Ports: Improve and refactor build_all.sh script

All the shellcheck errors are fixed, and output will how have coloured
logs with status symbol.

	1. # -> operation completed successfully
	2. ~ -> currently processing port
	3. * -> information
	4. ! -> warning
	5. x -> error in processing port

Now, you can use the failfast option to instantly exit the loop
whenever it reports an error while processing any port. Using realpath
of the ports directory to use `cd` operation only once and get rid of
pushd-popd pattern here.

Ports/build_all.sh

@@ -1,89 +1,112 @@
 #!/usr/bin/env bash
 
-clean=false
-verbose=false
+some_failed='false'
+action='build'
+verbose='false'
+failfast='false'
 
-case "$1" in
-    clean)
-        clean=true
+for arg in "$@"; do
+    case "$arg" in
+        clean*)
+            action="$arg"
             ;;
         verbose)
-        verbose=true
+            verbose='true'
             ;;
-    *)
+        failfast)
+            failfast='true'
             ;;
-esac
-
-case "$2" in
-    clean)
-        clean=true
-        ;;
-    verbose)
-        verbose=true
-        ;;
-    *)
-        ;;
-esac
-
-some_failed=false
-built_ports=""
-
-for file in *; do
-    if [ -d $file ]; then
-        pushd $file > /dev/null
-            port=$(basename $file)
-            port_built=0
-            for built_port in $built_ports; do
-                if [ "$built_port" = "$port" ]; then
-                    port_built=1
-                    break
-                fi
-            done
-            if [ $port_built -eq 1 ]; then
-                echo "Built $port."
-                popd > /dev/null
-                continue
-            fi
-            if ! [ -f package.sh ]; then
-                echo "ERROR: Skipping $port because its package.sh script is missing."
-                popd > /dev/null
-                continue
-            fi
-
-            if [ "$clean" == true ]; then
-                if [ "$verbose" == true ]; then
-                    ./package.sh clean_all
-                else
-                    ./package.sh clean_all > /dev/null 2>&1
-                fi
-            fi
-            if [ "$verbose" == true ]; then
-                if ./package.sh; then
-                    echo "Built ${port}."
-                else
-                    echo "ERROR: Build of ${port} was not successful!"
-                    some_failed=true
-                    popd > /dev/null
-                    continue
-                fi
-            else
-                if ./package.sh > /dev/null 2>&1; then
-                    echo "Built ${port}."
-                else
-                    echo "ERROR: Build of ${port} was not successful!"
-                    some_failed=true
-                    popd > /dev/null
-                    continue
-                fi
-            fi
-
-            built_ports="$built_ports $port $(./package.sh showproperty depends) "
-        popd > /dev/null
-    fi
+    esac
 done
 
-if [ "$some_failed" == false ]; then
-    exit 0
-else
+some_failed=false
+processed_ports=()
+
+log_success() {
+    echo -e "\033[1;32m[#]\033[0m $1"
+}
+
+log_warn() {
+    echo -e "\033[1;33m[!]\033[0m $1"
+}
+
+log_info() {
+    echo -e "\033[1;36m[*]\033[0m $1"
+}
+
+log_process() {
+    echo -e "\033[1m[~]\033[0m $1"
+}
+
+log_error() {
+    echo -e "\033[1;31m[x]\033[0m $1"
+}
+
+do_build_port() {
+    log_process "Building $port_name"
+    if $verbose; then
+        ./package.sh
+    else
+        ./package.sh &> /dev/null
+    fi
+}
+
+do_clean_port() {
+    log_process "Cleaning $port_name"
+    if $verbose; then
+        ./package.sh "$1"
+    else
+        ./package.sh "$1" &> /dev/null
+    fi
+}
+
+ports_dir=$(realpath "$(dirname "${BASH_SOURCE[0]}")")
+while IFS= read -r -d '' port_dir; do
+    port_name="$(basename "$port_dir")"
+    if [[ " ${processed_ports[*]} " == *" $port_name "* ]]; then
+        log_info "$port_name is already processed"
+        continue
+    fi
+
+    if ! cd "$port_dir"; then
+        log_error "Can not change directory to '$port_name'"
+        exit 1
+    fi
+
+    if [[ ! -x ./package.sh ]]; then
+        log_warn "$port_name does not have executable package.sh"
+        continue
+    fi
+
+    case "$action" in
+        clean*)
+            if do_clean_port "$action"; then
+                log_success "Cleaned $port_name"
+            else
+                log_error "Failed cleaning $port_name"
+                some_failed='true'
+                if $failfast; then
+                    exit 1
+                fi
+            fi
+        ;;
+        build)
+            if do_build_port; then
+                log_success "Built $port_name"
+            else
+                log_error "Failed building $port_name"
+                some_failed='true'
+                if $failfast; then
+                    exit 1
+                fi
+            fi
+        ;;
+    esac
+
+    # shellcheck disable=SC2207
+    processed_ports+=("$port_name" $(./package.sh showproperty depends))
+done < <(find "$ports_dir" -mindepth 1 -maxdepth 1 -type d -print0 | sort -z)
+
+if $some_failed; then
     exit 1
 fi