From acceccda87c60c76c06bef56a3c5780588473158 Mon Sep 17 00:00:00 2001
From: Pocco81 <pocco451@gmail.com>
Date: Tue, 3 Aug 2021 23:09:18 -0500
Subject: [PATCH] accept both args and flags

---
 install.sh | 173 ++++++++++++++---------------------------------------
 1 file changed, 46 insertions(+), 127 deletions(-)

diff --git a/install.sh b/install.sh
index 2b340896..7ed3898c 100755
--- a/install.sh
+++ b/install.sh
@@ -30,75 +30,31 @@ prompt() {
 _usage() {
     printf "%s" \
         "Usage: sh ${0##*/} [ options ]
-    -h  | --help         => Show this help.
-    -i  | --install      => Install the config.
-    -r  | --remove       => Remove the config.
-    -u  | --update       => Update the existing config without removing existing stuff.
+    -h, --help         -> Show this help.
+    -i, --install      -> Install the config.
+    -r, --remove       -> Remove the config.
+    -u, --update       -> Update the existing config without removing existing stuff.
 "
 }
 
-_eval_exit() {
-    status=$1
-    suc_msg=$2
-    err_msg=$3
-
-    case $status in
-    0)
-        prompt -s "${suc_msg}"
-        ;;
-    *)
-        prompt -e "${err_msg}"
-        ;;
-    esac
+skip=0
 
+_skip_ahead() {
+	amount=$1
+	skip=$((skip + amount))
 }
 
-_check_dependencies() {
-    _error_dependencies() {
-        prompt -r "Error: Install ${1} before proceeding."
-        exit 1
-    }
-    command -v git 1>/dev/null || _error_dependencies git
-    return 0
-}
-
-_install() {
-    _check_dependencies
-}
-
-_remove() {
-    prompt -i "-> Cleaning config ($HOME/.config/nvim/)"
-    # rm -rf "$HOME/.config/nvim/"
-
-    prompt -i "-> Cleaning miscellaneous ($HOME/.local/share/nvim/)"
-    # rm -rf "$HOME/.local/share/nvim/"
-
-    prompt -i "-> Cleaning cache ($HOME/.cache/nvim/)"
-    # rm -rf "$HOME/.cache/nvim/"
-}
-# _update() {}
-
-_init_settings() {
-    no_backup="false"
-    install="false"
-    uninstall="false"
-}
-
-_clean_arg() {
-    arg=$1
-    if [[ "$arg" == "--"* ]]; then
-        echo "${arg:2}"
-    elif [[ "$arg" == "-"* ]]; then
-        echo "${arg:1}"
-    fi
-}
-
-
 _parse_args() {
-	local args_func=$1
+	local func_args=$1
 	local argv=("$@")
+	# local skip=0
+
+	unset 'argv[0]' # becuase arg1 is $func_arg
+	for i in "${!argv[@]}"; do new_array+=( "${argv[i]}" ); done
+	argv=("${new_array[@]}")
+	unset new_array
+
     local argc=${#argv[@]}
-	local skip=0
 
     _skip_ahead() {
         amount=$1
@@ -129,99 +85,62 @@ _parse_args() {
                 break
                 ;;
             *)
-                eval "${eval_args}" "$(_clean_arg "${argv[j]}")" "$j"
+                # eval "${func_args}" "$(_clean_arg "${argv[j]}")" "$j"
+                eval "${func_args}" "${argv[j]}" "$j"
                 ;;
             esac
             ;;
         -*)
-            tangled_args=$(_clean_arg "${argv[j]}")
-            for ((k = 0; k < ${#tangled_args}; k++)); do
-                eval "${eval_args}" "${tangled_args:$k:1}" "$j"
-            done
+			if [[ ${#argv[j]} -le 2 ]]; then
+				eval "${func_args}" "${argv[j]}" "$j"
+			else
+				tangled_args=$(_clean_arg "${argv[j]}")
+				for ((k = 0; k < ${#tangled_args}; k++)); do
+					eval "${func_args}" "-${tangled_args:$k:1}" "$j"
+				done
+			fi
             ;;
         *)
-            prompt -w "Warning: flag ''${argv[j]}' not recognized"
+            eval "${func_args}" "${argv[j]}" "$j"
             ;;
         esac
     done
 }
 
 main() {
-    local argv=("$@")
-    local argc=${#argv[@]}
-    local skip=0
+    local argvs=("$@")
+    local argc=${#argvs[@]}
 
     assert_arg() {
-        var=$1
-        index=$2
+        var=$1 # flag
+        index=$2 # flag's index
         case ${var} in
-        h | help)
+        -h | --help)
             _usage
             ;;
-        i | install)
+        -i | --install)
             prompt -i "installing..."
             ;;
-        r | remove)
+        -r | --remove)
             prompt -i "removing..."
             ;;
-		# p | --path
+		-a | --action)
+			action=${argvs[index+1]}
+			prompt -i "Action to perform -> ${action}"
+			_skip_ahead 1
+			;;
+		-p=* | --path=*)
+			path="${var#*=}"
+			prompt -i "Path was set to -> ${path}"
+			;;
         *)
-            prompt -w "Warning: flag '${var}' not recognized"
+            prompt -w "Warning: unknown command '${var}'"
             ;;
         esac
     }
 
-    _skip_ahead() {
-        amount=$1
-        skip=$((skip + amount))
-    }
-
-	# works for:
-	# 1. normal flags (e.g. -h,--help)
-	# 2. nested flags (e.g. -ivh)
-	# 3. space sperated flags and args (e.g. --option argument)
-	# 4. equal separated flags and args (e.g. --option=argument)
-
-
-    for j in "${!argv[@]}"; do
-        if [[ ${skip} -gt 0 ]]; then
-            left=$((argc - j))
-            while [[ ${skip} > ${left} ]]; do ((skip--)); done
-            skip=$((skip - 1))
-            continue
-        fi
-
-        case ${argv[j]} in
-        --*) # End of all options.
-            case ${argv[j]} in
-            --) # End of all options.
-                break
-                ;;
-            *)
-                assert_arg "$(_clean_arg "${argv[j]}")" "$j"
-                ;;
-            esac
-            ;;
-        -*)
-            tangled_args=$(_clean_arg "${argv[j]}")
-            for ((k = 0; k < ${#tangled_args}; k++)); do
-                assert_arg "${tangled_args:$k:1}" "$j"
-            done
-            ;;
-        *)
-            prompt -w "Warning: flag ''${argv[j]}' not recognized"
-            ;;
-        esac
-    done
+	_parse_args "assert_arg" "${argvs[@]}"
 }
 
-init() {
-    if [ $# -eq 0 ]; then
-        prompt -e "ERROR: This script needs at least one argument"
-    else
-        _init_settings
-        main "${@}"
-    fi
-}
 
-init "${@}"
+main "${@}"