refactor(installer): remove doubled code for RC

scripts/installer/installer

@@ -1,10 +1,17 @@
 #!/usr/bin/env bash
 
 ABRA_VERSION="0.3.0-alpha"
-RC_VERSION="0.3.1-rc1"
 ABRA_RELEASE_URL="https://git.coopcloud.tech/api/v1/repos/coop-cloud/abra/releases/tags/$ABRA_VERSION"
+RC_VERSION="0.3.1-rc1"
 RC_VERSION_URL="https://git.coopcloud.tech/api/v1/repos/coop-cloud/abra/releases/tags/$RC_VERSION"
 
+for arg in "$@"; do
+  if [ "$arg" == "--rc" ]; then
+    ABRA_VERSION="$RC_VERSION"
+    ABRA_RELEASE_URL="$RC_VERSION_URL"
+  fi
+done
+
 function show_banner {
   echo ""
   echo "   ____                           ____ _                 _ "
@@ -37,6 +44,7 @@ function install_abra_release {
     exit 1
   fi
 
+
   # FIXME: support different architectures
   PLATFORM=$(uname -s | tr '[:upper:]' '[:lower:]')_$(uname -m)
   FILENAME="abra_"$ABRA_VERSION"_"$PLATFORM""
@@ -81,75 +89,11 @@ function install_abra_release {
   echo "abra installed to $HOME/.local/bin/abra"
 }
 
-function install_abra_rc {
-  mkdir -p "$HOME/.local/bin"
-
-  if ! type "curl" > /dev/null 2>&1; then
-    echo "'curl' is not installed, cannot proceed..."
-    echo "perhaps try installing manually via the releases URL?"
-    echo "https://git.coopcloud.tech/coop-cloud/abra/releases"
-    exit 1
-  fi
-
-  # FIXME: support different architectures
-  PLATFORM=$(uname -s | tr '[:upper:]' '[:lower:]')_$(uname -m)
-  FILENAME="abra_"$RC_VERSION"_"$PLATFORM""
-  sed_command_rel='s/.*"assets":\[\{[^]]*"name":"'$FILENAME'"[^}]*"browser_download_url":"([^"]*)".*\].*/\1/p'
-  sed_command_checksums='s/.*"assets":\[\{[^\]*"name":"checksums.txt"[^}]*"browser_download_url":"([^"]*)".*\].*/\1/p'
-
-  json=$(curl -s $RC_VERSION_URL)
-  release_url=$(echo $json | sed -En $sed_command_rel)
-  checksums_url=$(echo $json | sed -En $sed_command_checksums)
-
-  checksums=$(curl -s $checksums_url)
-  checksum=$(echo "$checksums" | grep "$FILENAME" - | sed -En 's/([0-9a-f]{64})\s+'"$FILENAME"'.*/\1/p')
-
-  echo "downloading $RC_VERSION $PLATFORM binary release for abra..."
-  curl --progress-bar "$release_url" --output "$HOME/.local/bin/.abra-download"
-  localsum=$(sha256sum $HOME/.local/bin/.abra-download | sed -En 's/([0-9a-f]{64})\s+.*/\1/p')
-  echo "checking if checksums match..."
-  if [[ "$localsum" != "$checksum" ]]; then
-      print_checksum_error
-      exit 1
-  fi
-  echo "$(tput setaf 2)check successful!$(tput sgr0)"
-  mv "$HOME/.local/bin/.abra-download" "$HOME/.local/bin/abra"
-  chmod +x "$HOME/.local/bin/abra"
-
-  x=$(echo $PATH | grep $HOME/.local/bin)
-  if [ $? -ne 0 ]; then
-      echo "$(tput setaf 3)WARNING: $HOME/.local/bin/ is not in \$PATH! If you want to run abra by just typing "abra" you should add it to your \$PATH! To do that run:$(tput sgr0)"
-      p=$HOME/.local/bin
-      com="echo PATH=\$PATH:$p"
-      if [[ $SHELL =~ "bash" ]]; then
-          echo "echo $com >> $HOME/.bashrc"
-      elif [[ $SHELL =~ "fizsh" ]]; then
-          echo "echo $com >> $HOME/.fizsh/.fizshrc"
-      elif [[ $SHELL =~ "zsh" ]]; then
-          echo "echo $com >> $HOME/.zshrc"
-      else
-          echo "echo $com >> $HOME/.profile"
-      fi
-  fi
-
-  echo "abra installed to $HOME/.local/bin/abra"
-}
 
 function run_installation {
   show_banner
   install_abra_release
 }
 
-function run_rc_installation {
-    show_banner
-    install_abra_rc
-}
-
-for arg in "$@"; do
-    if [ "$arg" == "--rc" ]; then
-        run_rc_installation "$@"
-        exit 0
-    fi
-done
 run_installation "$@"
 exit 0