[hg] Log hg command _before_ executing it.

That way we can still see hg commands in the log, even if they didn't
complete because of some problem (e.g. hanging password prompt).

Split logging to logCommand & logResult.
logCommand before executing a command, log result after it.

plugins/hg4idea/src/org/zmlx/hg4idea/execution/HgCommandExecutor.java

@@ -145,6 +145,8 @@ public final class HgCommandExecutor {
       return null;
     }
 
+    logCommand(operation, arguments);
+
     final List<String> cmdLine = new LinkedList<String>();
     cmdLine.add(myVcs.getGlobalSettings().getHgExecutable());
     if (repo != null) {
@@ -214,13 +216,13 @@ public final class HgCommandExecutor {
     String warnings = warningReceiver.getWarnings();
     result.setWarnings(warnings);
 
-    log(operation, arguments, result);
+    logResult(result);
     return result;
   }
 
   // logging to the Version Control console (without extensions and configs)
   @SuppressWarnings("UseOfSystemOutOrSystemErr")
-  private void log(@NotNull String operation, @Nullable List<String> arguments, @NotNull HgCommandResult result) {
+  private void logCommand(@NotNull String operation, @Nullable List<String> arguments) {
     if (myProject.isDisposed()) {
       return;
     }
@@ -244,10 +246,15 @@ public final class HgCommandExecutor {
     else {
       LOG.debug(cmdString);
     }
+  }
+
+  @SuppressWarnings("UseOfSystemOutOrSystemErr")
+  private void logResult(@NotNull HgCommandResult result) {
+    final boolean unitTestMode = ApplicationManager.getApplication().isUnitTestMode();
 
     // log output if needed
     if (!result.getRawOutput().isEmpty()) {
-      if (isUnitTestMode) {
+      if (unitTestMode) {
         System.out.print(result.getRawOutput() + "\n");
       }
       if (!myIsSilent && myShowOutput) {
@@ -261,7 +268,7 @@ public final class HgCommandExecutor {
 
     // log error
     if (!result.getRawError().isEmpty()) {
-      if (isUnitTestMode) {
+      if (unitTestMode) {
         System.out.print(result.getRawError() + "\n");
       }
       if (!myIsSilent) {