Do not try to get revision and branch information for file which are not tracked

contrib/vim/hgcommand.vim

@@ -315,6 +315,7 b' endfunction'
 
 function! s:HGGetStatusVars(revisionVar, branchVar, repositoryVar)
   let hgBufferCheck=s:HGCurrentBufferCheck()
+  "echomsg "DBG : in HGGetStatusVars"
   if hgBufferCheck == -1 
     return ""
   endif
@@ -326,15 +327,19 b' function! s:HGGetStatusVars(revisionVar,'
     let hgCommand = s:HGGetOption("HGCommandHGExec", "hg") . " root  " 
     let roottext=system(hgCommand)
     " Suppress ending null char ! Does it work in window ?
-    let roottext=substitute(roottext, '.$', '', "")
+    let roottext=substitute(roottext,'^.*/\([^/\n\r]*\)\n\_.*$','\1','')
     if match(getcwd()."/".fileNameWithoutLink, roottext) == -1
       return ""
     endif
+    let returnExpression = ""
     let hgCommand = s:HGGetOption("HGCommandHGExec", "hg") . " status -mardui " . fileName
     let statustext=system(hgCommand)
     if(v:shell_error)
       return ""
     endif
+    if a:repositoryVar != ""
+      let returnExpression=returnExpression . " | let " . a:repositoryVar . "='" . roottext . "'"
+    endif
     if match(statustext, '^[?I]') >= 0 
       let revision="NEW"
     elseif match(statustext, '^[R]') >= 0 
@@ -343,32 +348,23 b' function! s:HGGetStatusVars(revisionVar,'
       let revision="DELETED"
     elseif match(statustext, '^[A]') >= 0 
       let revision="ADDED"
-    endif
+    else
+      " The file is tracked, we can try to get is revision number
+      let hgCommand = s:HGGetOption("HGCommandHGExec", "hg") . " parents -b  " 
+      let statustext=system(hgCommand)
+      if(v:shell_error)
+	  return ""
+      endif
+      let revision=substitute(statustext, '^changeset:\s*\(\d\+\):.*\_$\_.*$', '\1', "")
 
-    let hgCommand = s:HGGetOption("HGCommandHGExec", "hg") . " parents -b  " 
-    let statustext=system(hgCommand)
-    if(v:shell_error)
-        return ""
-    endif
-    if exists('revision')
-      let returnExpression = "let " . a:revisionVar . "='" . revision . "'"
-    else
-      let revision=substitute(statustext, '^changeset:\s*\(\d\+\):.*\_$\_.*$', '\1', "")
-      let returnExpression = "let " . a:revisionVar . "='" . revision . "'"
+      if a:branchVar != "" && match(statustext, '^\_.*\_^branch:') >= 0
+	let branch=substitute(statustext, '^\_.*\_^branch:\s*\(\S\+\)\n\_.*$', '\1', "")
+	let returnExpression=returnExpression . " | let " . a:branchVar . "='" . branch . "'"
+      endif
     endif
-
-    if a:branchVar != "" && match(statustext, '^\_.*\_^branch:') >= 0
-      let branch=substitute(statustext, '^\_.*\_^branch:\s*\(\S\+\)\n\_.*$', '\1', "")
-      let returnExpression=returnExpression . " | let " . a:branchVar . "='" . branch . "'"
+    if (exists('revision'))
+      let returnExpression = "let " . a:revisionVar . "='" . revision . "' " . returnExpression
     endif
-    if a:repositoryVar != ""
-      let hgCommand = s:HGGetOption("HGCommandHGExec", "hg") . " root  " 
-      let roottext=system(hgCommand)
-      let repository=substitute(roottext,'^.*/\([^/\n\r]*\)\n\_.*$','\1','')
-      let returnExpression=returnExpression . " | let " . a:repositoryVar . "='" . repository . "'"
-    endif
-
-
 
     return returnExpression
   finally
@@ -436,6 +432,11 b' function! s:HGMarkOrigBufferForSetup(hgB'
     if origBuffer != a:hgBuffer
       call setbufvar(origBuffer, "HGBufferSetup", 0)
     endif
+  else
+    "We are presumably in the original buffer
+    let b:HGBufferSetup = 0
+    "We do the setup now as now event will be triggered allowing it later.
+    call s:HGSetupBuffer()
   endif
   return a:hgBuffer
 endfunction
@@ -612,6 +613,7 b' function! HGEnableBufferSetup()'
   augroup HGCommandPlugin
     au!
     au BufEnter * call s:HGSetupBuffer()
+    au BufWritePost * call s:HGSetupBuffer()
     " Force resetting up buffer on external file change (HG update)
     au FileChangedShell * call s:HGSetupBuffer(1)
   augroup END
@@ -758,8 +760,7 b' function! s:HGCommit(...)'
           \ ':call <SID>HGFinishCommit("' . messageFileName . '",' .
           \                             '"' . newCwd . '",' .
           \                             '"' . realFileName . '",' .
-          \                             hgBufferCheck . ')<CR>'.
-          \ ':call <SID>HGBufferSetup(1)<CR>'
+          \                             hgBufferCheck . ')<CR>'
 
     silent 0put ='HG: ----------------------------------------------------------------------'
     silent put =\"HG: Enter Log.  Lines beginning with `HG:' are removed automatically\"
@@ -912,7 +913,6 b' endfunction'
 " Function: s:HGUpdate() {{{2
 function! s:HGUpdate()
   return s:HGMarkOrigBufferForSetup(s:HGDoCommand('update', 'update', ''))
-  call s:HGSetupBuffer(1)
 endfunction
 
 " Function: s:HGVimDiff(...) {{{2