Add tool to bury drafts for failed releases

Author: delan

README.md

@@ -1,2 +1,7 @@
 # servo-nightly-builds
 Repository to host Servo nightly builds using Github Releases.
+
+## How to bury drafts for failed releases
+```sh
+$ tools/bury-old-drafts.sh servo/servo-nightly-builds
+```

tools/bury-old-drafts.sh

@@ -0,0 +1,52 @@
+#!/usr/bin/env zsh
+# usage: tools/bury-old-drafts.sh
+# requires: zsh, gh, jq, rg
+set -euo pipefail
+missing() { >&2 echo "fatal: $1 not found"; exit 1; }
+> /dev/null command -v gh || missing gh
+> /dev/null command -v jq || missing jq
+> /dev/null command -v rg || missing rg
+
+set --
+org_repo_slug=servo/servo-nightly-builds
+now=$(date +\%s)
+result=$(mktemp)
+page=1
+while :; do
+    gh api -H "Accept: application/vnd.github+json" -H "X-GitHub-Api-Version: 2022-11-28" \
+        /repos/"$org_repo_slug"'/releases?per_page=100&page='$page > $result
+    length=$(< $result jq length)
+    if [ $length -eq 0 ]; then
+        break
+    fi
+    for draft in $(< $result jq '.[] | select(.draft) | .id'); do
+        created_at=$(< $result jq -r '.[] | select(.id == '"$draft"') | .created_at')
+        created_at=$(date +\%s --date="$created_at")
+        age=$((now - created_at))
+        # Ignore young drafts, because their release builds may still be running
+        if [ $age -lt 86400 ]; then
+            >&2 echo "Warning: ignoring release $draft, which is only $age seconds old"
+        else
+            set -- "$@" "$draft"
+        fi
+    done
+    >&2 echo "Page $page has $length releases; found $# drafts so far"
+    page=$((page+1))
+done
+for draft; do
+    # Mark as prerelease and unmark as draft
+    set -- PATCH "/repos/$org_repo_slug/releases/$draft" -F prerelease=true -F draft=false
+    echo "$@"
+    if ! gh api -H "Accept: application/vnd.github+json" -H "X-GitHub-Api-Version: 2022-11-28" \
+        --method "$@" > $result; then
+        < $result jq
+        >&2 printf 'Delete release? [y/N] '
+        read -r yn
+        if [ "$yn" = y ]; then
+            set -- DELETE "/repos/$org_repo_slug/releases/$draft"
+            echo "$@"
+            gh api -H "Accept: application/vnd.github+json" -H "X-GitHub-Api-Version: 2022-11-28" \
+                --method "$@"
+        fi
+    fi
+done