问题
Markdown is important for documentation, it is very nice to see README.md can be automatically show in html format in github like https://github.com/twitter/bootstrap/blob/master/README.md
gitweb is written in perl script, and there is plugin for markdown in perl already.
I want to check whether there is plugin/solution to let gitweb automatically show html files for markdown format.
回答1:
Here's something you can stick somewhere under sub git_summary in your gitweb.perl or gitweb.cgi. Note that it depends on an external markdown executable.
if (!$prevent_xss) {
$file_name = "README.md";
my $proj_head_hash = git_get_head_hash($project);
my $readme_blob_hash = git_get_hash_by_path($proj_head_hash, "README.md", "blob");
if ($readme_blob_hash) { # if README.md exists
print "<div class=\"header\">readme</div>\n";
print "<div class=\"readme page_body\">"; # TODO find/create a better CSS class than page_body
my $cmd_markdownify = $GIT . " " . git_cmd() . " cat-file blob " . $readme_blob_hash . " | markdown |";
open FOO, $cmd_markdownify or die_error(500, "Open git-cat-file blob '$hash' failed");
while (<FOO>) {
print $_;
}
close(FOO);
print "</div>";
}
}
I don't really know Perl, so this is a dirty hack more than anything else, but it works.
回答2:
I use following post-receive hook in my remote repositories which are made browsable with gitweb.
#!/bin/sh
#
# Post-receive hook script which generates README.html to git-dir from
# README.md found at the head of master branch in repository.
#
# Gitweb can read the README.html and embed it to the project summary page.
git cat-file blob HEAD:README.md | markdown > $GIT_DIR/README.html
That script is run when I push commits from my local work repositories to the remote bare ones. You could use that or something similar depending on your workflow/setup.
More information about git hooks: http://book.git-scm.com/5_git_hooks.html
回答3:
Here are my modifications to gitweb.cgi based on the accepted answer, so that:
README.mdin the project root is displayed (as in accepted answer)- Any
*.mdfile is displayed if it is chosen as file from the tree view - local links among .md files in a project are preserved (i.e.
(my parent)[../parent.md]would refer correctly); should work for images as well
Note that I'm using sudo apt-get install libtext-markdown-perl on Ubuntu to provide the required markdown executable.
Here are the modifications as a diff patch:
--- /usr/share/gitweb/gitweb.cgi.orig 2016-04-13 10:28:03.268872899 +0200
+++ /usr/share/gitweb/gitweb.cgi 2016-04-13 10:39:02.344875516 +0200
@@ -16,8 +16,9 @@
use Encode;
use Fcntl ':mode';
use File::Find qw();
-use File::Basename qw(basename);
+use File::Basename qw(basename dirname);
use Time::HiRes qw(gettimeofday tv_interval);
+use File::Spec; # hack
binmode STDOUT, ':utf8';
our $t0 = [ gettimeofday() ];
@@ -6585,6 +6586,20 @@
print "\n</div>\n"; # class="readme"
}
+ # hack
+ if (!$prevent_xss) {
+ $file_name = "README.md";
+ my $proj_head_hash = git_get_head_hash($project);
+ my $readme_blob_hash = git_get_hash_by_path($proj_head_hash, "README.md", "blob");
+
+ if ($readme_blob_hash) { # if README.md exists
+ print "<div class=\"header\">$file_name</div>\n";
+ print "<div class=\"readme page_body\">"; # TODO find/create a better CSS class than page_body
+ print get_markdown($file_name, $readme_blob_hash);
+ print "</div>";
+ }
+ }
+
# we need to request one more than 16 (0..15) to check if
# those 16 are all
my @commitlist = $head ? parse_commits($head, 17) : ();
@@ -7059,6 +7074,9 @@
$fd = run_highlighter($fd, $highlight, $syntax)
if $syntax;
+ # hack
+ my $ismarkdown = ($file_name =~ /md$/);
+
git_header_html(undef, $expires);
my $formats_nav = '';
if (defined $hash_base && (my %co = parse_commit($hash_base))) {
@@ -7102,6 +7120,10 @@
href(action=>"blob_plain", hash=>$hash,
hash_base=>$hash_base, file_name=>$file_name) .
qq!" />\n!;
+ } elsif ($ismarkdown) {
+ print qq!<div class="readme page_body">\n!;
+ print get_markdown($file_name, $hash);
+ print qq!</div>\n!; # $cmd_markdownify
} else {
my $nr;
while (my $line = <$fd>) {
@@ -7119,6 +7141,79 @@
git_footer_html();
}
+# hack
+sub get_norm_rel_path { # http://www.perlmonks.org/bare/?node_id=11907
+ my $unnormpath = shift;
+ while ($unnormpath =~ m!/\.!) {
+ $unnormpath =~ s!/[^\/]+/\.\.!!;
+ # print "Path is now -+$unnormpath+-\n";
+ }
+ return $unnormpath;
+}
+sub get_markdown {
+ my $tfilename = shift;
+ my $thash = shift;
+ my $rethtmlstr = "";
+ use open ":encoding(utf8)"; # needed to have utf8 survive through the shell pipe
+ my $cmd_markdownify = $GIT . " " . git_cmd() . " cat-file blob " . $thash . " | perl -e 'my \$str = do { local \$/; <STDIN> }; \$str =~ s/<!--.*?--\s*>//gs; print \$str;' | markdown |";
+ open (FOO, $cmd_markdownify) or die_error(500, "Open git-cat-file blob '$thash' failed");
+ while (<FOO>) {
+ if ($_ =~ /(<img[^>]src=")(.*?)"/) {
+ my $origcut = "".$2;
+ my $testcut = "".$2;
+ my $is_anchor = ($testcut =~ /^#/);
+ my $is_absolute = ($testcut =~ /^http/);
+ my $is_relative_up = ($testcut =~ /^\.\./);
+ my $is_local_link = ((!$is_anchor) and (!$is_absolute));
+ my $tdir = dirname($tfilename);
+ my $is_tdir_proper = (($tdir ne "") and ($tdir ne "."));
+ #print "XX: $origcut ($is_anchor, $is_absolute - $is_local_link) ($is_relative_up, $is_tdir_proper, $tdir, $tfilename)\n"; # dbg
+ if ($is_local_link) {
+ if ($is_relative_up) { # normalize
+ if ($is_tdir_proper) {
+ # cheat with absolute path here:
+ my $resolved = get_norm_rel_path( File::Spec->rel2abs ("$origcut", "/$tdir" ) );
+ $resolved = substr $resolved, 1;
+ #print "YY: $resolved\n";
+ $_ =~ s!(<img[^>]src=")(.*?)"!$1?p=$project;a=blob_plain;f=$resolved"!gi;
+ }
+ } else {
+ $_ =~ s!(<img[^>]src=")(.*?)"!$1?p=$project;a=blob_plain;f=$2"!gi;
+ #print "ZZ: $_\n";
+ }
+ }
+ }
+ if ($_ =~ /(<a[^>]href=")(.*?)"/) {
+ my $origcut = "".$2;
+ my $testcut = "".$2;
+ my $is_anchor = ($testcut =~ /^#/);
+ my $is_absolute = ($testcut =~ /^http/);
+ my $is_relative_up = ($testcut =~ /^\.\./);
+ my $is_local_link = ((!$is_anchor) and (!$is_absolute));
+ my $tdir = dirname($tfilename);
+ my $is_tdir_proper = (($tdir ne "") and ($tdir ne "."));
+ #print "XX: $origcut ($is_anchor, $is_absolute - $is_local_link) ($is_relative_up, $is_tdir_proper, $tdir, $tfilename)\n"; # dbg
+ if ($is_local_link) {
+ if ($is_relative_up) { # normalize
+ if ($is_tdir_proper) {
+ # cheat with absolute path here:
+ my $resolved = get_norm_rel_path( File::Spec->rel2abs ("$origcut", "/$tdir" ) );
+ $resolved = substr $resolved, 1;
+ #print "YY: $resolved\n";
+ $_ =~ s!(<a[^>]href=")(.*?)"!$1?p=$project;a=blob;f=$resolved"!gi;
+ }
+ } else {
+ $_ =~ s!(<a[^>]href=")(.*?)"!$1?p=$project;a=blob;f=$2"!gi;
+ #print "ZZ: $_\n";
+ }
+ }
+ }
+ $rethtmlstr .= $_;
+ }
+ close(FOO);
+ return $rethtmlstr;
+}
+
sub git_tree {
if (!defined $hash_base) {
$hash_base = "HEAD";
回答4:
I use this tampermonkey script in chrome to render README.md files as html, directly in gitweb: https://gist.github.com/nemoo/ee47cd9ad2a5b4fdddfa Works nicely even if you do not have access to the gitweb server.
来源：https://stackoverflow.com/questions/8321649/gitweb-how-to-display-markdown-file-in-html-format-automatically-like-github