abuild: Implement a checkretry option

This allows a test suite to be retried automatically in case of flaky or
unreliable tests upstream.  The default retry count is 5, but can be set
in abuild.conf with the variable `$ABUILD_RETRY_COUNT`.

Closes: #15

2 files changed, 21 insertions, 0 deletions

diff --git a/APKBUILD.5 b/APKBUILD.5
index af22a59..9baf772 100644
--- a/APKBUILD.5
+++ b/APKBUILD.5
@@ -298,6 +298,14 @@ Do not use this option.
 .It Cm !check
 Specifies that the package will not run a test suite.
 The reason for disabling the check phase should be noted in a comment.
+.It Cm checkretry
+Specifies that the package's test suite should be re-run multiple times in
+case of failure.  The reason should be noted in a comment.  Note that this
+option and
+.Cm checkroot
+cannot be used in the same package;
+.Cm checkretry
+will take precedence.
 .It Cm checkroot
 Specifies that the package's test suite will be run in
 .Xr fakeroot 8 .
diff --git a/abuild.in b/abuild.in
index 13e9824..932efb2 100644
--- a/abuild.in
+++ b/abuild.in
@@ -1557,6 +1557,9 @@ build_abuildrepo() {
 	if options_has "checkx11"; then
 		_check=check_x11
 	fi
+	if options_has "checkretry"; then
+		_check=check_retry
+	fi
 	if ! want_check; then
 		_check=true
 	fi
@@ -1853,6 +1856,16 @@ check_x11() {
 	env DISPLAY=:7 dbus-run-session "$abuild_path" $forceroot $color_opt $keep_build check
 }
 
+# wrap check() with retries
+check_retry() {
+	count=${ABUILD_RETRY_COUNT:=5}
+	(cd "$startdir";
+	while test $((count=$(($count-1)))) -ge 0; do
+		msg "Trying check..."
+		check && exit 0;
+	done; exit 1)
+}
+
 # build and package in fakeroot
 rootpkg() {
 	cd "$startdir"