[PATCH] hgweb: display difference for a changeset against any parents (issue2810)
Weiwen Liu
weiwen at fb.com
Thu Nov 15 18:49:43 CST 2012
# HG changeset patch
# User Weiwen <weiwen at fb.com>
# Date 1352757939 28800
# Node ID 3502c78b6b53ec6ca3e583019e8704014f9357f8
# Parent fb14a5dcdc62987512820531fe60719d650491b6
hgweb: display difference for a changeset against any parents (issue2810)
During merge of branches, it is useful to compare merge results against
the two parents. This change adds this support to hgweb. To specify
which parent to compare to, use rev/12345?base=12300 where 12300 is a
parent changeset number. Two links are added to changeset web page so
that one can choose which parent to compare to.
diff --git a/mercurial/hgweb/webcommands.py b/mercurial/hgweb/webcommands.py
--- a/mercurial/hgweb/webcommands.py
+++ b/mercurial/hgweb/webcommands.py
@@ -255,6 +255,9 @@
def changeset(web, req, tmpl):
ctx = webutil.changectx(web.repo, req)
+ basectx = webutil.changectx(web.repo, req, 'base')
+ if basectx is None:
+ basectx = ctx.p1()
showtags = webutil.showtag(web.repo, tmpl, 'changesettag', ctx.node())
showbookmarks = webutil.showbookmark(web.repo, tmpl, 'changesetbookmark',
ctx.node())
@@ -273,10 +276,10 @@
style = req.form['style'][0]
parity = paritygen(web.stripecount)
- diffs = webutil.diffs(web.repo, tmpl, ctx, None, parity, style)
+ diffs = webutil.diffs(web.repo, tmpl, ctx, basectx, None, parity, style)
parity = paritygen(web.stripecount)
- diffstatgen = webutil.diffstatgen(ctx)
+ diffstatgen = webutil.diffstatgen(ctx, basectx)
diffstat = webutil.diffstat(tmpl, ctx, diffstatgen, parity)
return tmpl('changeset',
@@ -285,6 +288,8 @@
node=ctx.hex(),
parent=webutil.parents(ctx),
child=webutil.children(ctx),
+ baseline=webutil.parents(ctx),
+ currentbaseline=basectx.hex(),
changesettag=showtags,
changesetbookmark=showbookmarks,
changesetbranch=showbranch,
@@ -566,7 +571,7 @@
if 'style' in req.form:
style = req.form['style'][0]
- diffs = webutil.diffs(web.repo, tmpl, ctx, [path], parity, style)
+ diffs = webutil.diffs(web.repo, tmpl, ctx, None, [path], parity, style)
rename = fctx and webutil.renamelink(fctx) or []
ctx = fctx and fctx or ctx
return tmpl("filediff",
diff --git a/mercurial/hgweb/webutil.py b/mercurial/hgweb/webutil.py
--- a/mercurial/hgweb/webutil.py
+++ b/mercurial/hgweb/webutil.py
@@ -140,10 +140,13 @@
path = path.lstrip('/')
return scmutil.canonpath(repo.root, '', path)
-def changectx(repo, req):
+def changectx(repo, req, nodename='node'):
changeid = "tip"
- if 'node' in req.form:
- changeid = req.form['node'][0]
+
+ if nodename in req.form:
+ changeid = req.form[nodename][0]
+ elif nodename == 'base':
+ return None
elif 'manifest' in req.form:
changeid = req.form['manifest'][0]
@@ -178,7 +181,7 @@
if len(files) > max:
yield tmpl('fileellipses')
-def diffs(repo, tmpl, ctx, files, parity, style):
+def diffs(repo, tmpl, ctx, basectx, files, parity, style):
def countgen():
start = 1
@@ -209,8 +212,11 @@
m = match.always(repo.root, repo.getcwd())
diffopts = patch.diffopts(repo.ui, untrusted=True)
- parents = ctx.parents()
- node1 = parents and parents[0].node() or nullid
+ if basectx is None:
+ parents = ctx.parents()
+ node1 = parents and parents[0].node() or nullid
+ else:
+ node1 = basectx.node()
node2 = ctx.node()
block = []
@@ -274,10 +280,10 @@
for oc in s.get_grouped_opcodes(n=context):
yield tmpl('comparisonblock', lines=getblock(oc))
-def diffstatgen(ctx):
+def diffstatgen(ctx, basectx):
'''Generator function that provides the diffstat data.'''
- stats = patch.diffstatdata(util.iterlines(ctx.diff()))
+ stats = patch.diffstatdata(util.iterlines(ctx.diff(basectx)))
maxname, maxtotal, addtotal, removetotal, binary = patch.diffstatsum(stats)
while True:
yield stats, maxname, maxtotal, addtotal, removetotal, binary
diff --git a/mercurial/templater.py b/mercurial/templater.py
--- a/mercurial/templater.py
+++ b/mercurial/templater.py
@@ -179,6 +179,7 @@
for i in d:
if isinstance(i, dict):
lm.update(i)
+ lm['originalnode'] = mapping.get('node')
yield runtemplate(context, lm, ctmpl)
else:
# v is not an iterable of dicts, this happen when 'key'
diff --git a/mercurial/templates/paper/changeset.tmpl b/mercurial/templates/paper/changeset.tmpl
--- a/mercurial/templates/paper/changeset.tmpl
+++ b/mercurial/templates/paper/changeset.tmpl
@@ -74,6 +74,14 @@
</div>
</td>
</tr>
+<tr>
+ <th class="author">change baseline</th>
+ <td class="author">{baseline%changesetbaseline}</td>
+</tr>
+<tr>
+ <th class="author">current baseline</th>
+ <td class="author"><a href="{url}rev/{currentbaseline|short}{sessionvars%urlparameter}">{currentbaseline|short}</a> </td>
+</tr>
</table>
<div class="overflow">
diff --git a/mercurial/templates/paper/map b/mercurial/templates/paper/map
--- a/mercurial/templates/paper/map
+++ b/mercurial/templates/paper/map
@@ -101,6 +101,8 @@
changesetparent = '<a href="{url}rev/{node|short}{sessionvars%urlparameter}">{node|short}</a> '
+changesetbaseline = '<a href="{url}rev/{originalnode|short}?base={node|short}{sessionvars%urlparameter}">{node|short} </a> '
+
filerevparent = '<a href="{url}file/{node|short}/{file|urlescape}{sessionvars%urlparameter}">{rename%filerename}{node|short}</a> '
filerevchild = '<a href="{url}file/{node|short}/{file|urlescape}{sessionvars%urlparameter}">{node|short}</a> '
diff --git a/tests/test-hgweb-commands.t b/tests/test-hgweb-commands.t
--- a/tests/test-hgweb-commands.t
+++ b/tests/test-hgweb-commands.t
@@ -441,6 +441,14 @@
</div>
</td>
</tr>
+ <tr>
+ <th class="author">change baseline</th>
+ <td class="author"></td>
+ </tr>
+ <tr>
+ <th class="author">current baseline</th>
+ <td class="author"><a href="/rev/000000000000">000000000000</a> </td>
+ </tr>
</table>
<div class="overflow">
diff --git a/tests/test-hgweb-diffs.t b/tests/test-hgweb-diffs.t
--- a/tests/test-hgweb-diffs.t
+++ b/tests/test-hgweb-diffs.t
@@ -139,6 +139,14 @@
</div>
</td>
</tr>
+ <tr>
+ <th class="author">change baseline</th>
+ <td class="author"></td>
+ </tr>
+ <tr>
+ <th class="author">current baseline</th>
+ <td class="author"><a href="/rev/000000000000">000000000000</a> </td>
+ </tr>
</table>
<div class="overflow">
@@ -400,6 +408,14 @@
</div>
</td>
</tr>
+ <tr>
+ <th class="author">change baseline</th>
+ <td class="author"></td>
+ </tr>
+ <tr>
+ <th class="author">current baseline</th>
+ <td class="author"><a href="/rev/000000000000">000000000000</a> </td>
+ </tr>
</table>
<div class="overflow">
diff --git a/tests/test-hgweb-removed.t b/tests/test-hgweb-removed.t
--- a/tests/test-hgweb-removed.t
+++ b/tests/test-hgweb-removed.t
@@ -112,6 +112,14 @@
</div>
</td>
</tr>
+ <tr>
+ <th class="author">change baseline</th>
+ <td class="author"><a href="/rev/c78f6c5cbea9?base=cb9a9f314b8b">cb9a9f314b8b </a> </td>
+ </tr>
+ <tr>
+ <th class="author">current baseline</th>
+ <td class="author"><a href="/rev/cb9a9f314b8b">cb9a9f314b8b</a> </td>
+ </tr>
</table>
<div class="overflow">
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