feat(user/list_large_dirs.sh):Simplify check_depends()

diff --git a/user/list_large_dirs.sh b/user/list_large_dirs.sh
index 240ba3c79146db78cadfa5ffe05abb9bac49c9c5..ba3c042321336898378a00b330cd21a2d378792e 100755 (executable)
--- a/user/list_large_dirs.sh
+++ b/user/list_large_dirs.sh
@@ -6,11 +6,7 @@
 #   `vacation_photos`) could be found by running:
 #   $ script.sh 100 "$HOME"
 #   /home/johndoe/Pictures/unsorted/notjunk/vacation_photos
-# Version: 0.0.1
-
-declare -Ag appRollCall # Associative array for storing app status
-declare -Ag fileRollCall # Associative array for storing file status
-declare -Ag dirRollCall # Associative array for storing dir status
+# Version: 0.0.2
 
 yell() { echo "$0: $*" >&2; } # print script path and all args to stderr
 die() { yell "$*"; exit 111; } # same as yell() but non-zero exit status
@@ -44,166 +40,11 @@ checkInt() {
        return 1;
     fi;
 } # Checks if arg is integer
-checkapp() {
-    # Desc: If arg is a command, save result in assoc array 'appRollCall'
-    # Usage: checkapp arg1 arg2 arg3 ...
-    # Version: 0.1.1
-    # Input: global assoc. array 'appRollCall'
-    # Output: adds/updates key(value) to global assoc array 'appRollCall'
-    # Depends: bash 5.0.3
-    local returnState    
-
-    #===Process Args===
-    for arg in "$@"; do
-       if command -v "$arg" 1>/dev/null 2>&1; then # Check if arg is a valid command
-           appRollCall[$arg]="true";
-           if ! [ "$returnState" = "false" ]; then returnState="true"; fi;
-       else
-           appRollCall[$arg]="false"; returnState="false";
-       fi;
-    done;
-
-    #===Determine function return code===
-    if [ "$returnState" = "true" ]; then
-       return 0;
-    else
-       return 1;
-    fi;
-} # Check that app exists
-checkfile() {
-    # Desc: If arg is a file path, save result in assoc array 'fileRollCall'
-    # Usage: checkfile arg1 arg2 arg3 ...
-    # Version: 0.1.2
-    # Input: global assoc. array 'fileRollCall'
-    # Output: adds/updates key(value) to global assoc array 'fileRollCall';
-    # Output: returns 0 if app found, 1 otherwise
-    # Depends: bash 5.0.3
-    local returnState
-
-    #===Process Args===
-    for arg in "$@"; do
-       if [ -f "$arg" ]; then
-           fileRollCall["$arg"]="true";
-           if ! [ "$returnState" = "false" ]; then returnState="true"; fi;
-        elif [ -z "$arg" ]; then
-            fileRollCall["(no name)"]="false"; returnState="false";
-       else
-           fileRollCall["$arg"]="false"; returnState="false";
-       fi;
-    done;
-    
-    #===Determine function return code===
-    if [ "$returnState" = "true" ]; then
-       return 0;
-    else
-       return 1;
-    fi;
-} # Check that file exists
-checkdir() {
-    # Desc: If arg is a dir path, save result in assoc array 'dirRollCall'
-    # Usage: checkdir arg1 arg2 arg3 ...
-    # Version 0.1.2
-    # Input: global assoc. array 'dirRollCall'
-    # Output: adds/updates key(value) to global assoc array 'dirRollCall';
-    # Output: returns 0 if all args are dirs; 1 otherwise
-    # Depends: Bash 5.0.3
-    local returnState
-
-    #===Process Args===
-    for arg in "$@"; do
-       if [ -z "$arg" ]; then
-           dirRollCall["(Unspecified Dirname(s))"]="false"; returnState="false";
-       elif [ -d "$arg" ]; then
-           dirRollCall["$arg"]="true";
-           if ! [ "$returnState" = "false" ]; then returnState="true"; fi
-       else
-           dirRollCall["$arg"]="false"; returnState="false";
-       fi
-    done
-    
-    #===Determine function return code===
-    if [ "$returnState" = "true" ]; then
-       return 0;
-    else
-       return 1;
-    fi
-} # Check that dir exists
-displayMissing() {
-    # Desc: Displays missing apps, files, and dirs
-    # Usage: displayMissing
-    # Version 1.0.0
-    # Input: associative arrays: appRollCall, fileRollCall, dirRollCall
-    # Output: stderr: messages indicating missing apps, file, or dirs
-    # Output: returns exit code 0 if nothing missing; 1 otherwise
-    # Depends: bash 5, checkAppFileDir()
-    local missingApps value appMissing missingFiles fileMissing
-    local missingDirs dirMissing
-
-    #==BEGIN Display errors==
-    #===BEGIN Display Missing Apps===
-    missingApps="Missing apps  :";
-    #for key in "${!appRollCall[@]}"; do echo "DEBUG:$key => ${appRollCall[$key]}"; done
-    for key in "${!appRollCall[@]}"; do
-       value="${appRollCall[$key]}";
-       if [ "$value" = "false" ]; then
-           #echo "DEBUG:Missing apps: $key => $value";
-           missingApps="$missingApps""$key ";
-           appMissing="true";
-       fi;
-    done;
-    if [ "$appMissing" = "true" ]; then  # Only indicate if an app is missing.
-       echo "$missingApps" 1>&2;
-    fi;
-    unset value;
-    #===END Display Missing Apps===
-
-    #===BEGIN Display Missing Files===
-    missingFiles="Missing files:";
-    #for key in "${!fileRollCall[@]}"; do echo "DEBUG:$key => ${fileRollCall[$key]}"; done
-    for key in "${!fileRollCall[@]}"; do
-       value="${fileRollCall[$key]}";
-       if [ "$value" = "false" ]; then
-           #echo "DEBUG:Missing files: $key => $value";
-           missingFiles="$missingFiles""$key ";
-           fileMissing="true";
-       fi;
-    done;
-    if [ "$fileMissing" = "true" ]; then  # Only indicate if an app is missing.
-       echo "$missingFiles" 1>&2;
-    fi;
-    unset value;
-    #===END Display Missing Files===
-
-    #===BEGIN Display Missing Directories===
-    missingDirs="Missing dirs:";
-    #for key in "${!dirRollCall[@]}"; do echo "DEBUG:$key => ${dirRollCall[$key]}"; done
-    for key in "${!dirRollCall[@]}"; do
-       value="${dirRollCall[$key]}";
-       if [ "$value" = "false" ]; then
-           #echo "DEBUG:Missing dirs: $key => $value";
-           missingDirs="$missingDirs""$key ";
-           dirMissing="true";
-       fi;
-    done;
-    if [ "$dirMissing" = "true" ]; then  # Only indicate if an dir is missing.
-       echo "$missingDirs" 1>&2;
-    fi;
-    unset value;
-    #===END Display Missing Directories===
-
-    #==END Display errors==
-    #==BEGIN Determine function return code===
-    if [ "$appMissing" == "true" ] || [ "$fileMissing" == "true" ] || [ "$dirMissing" == "true" ]; then
-       return 1;
-    else
-       return 0;
-    fi
-    #==END Determine function return code===
-} # Display missing apps, files, dirs
 check_depends() {
     local flag_return=0;
 
-    if ! checkapp du; then flag_return="1"; fi;
+    if ! command -v du; then flag_return=1; fi;
+
     return "$flag_return";
 }; # returns 1 if missing dependencies
 size_dir_contents() {