[PATCH v2 3/6] cvsimport: introduce a version-switch wrapper

[Junio C Hamano <gitster@pobox.com>]

In preparation to have both old and new cvsimport during the
transition period, rename the cvsimport script to cvsimport-2
and introduce a small wrapper that we can later change it to
allow users to run either frontend (with their corresponding
cvsps backends).

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 .gitignore                                 | 1 +
 Makefile                                   | 9 ++++++++-
 git-cvsimport.perl => git-cvsimport-2.perl | 0
 git-cvsimport.sh                           | 5 +++++
 4 files changed, 14 insertions(+), 1 deletion(-)
 rename git-cvsimport.perl => git-cvsimport-2.perl (100%)
 create mode 100755 git-cvsimport.sh

diff --git a/.gitignore b/.gitignore
index aa258a6..8cb799c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -40,6 +40,7 @@
 /git-credential-store
 /git-cvsexportcommit
 /git-cvsimport
+/git-cvsimport-2
 /git-cvsserver
 /git-daemon
 /git-diff
diff --git a/Makefile b/Makefile
index dd2a024..f3113a9 100644
--- a/Makefile
+++ b/Makefile
@@ -253,6 +253,9 @@ all::
 #
 # Define NO_PYTHON if you do not want Python scripts or libraries at all.
 #
+# Define CVSPS2_PATH if you cannot invoke cvsps (version 2.x) as "cvsps"
+# using your $PATH; if you do not have any, define CVSPS2_PATH=NoThanks.
+#
 # Define NO_TCLTK if you do not want Tcl/Tk GUI.
 #
 # The TCL_PATH variable governs the location of the Tcl interpreter
@@ -440,6 +443,7 @@ unexport CDPATH
 
 SCRIPT_SH += git-am.sh
 SCRIPT_SH += git-bisect.sh
+SCRIPT_SH += git-cvsimport.sh
 SCRIPT_SH += git-difftool--helper.sh
 SCRIPT_SH += git-filter-branch.sh
 SCRIPT_SH += git-lost-found.sh
@@ -468,12 +472,15 @@ SCRIPT_PERL += git-add--interactive.perl
 SCRIPT_PERL += git-difftool.perl
 SCRIPT_PERL += git-archimport.perl
 SCRIPT_PERL += git-cvsexportcommit.perl
-SCRIPT_PERL += git-cvsimport.perl
+ifneq ($(CVSPS2_PATH),NoThanks)
+SCRIPT_PERL += git-cvsimport-2.perl
+endif
 SCRIPT_PERL += git-cvsserver.perl
 SCRIPT_PERL += git-relink.perl
 SCRIPT_PERL += git-send-email.perl
 SCRIPT_PERL += git-svn.perl
 
+SCRIPT_PYTHON += git-p4.py
 SCRIPT_PYTHON += git-remote-testpy.py
 SCRIPT_PYTHON += git-p4.py
 
diff --git a/git-cvsimport.perl b/git-cvsimport-2.perl
similarity index 100%
rename from git-cvsimport.perl
rename to git-cvsimport-2.perl
diff --git a/git-cvsimport.sh b/git-cvsimport.sh
new file mode 100755
index 0000000..71ba11d
--- /dev/null
+++ b/git-cvsimport.sh
@@ -0,0 +1,5 @@
+#!/bin/sh
+
+GIT_CVSPS_VERSION=2
+
+exec git cvsimport-$GIT_CVSPS_VERSION "$@"
-- 
1.8.1.421.g6236851