[PATCH 1/3] t5000: extract nongit function to test-lib-functions.sh

[Jeff King]

This function abstracts the idea of running a command
outside of any repository (which is slightly awkward to do
because even if you make a non-repo directory, git may keep
walking up outside of the trash directory). There are
several scripts that use the same technique, so let's make
the function available for everyone.

Signed-off-by: Jeff King <p...@peff.net>
---
I waffled on the name. Something like test_outside_repo() is more
descriptive, but as this is prepended to existing commands, the lines
already end up quite long.

 t/t5000-tar-tree.sh     | 14 --------------
 t/test-lib-functions.sh | 14 ++++++++++++++
 2 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/t/t5000-tar-tree.sh b/t/t5000-tar-tree.sh
index 830bf2a2f6..886b6953e4 100755
--- a/t/t5000-tar-tree.sh
+++ b/t/t5000-tar-tree.sh
@@ -94,20 +94,6 @@ check_tar() {
        '
 }
 
-# run "$@" inside a non-git directory
-nongit () {
-       test -d non-repo ||
-       mkdir non-repo ||
-       return 1
-
-       (
-               GIT_CEILING_DIRECTORIES=$(pwd) &&
-               export GIT_CEILING_DIRECTORIES &&
-               cd non-repo &&
-               "$@"
-       )
-}
-
 test_expect_success \
     'populate workdir' \
     'mkdir a &&
diff --git a/t/test-lib-functions.sh b/t/test-lib-functions.sh
index fdaeb3a96b..adab7f51f4 100644
--- a/t/test-lib-functions.sh
+++ b/t/test-lib-functions.sh
@@ -994,3 +994,17 @@ test_copy_bytes () {
                }
        ' - "$1"
 }
+
+# run "$@" inside a non-git directory
+nongit () {
+       test -d non-repo ||
+       mkdir non-repo ||
+       return 1
+
+       (
+               GIT_CEILING_DIRECTORIES=$(pwd) &&
+               export GIT_CEILING_DIRECTORIES &&
+               cd non-repo &&
+               "$@"
+       )
+}
-- 
2.11.0.348.g960a0b554