Build assertions when swapping

When we are swapping packages, we do not run the solver to gather things
to install, but we trust the given list when calling computeInstall. In this case, the assertion
returned by computeInstall is empty, as we force l.Options.NoDeps.

This change generates the assertion list while calling computeSwap so
it's available later when we call ExecuteFinalizer.

pkg/installer/installer.go

@@ -255,7 +255,11 @@ func (l *LuetInstaller) computeSwap(syncedRepos Repositories, toRemove pkg.Packa
 		}
 	}
 
-	return l.computeInstall(syncedRepos, toInstall, systemAfterChanges)
+	match, packages, assertions, allRepos, err := l.computeInstall(syncedRepos, toInstall, systemAfterChanges)
+	for _, p := range toInstall {
+		assertions = append(assertions, solver.PackageAssert{Package: p.(*pkg.DefaultPackage), Value: true})
+	}
+	return match, packages, assertions, allRepos, err
 }
 
 func (l *LuetInstaller) swap(syncedRepos Repositories, toRemove pkg.Packages, toInstall pkg.Packages, s *System, forceNodeps bool) error {

tests/fixtures/finalizers_upgrade/alpine old/build.yaml

@@ -0,0 +1,6 @@
+image: "alpine"
+unpack: true
+excludes:
+  - /sys/.*
+  - /proc/.*
+  - /etc/.*

tests/fixtures/finalizers_upgrade/alpine old/definition.yaml

@@ -0,0 +1,3 @@
+category: "seed"
+name: "alpine"
+version: "0.9"

tests/fixtures/finalizers_upgrade/alpine/build.yaml

@@ -0,0 +1,6 @@
+image: "alpine"
+unpack: true
+excludes:
+  - /sys/.*
+  - /proc/.*
+  - /etc/.*

tests/fixtures/finalizers_upgrade/alpine/definition.yaml

@@ -0,0 +1,3 @@
+category: "seed"
+name: "alpine"
+version: "1.0"

tests/fixtures/finalizers_upgrade/alpine/finalize.yaml

@@ -0,0 +1,2 @@
+install:
+- echo "$0" > /tmp/foo

tests/integration/07_finalizer_upgrade.sh

@@ -0,0 +1,86 @@
+#!/bin/bash
+
+export LUET_NOLOCK=true
+
+oneTimeSetUp() {
+export tmpdir="$(mktemp -d)"
+}
+
+oneTimeTearDown() {
+    rm -rf "$tmpdir"
+}
+
+testBuild() {
+    mkdir $tmpdir/testbuild
+    luet build --tree "$ROOT_DIR/tests/fixtures/finalizers_upgrade" --destination $tmpdir/testbuild --compression gzip --all
+    buildst=$?
+    assertEquals 'builds successfully' "$buildst" "0"
+    assertTrue 'create package' "[ -e '$tmpdir/testbuild/alpine-seed-1.0.package.tar.gz' ]"
+    assertTrue 'create package' "[ -e '$tmpdir/testbuild/alpine-seed-0.9.package.tar.gz' ]"
+}
+
+testRepo() {
+    assertTrue 'no repository' "[ ! -e '$tmpdir/testbuild/repository.yaml' ]"
+    luet create-repo --tree "$ROOT_DIR/tests/fixtures/finalizers_upgrade" \
+    --output $tmpdir/testbuild \
+    --packages $tmpdir/testbuild \
+    --name "test" \
+    --descr "Test Repo" \
+    --urls $tmpdir/testrootfs \
+    --type disk > /dev/null
+
+    createst=$?
+    assertEquals 'create repo successfully' "$createst" "0"
+    assertTrue 'create repository' "[ -e '$tmpdir/testbuild/repository.yaml' ]"
+}
+
+testConfig() {
+    mkdir $tmpdir/testrootfs
+    cat <<EOF > $tmpdir/luet.yaml
+general:
+  debug: true
+system:
+  rootfs: $tmpdir/testrootfs
+  database_path: "/"
+  database_engine: "boltdb"
+config_from_host: true
+repositories:
+   - name: "main"
+     type: "disk"
+     enable: true
+     urls:
+       - "$tmpdir/testbuild"
+EOF
+    luet config --config $tmpdir/luet.yaml
+    res=$?
+    assertEquals 'config test successfully' "$res" "0"
+}
+
+testInstall() {
+    luet install -y --config $tmpdir/luet.yaml seed/alpine@0.9
+    #luet install -y --config $tmpdir/luet.yaml test/c-1.0 > /dev/null
+    installst=$?
+    assertEquals 'install test successfully' "$installst" "0"
+    assertTrue 'package installed' "[ -e '$tmpdir/testrootfs/bin/busybox' ]"
+    assertTrue 'finalizer does not run' "[ ! -e '$tmpdir/testrootfs/tmp/foo' ]"
+}
+
+
+testUpgrade() {
+    luet upgrade -y --config $tmpdir/luet.yaml 
+    installst=$?
+    assertEquals 'install test successfully' "$installst" "0"
+    assertTrue 'package installed' "[ -e '$tmpdir/testrootfs/bin/busybox' ]"
+    assertTrue 'finalizer runs' "[ -e '$tmpdir/testrootfs/tmp/foo' ]"
+    assertEquals 'finalizer printed used shell' "$(cat $tmpdir/testrootfs/tmp/foo)" 'sh'
+}
+
+testCleanup() {
+    luet cleanup --config $tmpdir/luet.yaml
+    installst=$?
+    assertEquals 'install test successfully' "$installst" "0"
+}
+
+# Load shUnit2.
+. "$ROOT_DIR/tests/integration/shunit2"/shunit2
+