compound-engineering-plugin-mirror/skills/ce-resolve-pr-feedback/scripts/get-pr-comments

#!/usr/bin/env bash

set -e

if [ $# -lt 1 ]; then
    echo "Usage: get-pr-comments PR_NUMBER [OWNER/REPO]"
    echo "Example: get-pr-comments 123"
    echo "Example: get-pr-comments 123 EveryInc/cora"
    exit 1
fi

PR_NUMBER=$1

if [ -n "$2" ]; then
    OWNER=$(echo "$2" | cut -d/ -f1)
    REPO=$(echo "$2" | cut -d/ -f2)
else
    # `|| true` is load-bearing: under `set -e`, a failed command substitution
    # in an assignment aborts the script immediately. Run outside a git repo,
    # `gh repo view` exits 1, its stderr is swallowed by `2>/dev/null`, and the
    # script would die here with rc=1 and no output -- making the friendly error
    # below unreachable. Keep `|| true` so detection failure falls through to it.
    OWNER=$(gh repo view --json owner -q .owner.login 2>/dev/null || true)
    REPO=$(gh repo view --json name -q .name 2>/dev/null || true)
fi

if [ -z "$OWNER" ] || [ -z "$REPO" ]; then
    echo "Error: could not resolve owner/repo. Run get-pr-comments from inside the target git repository, or pass OWNER/REPO as the second argument (e.g., get-pr-comments $PR_NUMBER EveryInc/cora)." >&2
    exit 1
fi

# Output is a JSON object with these keys:
#   pending_review   - node ID of the viewer's own unsubmitted (PENDING) review
#                      on this PR, or null. Replies posted while one exists get
#                      silently absorbed into that draft and stay invisible
#                      until it is submitted, so the modes must stop before the
#                      reply loop when this is non-null. Costs no extra request:
#                      the reviews query below already selects `state`, and a
#                      PENDING review is only visible to its own author.
#   review_threads   - unresolved inline review threads, edge-wrapped with the
#                      root numeric REST comment ID used for direct replies:
#                      [{ root_comment_id, node: { id, isResolved, ... } }]
#   pr_comments      - non-empty top-level PR conversation comments
#   review_bodies    - non-empty review submission bodies
#   pr_author        - the PR author's login, or null
#   viewer           - the acting account's login, or null
#
# Pagination (issue #798): each top-level connection -- reviewThreads,
# comments, reviews -- is fetched in its own paginated query because
# `gh api graphql --paginate` only follows the outermost pageInfo per
# response. Combining them into one query (as this script previously did)
# silently dropped everything past page 1 on long-lived PRs and made the
# skill report "0 of 0 resolved" while real findings sat unanswered.
# Per-thread inline `comments` are fetched up to 100 per thread without
# follow-up pagination; threads that exceed 100 comments are rare and out of
# scope for this fix.
#
# Content, identity, and surface are evidence for the resolver, not deterministic
# exclusions. CI/status bots can carry actionable setup or posting failures, and
# automation identities can transport human-authored reviews -- and an author
# posting on their own PR is the ordinary way a human asks an agent-opened PR
# for a change (#1435 eval: every run silently dropped "please rename check_id"
# because this fetch excluded it before the skill could judge it). So the only
# exclusion here is a blank body; `pr_author` and `viewer` are reported so the
# resolver can weigh identity as evidence, including recognizing its own prior
# replies as already-handled.

tmp_threads=$(mktemp "${TMPDIR:-/tmp}/ce-pr-threads.XXXXXX")
tmp_comments=$(mktemp "${TMPDIR:-/tmp}/ce-pr-comments.XXXXXX")
tmp_reviews=$(mktemp "${TMPDIR:-/tmp}/ce-pr-reviews.XXXXXX")
trap 'rm -f "$tmp_threads" "$tmp_comments" "$tmp_reviews"' EXIT

gh api graphql --paginate --slurp \
  -f owner="$OWNER" -f repo="$REPO" -F pr="$PR_NUMBER" \
  -f query='
query Threads($owner: String!, $repo: String!, $pr: Int!, $endCursor: String) {
  repository(owner: $owner, name: $repo) {
    pullRequest(number: $pr) {
      author { login }
      reviewThreads(first: 100, after: $endCursor) {
        nodes {
          id
          isResolved
          isOutdated
          path
          line
          originalLine
          startLine
          originalStartLine
          comments(first: 100) {
            nodes {
              id
              author { login }
              body
              createdAt
              url
            }
          }
        }
        pageInfo { hasNextPage endCursor }
      }
    }
  }
}' > "$tmp_threads"

gh api graphql --paginate --slurp \
  -f owner="$OWNER" -f repo="$REPO" -F pr="$PR_NUMBER" \
  -f query='
query Comments($owner: String!, $repo: String!, $pr: Int!, $endCursor: String) {
  repository(owner: $owner, name: $repo) {
    pullRequest(number: $pr) {
      comments(first: 100, after: $endCursor) {
        nodes {
          id
          author { login }
          body
        }
        pageInfo { hasNextPage endCursor }
      }
    }
  }
}' > "$tmp_comments"

gh api graphql --paginate --slurp \
  -f owner="$OWNER" -f repo="$REPO" -F pr="$PR_NUMBER" \
  -f query='
query Reviews($owner: String!, $repo: String!, $pr: Int!, $endCursor: String) {
  viewer { login }
  repository(owner: $owner, name: $repo) {
    pullRequest(number: $pr) {
      reviews(first: 100, after: $endCursor) {
        nodes {
          id
          author { login }
          body
          state
        }
        pageInfo { hasNextPage endCursor }
      }
    }
  }
}' > "$tmp_reviews"

# Resolution semantics: `isOutdated` means the diff hunk around the comment
# has shifted since the thread was opened -- not that the reviewer concern
# was addressed. Resolution state is the only authoritative signal; outdated
# threads are still surfaced (with their isOutdated flag intact) so the
# resolver can factor in that the referenced line may have moved.
jq -n \
  --slurpfile threads "$tmp_threads" \
  --slurpfile comments "$tmp_comments" \
  --slurpfile reviews "$tmp_reviews" '
  ($threads[0][0].data.repository.pullRequest.author) as $author |
  [$threads[0][].data.repository.pullRequest.reviewThreads.nodes[]] as $all_threads |
  [$comments[0][].data.repository.pullRequest.comments.nodes[]] as $all_comments |
  [$reviews[0][].data.repository.pullRequest.reviews.nodes[]] as $all_reviews |
  [$all_threads[] | select(.isResolved == false)] as $unresolved |
  ($reviews[0][0].data.viewer.login) as $viewer |
  {
    pending_review: (first($all_reviews[]
      | select(.state == "PENDING")
      | select(($viewer == null) or (.author.login == $viewer))
      | .id) // null),
    review_threads: [$unresolved[] | {
      node: .,
      root_comment_id: (.comments.nodes[0].url
        | capture("discussion_r(?<id>[0-9]+)").id
        | tonumber)
    }],
    pr_comments: [$all_comments[]
      | select((.body // "") | test("^\\s*$") | not)],
    review_bodies: [$all_reviews[]
      | select((.body // "") | test("^\\s*$") | not)],
    pr_author: ($author.login // null),
    viewer: ($viewer // null)
  }'