local push/pull env cleanup

remove environment variables relating to the current repository
before execing the 'remote' half of a local push or pull operation

[jc: the original from Matt spelled out the environment variable
 names, which I changed to the preprocessor symbols defined in
 cache.h.  Also it missed GRAFT_ENVIRONMENT.]

Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/connect.c b/connect.c
index d6f4e4c..e1c04e1 100644 (file)
--- a/connect.c
+++ b/connect.c
@@ -644,10 +644,16 @@ int git_connect(int fd[2], char *url, const char *prog)
                                ssh_basename++;
                        execlp(ssh, ssh_basename, host, command, NULL);
                }
-               else
+               else {
+                       unsetenv(ALTERNATE_DB_ENVIRONMENT);
+                       unsetenv(DB_ENVIRONMENT);
+                       unsetenv(GIT_DIR_ENVIRONMENT);
+                       unsetenv(GRAFT_ENVIRONMENT);
+                       unsetenv(INDEX_ENVIRONMENT);
                        execlp("sh", "sh", "-c", command, NULL);
+               }
                die("exec failed");
-       }               
+       }
        fd[0] = pipefd[0][0];
        fd[1] = pipefd[1][1];
        close(pipefd[0][1]);