hgk: add --limit, and revranges

contrib/hgk

@@ -30,15 +30,29 b' proc getcommits {rargs} {'
     set startmsecs [clock clicks -milliseconds]
     set nextupdate [expr $startmsecs + 100]
     set ncmupdate 1
+    set limit 0
+    set revargs {}
+    for {set i 0} {$i < [llength $rargs]} {incr i} {
+	set opt [lindex $rargs $i]
+	if {$opt == "--limit"} {
+	    incr i
+	    set limit [lindex $rargs $i]
+	} else {
+	    lappend revargs $opt
+	}
+    }
     if [catch {
-	set parse_args [concat --default HEAD $rargs]
+	set parse_args [concat --default HEAD $revargs]
 	set parsed_args [split [eval exec hg debug-rev-parse $parse_args] "\n"]
-    }] {
+    } err] {
 	# if git-rev-parse failed for some reason...
 	if {$rargs == {}} {
-	    set rargs HEAD
-	}
-	set parsed_args $rargs
+	    set revargs HEAD
+	}
+	set parsed_args $revargs
+    }
+    if {$limit > 0} {
+	set parsed_args [concat -n $limit $parsed_args]
     }
     if [catch {
 	set commfd [open "|hg debug-rev-list --header --topo-order --parents $parsed_args" r]

hgext/hgk.py

@@ -7,7 +7,7 b''
 
 from mercurial.demandload import *
 demandload(globals(), 'time sys signal os')
-demandload(globals(), 'mercurial:hg,fancyopts,commands,ui,util,patch')
+demandload(globals(), 'mercurial:hg,fancyopts,commands,ui,util,patch,revlog')
 
 def difftree(ui, repo, node1=None, node2=None, *files, **opts):
     """diff trees from two commits"""
@@ -217,7 +217,6 b' def revtree(args, repo, full="tree", max'
 
     # walk the repository looking for commits that are in our
     # reachability graph
-    #for i in range(repo.changelog.count()-1, -1, -1):
     for i, changes in chlogwalk():
         n = repo.changelog.node(i)
         mask = is_reachable(want_sha1, reachable, n)
@@ -252,6 +251,19 b' def revtree(args, repo, full="tree", max'
                 break
             count += 1
 
+def revparse(ui, repo, *revs, **opts):
+    """Parse given revisions"""
+    def revstr(rev):
+        if rev == 'HEAD':
+            rev = 'tip'
+        return revlog.hex(repo.lookup(rev))
+
+    for r in revs:
+        revrange = r.split(':', 1)
+        ui.write('%s\n' % revstr(revrange[0]))
+        if len(revrange) == 2:
+            ui.write('^%s\n' % revstr(revrange[1]))
+
 # git rev-list tries to order things by date, and has the ability to stop
 # at a given commit without walking the whole repo.  TODO add the stop
 # parameter
@@ -264,13 +276,16 b' def revlist(ui, repo, *revs, **opts):'
     copy = [x for x in revs]
     revtree(copy, repo, full, opts['max_count'], opts['parents'])
 
-def view(ui, repo, *etc):
+def view(ui, repo, *etc, **opts):
     "start interactive history viewer"
     os.chdir(repo.root)
-    os.system(ui.config("hgk", "path", "hgk") + " " + " ".join(etc))
+    optstr = ' '.join(['--%s %s' % (k, v) for k, v in opts.iteritems()])
+    os.system(ui.config("hgk", "path", "hgk") + " %s %s" % (optstr, " ".join(etc)))
 
 cmdtable = {
-    "view": (view, [], 'hg view'),
+    "view": (view,
+             [('l', 'limit', '', 'limit number of changes displayed')],
+             'hg view [-l LIMIT] [REVRANGE]'),
     "debug-diff-tree": (difftree, [('p', 'patch', None, 'generate patch'),
                             ('r', 'recursive', None, 'recursive'),
                             ('P', 'pretty', None, 'pretty'),
@@ -281,6 +296,9 b' cmdtable = {'
     "debug-cat-file": (catfile, [('s', 'stdin', None, 'stdin')],
                  "hg debug-cat-file [options] type file"),
     "debug-merge-base": (base, [], "hg debug-merge-base node node"),
+    'debug-rev-parse': (revparse,
+                        [('', 'default', '', 'ignored')],
+                        "hg debug-rev-parse rev"),
     "debug-rev-list": (revlist, [('H', 'header', None, 'header'),
                            ('t', 'topo-order', None, 'topo-order'),
                            ('p', 'parents', None, 'parents'),