Refactor helper modules for im0

1 files changed, 52 insertions, 0 deletions

diff --git a/src/lib/archive.source.sh b/src/lib/archive.source.sh
new file mode 100644
index 0000000..127a0c5
--- /dev/null
+++ b/src/lib/archive.source.sh
@@ -0,0 +1,52 @@
+tarball() {
+    local -r tarball_name="$1"; shift
+    local -r tarball_suffix="$TARBALL_SUFFIX"
+    local base
+    local old_tarball
+    local -a tar_opts=()
+
+    # Cleanup tarballs from previous runs for the configured suffix.
+    while IFS= read -r -d '' old_tarball; do
+        if [[ "$old_tarball" == *"$tarball_suffix" ]]; then
+            rm -f "$old_tarball"
+        fi
+    done < <(find "$DIST_DIR" -maxdepth 1 -type f -print0)
+
+    base=$(basename "$INCOMING_DIR")
+    resolve_tar_opts tar_opts
+
+    log_info "Creating tarball $(_display_path "$DIST_DIR/$tarball_name")" \
+        "from $INCOMING_DIR"
+    (
+        cd "$(dirname "$INCOMING_DIR")"
+        run_with_timeout tar "$TAR_TIMEOUT" \
+            tar "${tar_opts[@]}" -f "$DIST_DIR/$tarball_name" "$base"
+    )
+}
+
+resolve_tar_opts() {
+    local -n options_ref="$1"; shift
+    local tar_opts_decl
+
+    options_ref=()
+
+    if ! tar_opts_decl=$(declare -p TAR_OPTS 2>/dev/null); then
+        options_ref=(-c)
+        return
+    fi
+
+    case "$tar_opts_decl" in
+        declare\ -a*\ TAR_OPTS=*)
+            options_ref=("${TAR_OPTS[@]}")
+            ;;
+        *)
+            if [ -n "${TAR_OPTS:-}" ]; then
+                read -r -a options_ref <<< "$TAR_OPTS"
+            fi
+            ;;
+    esac
+
+    if (( ${#options_ref[@]} == 0 )); then
+        options_ref=(-c)
+    fi
+}