rewrite entirely in bash

Makefile

@@ -1,8 +1,7 @@
 all: install
 
 install:
-	cp pacstall-qa.wrapper $(DESTDIR)/usr/bin/pacstall-qa
-	install -Dm755 pacstall-qa -t $(DESTDIR)/usr/share/pacstall-qa/
+	install -Dm755 pacstall-qa -t $(DESTDIR)/usr/bin/
 	install -Dm644 README.md -t $(DESTDIR)/usr/share/pacstall-qa/
 
 uninstall:

pacstall-qa

@@ -1,42 +1,80 @@
-#!/usr/bin/env nu
+#!/bin/bash
 
-def parse-pr [pr: string, request: string] -> list {
-    return ($"($pr)/($request)" | parse "{provider}:{user}/{repo}/{pr}")
-}
+ansi_red=$(tput setaf 1)
+ansi_green=$(tput setaf 2)
+ansi_purple=$(tput setaf 5)
+ansi_reset=$(tput sgr0)
 
-def parse-link [provider: list, pkg: string] -> [list<string, list>] {
-    match $provider.provider.0 {
-        "github" => {
-            let gh_provides = (http get $"https://api.github.com/repos/($provider.user.0)/($provider.repo.0)/pulls/($provider.pr.0)")
-            return [$"https://raw.githubusercontent.com/($gh_provides.head.repo.full_name)/($gh_provides.head.sha)" $gh_provides]
-            },
-        _ => {
-                error make -u {
-                    msg: $"(ansi red)'($provider.provider.0)' is not a valid provider!(ansi reset)"
-                }
-             },
-    }
+parse_pr() {
+    IFS=':' read -ra ADDR <<< "$1"
+    local provider user repo pr
+    provider="${ADDR[0]}"
+    user=$(echo "${ADDR[1]}" | cut -d'/' -f1)
+    repo=$(echo "${ADDR[1]}" | cut -d'/' -f2)
+    pr="$2"
+    echo "$provider" "$user" "$repo" "$pr"
 }
 
-# A tool to target and install packages based off of PRs
-def main [
-         --metalink (-m): string = "github:pacstall/pacstall-programs" # Parse a URL to target for pacstall, default to pacstall-programs
-         --number (-n): string # PR number
-         --install (-I): string # Package to install
-         ] -> int {
-
-    if ($number | is-empty) or ($install | is-empty) {
-        print -e "'--number' and '--install' cannot be empty!"
+parse_link() {
+    unset login
+    local provider="$1" user="$2" repo="$3" pr="$4" pkg="$5"
+    if [[ "$provider" == "github" ]]; then
+        gh_provides=$(curl -s "https://api.github.com/repos/$user/$repo/pulls/$pr")
+        head_repo_full_name=$(echo "$gh_provides" | jq -r '.head.repo.full_name')
+        head_sha=$(echo "$gh_provides" | jq -r '.head.sha')
+        login=$(echo "$gh_provides" | jq -r '.head.user.login')
+        echo "https://raw.githubusercontent.com/$head_repo_full_name/$head_sha" "$login"
+    else
+        echo "${ansi_red}$provider${ansi_reset} is not a valid provider!"
         exit 1
-    }
-    let parsed_pr = (parse-pr $metalink $number)
-    let provider_url = (parse-link $parsed_pr $install)
-    print $"Backing up '/usr/share/pacstall/repo/pacstallrepo'"
-    ^sudo mv /usr/share/pacstall/repo/pacstallrepo /usr/share/pacstall/repo/pacstallrepo.pacstall-qa.bak
-    echo $"($provider_url.0)\n" | ^sudo tee /usr/share/pacstall/repo/pacstallrepo out> /dev/null
-    print $"Installing (ansi green)($install)(ansi reset)\((ansi purple)($provider_url.1.head.user.login)(ansi reset):(ansi red)($parsed_pr.pr.0)(ansi reset)\)"
-    ^pacstall -I $"($install)"
-    print $"Returning '/usr/share/pacstall/repo/pacstallrepo' backup"
-    ^sudo rm -f /usr/share/pacstall/repo/pacstallrepo
-    ^sudo mv /usr/share/pacstall/repo/pacstallrepo.pacstall-qa.bak /usr/share/pacstall/repo/pacstallrepo
+    fi
 }
+
+cleanup() {
+  if [[ -f /usr/share/pacstall/repo/pacstallrepo.pacstall-qa.bak ]]; then
+    echo "Returning '/usr/share/pacstall/repo/pacstallrepo' backup"
+    sudo rm -f /usr/share/pacstall/repo/pacstallrepo
+    sudo mv /usr/share/pacstall/repo/pacstallrepo.pacstall-qa.bak /usr/share/pacstall/repo/pacstallrepo
+  fi
+}
+
+trap cleanup EXIT INT
+
+metalink="github:pacstall/pacstall-programs"
+unset number inst
+
+while (("$#">0)); do
+    case "$1" in
+        -m|--metalink)
+            metalink="$2"
+            shift
+            ;;
+        -n|--number)
+            number="$2"
+            shift
+            ;;
+        -I|--install)
+            inst="$2"
+            shift
+            ;;
+        *)
+            echo "Unknown option: $1"
+            exit 1
+            ;;
+    esac
+    shift
+done
+
+if [[ -z "$number" || -z "$inst" ]]; then
+    echo "'--number' and '--install' cannot be empty!"
+    exit 1
+fi
+
+read provider user repo pr <<< $(parse_pr "$metalink" "$number")
+read provider_url login <<< $(parse_link "$provider" "$user" "$repo" "$pr" "$inst")
+
+echo "Backing up '/usr/share/pacstall/repo/pacstallrepo'"
+sudo mv /usr/share/pacstall/repo/pacstallrepo /usr/share/pacstall/repo/pacstallrepo.pacstall-qa.bak
+echo "$provider_url" | sudo tee /usr/share/pacstall/repo/pacstallrepo > /dev/null
+echo "Installing ${ansi_green}$inst${ansi_reset}(${ansi_purple}$login${ansi_reset}:${ansi_red}$pr${ansi_reset})"
+pacstall -I "$inst"