1 files changed, 49 insertions, 0 deletions
diff --git a/pkgs/applications/audio/spotify/update.sh b/pkgs/applications/audio/spotify/update.sh
new file mode 100644
index 000000000000..114245f6d46c
--- /dev/null
+++ b/pkgs/applications/audio/spotify/update.sh
@@ -0,0 +1,49 @@
+channel="stable" # stable/candidate/edge
+nixpkgs="$(git rev-parse --show-toplevel)"
+spotify_nix="$nixpkgs/pkgs/applications/audio/spotify/default.nix"
+
+
+
+# create bash array from snap info
+snap_info=($(
+	curl -H 'X-Ubuntu-Series: 16' \
+		"https://api.snapcraft.io/api/v1/snaps/details/spotify?channel=$channel" \
+	| jq --raw-output \
+		'.revision,.download_sha512,.version,.last_updated'
+))
+
+revision="${snap_info[0]}"
+sha512="${snap_info[1]}"
+version="${snap_info[2]}"
+last_updated="${snap_info[3]}"
+
+# find the last commited version
+version_pre=$(
+	git  grep 'version\s*=' HEAD "$spotify_nix" \
+	| sed -Ene 's/.*"(.*)".*/\1/p'
+)
+
+if [[ "$version_pre" = "$version" ]]; then
+	echo "Spotify is already up ot date"
+	exit 0
+fi
+
+echo "Updating from ${version_pre} to ${version}, released on ${last_updated}"
+
+# search-andreplace revision, hash and version
+sed --regexp-extended \
+	-e 's/rev\s*=\s*"[0-9]+"\s*;/rev = "'"${revision}"'";/' \
+	-e 's/sha512\s*=\s*".{128}"\s*;/sha512 = "'"${sha512}"'";/' \
+	-e 's/version\s*=\s*".*"\s*;/version = "'"${version}"'";/' \
+	-i "$spotify_nix" 
+
+if ! nix-build -A spotify "$nixpkgs"; then
+	echo "The updated spotify failed to build."
+	exit 1
+fi
+
+git add "$spotify_nix"
+# show diff for review
+git diff HEAD
+# prepare commit message, but allow edit
+git commit --edit --message "spotify: $version_pre -> $version"