hush: rework "wait %jobspec" to work in non-interactive shells too

Also add tests. wait5.tests so far fails (but works for ash and dash).

function                                             old     new   delta
builtin_wait                                         305     283     -22

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

4 files changed, 10 insertions, 0 deletions

diff --git a/shell/ash_test/ash-misc/wait4.right b/shell/ash_test/ash-misc/wait4.right
new file mode 100644
index 000000000..f7987db32
--- /dev/null
+++ b/shell/ash_test/ash-misc/wait4.right
@@ -0,0 +1 @@
+Three:3
diff --git a/shell/ash_test/ash-misc/wait4.tests b/shell/ash_test/ash-misc/wait4.tests
new file mode 100755
index 000000000..cc34059ac
--- /dev/null
+++ b/shell/ash_test/ash-misc/wait4.tests
@@ -0,0 +1,2 @@
+sleep 1 | (sleep 1;exit 3) & wait %1
+echo Three:$?
diff --git a/shell/ash_test/ash-misc/wait5.right b/shell/ash_test/ash-misc/wait5.right
new file mode 100644
index 000000000..82c9d5696
--- /dev/null
+++ b/shell/ash_test/ash-misc/wait5.right
@@ -0,0 +1,2 @@
+Zero:0
+Three:3
diff --git a/shell/ash_test/ash-misc/wait5.tests b/shell/ash_test/ash-misc/wait5.tests
new file mode 100755
index 000000000..1b4762d89
--- /dev/null
+++ b/shell/ash_test/ash-misc/wait5.tests
@@ -0,0 +1,5 @@
+sleep 0 | (sleep 0;exit 3) &
+sleep 1
+echo Zero:$?
+wait %1
+echo Three:$?