test suite: tar up the artifacts, and name the tarball after the test

Naming the output after the test works around #903696.

tarring the whole lot up turns out to make it a lot smaller.
Before:
    $ du -sk ; du -sk --apparent-size
    1640    .
    853     .
After:
    236     .
    235     .

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

1 files changed, 2 insertions, 14 deletions

diff --git a/tests/lib b/tests/lib
index 4425bf6..40f1f09 100644
--- a/tests/lib
+++ b/tests/lib
@@ -420,20 +420,8 @@ t-save-artifacts () {
 	if [ x"$artifacts" = x ]; then return; fi
 	if [ x"tmp" = x ]; then return; fi
 	: '(((((((((( t-save-artifacts ))))))))))'
-	cp -dR --preserve=links,timestamps "$tmp"/. "$artifacts"/.
-	chmod -R a+r -- "$artifacts"/.
-	cd "$artifacts"/.
-	find . \( -name \*.tar -o -name \*.sample \) -print0 | \
-		xargs -0r rm -v
-	find . \( -name .git \
-		-o -path ./salsa/\* \
-		-o -path ./git/\*.git \
-		\) -type d \
-		\! -path '*/.git/*/.git' -exec sh -xec '
-			cd "$1"
-			"$2"/playtree-save-refs
-			git gc --prune=all
-		' x '{}' "$troot" \;
+	GZIP=-1v tar -C "$tmp" -zc -f "$artifacts/${0##*/}.tar.gz" \
+		--exclude=\*.tar .
 	: ')))))))))) t-save-artifacts ))))))))))'
 }