support tests.pkgs download

tests/tests.pkgs/task.yaml

@@ -47,6 +47,16 @@ execute: |
     not tests.pkgs is-installed test-snapd-pkg-1
     not tests.pkgs is-installed test-snapd-pkg-2
 
+    # Download curl package, trusty does not support apt download
+    if not os.query is-trusty; then
+        tests.pkgs download curl
+        if os.query is-opensuse; then
+            find . -maxdepth 4 -name curl.*
+        else
+            find . -maxdepth 1 -name curl.*
+        fi
+    fi
+
     # Check the message when a command is not supported
     tests.pkgs noexist test-snapd-pkg-1 2>&1 | MATCH 'tests.pkgs: unknown command noexist'
     tests.pkgs -install test-snapd-pkg-1 2>&1 | MATCH 'tests.pkgs: unknown option -install'

tools/tests.pkgs

@@ -3,6 +3,7 @@
 show_help() {
     echo "usage: tests.pkgs install [--no-install-recommends] [PACKAGE...]"
     echo "       tests.pkgs remove [PACKAGE...]"
+    echo "       tests.pkgs download [PACKAGE...]"
     echo "       tests.pkgs is-installed [PACKAGE]"
     echo "       tests.pkgs query [PACKAGE]"
     echo "       tests.pkgs list-installed"
@@ -27,6 +28,11 @@ cmd_install_local() {
     unsupported
 }
 
+cmd_download() {
+    # This is re-defined by the backend file.
+    unsupported
+}
+
 cmd_is_installed() {
     # This is re-defined by the backend file.
     unsupported
@@ -120,7 +126,7 @@ main() {
                 shift
                 break
                 ;;
-            install|remove|query|is-installed|list-installed)
+            install|remove|query|is-installed|list-installed|download)
                 action="$1"
                 shift
                 break  # consume remaining arguments
@@ -154,6 +160,9 @@ main() {
             # shellcheck disable=SC2046
             cmd_remove $(remap_many "$@")
             ;;
+        download)
+            cmd_download "$(remap_many "$@")"
+            ;;
         *)
             echo "tests.pkgs: unknown action $action" >&2
             exit 1

tools/tests.pkgs.apt.sh

@@ -79,3 +79,7 @@ cmd_remove() {
     # shellcheck disable=SC2086
     apt-get remove --yes $REMOVE_FLAGS "$@"
 }
+
+cmd_download() {
+    apt download $@ >/dev/null 2>&1
+}

tools/tests.pkgs.dnf-yum.sh

@@ -73,3 +73,12 @@ cmd_remove() {
         yum remove -y $@
     fi
 }
+
+cmd_download() {
+    # shellcheck disable=SC2068
+    if [ "$(command -v dnf)" != "" ]; then
+        dnf download $@ >/dev/null 2>&1
+    else
+        yum reinstall --downloadonly $@ >/dev/null 2>&1
+    fi
+}

tools/tests.pkgs.pacman.sh

@@ -69,3 +69,7 @@ cmd_remove() {
     # shellcheck disable=SC2068
     pacman -Rnsc --noconfirm $@
 }
+
+cmd_download() {
+    pacman -Sw --noconfirm --cachedir "${PWD:-.}" $@ >/dev/null 2>&1
+}

tools/tests.pkgs.zypper.sh

@@ -64,3 +64,7 @@ cmd_remove() {
     # shellcheck disable=SC2068
     zypper remove -y $@
 }
+
+cmd_download() {
+    zypper --pkg-cache-dir "${PWD:-.}" download $@ >/dev/null 2>&1
+}