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authorEd Santiago <santiago@redhat.com>2020-04-01 14:14:00 -0600
committerEd Santiago <santiago@redhat.com>2020-04-01 14:14:00 -0600
commit108ab380f10066516e8fb4c82f0f02fdf480b003 (patch)
tree3c8d44a46ab7ab822f905282f2060d2ff2b394b1 /hack/podmanv2-retry
parent0a163720351710be314c729086e8d288680ff0a8 (diff)
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podmanv2-retry - new helper for testing v2
./hack/podmanv2-retry will first invoke $PODMAN_V2 with given arguments. If that fails with any of the following errors: unrecognized command unknown flag unknown shorthand ...it will run $PODMAN_FALLBACK with the same arguments. Output and exit code will be those of the final podman command, although be aware that stderr and stdout are combined. This is a quick-hack script intended for use in v2 testing, to test implemented commands without noise from unimplemented ones. Signed-off-by: Ed Santiago <santiago@redhat.com>
Diffstat (limited to 'hack/podmanv2-retry')
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1 files changed, 37 insertions, 0 deletions
diff --git a/hack/podmanv2-retry b/hack/podmanv2-retry
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+#!/bin/bash
+#
+# podman-try - try running a command via PODMAN1; use PODMAN2 as fallback
+#
+# Intended for use with a podmanv2 client. If a command isn't yet
+# implemented, fall back to regular podman:
+#
+# Set PODMAN_V2 to the path to a podman v2 client
+# Set PODMAN_FALLBACK to the path to regular podman
+#
+# THIS IS IMPERFECT. In particular, it will not work if stdin is redirected
+# (e.g. 'podman ... < file' or 'something | podman'); nor for anything
+# that generates continuous output ('podman logs -f'); and probably more
+# situations.
+#
+
+die() {
+ echo "$(basename $0): $*" >&2
+ exit 1
+}
+
+test -n "$PODMAN_V2" || die "Please set \$PODMAN_V2 (path to podman v2)"
+test -n "$PODMAN_FALLBACK" || die "Please set \$PODMAN_FALLBACK (path to podman)"
+
+
+result=$(${PODMAN_V2} "$@" 2>&1)
+rc=$?
+
+if [ $rc == 125 ]; then
+ if [[ "$result" =~ unrecognized\ command|unknown\ flag|unknown\ shorthand ]]; then
+ result=$(${PODMAN_FALLBACK} "$@")
+ rc=$?
+ fi
+fi
+
+echo -n "$result"
+exit $rc