auto install bash completions

Makefile

@@ -1,4 +1,5 @@
 .DEFAULT_GOAL := build
+SHELL := /bin/bash
 
 .PHONY: build
 build:
@@ -27,3 +28,7 @@ clean:
 .PHONY: top
 top:
 	dune utop .
+
+.PHONY: install_bash_completions
+install_bash_completions:
+	. ./install-bash-completions.sh

install-bash-completions.sh

@@ -0,0 +1,33 @@
+#!/bin/bash
+
+# Define variables
+completion_dir="$HOME/.local/share/bash-completion"
+completion_file="passage-completion.sh"
+completion_path="$completion_dir/$completion_file"
+bashrc="$HOME/.bashrc"
+source_line="source $completion_path"
+
+# Check if the ~/.local/share/bash-completion directory exists, create it if it doesn't
+# If the directory doesn't exist it's likely the first time the script is run. We don't want to repeat it every time.
+if [ ! -d "$completion_dir" ]; then
+  echo "Setting up bash completions for Passage. Installing in $completion_dir and source them in your .bashrc file."
+  echo "Directory $completion_dir does not exist. Creating it."
+  mkdir -p "$completion_dir"
+fi
+
+if [ ! -f "$completion_path" ]; then
+  # Copy the passage-completion.sh file into the completion directory, replacing any existing file
+  echo "Copying $completion_file into $completion_dir."
+fi
+
+# Always copy the file, even if it already exists. This will update the completions
+cp -f "$completion_file" "$completion_path"
+
+# Check if the source line is already in the ~/.bashrc file, append it if not
+if ! grep -Fq "$source_line" "$bashrc"; then
+  echo "Updating $bashrc to source the completions."
+  echo "$source_line" >> "$bashrc"
+
+  # Source the completions in the current shell
+  source "$completion_path"
+fi

passage.opam

@@ -42,6 +42,7 @@ build: [
   ]
 ]
 dev-repo: "git+https://github.com/ahrefs/passage.git"
+install: [make "install_bash_completions"]
 x-ci-accept-failures: [
   "alpine-3.20"
   "archlinux"

passage.opam.template

@@ -1,3 +1,4 @@
+install: [make "install_bash_completions"]
 x-ci-accept-failures: [
   "alpine-3.20"
   "archlinux"