update mastodon

nixos/pkgs/glitch-soc/update.sh

@@ -1,15 +1,22 @@
-#!/usr/bin/env bash
+#!/usr/bin/env nix-shell
+#! nix-shell -i bash -p bundix coreutils diffutils nix-prefetch-github gnused jq prefetch-yarn-deps
 set -e
 
-URL=https://github.com/mastodon/mastodon.git
+OWNER=mastodon
+REPO=mastodon
 
 POSITIONAL=()
 while [[ $# -gt 0 ]]; do
     key="$1"
 
     case $key in
-        --url)
-            URL="$2"
+        --owner)
+            OWNER="$2"
+            shift # past argument
+            shift # past value
+            ;;
+        --repo)
+            REPO="$2"
             shift # past argument
             shift # past value
             ;;
@@ -35,29 +42,28 @@ while [[ $# -gt 0 ]]; do
     esac
 done
 
-if [[ -z "$VERSION" || -n "$POSITIONAL" ]]; then
-    echo "Usage: update.sh [--url URL] --ver VERSION [--rev REVISION] [--patches PATCHES]"
-    echo "URL may be any path acceptable to 'git clone' and VERSION the"
-    echo "semantic version number.  If VERSION is not a revision acceptable to"
-    echo "'git checkout', you must provide one in REVISION.  If URL is not"
-    echo "provided, it defaults to https://github.com/mastodon/mastodon.git."
-    echo "PATCHES, if provided, should be one or more Nix expressions"
-    echo "separated by spaces."
+if [[ -n "$POSITIONAL" ]]; then
+    echo "Usage: update.sh [--owner OWNER] [--repo REPO] [--ver VERSION] [--rev REVISION] [--patches PATCHES]"
+    echo "OWNER and REPO must be paths on github."
+    echo "If REVISION is not provided, the latest tag from github.com/mastodon/mastodon is fetched and VERSION is calculated from it."
+    echo "If OWNER and REPO are not provided, it defaults they default to mastodon and mastodon."
+    echo "PATCHES, if provided, should be one or more Nix expressions separated by spaces."
     exit 1
 fi
 
 if [[ -z "$REVISION" ]]; then
-    REVISION="$VERSION"
+    REVISION="$(curl ${GITHUB_TOKEN:+" -u \":$GITHUB_TOKEN\""} -s "https://api.github.com/repos/$OWNER/$REPO/releases" | jq -r  'map(select(.prerelease == false)) | .[0].tag_name')"
 fi
 
-rm -f gemset.nix version.nix source.nix
-TARGET_DIR="$PWD"
+VERSION="$(echo "$REVISION" | cut -c2-)"
 
+rm -f gemset.nix source.nix
+cd "$(dirname "${BASH_SOURCE[0]}")" || exit 1
 
 WORK_DIR=$(mktemp -d)
 
 # Check that working directory was created.
-if [[ ! "$WORK_DIR" || ! -d "$WORK_DIR" ]]; then
+if [[ -z "$WORK_DIR" || ! -d "$WORK_DIR" ]]; then
     echo "Could not create temporary directory"
     exit 1
 fi
@@ -70,29 +76,37 @@ function cleanup {
 }
 trap cleanup EXIT
 
-echo "Fetching source code $REVISION from $URL"
-JSON=$(nix-prefetch-git --url "$URL" --rev "$REVISION"  2> $WORK_DIR/nix-prefetch-git.out)
-SHA=$(echo $JSON | jq -r .sha256)
-FETCHED_SOURCE_DIR=$(grep '^path is' $WORK_DIR/nix-prefetch-git.out | sed 's/^path is //')
-
-echo "Creating version.nix"
-echo \"$VERSION\" | sed 's/^"v/"/' > version.nix
+echo "Fetching source code $REVISION"
+JSON=$(nix-prefetch-github "$OWNER" "$REPO" --rev "$REVISION" 2> $WORK_DIR/nix-prefetch-git.out)
+HASH=$(echo "$JSON" | jq -r .hash)
 
 cat > source.nix << EOF
 # This file was generated by pkgs.mastodon.updateScript.
-{ fetchgit, applyPatches }: let
-  src = fetchgit {
-    url = "$URL";
-    rev = "$REVISION";
-    sha256 = "$SHA";
-  };
-in applyPatches {
-  inherit src;
-  patches = [$PATCHES];
+{ fetchFromGitHub, applyPatches, patches ? [] }:
+let
+  version = "$VERSION";
+in
+(
+  applyPatches {
+    src = fetchFromGitHub {
+      owner = "$OWNER";
+      repo = "$REPO";
+      rev = "v\${version}";
+      hash = "$HASH";
+    };
+    patches = patches ++ [$PATCHES];
+  }) // {
+  inherit version;
+  yarnHash = "sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=";
 }
 EOF
 SOURCE_DIR="$(nix-build --no-out-link -E '(import <nixpkgs> {}).callPackage ./source.nix {}')"
 
 echo "Creating gemset.nix"
 bundix --lockfile="$SOURCE_DIR/Gemfile.lock" --gemfile="$SOURCE_DIR/Gemfile"
-echo "" >> $TARGET_DIR/gemset.nix  # Create trailing newline to please EditorConfig checks
+echo "" >> gemset.nix  # Create trailing newline to please EditorConfig checks
+
+echo "Creating yarn-hash.nix"
+YARN_HASH="$(prefetch-yarn-deps "$SOURCE_DIR/yarn.lock")"
+YARN_HASH="$(nix hash to-sri --type sha256 "$YARN_HASH")"
+sed -i "s/sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=/$YARN_HASH/g" source.nix