VCS: Introduce Base class for VCS plugins, use in git.

Fixes:
- Cannot diff a file that does not belong to a project
- Cannot commit when a temporary diff/log view is open
  due to the current file pointing to a temporary directory
- git's project-related actions not passing the correct
  relative path.

Implementation:
- Centralize code to listen for Qt Creator's relevant state changes
  in VCSBasePlugin, dispatching the changes to the instances affected.
  (avoiding multiple invocations of searches/QFileInfo on current).
- Do the same for the corelistener catching closing SubmitEditors.
- Introduce VCSBasePluginState representing the relevant state
  (current file/project).
- Call git with working directory set and relative arguments
- Remove setEnabled/isEnabled() logic of IVersionControl
- Pass toplevel from VCSManager to avoid duplicate searches.

1 files changed, 0 insertions, 13 deletions

diff --git a/src/plugins/git/gitversioncontrol.cpp b/src/plugins/git/gitversioncontrol.cpp
index c64a683bea0..e9e8ec96026 100644
--- a/src/plugins/git/gitversioncontrol.cpp
+++ b/src/plugins/git/gitversioncontrol.cpp
@@ -44,19 +44,6 @@ QString GitVersionControl::name() const
     return QLatin1String("git");
 }
 
-bool GitVersionControl::isEnabled() const
-{
-    return m_enabled;
-}
-
-void GitVersionControl::setEnabled(bool enabled)
-{
-    if (m_enabled != enabled) {
-        m_enabled = enabled;
-        emit enabledChanged(m_enabled);
-    }
-}
-
 bool GitVersionControl::supportsOperation(Operation operation) const
 {
     bool rc = false;