prepare-src.sh

#!/bin/sh

# 脚本说明：下载应用源码并解压到指定的目录(通过`context`指定)下的`.mdcx_src`目录
# 一般只用于构建镜像流程，普通用户可以忽略。
# UPDATE 2023-12-24 17:08:03 使用新的源码仓库:https://github.com/sqzw-x/mdcx
# UPDATE 2024-05-28 21:28:01 sqzw-x/mdcx目前基本只进行daily_release构建

# 检查是否有jq命令
if ! command -v jq &> /dev/null
then
  echo "❌ 请先安装jq命令！参考：https://command-not-found.com/jq"
  exit 1
fi

while [[ $# -gt 0 ]]
do
  key="$1"
  case $key in
    --context)
      context="$2"
      shift
      shift
      ;;
    --verbose)
      verbose=1
      shift
      ;;
    --dry)
      dry=1
      shift
      ;;
    -h|--help)
      help=1
      shift
      ;;
    *)
      shift
      ;;
  esac
done

if [[ -z "$context" ]]; then
  echo "❌ context is required!"
  exit 1
fi

if [[ ! -d "$context" ]]; then
  echo "❌ Dir $context is not exist!"
  exit 1
fi

cd $context


echo "○ 将从发布仓库下载源码进行构建"


generate_app_version() {
  local published_at="$1"

  # 去除非数字字符
  published_at=$(echo "$published_at" | tr -dc '0-9')

  # 取前8位数字作为年月日，前缀为d
  echo "d${published_at:0:8}"
}

find_release_by_tag_name() {
  local repo=$1
  local target_tag_name=$2
  
  local url="https://api.github.com/repos/${repo}/releases"

  # echo "URL: $url"

  local target_release=""

  let found=false
  local page=1
  while true; do
    local response=$(curl -s "${url}?per_page=100&page=${page}")
    if [[ -z "$response" ]]; then
      break
    fi

    local releases=$(printf '%s' $response | jq -c '.[]')
    for release in $releases; do
      tag_name=$(printf '%s' $release | jq -r '.tag_name')
      if [[ "$tag_name" == "$target_tag_name" ]]; then
        found=true
        echo $release
        break
      fi
    done

    if [[ $found ]]; then
      break
    fi

    page=$((page + 1))
  done
}

# 获取指定仓库和tag_name的release，并解析得到release信息
# 返回json对象:
# {
#   "tag_name": "v1.0.0",
#   "published_at": "2022-01-01T00:00:00Z",
#   "release_version": "120220101",
#   "tar_url": "https://api.github.com/repos/sqzw-x/mdcx/tarball/daily_release",
#   "zip_url": "https://api.github.com/repos/sqzw-x/mdcx/zipball/daily_release"
# }
get_release_info() {
  local repo="$1"
  local tag_name="$2"

  # echo "⏳ 正在获取仓库 ${repo} 中 tag_name=${tag_name} 的release..."
  local release=$(find_release_by_tag_name "$repo" "$tag_name")

  if [[ -z "$release" ]]; then
    echo "❌ 找不到 tag_name=${tag_name} 的release！"
    return 1
  fi

  tag_name=$(printf '%s' $release | jq -r '.tag_name')
  if [[ -z "$tag_name" ]]; then
    echo "❌ 找不到 tag_name！"
    return 1
  fi

  published_at=$(printf '%s' $release | jq -r '.published_at')
  if [[ -z "$published_at" ]]; then
    echo "❌ 找不到 published_at！"
    return 1
  fi

  release_version=$(generate_app_version "$published_at")

  tar_url=$(printf '%s' $release | jq -r '.tarball_url')
  if [[ -z "$tar_url" ]]; then
    echo "❌ 从请求结果获取源码压缩包文件下载链接失败！"
    return 1
  fi

  zip_url=$(printf '%s' $release | jq -r '.zipball_url')
  if [[ -z "$zip_url" ]]; then
    echo "❌ 从请求结果获取源码压缩包文件下载链接失败！"
    return 1
  fi

  # 构建一个json对象
  local data="{
    \"tag_name\": \"${tag_name}\",
    \"published_at\": \"${published_at}\",
    \"release_version\": \"${release_version}\",
    \"tar_url\": \"${tar_url}\",
    \"zip_url\": \"${zip_url}\"
  }"
  echo $data
  return 0
}

REPO="sqzw-x/mdcx"
TAG_NAME="daily_release"

info=$(get_release_info "$REPO" "$TAG_NAME")
if [[ $? -ne 0 ]]; then
  echo "❌ 获取仓库 ${REPO} 中 tag_name=${TAG_NAME} 的release信息失败！"
  exit 1
else
  echo "✅ 获取仓库 ${REPO} 中 tag_name=${TAG_NAME} 的release信息成功！"
fi
echo $info | jq
# exit 0

# 发布时间
published_at=$(printf '%s' $info | jq -r ".published_at")
echo "📅 发布时间: $published_at"

# 版本号
release_version=$(printf '%s' $info | jq -r ".release_version")
echo "🔢 版本号: $release_version"

# 源码链接
file_url=$(printf '%s' $info | jq -r ".tar_url")
echo "🔗 下载链接: $file_url"


if [[ -z "$file_url" ]]; then
  echo "❌ 从请求结果获取下载链接失败！"
  exit 1
fi

if [[ -n "$dry" ]]; then
  exit 0
fi

echo "⏳ 下载文件..."

tar_path="$release_version.tar.gz"
srcDir=".mdcx_src"

if [[ -n "$verbose" ]]; then
  curl -o $tar_path $file_url -L
else
  curl -so $tar_path $file_url -L
fi

if [[ $? -ne 0 ]]; then
  echo "❌ 下载文件失败！"
  exit 1
fi

echo "✅ 下载成功"
echo "⏳ 开始解压..."

# 使用tar命令解压
rm -rf $srcDir
mkdir -p $srcDir
tar -zxvf $tar_path -C $srcDir --strip-components 1
rm -f $tar_path
echo "✅ 源码已解压到 $srcDir"

if [ -n "$GITHUB_ACTIONS" ]; then
  echo "APP_VERSION=$release_version" >> $GITHUB_OUTPUT
fi