Merge pull request #1313 from pi-hole/new/piholecheckout

Checkout adjustments

advanced/Scripts/piholeCheckout.sh

@@ -9,12 +9,17 @@
 # Please see LICENSE file for your rights under this license.
 
 readonly PI_HOLE_FILES_DIR="/etc/.pihole"
-PH_TEST="true" source ${PI_HOLE_FILES_DIR}/automated\ install/basic-install.sh
+PH_TEST="true" source "${PI_HOLE_FILES_DIR}/automated install/basic-install.sh"
 
 # webInterfaceGitUrl set in basic-install.sh
 # webInterfaceDir set in basic-install.sh
 # piholeGitURL set in basic-install.sh
 # is_repo() sourced from basic-install.sh
+# setupVars set in basic-install.sh
+
+source "${setupVars}"
+
+update="false"
 
 fully_fetch_repo() {
   # Add upstream branches to shallow clone
@@ -33,28 +38,44 @@ fully_fetch_repo() {
 get_available_branches(){
   # Return available branches
   local directory="${1}"
-  local curdir
 
-  curdir="${PWD}"
   cd "${directory}" || return 1
   # Get reachable remote branches
   git remote show origin | grep 'tracked' | sed 's/tracked//;s/ //g'
-  cd "${curdir}" || return 1
   return
 }
 
+
+fetch_checkout_pull_branch() {
+  # Check out specified branch
+  local directory="${1}"
+  local branch="${2}"
+
+  # Set the reference for the requested branch, fetch, check it put and pull it
+  cd "${directory}"
+  git remote set-branches origin "${branch}" || return 1
+  git fetch --quiet || return 1
+  checkout_pull_branch "${directory}" "${branch}" || return 1
+}
+
 checkout_pull_branch() {
   # Check out specified branch
   local directory="${1}"
   local branch="${2}"
-  local curdir
+  local oldbranch
 
-  curdir="${PWD}"
   cd "${directory}" || return 1
-  git checkout "${branch}"
-  git pull
-  cd "${curdir}" || return 1
-  return
+
+  oldbranch="$(git symbolic-ref HEAD)"
+
+  git checkout "${branch}" || return 1
+
+  if [ "$(git diff "${oldbranch}" | grep -c "^")" -gt "0" ]; then
+    update="true"
+  fi
+
+  git pull || return 1
+  return 0
 }
 
 warning1() {
@@ -82,53 +103,60 @@ checkout()
   set -f
 
   #This is unlikely
-  if ! is_repo "${PI_HOLE_FILES_DIR}" || ! is_repo "${webInterfaceDir}" ; then
-    echo "::: Critical Error: One or more Pi-Hole repos are missing from your system!"
-    echo "::: Please re-run the install script from https://github.com/pi-hole/pi-hole"
-    exit 1
+  if ! is_repo "${PI_HOLE_FILES_DIR}" ; then
+    echo "::: Critical Error: Core Pi-Hole repo is missing from system!"
+    echo "::: Please re-run install script from https://github.com/pi-hole/pi-hole"
+    exit 1;
   fi
-
-  if ! warning1 ; then
-    exit 1
+  if [[ ${INSTALL_WEB} == "true" ]]; then
+    if ! is_repo "${webInterfaceDir}" ; then
+      echo "::: Critical Error: Web Admin repo is missing from system!"
+      echo "::: Please re-run install script from https://github.com/pi-hole/pi-hole"
+      exit 1;
+    fi
   fi
 
-  echo -n "::: Fetching remote branches for Pi-hole core from ${piholeGitUrl} ... "
-  if ! fully_fetch_repo "${PI_HOLE_FILES_DIR}" ; then
-    echo "::: Fetching all branches for Pi-hole core repo failed!"
+  if [[ -z "${1}" ]]; then
+    echo "::: No option detected. Please use 'pihole checkout <master|dev>'."
+    echo "::: Or enter the repository and branch you would like to check out:"
+    echo "::: 'pihole checkout <web|core> <branchname>'"
     exit 1
   fi
-  corebranches=($(get_available_branches "${PI_HOLE_FILES_DIR}"))
-  echo " done!"
-  echo "::: ${#corebranches[@]} branches available"
-  echo ":::"
-
-  echo -n "::: Fetching remote branches for the web interface from ${webInterfaceGitUrl} ... "
-  if ! fully_fetch_repo "${webInterfaceDir}" ; then
-    echo "::: Fetching all branches for Pi-hole web interface repo failed!"
+
+  if ! warning1 ; then
     exit 1
   fi
-  webbranches=($(get_available_branches "${webInterfaceDir}"))
-  echo " done!"
-  echo "::: ${#webbranches[@]} branches available"
-  echo ":::"
 
   if [[ "${1}" == "dev" ]] ; then
     # Shortcut to check out development branches
     echo "::: Shortcut \"dev\" detected - checking out development / devel branches ..."
     echo "::: Pi-hole core"
-    checkout_pull_branch "${PI_HOLE_FILES_DIR}" "development"
-    echo "::: Web interface"
-    checkout_pull_branch "${webInterfaceDir}" "devel"
+    fetch_checkout_pull_branch "${PI_HOLE_FILES_DIR}" "development" || { echo "Unable to pull Core developement branch"; exit 1; }
+    if [[ ${INSTALL_WEB} == "true" ]]; then
+      echo "::: Web interface"
+      fetch_checkout_pull_branch "${webInterfaceDir}" "devel" || { echo "Unable to pull Web development branch"; exit 1; }
+    fi
     echo "::: done!"
   elif [[ "${1}" == "master" ]] ; then
     # Shortcut to check out master branches
     echo "::: Shortcut \"master\" detected - checking out master branches ..."
     echo "::: Pi-hole core"
-    checkout_pull_branch "${PI_HOLE_FILES_DIR}" "master"
-    echo "::: Web interface"
-    checkout_pull_branch "${webInterfaceDir}" "master"
+    fetch_checkout_pull_branch "${PI_HOLE_FILES_DIR}" "master" || { echo "Unable to pull Core master branch"; exit 1; }
+    if [[ ${INSTALL_WEB} == "true" ]]; then
+      echo "::: Web interface"
+      fetch_checkout_pull_branch "${webInterfaceDir}" "master" || { echo "Unable to pull web master branch"; exit 1; }
+    fi
     echo "::: done!"
   elif [[ "${1}" == "core" ]] ; then
+    echo -n "::: Fetching remote branches for Pi-hole core from ${piholeGitUrl} ... "
+    if ! fully_fetch_repo "${PI_HOLE_FILES_DIR}" ; then
+      echo "::: Fetching all branches for Pi-hole core repo failed!"
+      exit 1
+    fi
+    corebranches=($(get_available_branches "${PI_HOLE_FILES_DIR}"))
+    echo " done!"
+    echo "::: ${#corebranches[@]} branches available"
+    echo ":::"
     # Have to user chosing the branch he wants
     if ! (for e in "${corebranches[@]}"; do [[ "$e" == "${2}" ]] && exit 0; done); then
       echo "::: Requested branch \"${2}\" is not available!"
@@ -137,7 +165,16 @@ checkout()
       exit 1
     fi
     checkout_pull_branch "${PI_HOLE_FILES_DIR}" "${2}"
-  elif [[ "${1}" == "web" ]] ; then
+  elif [[ "${1}" == "web" && "${INSTALL_WEB}" == "true" ]] ; then
+    echo -n "::: Fetching remote branches for the web interface from ${webInterfaceGitUrl} ... "
+    if ! fully_fetch_repo "${webInterfaceDir}" ; then
+      echo "::: Fetching all branches for Pi-hole web interface repo failed!"
+      exit 1
+    fi
+    webbranches=($(get_available_branches "${webInterfaceDir}"))
+    echo " done!"
+    echo "::: ${#webbranches[@]} branches available"
+    echo ":::"
     # Have to user chosing the branch he wants
     if ! (for e in "${webbranches[@]}"; do [[ "$e" == "${2}" ]] && exit 0; done); then
       echo "::: Requested branch \"${2}\" is not available!"
@@ -152,12 +189,14 @@ checkout()
   fi
 
   # Force updating everything
-  echo "::: Running installer to upgrade your installation"
-  if ${PI_HOLE_FILES_DIR}/automated\ install/basic-install.sh --unattended; then
-   exit 0
-  else
-   echo "Unable to complete update, contact Pi-hole"
-   exit 1
+  if [[ ! "${1}" == "web" && "${update}" == "true" ]]; then
+    echo "::: Running installer to upgrade your installation"
+    if "${PI_HOLE_FILES_DIR}/automated install/basic-install.sh" --unattended; then
+     exit 0
+    else
+     echo "Unable to complete update, contact Pi-hole"
+     exit 1
+    fi
   fi
 }