {
1.7       fenner    572:                push(@branchnames, $_);
1.1       jfieber   573:                #
                    574:                # A revision number of A.B.0.D really translates into
                    575:                # "the highest current revision on branch A.B.D".
                    576:                #
                    577:                # If there is no branch A.B.D, then it translates into
                    578:                # the head A.B .
                    579:                #
                    580:                $head = $1;
                    581:                $branch = $3;
                    582:                $regex = $head . "." . $branch;
                    583:                $regex =~ s/\./\./g;
                    584:                #             <
                    585:                #           \____/
                    586:                $rev = $head;
                    587:
                    588:                revision:
                    589:                foreach $r (@revorder) {
                    590:                    if ($r =~ /^${regex}/) {
                    591:                        $rev = $head . "." . $branch;
                    592:                        last revision;
                    593:                    }
                    594:                }
                    595:                $revsym{$rev} .= ", " if ($revsym{$rev});
                    596:                $revsym{$rev} .= $_;
1.8       fenner    597:                if ($rev ne $head) {
                    598:                    $branchpoint{$head} .= ", " if ($branchpoint{$head});
                    599:                    $branchpoint{$head} .= $_;
                    600:                }
1.1       jfieber   601:            }
                    602:            $sel .= "<OPTION VALUE=\"${rev}:${_}\">$_\n";
                    603:        }
                    604:        print "Done associating revisions with branches\n" if ($verbose);
1.2       jfieber   605:         print &html_header("CVS log for $where");
1.9       fenner    606:        ($upwhere = $where) =~ s|(Attic/)?[^/]+$||;
                    607:        print "Up to ", &link($upwhere,$scriptname . "/" . $upwhere . $query);
1.1       jfieber   608:        print "<BR>\n";
                    609:        print "<A HREF=\"#diff\">Request diff between arbitrary revisions</A>\n";
1.2       jfieber   610:        print "<HR NOSHADE>\n";
1.8       fenner    611:        if ($curbranch) {
                    612:            print "Default branch is ";
                    613:            print ($revsym{$curbranch} || $curbranch);
                    614:        } else {
                    615:            print "No default branch";
                    616:        }
                    617:        print "<BR><HR NOSHADE>\n";
1.1       jfieber   618: # The other possible U.I. I can see is to have each revision be hot
                    619: # and have the first one you click do ?r1=foo
                    620: # and since there's no r2 it keeps going & the next one you click
                    621: # adds ?r2=foo and performs the query.
                    622: # I suppose there's no reason we can't try both and see which one
                    623: # people prefer...
                    624:
                    625:        for ($i = 0; $i <= $#revorder; $i++) {
                    626:            $_ = $revorder[$i];
1.7       fenner    627:            ($br = $_) =~ s/\.\d+$//;
                    628:            next if ($onlyonbranch && $br ne $onlyonbranch &&
                    629:                                            $_ ne $onlybranchpoint);
1.4       fenner    630:            print "<a NAME=\"rev$_\"></a>";
                    631:            foreach $sym (split(", ", $revsym{$_})) {
                    632:                print "<a NAME=\"$sym\"></a>";
                    633:            }
                    634:            if ($revsym{$br} && !$nameprinted{$br}) {
                    635:                foreach $sym (split(", ", $revsym{$br})) {
                    636:                    print "<a NAME=\"$sym\"></a>";
                    637:                }
                    638:                $nameprinted{$br}++;
                    639:            }
                    640:            print "\n";
1.10      wosch     641:            print "<A HREF=\"$scriptwhere?rev=$_" .
1.12      fenner    642:                &cvsroot . "\"><b>$_</b></A>";
1.1       jfieber   643:            if (/^1\.1\.1\.\d+$/) {
                    644:                print " <i>(vendor branch)</i>";
                    645:            }
1.14      wosch     646:            print " <i>" . &ctime($date{$_}) . " UTC</i> by ";
1.1       jfieber   647:            print "<i>" . $author{$_} . "</i>\n";
                    648:            if ($revsym{$_}) {
                    649:                print "<BR>CVS Tags: <b>$revsym{$_}</b>";
                    650:            }
1.4       fenner    651:            if ($revsym{$br})  {
1.1       jfieber   652:                if ($revsym{$_}) {
                    653:                    print "; ";
                    654:                } else {
                    655:                    print "<BR>";
                    656:                }
1.8       fenner    657:                print "Branch: <b>$revsym{$br}</b>\n";
                    658:            }
                    659:            if ($branchpoint{$_}) {
                    660:                if ($revsym{$br} || $revsym{$_}) {
                    661:                    print "; ";
                    662:                } else {
                    663:                    print "<BR>";
                    664:                }
                    665:                print "Branch point for: <b>$branchpoint{$_}</b>\n";
1.1       jfieber   666:            }
                    667:            # Find the previous revision on this branch.
                    668:            @prevrev = split(/\./, $_);
                    669:            if (--$prevrev[$#prevrev] == 0) {
                    670:                # If it was X.Y.Z.1, just make it X.Y
                    671:                if ($#prevrev > 1) {
                    672:                    pop(@prevrev);
                    673:                    pop(@prevrev);
                    674:                } else {
                    675:                    # It was rev 1.1 (XXX does CVS use revisions
                    676:                    # greater than 1.x?)
                    677:                    if ($prevrev[0] != 1) {
                    678:                        print "<i>* I can't figure out the previous revision! *</i>\n";
                    679:                    }
                    680:                }
                    681:            }
                    682:            if ($prevrev[$#prevrev] != 0) {
                    683:                $prev = join(".", @prevrev);
1.7       fenner    684:                print "<BR><A HREF=\"${scriptwhere}.diff?r1=$prev";
1.12      fenner    685:                print "&r2=$_" . &cvsroot . "\">Diffs to $prev</A>\n";
1.1       jfieber   686:                #
                    687:                # Plus, if it's on a branch, and it's not a vendor branch,
                    688:                # offer to diff with the immediately-preceding commit if it
                    689:                # is not the previous revision as calculated above
                    690:                # and if it is on the HEAD (or at least on a higher branch)
                    691:                # (e.g. change gets committed and then brought
                    692:                # over to -stable)
                    693:                if (!/^1\.1\.1\.\d+$/ && ($i != $#revorder) &&
                    694:                                        ($prev ne $revorder[$i+1])) {
                    695:                    @tmp1 = split(/\./, $revorder[$i+1]);
                    696:                    @tmp2 = split(/\./, $_);
                    697:                    if ($#tmp1 < $#tmp2) {
1.7       fenner    698:                        print "; <A HREF=\"${scriptwhere}.diff?r1=$revorder[$i+1]";
1.10      wosch     699:                        print "&r2=$_" . &cvsroot .
1.12      fenner    700:                             "\">Diffs to $revorder[$i+1]</A>\n";
1.1       jfieber   701:                    }
                    702:                }
                    703:            }
1.9       fenner    704:            if ($state{$_} eq "dead") {
                    705:                print "<BR><B><I>FILE REMOVED</I></B>\n";
                    706:            }
1.1       jfieber   707:            print "<PRE>\n";
1.7       fenner    708:            print &htmlify($log{$_}, 1);
1.2       jfieber   709:            print "</PRE><HR NOSHADE>\n";
1.1       jfieber   710:        }
                    711:        print "<A NAME=diff>\n";
                    712:        print "This form allows you to request diff's between any two\n";
                    713:        print "revisions of a file.  You may select a symbolic revision\n";
                    714:        print "name using the selection box or you may type in a numeric\n";
                    715:        print "name using the type-in text box.\n";
                    716:        print "</A><P>\n";
1.7       fenner    717:        print "<FORM METHOD=\"GET\" ACTION=\"${scriptwhere}.diff\">\n";
1.12      fenner    718:         print "<INPUT TYPE=HIDDEN NAME=\"cvsroot\" VALUE=\"$cvstree\">\n"
1.10      wosch     719:              if &cvsroot;
1.1       jfieber   720:        print "Diffs between \n";
                    721:        print "<SELECT NAME=\"r1\">\n";
                    722:        print "<OPTION VALUE=\"text\" SELECTED>Use Text Field\n";
                    723:        print $sel;
                    724:        print "</SELECT>\n";
                    725:        print "<INPUT TYPE=\"TEXT\" NAME=\"tr1\" VALUE=\"$revorder[$#revorder]\">\n";
                    726:        print " and \n";
                    727:        print "<SELECT NAME=\"r2\">\n";
                    728:        print "<OPTION VALUE=\"text\" SELECTED>Use Text Field\n";
                    729:        print $sel;
                    730:        print "</SELECT>\n";
                    731:        print "<INPUT TYPE=\"TEXT\" NAME=\"tr2\" VALUE=\"$revorder[0]\">\n";
                    732:        print "<BR><INPUT TYPE=RADIO NAME=\"f\" VALUE=u CHECKED>Unidiff<br>\n";
                    733:        print "<INPUT TYPE=RADIO NAME=\"f\" VALUE=c>Context diff<br>\n";
1.7       fenner    734:        print "<INPUT TYPE=RADIO NAME=\"f\" VALUE=s>Side-by-Side<br>\n";
1.1       jfieber   735:        print "<INPUT TYPE=SUBMIT VALUE=\"Get Diffs\">\n";
                    736:        print "</FORM>\n";
1.7       fenner    737:        print "<HR noshade>\n";
                    738:        print "<A name=branch>\n";
                    739:        print "You may select to see revision information from only\n";
                    740:        print "a single branch.\n";
                    741:        print "</A><P>\n";
                    742:        print "<FORM METHOD=\"GET\" ACTION=\"$scriptwhere\">\n";
1.10      wosch     743:         print qq{<input type=hidden name=cvsroot value=$cvstree>\n}
                    744:              if &cvsroot;
1.7       fenner    745:        print "Branch: \n";
                    746:        print "<SELECT NAME=\"only_on_branch\">\n";
1.9       fenner    747:        print "<OPTION VALUE=\"\"";
                    748:        print " SELECTED" if ($input{"only_on_branch"} eq "");
                    749:        print ">Show all branches\n";
1.7       fenner    750:        foreach (sort @branchnames) {
1.9       fenner    751:                print "<OPTION";
                    752:                print " SELECTED" if ($input{"only_on_branch"} eq $_);
                    753:                print ">${_}\n";
1.7       fenner    754:        }
                    755:        print "</SELECT>\n";
                    756:        print "<INPUT TYPE=SUBMIT VALUE=\"View Branch\">\n";
                    757:        print "</FORM>\n";
1.2       jfieber   758:         print &html_footer;
1.1       jfieber   759:        print "</BODY></HTML>\n";
1.10      wosch     760: }
                    761:
                    762: sub cvsroot {
                    763:     return '' if $cvstree eq $cvstreedefault;
                    764:     return "&cvsroot=" . $cvstree;
1.1       jfieber   765: }

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