[PATCH 1 of 3] largefiles: teach log to handle patterns

[Matt Harbison]

# HG changeset patch
# User Matt Harbison <matt_harbison at yahoo.com>
# Date 1425184958 18000
#      Sat Feb 28 23:42:38 2015 -0500
# Node ID a3c200d0caa9bbada74452db54bed0580ec83447
# Parent  6bccd250e9fe61e665f20ed7b449ff06f5f4e3d3
largefiles: teach log to handle patterns

Adding the standin to the patterns list was (possibly) harmless before, but was
wrong, because the pattern list was already updated above that code.  Now that
patterns are handled, it was actually harmful.  For example, in this test:

    $ hg log -G glob:**another*

the adjusted pattern list would have been:

    ['glob:**another*', '.hglf/.', 'glob:.hglf/**another*']

which causes every largefile in the root to be matched.


I'm not sure why 'glob:a*' picks up the rename of a -> b commit in test-log.t,
but a simple 'a' doesn't.  But it doesn't appear to be caused by the largefiles
extension.

diff --git a/hgext/largefiles/overrides.py b/hgext/largefiles/overrides.py
--- a/hgext/largefiles/overrides.py
+++ b/hgext/largefiles/overrides.py
@@ -304,17 +304,31 @@
             return matchandpats
 
         pats = set(p)
-        # TODO: handling of patterns in both cases below
+
+        def fixpats(pat, tostandin=lfutil.standin):
+            kindpat = match_._patsplit(pat, None)
+
+            if kindpat[0] is not None:
+                return kindpat[0] + ':' + tostandin(kindpat[1])
+            return tostandin(kindpat[1])
+
         if m._cwd:
             if os.path.isabs(m._cwd):
                 # TODO: handle largefile magic when invoked from other cwd
                 return matchandpats
             back = (m._cwd.count('/') + 1) * '../'
-            pats.update(back + lfutil.standin(m._cwd + '/' + f) for f in p)
+
+            def tostandin(f):
+                return back + lfutil.standin(m._cwd + '/' + f)
+
+            pats.update(fixpats(f, tostandin) for f in p)
         else:
-            pats.update(lfutil.standin(f) for f in p)
+            pats.update(fixpats(f) for f in p)
 
         for i in range(0, len(m._files)):
+            # Don't add '.hglf' to m.files, since that is already covered by '.'
+            if m._files[i] == '.':
+                continue
             standin = lfutil.standin(m._files[i])
             # If the "standin" is a directory, append instead of replace to
             # support naming a directory on the command line with only
@@ -325,7 +339,6 @@
             elif m._files[i] not in repo[ctx.node()] \
                     and repo.wvfs.isdir(standin):
                 m._files.append(standin)
-            pats.add(standin)
 
         m._fmap = set(m._files)
         m._always = False
diff --git a/tests/test-largefiles-misc.t b/tests/test-largefiles-misc.t
--- a/tests/test-largefiles-misc.t
+++ b/tests/test-largefiles-misc.t
@@ -458,6 +458,22 @@
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     anotherlarge
   |
+
+  $ hg log glob:another*
+  changeset:   1:9627a577c5e9
+  tag:         tip
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     anotherlarge
+  
+  $ hg log -G glob:another*
+  @  changeset:   1:9627a577c5e9
+  |  tag:         tip
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:00 1970 +0000
+  |  summary:     anotherlarge
+  |
+
   $ echo more >> anotherlarge
   $ hg st .
   M anotherlarge
@@ -468,6 +484,22 @@
   ? sub/anotherlarge.orig
   $ cd ..
 
+Test glob logging from the root dir
+  $ hg log glob:**another*
+  changeset:   1:9627a577c5e9
+  tag:         tip
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     anotherlarge
+  
+  $ hg log -G glob:**another*
+  @  changeset:   1:9627a577c5e9
+  |  tag:         tip
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:00 1970 +0000
+  |  summary:     anotherlarge
+  |
+
   $ cd ..
 
 Check error message while exchange
diff --git a/tests/test-log.t b/tests/test-log.t
--- a/tests/test-log.t
+++ b/tests/test-log.t
@@ -58,6 +58,28 @@
   date:        Thu Jan 01 00:00:01 1970 +0000
   summary:     a
   
+  $ hg log glob:a*
+  changeset:   3:2ca5ba701980
+  user:        test
+  date:        Thu Jan 01 00:00:04 1970 +0000
+  summary:     d
+  
+  changeset:   0:9161b9aeaf16
+  user:        test
+  date:        Thu Jan 01 00:00:01 1970 +0000
+  summary:     a
+  
+  $ hg log glob:a* --config extensions.largefiles=
+  changeset:   3:2ca5ba701980
+  user:        test
+  date:        Thu Jan 01 00:00:04 1970 +0000
+  summary:     d
+  
+  changeset:   0:9161b9aeaf16
+  user:        test
+  date:        Thu Jan 01 00:00:01 1970 +0000
+  summary:     a
+  
 log on directory
 
   $ hg log dir