largefiles: get function to write status messages via "getstatuswriter()"

This patch makes "updatelfiles()" get appropriate function to write
largefiles specific status messages via "getstatuswriter()".

This patch introduces None as "print messages if needed", because True
(forcibly writing) and False (forcibly ignoring) are already used for
"printmessage" of "updatelfiles".

Subsequent patch will move "avoid printing messages only while
automated committing" decision from caller of "updatelfiles()" into
"getstatuswriter()".

hgext/largefiles/lfcommands.py

@@ -435,8 +435,14 b' def downloadlfiles(ui, repo, rev=None):'
         ui.status(_("%d largefiles failed to download\n") % totalmissing)
     return totalsuccess, totalmissing
 
-def updatelfiles(ui, repo, filelist=None, printmessage=True,
+def updatelfiles(ui, repo, filelist=None, printmessage=None,
                  normallookup=False):
+    '''Update largefiles according to standins in the working directory
+
+    If ``printmessage`` is other than ``None``, it means "print (or
+    ignore, for false) message forcibly".
+    '''
+    statuswriter = lfutil.getstatuswriter(ui, repo, printmessage)
     wlock = repo.wlock()
     try:
         lfdirstate = lfutil.openlfdirstate(ui, repo)
@@ -482,8 +488,7 b' def updatelfiles(ui, repo, filelist=None'
         lfdirstate.write()
 
         if lfiles:
-            if printmessage:
-                ui.status(_('getting changed largefiles\n'))
+            statuswriter(_('getting changed largefiles\n'))
             cachelfiles(ui, repo, None, lfiles)
 
         for lfile in lfiles:
@@ -527,8 +532,8 b' def updatelfiles(ui, repo, filelist=None'
                     lfutil.synclfdirstate(repo, lfdirstate, lfile, True)
 
         lfdirstate.write()
-        if printmessage and lfiles:
-            ui.status(_('%d largefiles updated, %d removed\n') % (updated,
+        if lfiles:
+            statuswriter(_('%d largefiles updated, %d removed\n') % (updated,
                 removed))
     finally:
         wlock.release()

hgext/largefiles/overrides.py

@@ -1279,9 +1279,11 b' def mergeupdate(orig, repo, node, branch'
             newstandins = lfutil.getstandinsstate(repo)
             filelist = lfutil.getlfilestoupdate(oldstandins, newstandins)
 
-        # suppress status message while automated committing
-        printmessage = not (getattr(repo, "_isrebasing", False) or
-                            getattr(repo, "_istransplanting", False))
+        printmessage = None
+        if (getattr(repo, "_isrebasing", False) or
+            getattr(repo, "_istransplanting", False)):
+            # suppress status message while automated committing
+            printmessage = False
         lfcommands.updatelfiles(repo.ui, repo, filelist=filelist,
                                 printmessage=printmessage,
                                 normallookup=partial)