add install script and g_aliases source-able file

bin/g_aliases

@@ -0,0 +1,31 @@
+#!/usr/bin/env bash
+# NOTE: This file is "incomplete"!
+# NOTE: You have two options:
+# NOTE:   1. run `./configure`
+# NOTE:   2. manually set `G_BIN_DIR`
+
+# WARNING: Variables patterned "AUTO_*" are automatically
+# WARNING: replaced during `install_g` by `./configure`.
+# WARNING: :: If you're setting them manually then make sure
+# WARNING: :: they expand to absolute paths (ie ~/.local/bin or /usr/local/bin)
+
+# === Configure g_aliases === #
+G_BIN_DIR="AUTO_G_BIN_DIR" # g binary directory
+# =========================== #
+
+# Add binary directory to PATH (if not already)
+if [ -d "$G_BIN_DIR" ] && [[ ":$PATH:" != *":$G_BIN_DIR:"* ]]; then
+    PATH="${PATH:+"$PATH:"}$G_BIN_DIR"
+fi
+
+# === g_aliases === #
+G="$G_BIN_DIR/g"
+alias g="$G"
+alias g!="$G !"
+alias g#="$G '#'" # avoid comment interpretation
+alias g+="$G +"
+alias g@="$G @"
+alias g^="$G ^"
+alias g^^="$G ^^"
+alias gdiff="$G diff"
+# ================= #