libutil: return a program handle from runProgram2

this will let us also return a source for the program output later,
which will in turn make sinkToSource unnecessary for program output
processing. this may also reopen a path for provigin program input,
but that still needs a proper async io framework to avoid problems.

Change-Id: Iaf93f47db99c38cfaf134bd60ed6a804d7ddf688

1 files changed, 1 insertions, 1 deletions

diff --git a/src/libfetchers/git.cc b/src/libfetchers/git.cc
index 10e125207..75ac926e2 100644
--- a/src/libfetchers/git.cc
+++ b/src/libfetchers/git.cc
@@ -695,7 +695,7 @@ struct GitInputScheme : InputScheme
                     .program = "git",
                     .args = { "-C", repoDir, "--git-dir", gitDir, "archive", input.getRev()->gitRev() },
                     .standardOut = &sink
-                });
+                }).wait();
             });
 
             unpackTarfile(*source, tmpDir);