Add Fork and Branch Detection Functions

Added two new functions to the script which should point it to the correct fork and branch to clone from which will lead to a successful build.

And as always did some more scripts cleanup and added notes where needed.

Update linux-build.sh - remove --verbose from ls-remote of git

Update linux-build.sh - Correct Variable Mistakes

scripts/linux-build.sh

@@ -41,40 +41,19 @@ SCRIPT=`basename "$0"`
 SCRIPTDIR=`dirname "$0"`
 cd "$SCRIPTDIR/.."
 
-# Main repository location, as an absolute path.
+# Main repository location and Working Directory, as an absolute path.
 TOPDIR=`pwd`
+WORKING_DIR=`cd TOPDIR/..`
 cd "$TOPDIR"
 
-# TODO: These variables below should be called from the GitHub actions 
-# environment. Then change this to an if statement incase those environment 
-# variables are not set.
-
-# This script pulls down and maintains a clone of the mypaint project so I need
-# to keep track of the root directory of the project. This will be using ubuntu
-# image from github actions and the root directory will be /home/work/mypaint/.
-
 # Gather revelant information of the project and where it was cloned.
 SRC_REMOTE_URL="$(git config --get remote.origin.url)"
 SRC_REMOTE_USRNAME="$(echo $SRC_REMOTE_URL | awk -F[:/.] '{print $6}')"
 SRC_REMOTE_PROJECT_NAME="$(echo $SRC_REMOTE_URL | awk -F[:/.] '{print $7}')"
 SRC_SITE="$(git config --get remote.origin.url | sed -nE 's#(https://[^/]*)/.*#\1#p')"
 SRC_UPSTREAM_URL="$SRC_SITE/$SRC_REMOTE_PROJECT_NAME/$SRC_REMOTE_PROJECT_NAME.git"
 SRC_BRANCH=$(git rev-parse --abbrev-ref HEAD)
-
-# Need to make the script for package management flexible so that it can be used
-# on other systems. Need to make running sudo optional as well. 
-
-PKG_MANAGER="apt-get"
-UPDATE_CMD="sudo $PKG_MANAGER update"
-UPGRADE_CMD="sudo $PKG_MANAGER upgrade"
-INSTALL_CMD="sudo $PKG_MANAGER install -y"
-REMOVE_CMD="sudo $PKG_MANAGER remove -y"
-
-# Set a package dependency list incase other OS's are used.
-
-DEP_LIST="g++ gettext intltool gir1.2-gtk-3.0 libgtk-3-dev libjson-c-dev \
-          liblcms2-dev libpng-dev python3-dev python-gi-dev python3-gi-cairo \
-          python3-nose python3-numpy python3-setuptools swig git"
+DEFAULT_BRANCH=$(git symbolic-ref refs/remotes/origin/HEAD | rev | cut -d'/' -f1 | rev)
 
 # These are just here to make the output of the script more readable in the logs.
 
@@ -102,6 +81,27 @@ lognote() {
     echo -e "${NC}"
 }
 
+# TODO: These variables below should be called from the GitHub actions 
+# environment. Then change this to an if statement incase those environment 
+# variables are not set.
+
+# Need to make the script for package management flexible so that it can be used
+# on other systems. Need to make running sudo optional as well. 
+
+PKG_MANAGER="apt-get"
+UPDATE_CMD="sudo $PKG_MANAGER update"
+UPGRADE_CMD="sudo $PKG_MANAGER upgrade"
+INSTALL_CMD="sudo $PKG_MANAGER install -y"
+REMOVE_CMD="sudo $PKG_MANAGER remove -y"
+
+# Set a package dependency list incase other OS's are used.
+
+DEP_LIST="g++ gettext intltool gir1.2-gtk-3.0 libgtk-3-dev libjson-c-dev \
+          liblcms2-dev libpng-dev python3-dev python-gi-dev python3-gi-cairo \
+          python3-nose python3-numpy python3-setuptools swig git"
+
+
+
 # This function will be used to update the environment and upgrade the packages
 
 prepare_enviroment(){
@@ -127,63 +127,73 @@ install_dependencies() {
   logok "Pixbuf query loaders cache updated"
 }
 
-# The use_correct_branch() fuction will check the upstream remote repository for the correct branch and
-# if it exists it will use the same branch. If it does not exist it will use
-# the main branch. This will most likely be called from the install_from_source()
-# function.
+# This function will select the correct fork of the source package and pass it to $SOURCEPKG_URL.
+use_correct_fork(){
+  if [ -z "$1" ]; then
+    logerror "No argument passed to use_correct_fork()"
+    exit 1
+  fi
+  SOURCEPKG="$1"
+  loginfo "Checking to see if $SRC_REMOTE_USERNAME has $SOURCEPKG in their Repositories"
+  SOURCEPKG_URL="$SRC_SITE/$SRC_REMOTE_USRNAME/$SOURCEPKG.git"
+  if ! git ls-remote --heads $SOURCEPKG_URL; then
+    lognote "No fork found for $SOURCEPKG. Using upstream source"
+    $SOURCEPKG_URL="$SRC_SITE/$SRC_REMOTE_PROJECT_NAME/$SOURCEPKG.git"
+    if ! git ls-remote --heads $SOURCEPKG_URL; then
+      logerror "No upstream source for $SOURCEPKG exits"
+      exit 1
+    fi
+  fi
+  loginfo "The Correct source for $SOURCEPKG is $SOURCEPKG_URL."
+}
 
+# This function will select the correct branch of the source package and pass it to $SOURCEPKG_BRANCH.
 use_correct_branch(){
-  # Set the branch name
-  SRC_BRANCH=$(git rev-parse --abbrev-ref HEAD)
-
-  loginfo "$SOURCEPKG is on branch $SRC_BRANCH"
-
-  # Check if the branch exists in the mypaint repository
-  git ls-remote --heads https://github.com/owner1/repo1.git $branch | grep -q refs/heads/$branch
-  if [ $? -eq 0 ]; then
-      branch=$branch
+  if [ -z "$1" ]; then
+    logerror "No argument passed to use_correct_branch()"
+    exit 1
+  fi
+  SOURCEPKG="$1"
+  loginfo "Checking to see if $SRC_BRANCH exists in $SOURCEPKG git repository"
+  if ! git ls-remote --heads $SOURCEPKG_URL $SRC_BRANCH; then
+    lognote "No branch found for $SOURCEPKG. Using $DEFAULT_BRANCH branch"
+    SOURCEPKG_BRANCH="$DEFAULT_BRANCH"
   else
-      branch="main"
+    SOURCEPKG_BRANCH="$SRC_BRANCH"
   fi
 
-  # Checkout the branches
-  git clone --branch $branch1 https://github.com/owner1/repo1.git repo1
+  loginfo " USING $SOURCEPKG_BRANCH branch for $SOURCEPKG"
 }
 
-# This function will be used to install the dependencies from source. Need to
-# make it modular so that it can be used for other enviroment or when we change
-# build procces.
-
+# This function will be used to install the source package from the source. Needs
+# use_correct_fork() and use_correct_branch() to work properly.
 install_from_source(){
-   SOURCEPKG="$1"
-   INSTALL="$2"
-   SOURCEPKG_URI="$SRC_SITE/$SRC_REMOTE_USRNAME/$SOURCEPKG"
-   loginfo "Cloning $SOURCEPKG Repository"
-   cd $TOPDIR
-   # Check to see if the user has forked the repository. If not use upstream.
-   if ! git clone --verbose $SOURCEPKG_URI; then
-    lognote "User has no fork of $SOURCEPKG. Using upstream source"
-    if ! git clone --verbose $SRC_SITE/$SRC_REMOTE_PROJECT_NAME/$SOURCEPKG.git; then
-      logerror "Failed to clone $SOURCEPKG"
-      exit 1
-    fi
-   fi
-   pushd "$SOURCEPKG"
-   # TODO: Make this bit of code into it's own function.
-   loginfo "Building $SOURCEPKG"
-   ./autogen.sh
-   ./configure --prefix=/usr
-   make
-   if $INSTALL; then
-    loginfo "Installing $SOURCEPKG into Enviroment"
-    sudo make install
-    logok "Install finished"
-   fi
-   popd
-   # This should stay instead of deleting the source package.
-   # At least for testing.
-   loginfo "Removing $SOURCEPKG" Source from Environment
-   sudo rm -v -fr $SOURCEPKG
+  SOURCEPKG="$1"
+  INSTALL="$2"
+  cd $WORKING_DIR
+  use_correct_fork $SOURCEPKG
+  use_correct_branch $SOURCEPKG
+  loginfo "Cloning the correct $SOURCEPKG Repository"
+  if ! git clone --depth 1 --branch $SOURCEPKG_BRANCH $SOURCEPKG_URL; then
+    logerror "Failed to clone $SOURCEPKG"
+    exit 1
+  fi
+  pushd "$SOURCEPKG"
+  # TODO: Make this bit of script into it's own function.
+  loginfo "Building $SOURCEPKG"
+  ./autogen.sh
+  ./configure --prefix=/usr
+  make
+  if $INSTALL; then
+   loginfo "Installing $SOURCEPKG into Enviroment"
+   sudo make install
+   logok "Install finished"
+  fi
+  popd
+  # This should stay instead of deleting the source package.
+  # At least for testing.
+  loginfo "Removing $SOURCEPKG" Source from Environment
+  sudo rm -v -fr $SOURCEPKG
 }
 
 build_for_testing() {