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-rw-r--r--test/system/070-build.bats48
1 files changed, 48 insertions, 0 deletions
diff --git a/test/system/070-build.bats b/test/system/070-build.bats
index a9d2ed1b7..7c39da72c 100644
--- a/test/system/070-build.bats
+++ b/test/system/070-build.bats
@@ -32,6 +32,54 @@ EOF
run_podman rmi -f build_test
}
+# Regression from v1.5.0. This test passes fine in v1.5.0, fails in 1.6
+@test "podman build - cache (#3920)" {
+ if is_remote && is_rootless; then
+ skip "unreliable with podman-remote and rootless; #2972"
+ fi
+
+ # Make an empty test directory, with a subdirectory used for tar
+ tmpdir=$PODMAN_TMPDIR/build-test
+ run mkdir -p $tmpdir/subtest || die "Could not mkdir $tmpdir/subtest"
+
+ echo "This is the ORIGINAL file" > $tmpdir/subtest/myfile1
+ run tar -C $tmpdir -cJf $tmpdir/myfile.tar.xz subtest
+
+ cat >$tmpdir/Dockerfile <<EOF
+FROM $IMAGE
+ADD myfile.tar.xz /
+EOF
+
+ # One of: ADD myfile /myfile or COPY . .
+ run_podman build -t build_test -f $tmpdir/Dockerfile $tmpdir
+ is "$output" ".*STEP 3: COMMIT" "COMMIT seen in log"
+ if [[ "$output" =~ "Using cache" ]]; then
+ is "$output" "[no instance of 'Using cache']" "no cache used"
+ fi
+ iid=${lines[-1]}
+
+ run_podman run --rm build_test cat /subtest/myfile1
+ is "$output" "This is the ORIGINAL file" "file contents, first time"
+
+ # Step 2: Recreate the tarfile, with new content. Rerun podman build.
+ echo "This is a NEW file" >| $tmpdir/subtest/myfile2
+ run tar -C $tmpdir -cJf $tmpdir/myfile.tar.xz subtest
+
+ run_podman build -t build_test -f $tmpdir/Dockerfile $tmpdir
+ is "$output" ".*STEP 3: COMMIT" "COMMIT seen in log"
+
+ # Since the tarfile is modified, podman SHOULD NOT use a cached layer.
+ if [[ "$output" =~ "Using cache" ]]; then
+ is "$output" "[no instance of 'Using cache']" "no cache used"
+ fi
+
+ # Pre-buildah-1906, this fails with ENOENT because the tarfile was cached
+ run_podman run --rm build_test cat /subtest/myfile2
+ is "$output" "This is a NEW file" "file contents, second time"
+
+ run_podman rmi -f build_test $iid
+}
+
function teardown() {
# A timeout or other error in 'build' can leave behind stale images
# that podman can't even see and which will cascade into subsequent