First repotools release.

16 files changed, 667 insertions, 0 deletions

diff --git a/.SRCINFO b/.SRCINFO
new file mode 100644
index 000000000000..60af7ef78f2a
--- /dev/null
+++ b/.SRCINFO
@@ -0,0 +1,42 @@
+pkgbase = repotools
+	pkgdesc = Utility for creating and maintaining custom user repositories.
+	pkgver = 0.1
+	pkgrel = 1
+	url = https://github.com/cezarmathe/repotools
+	arch = x86_64
+	license = MIT
+	depends = git
+	depends = aurutils
+	backup = etc/repotools.conf
+	source = repotools
+	source = repotools.conf
+	source = add_remove_packages.sh
+	source = build_environment.sh
+	source = build_packages.sh
+	source = cycle.sh
+	source = help_usage.sh
+	source = new_meta_package.sh
+	source = new_repository.sh
+	source = pacman_entries.sh
+	source = sync_repositories.sh
+	source = update_repositories.sh
+	source = utils.sh
+	source = LICENSE
+	validpgpkeys = 61C1AF95BB594AD40DEEB7103F8F89E56422CBA8
+	md5sums = 7421f50cf89be766e910b9fcbb36c235
+	md5sums = deb5ca2e557abab23905145c625f06a1
+	md5sums = a0b7d63a8aa5cde42c21f11b182180b3
+	md5sums = 846d10842ef7c63a6e493104cbf4a61c
+	md5sums = 70aea403ce23dc0c83c203cf24036896
+	md5sums = eb33d6e5471a83e52af3d7df9d4d51a9
+	md5sums = 3ae35c3be45b14387650a5d68286696f
+	md5sums = e643ddd60ba72ad53e53d45eac76250d
+	md5sums = 879df82b7fe4ec27f2aa45d2c4715ac4
+	md5sums = 5e480eb9052bd62328142e26617721f7
+	md5sums = 638355180cca826d3f14d74be7cce9d0
+	md5sums = df83bedfaf82a7b89aec6535bc490093
+	md5sums = b9bbf84850ea005568429d396e449f56
+	md5sums = 1269890d8780c9cbf0aef3d1eb01bbb5
+
+pkgname = repotools
+
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 000000000000..cd9603274ae6
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2018 Cezar Mathe
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/PKGBUILD b/PKGBUILD
new file mode 100644
index 000000000000..482dfcaea8ef
--- /dev/null
+++ b/PKGBUILD
@@ -0,0 +1,65 @@
+# Maintainer: Cezar Mathe <cezarmathe@gmail.com>
+pkgname=repotools
+pkgver=0.1
+pkgrel=1
+pkgdesc="Utility for creating and maintaining custom user repositories."
+arch=(x86_64)
+url="https://github.com/cezarmathe/repotools"
+license=('MIT')
+depends=('git' 'aurutils')
+backup=('etc/repotools.conf')
+source=("repotools"
+        "repotools.conf"
+        "add_remove_packages.sh" 
+        "build_environment.sh" 
+        "build_packages.sh" 
+        "cycle.sh" 
+        "help_usage.sh" 
+        "new_meta_package.sh" 
+        "new_repository.sh" 
+        "pacman_entries.sh" 
+        "sync_repositories.sh" 
+        "update_repositories.sh" 
+        "utils.sh"
+        "LICENSE")
+md5sums=('7421f50cf89be766e910b9fcbb36c235'
+         'deb5ca2e557abab23905145c625f06a1'
+         'a0b7d63a8aa5cde42c21f11b182180b3'
+         '846d10842ef7c63a6e493104cbf4a61c'
+         '70aea403ce23dc0c83c203cf24036896'
+         'eb33d6e5471a83e52af3d7df9d4d51a9'
+         '3ae35c3be45b14387650a5d68286696f'
+         'e643ddd60ba72ad53e53d45eac76250d'
+         '879df82b7fe4ec27f2aa45d2c4715ac4'
+         '5e480eb9052bd62328142e26617721f7'
+         '638355180cca826d3f14d74be7cce9d0'
+         'df83bedfaf82a7b89aec6535bc490093'
+         'b9bbf84850ea005568429d396e449f56'
+         '1269890d8780c9cbf0aef3d1eb01bbb5')
+validpgpkeys=('61C1AF95BB594AD40DEEB7103F8F89E56422CBA8')
+
+package() {
+	
+  install -Dm755 "${srcdir}/repotools" "${pkgdir}/usr/bin/repotools"
+  
+  install -Dm644 "${srcdir}/LICENSE" "${pkgdir}/usr/share/licenses/${pkgname}/LICENSE"
+
+  script_files=("add_remove_packages.sh" 
+                "build_environment.sh" 
+                "build_packages.sh" 
+                "cycle.sh" 
+                "help_usage.sh" 
+                "new_meta_package.sh" 
+                "new_repository.sh" 
+                "pacman_entries.sh" 
+                "sync_repositories.sh" 
+                "update_repositories.sh" 
+                "utils.sh")
+
+  for script_file in ${script_files[*]}
+  do
+    install -Dm 644 "${srcdir}/${script_file}" "${pkgdir}/usr/lib/${pkgname}/${script_file}"
+  done
+
+  install -Dm644 "${srcdir}/repotools.conf" "${pkgdir}/etc/${pkgname}.conf"
+}
diff --git a/add_remove_packages.sh b/add_remove_packages.sh
new file mode 100644
index 000000000000..f23481e1e152
--- /dev/null
+++ b/add_remove_packages.sh
@@ -0,0 +1,25 @@
+# Functions for adding and removing packages from repositories
+
+# Add a package to the specified repository
+function add_package() {
+  local repository_name="$1"; shift
+  local package_name="$1"; shift
+
+  aursync --repo "${repository_name}" --root "${PATH_REPOSITORIES}/${repository_name}/pkg/" "${package_name}"
+}
+
+# Remove a package from the specified repository
+function remove_package() {
+  local repository_name="$1"; shift
+  local package_name="$1"; shift
+
+  local previous_wd="$(pwd)"
+
+  cd "${PATH_REPOSITORIES}/${repository_name}"
+
+  repo-remove "${PATH_REPOSITORIES}/${repository_name}/${LOCAL_DB_FILE}" "${package_name}"
+
+  rm "${PATH_REPOSITORIES}/${repository_name}/pkg/${package_name}-*.pkg.tar.xz"
+
+  cd "${previous_wd}"
+}
\ No newline at end of file
diff --git a/build_environment.sh b/build_environment.sh
new file mode 100644
index 000000000000..a1d26fde4bce
--- /dev/null
+++ b/build_environment.sh
@@ -0,0 +1,17 @@
+# Functions for interacting with the build environment
+
+function initialize_build_environment() {
+  local directory="$1"; shift
+
+  if [[ -z "${directory}" ]]; then
+    mkdir -p "${PATH_BUILD}"
+    mkarchroot -C /etc/pacman.conf "${PATH_BUILD}/root" base-devel
+  else
+    if [[ "${directory:0:1}" = "/" ]]; then
+      mkdir -p "${directory}"
+      mkarchroot -C /etc/pacman.conf "${directory}/root" base-devel
+    else
+      echo "Path is invalid"
+    fi
+  fi
+}
\ No newline at end of file
diff --git a/build_packages.sh b/build_packages.sh
new file mode 100644
index 000000000000..3c8fc8933d96
--- /dev/null
+++ b/build_packages.sh
@@ -0,0 +1,50 @@
+# Functions for building packages
+
+# Build a single package from a repository
+# or all packages within repository
+# Calling this function with no parameters
+# build all packages within repository
+function build_package() {
+  local repository_name="$1"; shift
+  local package_name="$1"; shift
+
+  if [[ ! -d "${PATH_REPOSITORIES}/${repository_name}/src" ]]; then
+    echo "The repository ${repository_name} does not have packages that need to be built."
+    return
+  fi
+
+  if [[ ! -z "${package_name}" ]]; then
+    # build a package from the specified repository
+    if [[ ! -d "${PATH_REPOSITORIES}/${repository_name}/src/${package_name}" ]]; then
+      echo "The repository ${repository_name} does not have a buildable package named ${package_name}."
+      return
+    else
+      local previous_wd="$(pwd)"
+
+      cd "${PATH_REPOSITORIES}/${repository_name}/src/${package_name}"
+      makechrootpkg -cur "${PATH_BUILD}"
+
+      repo-add "${PATH_REPOSITORIES}/${repository_name}/${LOCAL_DB_FILE}" *.pkg.tar.xz
+
+      cp *.pkg.tar.xz "${PATH_REPOSITORIES}/${repository_name}/pkg/"
+
+      cd "${previous_wd}"
+    fi
+  else
+    # build all packages from the specified repository
+    echo "Building all packages from ${repository_name}.."
+
+    for packagename in "${PATH_REPOSITORIES}/${repository_name}/src/*"; do
+      bash repotools -B "$(basename ${packagename}) ${repository_name}"
+    done 
+  fi
+}
+
+# Build all packages from all repositories
+function build_all_packages() {
+  echo "Building all packages from all repositories.." 
+
+  for reponame in "${PATH_REPOSITORIES}/*"; do
+      bash repotools -b "$(basename ${reponame})"
+  done 
+}
\ No newline at end of file
diff --git a/cycle.sh b/cycle.sh
new file mode 100644
index 000000000000..ebf68edc8d20
--- /dev/null
+++ b/cycle.sh
@@ -0,0 +1,15 @@
+# The cycle function
+
+function cycle() {
+
+  echo "Starting the cycle.."
+
+  bash repotools -s
+
+  bash repotools -d
+
+  bash repotools -u
+
+  bash repotools -s
+
+}
\ No newline at end of file
diff --git a/help_usage.sh b/help_usage.sh
new file mode 100644
index 000000000000..52e362747ed5
--- /dev/null
+++ b/help_usage.sh
@@ -0,0 +1,9 @@
+# Functions for printing the help and usage
+
+function print_help() {
+  echo
+}
+
+function print_usage() {
+  echo
+}
\ No newline at end of file
diff --git a/new_meta_package.sh b/new_meta_package.sh
new file mode 100644
index 000000000000..03c1e29f70b2
--- /dev/null
+++ b/new_meta_package.sh
@@ -0,0 +1 @@
+# Functions for creating meta packages
\ No newline at end of file
diff --git a/new_repository.sh b/new_repository.sh
new file mode 100644
index 000000000000..3eec06e5a8d0
--- /dev/null
+++ b/new_repository.sh
@@ -0,0 +1,64 @@
+# Functions for creating a new repository
+
+# Create a new repository
+function new_repository() {
+  local repository_name="$1"; shift
+
+  if [[ -d "${PATH_REPOSITORIES}/${repository_name}" ]]; then
+    echo "The repository already exists."
+  else
+    # create the repository directory
+    mkdir "${PATH_REPOSITORIES}/${repository_name}"
+
+    # create the pkg dir and the database
+    mkdir "${PATH_REPOSITORIES}/${repository_name}/pkg"
+    repo-add "${PATH_REPOSITORIES}/${repository_name}/pkg/${repository_name}.db.tar.xz"
+
+    # create a folder for meta packages if required
+    if [[ -z "${arg_new_repo}" ]]; then
+      mkdir "${PATH_REPOSITORIES}/${repository_name}/src"
+      echo "placeholder file" > "${PATH_REPOSITORIES}/${repository_name}/src/.placeholder"
+    fi
+
+    # create the config file
+    touch "${PATH_REPOSITORIES}/${repository_name}/.config"
+    
+    echo "# Configuration file for the repository" >> "${PATH_REPOSITORIES}/${repository_name}/.config"
+    echo
+    echo "LOCAL_REPOSITORY_NAME=\"${repository_name}\"" >> "${PATH_REPOSITORIES}/${repository_name}/.config"
+    echo "LOCAL_REMOTE_PACKAGE_DIR=\"insert url here\"" >> "${PATH_REPOSITORIES}/${repository_name}/.config"
+    echo "LOCAL_DB_FILE=\"pkg/${repository_name}.db.tar.xz\"" >> "${PATH_REPOSITORIES}/${repository_name}/.config"
+    echo "LOCAL_REMOTE_REPO_ADDRESS=\"insert url here\"" >> "${PATH_REPOSITORIES}/${repository_name}/.config"
+# EOF 
+    
+    # edit the config file
+    vim "${PATH_REPOSITORIES}/${repository_name}/.config"
+
+    # create the gitignore file
+    vim "${PATH_REPOSITORIES}/${repository_name}/.gitignore"
+
+  fi
+}
+
+# Initialize the new repository
+function new_repository_init() {
+  local repository_name="$1"; shift
+
+  bash "${PATH_REPOTOOLS}/repotools" -G "${repository_name}" > "${PATH_REPOSITORIES}/${repository_name}/pacman-entry.txt"
+
+  local previous_wd="$(pwd)"
+
+  cd "${PATH_REPOSITORIES}/${repository_name}"
+
+  git init
+  git add .
+  git add .config
+  git add .gitignore
+  git commit -m "Initial config"
+
+  git remote add origin "${LOCAL_REMOTE_REPO_ADDRESS}" 
+
+  git push --set-upstream origin master
+
+  cd "${previous_wd}"
+}
\ No newline at end of file
diff --git a/pacman_entries.sh b/pacman_entries.sh
new file mode 100644
index 000000000000..b4e84f448e4f
--- /dev/null
+++ b/pacman_entries.sh
@@ -0,0 +1,18 @@
+# Functions for generating pacman entries for repositories
+
+function generate_pacman_entry() {
+  local repository_name="$1"; shift
+
+  if [[ ! -z "${repository_name}" ]]; then
+    # generate the entry for a single package
+    echo "[${LOCAL_REPOSITORY_NAME}]"
+    echo "SigLevel = Optional TrustAll"
+    echo "Server = ${LOCAL_REMOTE_PACKAGE_DIR}/"
+    echo 
+  else
+    # generate the entry for all packages
+    for reponame in "${PATH_REPOSITORIES}/*"; do
+      bash repotools -G "$(basename ${reponame})"
+    done 
+  fi
+}
\ No newline at end of file
diff --git a/repotools b/repotools
new file mode 100755
index 000000000000..d5622450dfb9
--- /dev/null
+++ b/repotools
@@ -0,0 +1,257 @@
+#!/bin/bash
+# Author: Cezar Mathe <cezarmathe@gmail.com> https://github.com/cezarmathe/repotools
+
+# Load the configuration
+if [[ -f "${XDG_CONFIG_HOME}/repotools.conf" ]]; then
+  source "${XDG_CONFIG_HOME}/repotools.conf"  
+elif [[ -f "${HOME}/.config/repotools.conf" ]]; then
+  source "${HOME}/.config/repotools.conf"
+elif [[ -f "/etc/repotools.conf" ]]; then
+  source "/etc/repotools.conf"
+else
+  echo "No configuration file could be found."
+fi
+
+script_modules_base_path="/usr/lib/repotools"
+
+script_files=("add_remove_packages.sh" 
+              "build_environment.sh" 
+              "build_packages.sh" 
+              "cycle.sh" 
+              "help_usage.sh" 
+              "new_meta_package.sh" 
+              "new_repository.sh" 
+              "pacman_entries.sh" 
+              "sync_repositories.sh" 
+              "update_repositories.sh" 
+              "utils.sh")
+
+for item in ${script_files[*]}; do
+  if [ ! -f "${script_modules_base_path}/${item}" ]; then
+    echo "${item} file not found."
+    exit 1
+  fi
+  source "${script_modules_base_path}/${item}"
+done
+
+# ----------
+
+
+
+# Main cli
+
+function main() {
+  while getopts 'A:bB:cdgGhiI:M:nNR:sSuU' flag; do
+    case "${flag}" in
+
+      A)
+        # Add a new package: -A <package_name> <repo_name> 
+        flag_add=1
+        arg_add="${OPTARG}"
+        shift 2;;
+
+      b)
+        # Build all packages within a single repository: -b <repo_name>
+        flag_build=1
+        shift;;
+
+      B)
+        # Build a package: -B <package_name> <repo_name>
+        flag_build=1
+        arg_build="${OPTARG}"
+        shift 2;;
+
+      c)
+        # Cycle: -c
+        flag_cycle=1
+        shift;;
+
+      d)
+        # Build all packages within all repositories: -d
+        flag_build_all=1
+        shift;;
+
+      g)
+        # Generate a pacman entry for all repositories: -g
+        flag_generate_pacman_entry=1
+        shift;;
+
+      G)
+        # Generate a pacman entry for a single repository: -G <repo_name>
+        flag_Generate_pacman_entry=1
+        shift;;
+
+      h)
+        # Help&usage: -h 
+        print_help
+        exit
+        ;;
+        
+      i)
+        # Initialize the build environment in the default directory: -i
+        flag_init_build_env=1
+        shift;;
+
+      I)
+        # Initialize the build environment in a specific directory: -I <directory>
+        flag_init_build_env=1
+        arg_init_build_env="${OPTARG}"
+        shift 2;;
+
+      M)
+        # Create a new meta package: -M <package_name> <repo_name>
+        flag_new_meta_pkg=1
+        arg_new_meta_pkg="${OPTARG}"
+        shift 2;;
+
+      n)
+        # Create a new repository for meta packages: -n <repo_name>
+        flag_new_repo=1
+        shift ;;
+      N)
+        # Create a new repository for regular packages: -N <repo_name>
+        flag_new_repo=1
+        arg_new_repo=1
+        shift ;;
+      
+      R)
+        # Remove a package: -R <package_name> <repo_name>
+        flag_remove=1
+        arg_remove="${OPTARG}"
+        shift 2;;
+
+      s)
+        # Sync all repositories: -s
+        flag_sync=1
+        shift;;
+
+      S)
+        # Sync a single repository: -S <repo_name>
+        flag_Sync=1
+        shift;;
+
+      u)
+        # Update all repositories: -u
+        flag_update=1
+        shift;;
+
+      U)
+        # Update a single repository: -U <repo_name>
+        flag_Update=1
+        shift;; 
+      
+      *)
+        print_usage
+        exit 1 
+        ;;
+
+    esac
+  done
+
+  # trap remove_tmp_files EXIT
+
+  # Flags that are completely independent
+  if [[ ! -z "${flag_init_build_env}" ]]; then
+    initialize_build_environment "${arg_init_build_env}"
+  fi
+  # ----------
+
+  # The cycle flag blocks other flags
+  if [[ ! -z "${flag_cycle}" ]]; then
+    cycle
+    exit
+  fi
+  # ----------
+
+  # Flags that do not depend on a repository name
+  if [[ ! -z "${flag_sync}" ]]; then
+    # sync all repositories
+    sync_with_remote
+  fi
+
+  if [[ ! -z "${flag_update}" ]]; then
+    # update all repositories
+    update_repository
+  fi
+
+  if [[ ! -z "${flag_build_all}" ]]; then
+    # build all packages in all repositories
+    build_all_packages
+  fi
+
+  if [[ ! -z "${flag_generate_pacman_entry}" ]]; then
+    generate_pacman_entry
+  fi
+  # ----------
+
+  # Flags that depend on a repository name
+  local repository_name="$1"; shift
+
+  # checking whether a repository name was specified
+  if [[ -z "${repository_name}" ]]; then
+    echo "No repository name specified."
+    exit 1
+  fi
+
+  # the new repository command is executed before anything else that requires a valid repository
+  if [[ ! -z "${flag_new_repo}" ]]; then
+    # create a new repository
+    # ${arg_new_repo} specifies whether the created repository will be a 
+    # meta package repository or a regular package repository
+    # new_repository "${repository_name}" "${arg_new_repo}"
+    new_repository "${repository_name}"
+  fi
+
+  # checking whether the specified repository exists or not
+  if [[ ! -d "${PATH_REPOSITORIES}/${repository_name}" ]]; then
+    echo "The repository ${repository_name} does not exist."
+    exit 1
+  fi
+
+  # source the repository config before other commands so it needs to be
+  # called only once
+  source_pkg_config "${repository_name}"
+
+  # initialize git if a repository was created
+  if [[ ! -z "${flag_new_repo}" ]]; then
+    new_repository_init "${repository_name}"
+  fi
+
+  if [[ ! -z "${flag_Sync}" ]]; then
+    # sync a single repository
+    sync_with_remote "${repository_name}"
+  fi
+
+  if [[ ! -z "${flag_add}" ]]; then
+    # add a package in a repository
+    add_package "${repository_name}" "${arg_add}"
+  fi
+
+  if [[ ! -z "${flag_remove}" ]]; then
+    # remove a package in a repository
+    remove_package "${repository_name}" "${arg_remove}"
+  fi
+
+  if [[ ! -z "${flag_Update}" ]]; then
+    # update packages within a repository
+    update_repository "${repository_name}"
+  fi
+
+  if [[ ! -z "${flag_build}" ]]; then
+    # build a package/packages within a repository
+    build_package "${repository_name}" "${arg_build}"
+  fi
+
+  if [[ ! -z "${flag_new_meta_pkg}" ]]; then
+    # create a new meta package in a repository
+    # create_new_meta_package "${repository_name}" "${arg_new_meta_pkg}"
+    echo
+  fi
+
+  if [[ ! -z "${flag_Generate_pacman_entry}" ]]; then
+    generate_pacman_entry "${repository_name}"
+  fi
+  # ----------
+}
+
+main $@
\ No newline at end of file
diff --git a/repotools.conf b/repotools.conf
new file mode 100644
index 000000000000..fd40582ef786
--- /dev/null
+++ b/repotools.conf
@@ -0,0 +1,8 @@
+# Global configuration file for the repotools utility
+
+# Local storage for repositories
+PATH_REPOSITORIES="${HOME}/.local/share/repotools/repositories"
+
+# Build environment for building packages in a clean chroot
+PATH_BUILD="{HOME}/.local/share/repotools/build"
+
diff --git a/sync_repositories.sh b/sync_repositories.sh
new file mode 100644
index 000000000000..07040103ae36
--- /dev/null
+++ b/sync_repositories.sh
@@ -0,0 +1,43 @@
+# Functions for syncing repositories with the remote
+
+function sync_with_remote() {
+  local repository_name="$1"; shift
+
+  if [[ ! -z "${repository_name}" ]]; then
+    # sync a single repository
+
+    if [[  -z "${LOCAL_REMOTE_REPO_ADDRESS}" ]]; then
+      echo "The repository ${repository_name} does not have a remote git address configured."
+      return
+    fi
+
+    git --work-tree="${PATH_REPOSITORIES}/${repository_name}/" --git-dir="${PATH_REPOSITORIES}/${repository_name}/.git" remote update
+
+    git --work-tree="${PATH_REPOSITORIES}/${repository_name}/" --git-dir="${PATH_REPOSITORIES}/${repository_name}/.git" add .
+    
+    git --work-tree="${PATH_REPOSITORIES}/${repository_name}/" --git-dir="${PATH_REPOSITORIES}/${repository_name}/.git" commit -a -m "$(date)"
+
+    local upstream=${1:-'@{u}'}
+    local local_status=$(git --work-tree=${PATH_REPOSITORIES}/${repository_name}/ --git-dir=${PATH_REPOSITORIES}/${repository_name}/.git rev-parse @)
+    local remote_status=$(git --work-tree=${PATH_REPOSITORIES}/${repository_name}/ --git-dir=${PATH_REPOSITORIES}/${repository_name}/.git rev-parse "$upstream")
+    local base_status=$(git --work-tree=${PATH_REPOSITORIES}/${repository_name}/ --git-dir=${PATH_REPOSITORIES}/${repository_name}/.git merge-base @ "$upstream")
+
+    if [ $local_status == $remote_status ]; then
+      echo "The repository ${repository_name} is up to date."
+    elif [ $local_status == $base_status ]; then
+      echo "${repository_name} is not up to date with the remote, pulling the changes.."
+      git --work-tree="${PATH_REPOSITORIES}/${repository_name}/" --git-dir="${PATH_REPOSITORIES}/${repository_name}/.git" pull 
+    elif [ $remote_status == $base_status ]; then
+      echo "${repository_name} is ahead of the remote, pushing the changes.."            
+      git --work-tree="${PATH_REPOSITORIES}/${repository_name}/" --git-dir="${PATH_REPOSITORIES}/${repository_name}/.git" push 
+    else
+      echo "${repository_name} and the remote are diverged."
+    fi
+  else
+    # sync all repositories
+    echo "Syncing all repositories."
+    for reponame in "${PATH_REPOSITORIES}/*"; do
+      bash repotools -S "$(basename ${reponame})"
+    done
+  fi
+}
\ No newline at end of file
diff --git a/update_repositories.sh b/update_repositories.sh
new file mode 100644
index 000000000000..f4762251729f
--- /dev/null
+++ b/update_repositories.sh
@@ -0,0 +1,15 @@
+# Functions for updating repositories
+
+function update_repository() {
+  local repository_name="$1"; shift
+
+  if [[ ! -z "${repository_name}" ]]; then
+    # update a single repository
+    aursync --repo "$LOCAL_REPOSITORY_NAME" --root "$PATH_REPOSITORIES/${repository_name}/pkg" -u
+  else
+    # update all repositories
+    for reponame in "${PATH_REPOSITORIES}/*"; do
+      bash repotools -U "$(basename ${reponame})"
+    done
+  fi
+}
\ No newline at end of file
diff --git a/utils.sh b/utils.sh
new file mode 100644
index 000000000000..67ddb38a8409
--- /dev/null
+++ b/utils.sh
@@ -0,0 +1,17 @@
+# Utilities
+
+function source_pkg_config() {
+
+  local repository_name="$1"; shift
+
+  if [[ ! -f "${PATH_REPOSITORIES}/${repository_name}/.config" ]]; then
+    echo "The repository ${repository_name} has no config file."
+    exit 1
+  fi
+
+  source "${PATH_REPOSITORIES}/${repository_name}/.config"
+}
+
+function remove_tmp_files() {
+  rm "${PATH_REPOSITORIES}"/*.tmp
+}
\ No newline at end of file