feat: simple scripts for aikup

aikup/install

@@ -0,0 +1,51 @@
+#!/usr/bin/env bash
+set -e
+
+echo Installing aikup...
+
+AIKEN_DIR=${AIKEN_DIR-"$HOME/.aiken"}
+AIKEN_BIN_DIR="$AIKEN_DIR/bin"
+
+BIN_URL="https://raw.githubusercontent.com/aiken-lang/aiken/master/aikup/aikup"
+BIN_PATH="$AIKEN_BIN_DIR/aikup"
+
+# Create the .aiken bin directory and aikup binary if it doesn't exist.
+mkdir -p $AIKEN_BIN_DIR
+curl -# -L $BIN_URL -o $BIN_PATH
+chmod +x $BIN_PATH
+
+# Store the correct profile file (i.e. .profile for bash or .zshrc for ZSH).
+case $SHELL in
+*/zsh)
+    PROFILE=$HOME/.zshrc
+    PREF_SHELL=zsh
+    INJECT="export PATH=\"\$PATH:$AIKEN_BIN_DIR\""
+    ;;
+*/bash)
+    PROFILE=$HOME/.bashrc
+    PREF_SHELL=bash
+    INJECT="export PATH=\"\$PATH:$AIKEN_BIN_DIR\""
+    ;;
+*/fish)
+    PROFILE=$HOME/.config/fish/config.fish
+    PREF_SHELL=fish
+    INJECT="fish_add_path $AIKEN_BIN_DIR"
+    ;;
+*/ash)
+    PROFILE=$HOME/.profile
+    PREF_SHELL=ash
+    INJECT="export PATH=\"\$PATH:$AIKEN_BIN_DIR\""
+    ;;
+*)
+    echo "aikup: could not detect shell, manually add ${AIKEN_BIN_DIR} to your PATH."
+    exit 1
+esac
+
+# Only add aikup if it isn't already in PATH.
+if [[ ":$PATH:" != *":${AIKEN_BIN_DIR}:"* ]]; then
+    # Add the aikup directory to the path and ensure the old PATH variables remain.
+    echo >> $PROFILE && echo "$INJECT" >> $PROFILE
+fi
+
+echo && echo "Detected your preferred shell is ${PREF_SHELL} and added aikup to PATH. Run 'source ${PROFILE}' or start a new terminal session to use aikup."
+echo "Then, simply run 'aikup' to install Aiken."