#!/bin/bash
set -e

#
# Builds the rustdocs for all of the libraries.
#

# Brings in: PROJECT_ROOT, EXAMPLES_DIR, LIB_DIR, CODEGEN_DIR, CONTRIB_DIR, DOC_DIR
SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
source "${SCRIPT_DIR}/config.sh"

if [ "${1}" != "-d" ]; then
  # We need to clean-up beforehand so we don't get all of the dependencies.
  echo ":::: Cleaning up before documenting..."
  cargo clean
  cargo update
fi

# Generate the rustdocs for all of the crates.
echo ":::: Generating docs (${DOC_VERSION})..."
pushd "${PROJECT_ROOT}" > /dev/null 2>&1
  # Set the crate version and fill in missing doc URLs with docs.rs links.
  RUSTDOCFLAGS="-Z unstable-options \
      --extern-html-root-url rocket=https://api.rocket.rs/${GIT_BRANCH}/rocket/ \
      --crate-version ${DOC_VERSION} \
      --enable-index-page \
      --generate-link-to-definition" \
      cargo doc -Zrustdoc-map --no-deps --all-features \
        -p rocket \
        -p rocket_db_pools \
        -p rocket_sync_db_pools \
        -p rocket_dyn_templates \
        -p rocket_ws
popd > /dev/null 2>&1

REDIRECTS="
/               /v0.5/rocket/                                302!
/rocket/        /v0.5/rocket/                                302!
/:v             /:v/rocket/
/:v/*           https://:v--rocket-docs.netlify.app/:splat   200
"
# Generating redirection list: from    to.
if [ "${GIT_BRANCH}" = "master" ]; then
  echo ":::: Generating redirects..."
  echo "${REDIRECTS}" | tee "${DOC_DIR}/_redirects"
else
  echo ":: Skipping redirects for branch '${GIT_BRANCH}'"
fi