update.sh

#!/bin/bash
dp0="$(realpath "$(dirname "$0")")"
dp0_tools="$dp0/.tools" && source "$dp0_tools/env_tools.sh"
set -e
cd "$dp0"

self_name=AutoinstallCreator
relative_version_filepath="_$self_name/version.txt"
package_ext=".sh" && $is_windows_os && package_ext=".sh.bat"
package_grep_ext="\.sh" && $is_windows_os && package_grep_ext="\.sh\.bat"

disable_sleep="$MOCK_AUTOINSTALLCREATOR_DISABLE_SLEEP"

# Finishing update process. Stage 2
target_path=$1
if [[ ! -z "$target_path" ]]; then
  target_path=$(realpath "$target_path")

  echo "Finishing update from: $dp0"
  echo "Target path: $target_path"

  if [[ $target_path == $dp0 ]]; then
    echo "Update failed. Cannot update to current directory"
    exit 1
  fi

  if [[ ! -f "$target_path/$relative_version_filepath" ]]; then
    echo "Update failed. Version not found: '$target_path/$relative_version_filepath'"
    exit 1
  fi

  echo "Copying new files"
  find "$dp0" -mindepth 1 -maxdepth 1 ! -name "tmp_*" \
    -exec cp -rf "{}" "$target_path/" \;

  echo "Removing orphaned files"
  orphaned_files=$(cat $dp0/_$self_name/orphaned_files.txt)
  for orphaned_file in $orphaned_files; do
    rm -f "$target_path/$orphaned_file"
  done

  echo "Removing empty directories"
  find "$target_path" -type d -mindepth 1 -maxdepth 1 -exec rmdir -p --ignore-fail-on-non-empty "{}" \;

  echo "Update complete: $(cat $target_path/_$self_name/version.txt)"
  exit 0
fi

# Starting update process. Stage 1
self_version_body=$(head -n 1 "$dp0/_$self_name/version.txt")
echo "self_version_body: $self_version_body"
if [[ -z "$self_version_body" ]]; then
  echo "Cannot get 'self_version_body'"
  exit 1
fi

self_version_count=$(echo "$self_version_body" | "$grep" --only-matching "(?<=$self_name\.)[^\s]+.(?=\.)" | head -n 1)
if [[ -z "$self_version_count" ]]; then
  echo "Cannot get 'self_version_count' from $self_version_body"
  exit 1
fi

self_version_hash=$(echo "$self_version_body" | "$grep" --only-matching "(?<=$self_name\.$self_version_count\.)[^\s]+." | head -n 1)
if [[ -z "$self_version_hash" ]]; then
  echo "Cannot get 'self_version_hash' from $self_version_body"
  exit 1
fi

latest_version="https://api.github.com/repos/hemnstill/$self_name/releases/tags/latest-master"
echo "Get latest version: '$latest_version' ..."
version_body="$MOCK_AUTOINSTALLCREATOR_VERSION_BODY"
if [[ -z "$version_body" ]]; then
  version_body=$($curl --silent --location "$latest_version" | "$grep" --only-matching '(?<="body":\s")[^,]+.' | cut -d '\r\n' -f 1 | head -n 1)
fi
echo "Version_body: $version_body"
if [[ -z "$version_body" ]]; then
  echo "Cannot get 'version_body'"
  exit 1
fi
version_count=$(echo "$version_body" | "$grep" --only-matching "(?<=$self_name\.)[^\s]+.(?=\.)" | head -n 1)
if [[ -z "$version_count" ]]; then
  echo "Cannot get 'version_count' from $version_body"
  exit 1
fi
version_hash=$(echo "$version_body" | "$grep" --only-matching "(?<=$self_name\.$version_count\.)[^\s]+." | head -n 1)
if [[ -z "$version_hash" ]]; then
  echo "Cannot get 'version_hash' from $version_body"
  exit 1
fi

if [[ $self_version_count -eq $version_count ]] && [[ $self_version_hash == $version_hash ]]; then
  echo "Version is up to date: $version_body" >$dp0/_update.log 2>&1
  echo "Version is up to date: $version_body"
  if [[ -z "$disable_sleep" ]]; then
    sleep 10
  fi
  exit 0
fi

found_msg_prefix="Found new version"
if [[ $self_version_count -gt $version_count ]]; then
  found_msg_prefix="Downgrade version"
  echo "Warning. Downgrade to old version!"
  if [[ -z "$disable_sleep" ]]; then
    sleep 10
  fi
fi

echo "$found_msg_prefix: $self_version_body -> $version_body"
grep_pattern="(?<=\"browser_download_url\":\s\")[^,]+.$package_grep_ext(?=\")"
download_url=$($curl --silent --location "$latest_version" | "$grep" --only-matching $grep_pattern | head -n 1)
if [[ -z "$download_url" ]]; then
  echo "Cannot get release version"
  exit 1
fi

echo "Removing old '$dp0/_$self_name/tmp_*' versions"
find "$dp0/_$self_name" -maxdepth 1 -type d -name "tmp_*" -exec rm -rf "{}" \;

echo "Downloading: $download_url ..."
package_filepath="$MOCK_AUTOINSTALLCREATOR_PACKAGE_FILEPATH"
if [[ -z "$package_filepath" ]]; then
  package_filepath="$dp0/_$self_name/$self_name$package_ext"
  $curl --location "$download_url" --output "$package_filepath"
fi

echo "Extracting to: $dp0/_$self_name/$version_body"
$MOCK_AUTOINSTALLCREATOR_XTERM "$package_filepath" --target "$dp0/_$self_name/tmp_$version_body" >$dp0/_update.log 2>&1

echo "Running extracted 'update.sh'"
"$dp0/_$self_name/tmp_$version_body/update.sh" "$dp0" >>$dp0/_update.log 2>&1

echo "Update complete: '$dp0/_update.log'"
if [[ -z "$disable_sleep" ]]; then
  sleep 10
fi