test-lib-functions.sh: teach test_commit -C <dir>

Specifically when setting up submodule tests, it comes in handy if
we can create commits in repositories that are not at the root of
the tested trash dir. Add "-C <dir>" similar to gits -C parameter
that will perform the operation in the given directory.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/t/test-lib-functions.sh b/t/test-lib-functions.sh
index fdaeb3a96bed361f53030cb6ea5c6bdde445163f..579e812506ec7cf0ea48aeb70991592fa7616f29 100644 (file)
--- a/t/test-lib-functions.sh
+++ b/t/test-lib-functions.sh
@@ -157,16 +157,21 @@ debug () {
         GIT_TEST_GDB=1 "$@"
 }
 
-# Call test_commit with the arguments "<message> [<file> [<contents> [<tag>]]]"
+# Call test_commit with the arguments
+# [-C <directory>] <message> [<file> [<contents> [<tag>]]]"
 #
 # This will commit a file with the given contents and the given commit
 # message, and tag the resulting commit with the given tag name.
 #
 # <file>, <contents>, and <tag> all default to <message>.
+#
+# If the first argument is "-C", the second argument is used as a path for
+# the git invocations.
 
 test_commit () {
        notick= &&
        signoff= &&
+       indir= &&
        while test $# != 0
        do
                case "$1" in
@@ -176,21 +181,26 @@ test_commit () {
                --signoff)
                        signoff="$1"
                        ;;
+               -C)
+                       indir="$2"
+                       shift
+                       ;;
                *)
                        break
                        ;;
                esac
                shift
        done &&
+       indir=${indir:+"$indir"/} &&
        file=${2:-"$1.t"} &&
-       echo "${3-$1}" > "$file" &&
-       git add "$file" &&
+       echo "${3-$1}" > "$indir$file" &&
+       git ${indir:+ -C "$indir"} add "$file" &&
        if test -z "$notick"
        then
                test_tick
        fi &&
-       git commit $signoff -m "$1" &&
-       git tag "${4:-$1}"
+       git ${indir:+ -C "$indir"} commit $signoff -m "$1" &&
+       git ${indir:+ -C "$indir"} tag "${4:-$1}"
 }
 
 # Call test_merge with the arguments "<message> <commit>", where <commit>