Merge branch 'jk/reflog-walk' into maint

diff --git a/setup.c b/setup.c
index 358fbc2e5301d9412b55463065b912b5708c3ceb..860507e1fdb2d61da71b27eb00d8413f2fabcfa9 100644 (file)
--- a/setup.c
+++ b/setup.c
@@ -1,4 +1,5 @@
 #include "cache.h"
+#include "repository.h"
 #include "config.h"
 #include "dir.h"
 #include "string-list.h"
@@ -398,6 +399,11 @@ void setup_work_tree(void)
        if (getenv(GIT_WORK_TREE_ENVIRONMENT))
                setenv(GIT_WORK_TREE_ENVIRONMENT, ".", 1);
 
+       /*
+        * NEEDSWORK: this call can essentially be set_git_dir(get_git_dir())
+        * which can cause some problems when trying to free the old value of
+        * gitdir.
+        */
        set_git_dir(remove_leading_path(git_dir, work_tree));
        initialized = 1;
 }
@@ -1079,6 +1085,12 @@ const char *setup_git_directory_gently(int *nongit_ok)
                die("BUG: unhandled setup_git_directory_1() result");
        }
 
+       /*
+        * NEEDSWORK: This was a hack in order to get ls-files and grep to have
+        * properly formated output when recursing submodules.  Once ls-files
+        * and grep have been changed to perform this recursing in-process this
+        * needs to be removed.
+        */
        env_prefix = getenv(GIT_TOPLEVEL_PREFIX_ENVIRONMENT);
        if (env_prefix)
                prefix = env_prefix;
@@ -1091,6 +1103,27 @@ const char *setup_git_directory_gently(int *nongit_ok)
        startup_info->have_repository = !nongit_ok || !*nongit_ok;
        startup_info->prefix = prefix;
 
+       /*
+        * Not all paths through the setup code will call 'set_git_dir()' (which
+        * directly sets up the environment) so in order to guarantee that the
+        * environment is in a consistent state after setup, explicitly setup
+        * the environment if we have a repository.
+        *
+        * NEEDSWORK: currently we allow bogus GIT_DIR values to be set in some
+        * code paths so we also need to explicitly setup the environment if
+        * the user has set GIT_DIR.  It may be beneficial to disallow bogus
+        * GIT_DIR values at some point in the future.
+        */
+       if (startup_info->have_repository || getenv(GIT_DIR_ENVIRONMENT)) {
+               if (!the_repository->gitdir) {
+                       const char *gitdir = getenv(GIT_DIR_ENVIRONMENT);
+                       if (!gitdir)
+                               gitdir = DEFAULT_GIT_DIR_ENVIRONMENT;
+                       repo_set_gitdir(the_repository, gitdir);
+                       setup_git_env();
+               }
+       }
+
        strbuf_release(&dir);
        strbuf_release(&gitdir);