Sat Jul 23 22:54:35 UTC 2005  Alberto Bertogli <albertogli@telpin.com.ar>
  * Implement file history (a "focused" version of shortlog).
diff -rN -u old-darcsweb/darcsweb.cgi new-darcsweb/darcsweb.cgi
--- old-darcsweb/darcsweb.cgi	2015-10-18 11:42:03.000000000 +0000
+++ new-darcsweb/darcsweb.cgi	2015-10-18 11:42:03.000000000 +0000
@@ -273,8 +273,12 @@
 | <a href="%(myreponame)s;a=headfilediff;h=%(hash)s;f=%(fname)s">headfilediff</a>
 		""" % { "myreponame": config.myreponame, 'hash': h, 'fname': f }
 
-	print '<br/><br/></div>'
+	if f:
+		print """
+| <a class="link" href="%(myreponame)s;a=filehistory;f=%(fname)s">filehistory</a>
+		""" % { "myreponame": config.myreponame, 'fname': f }
 
+	print '<br/><br/></div>'
 
 def print_plain_header():
 	print "Content-type: text/plain\n"
@@ -475,13 +479,26 @@
 
 	return handler
 
-def get_last_patches(last = 15, topi = 0):
+def get_last_patches(last = 15, topi = 0, fname = None):
 	"""Gets the last N patches from the repo, returns a patch list. If
 	"topi" is specified, then it will return the N patches that preceeded
 	the patch number topi in the list. It sounds messy but it's quite
-	simple. FIXME: there's probably a more efficient way of doing this."""
+	simple. You can optionally pass a filename and only changes that
+	affect it will be returned. FIXME: there's probably a more efficient
+	way of doing this."""
+
+	# darcs calculate last first, and then filters the filename,
+	# so it's not so simple to combine them; that's why we do so much
+	# special casing here
 	toget = last + topi
-	handler = get_changes_handler("-s --last=%d" % toget)
+
+	if fname:
+		if fname[0] == '/': fname = fname[1:]
+		s = "-s " + fname
+	else:
+		s = "-s --last=%d" % toget
+
+	handler = get_changes_handler(s)
 
 	# return the list of all the patch objects
 	return handler.get_list()[topi:toget]
@@ -531,10 +548,19 @@
 		print '<div class="pre" %s>' % color + escape(l) + '</div>'
 
 
-def print_shortlog(last = 50, topi = 0):
-	ps = get_last_patches(last, topi)
-	print '<div><a class="title" href="%s;a=shortlog">shortlog</a></div>' \
-			% config.myreponame
+def print_shortlog(last = 50, topi = 0, fname = None):
+	ps = get_last_patches(last, topi, fname)
+
+	if fname:
+		title = '<a class="title" href="%s;a=filehistory;f=%s">' % \
+				(config.myreponame, fname)
+		title += 'history for file %s' % fname
+		title += '</a>'
+	else:
+		title = '<a class="title" href="%s;a=shortlog">shortlog</a>' \
+				% config.myreponame
+
+	print '<div>%s</div>' % title
 	print '<table cellspacing="0">'
 
 	if topi != 0:
@@ -542,8 +568,14 @@
 		ntopi = topi - last
 		if ntopi < 0:
 			ntopi = 0
-		print '<td><a href="%s;a=shortlog;topi=%d">...</a></td>' % \
-				(config.myreponame, ntopi)
+		print '<tr><td>'
+		if fname:
+			print '<a href="%s;a=filehistory;topi=%d;f=%s">...</a>' \
+				% (config.myreponame, ntopi, fname)
+		else:
+			print '<a href="%s;a=shortlog;topi=%d">...</a>' \
+				% (config.myreponame, ntopi)
+		print '</td></tr>'
 
 	alt = False
 	for p in ps:
@@ -574,11 +606,14 @@
 
 	if len(ps) >= last:
 		# only show if we've not shown them all already
-		print """
-<tr><td>
-  <a href="%s;a=shortlog;topi=%d">...</a>
-</td></tr>
-		""" % (config.myreponame, topi + last)
+		print '<tr><td>'
+		if fname:
+			print '<a href="%s;a=filehistory;topi=%d;f=%s">...</a>' \
+				% (config.myreponame, topi + last, fname)
+		else:
+			print '<a href="%s;a=shortlog;topi=%d">...</a>' \
+				% (config.myreponame, topi + last)
+		print '</td></tr>'
 	print "</table>"
 
 
@@ -878,9 +913,11 @@
 
 		if show_diff:
 			print """
-<td><a class="link" href="%(myreponame)s;a=filediff;h=%(hash)s;f=%(file)s">
-  diff
-</a></td>
+<td>
+  <a class="link" href="%(myreponame)s;a=filediff;h=%(hash)s;f=%(file)s">
+    diff</a> |
+  <a class="link" href="%(myreponame)s;a=filehistory;f=%(file)s">history</a>
+</td>
 			""" % {
 				'myreponame': config.myreponame,
 				'hash': p.hash,
@@ -946,7 +983,10 @@
 		if f in dlist:
 			print """
   <td><a class="list" href="%(myrname)s;a=tree;f=%(newf)s">%(f)s</a></td>
-  <td><a class="link" href="%(myrname)s;a=tree;f=%(newf)s">tree</a></td>
+  <td>
+    <a class="link" href="%(myrname)s;a=filehistory;f=%(newf)s">history</a> |
+    <a class="link" href="%(myrname)s;a=tree;f=%(newf)s">tree</a>
+  </td>
 			""" % {
 				'myrname': config.myreponame,
 				'f': f,
@@ -955,7 +995,10 @@
 		else:
 			print """
   <td><a class="list" href="%(myrname)s;a=headblob;f=%(fullf)s">%(f)s</a></td>
-  <td><a class="link" href="%(myrname)s;a=headblob;f=%(fullf)s">headblob</a></td>
+  <td>
+    <a class="link" href="%(myrname)s;a=filehistory;f=%(fullf)s">history</a> |
+    <a class="link" href="%(myrname)s;a=headblob;f=%(fullf)s">headblob</a>
+  </td>
 			""" % {
 				'myrname': config.myreponame,
 				'f': f,
@@ -1004,6 +1047,11 @@
 	print_shortlog(topi = topi)
 	print_footer()
 
+def do_filehistory(topi, f):
+	print_header()
+	print_navbar(f = fname)
+	print_shortlog(topi = topi, fname = fname)
+	print_footer()
 
 def do_log(topi):
 	print_header()
@@ -1223,6 +1271,13 @@
 	else:
 		topi = 0
 	do_shortlog(topi)
+elif action == "filehistory":
+	if form.has_key("topi"):
+		topi = int(filter_num(form["topi"].value))
+	else:
+		topi = 0
+	fname = filter_file(form["f"].value)
+	do_filehistory(topi, fname)
 elif action == "log":
 	if form.has_key("topi"):
 		topi = int(filter_num(form["topi"].value))