[PATCH v2 4/5] tmp-objdir: put quarantine information in the environment

[Jeff King <peff@peff.net>]

The presence of the GIT_QUARANTINE_PATH variable lets any
called programs know that they're operating in a temporary
object directory (and where that directory is).

Signed-off-by: Jeff King <peff@peff.net>
---
 cache.h      | 1 +
 tmp-objdir.c | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/cache.h b/cache.h
index 9866e46..fcab658 100644
--- a/cache.h
+++ b/cache.h
@@ -433,6 +433,7 @@ static inline enum object_type object_type(unsigned int mode)
 #define GIT_GLOB_PATHSPECS_ENVIRONMENT "GIT_GLOB_PATHSPECS"
 #define GIT_NOGLOB_PATHSPECS_ENVIRONMENT "GIT_NOGLOB_PATHSPECS"
 #define GIT_ICASE_PATHSPECS_ENVIRONMENT "GIT_ICASE_PATHSPECS"
+#define GIT_QUARANTINE_ENVIRONMENT "GIT_QUARANTINE_PATH"
 
 /*
  * This environment variable is expected to contain a boolean indicating
diff --git a/tmp-objdir.c b/tmp-objdir.c
index 9443868..780af8e 100644
--- a/tmp-objdir.c
+++ b/tmp-objdir.c
@@ -147,6 +147,8 @@ struct tmp_objdir *tmp_objdir_create(void)
 	env_append(&t->env, ALTERNATE_DB_ENVIRONMENT,
 		   absolute_path(get_object_directory()));
 	env_replace(&t->env, DB_ENVIRONMENT, absolute_path(t->path.buf));
+	env_replace(&t->env, GIT_QUARANTINE_ENVIRONMENT,
+		    absolute_path(t->path.buf));
 
 	return t;
 }
-- 
2.10.0.618.g82cc264