unitproc/bktemp-checkAppFileDir

   1 #!/bin/bash
   2 # Desc: Checks that apps, files, or dirs exist.
   3
   4 #==BEGIN Define script parameters==
   5 declare -Ag appRollCall # Associative array for storing app status
   6 declare -Ag fileRollCall # Associative array for storing file status
   7 declare -Ag dirRollCall # Associative array for storing dir status
   8 #==END Define script parameters==
   9
  10 #===BEGIN Declare local script functions===
  11 checkapp() {
  12     # Desc: If arg is a command, save result in assoc array 'appRollCall'
  13     # Usage: checkapp arg1 arg2 arg3 ...
  14     # Version: 0.1.1
  15     # Input: global assoc. array 'appRollCall'
  16     # Output: adds/updates key(value) to global assoc array 'appRollCall'
  17     # Depends: bash 5.0.3
  18     local returnState
  19
  20     #===Process Args===
  21     for arg in "$@"; do
  22         if command -v "$arg" 1>/dev/null 2>&1; then # Check if arg is a valid command
  23             appRollCall[$arg]="true";
  24             if ! [ "$returnState" = "false" ]; then returnState="true"; fi;
  25         else
  26             appRollCall[$arg]="false"; returnState="false";
  27         fi;
  28     done;
  29
  30     #===Determine function return code===
  31     if [ "$returnState" = "true" ]; then
  32         return 0;
  33     else
  34         return 1;
  35     fi;
  36 } # Check that app exists
  37 checkfile() {
  38     # Desc: If arg is a file path, save result in assoc array 'fileRollCall'
  39     # Usage: checkfile arg1 arg2 arg3 ...
  40     # Version: 0.1.1
  41     # Input: global assoc. array 'fileRollCall'
  42     # Output: adds/updates key(value) to global assoc array 'fileRollCall';
  43     # Output: returns 0 if app found, 1 otherwise
  44     # Depends: bash 5.0.3
  45     local returnState
  46
  47     #===Process Args===
  48     for arg in "$@"; do
  49         if [ -f "$arg" ]; then
  50             fileRollCall["$arg"]="true";
  51             if ! [ "$returnState" = "false" ]; then returnState="true"; fi;
  52         else
  53             fileRollCall["$arg"]="false"; returnState="false";
  54         fi;
  55     done;
  56
  57     #===Determine function return code===
  58     if [ "$returnState" = "true" ]; then
  59         return 0;
  60     else
  61         return 1;
  62     fi;
  63 } # Check that file exists
  64 checkdir() {
  65     # Desc: If arg is a dir path, save result in assoc array 'dirRollCall'
  66     # Usage: checkdir arg1 arg2 arg3 ...
  67     # Version 0.1.1
  68     # Input: global assoc. array 'dirRollCall'
  69     # Output: adds/updates key(value) to global assoc array 'dirRollCall';
  70     # Output: returns 0 if app found, 1 otherwise
  71     # Depends: Bash 5.0.3
  72     local returnState
  73
  74     #===Process Args===
  75     for arg in "$@"; do
  76         if [ -d "$arg" ]; then
  77             dirRollCall["$arg"]="true";
  78             if ! [ "$returnState" = "false" ]; then returnState="true"; fi
  79         else
  80             dirRollCall["$arg"]="false"; returnState="false";
  81         fi
  82     done
  83
  84     #===Determine function return code===
  85     if [ "$returnState" = "true" ]; then
  86         return 0;
  87     else
  88         return 1;
  89     fi
  90 } # Check that dir exists
  91 displayMissing() {
  92     # Desc: Displays missing apps, files, and dirs
  93     # Usage: displayMissing
  94     # Version 0.1.1
  95     # Input: associative arrays: appRollCall, fileRollCall, dirRollCall
  96     # Output: stderr: messages indicating missing apps, file, or dirs
  97     # Depends: bash 5, checkAppFileDir()
  98     local missingApps value appMissing missingFiles fileMissing
  99     local missingDirs dirMissing
 100
 101     #==BEGIN Display errors==
 102     #===BEGIN Display Missing Apps===
 103     missingApps="Missing apps  :";
 104     #for key in "${!appRollCall[@]}"; do echo "DEBUG:$key => ${appRollCall[$key]}"; done
 105     for key in "${!appRollCall[@]}"; do
 106         value="${appRollCall[$key]}";
 107         if [ "$value" = "false" ]; then
 108             #echo "DEBUG:Missing apps: $key => $value";
 109             missingApps="$missingApps""$key ";
 110             appMissing="true";
 111         fi;
 112     done;
 113     if [ "$appMissing" = "true" ]; then  # Only indicate if an app is missing.
 114         echo "$missingApps" 1>&2;
 115     fi;
 116     unset value;
 117     #===END Display Missing Apps===
 118
 119     #===BEGIN Display Missing Files===
 120     missingFiles="Missing files:";
 121     #for key in "${!fileRollCall[@]}"; do echo "DEBUG:$key => ${fileRollCall[$key]}"; done
 122     for key in "${!fileRollCall[@]}"; do
 123         value="${fileRollCall[$key]}";
 124         if [ "$value" = "false" ]; then
 125             #echo "DEBUG:Missing files: $key => $value";
 126             missingFiles="$missingFiles""$key ";
 127             fileMissing="true";
 128         fi;
 129     done;
 130     if [ "$fileMissing" = "true" ]; then  # Only indicate if an app is missing.
 131         echo "$missingFiles" 1>&2;
 132     fi;
 133     unset value;
 134     #===END Display Missing Files===
 135
 136     #===BEGIN Display Missing Directories===
 137     missingDirs="Missing dirs:";
 138     #for key in "${!dirRollCall[@]}"; do echo "DEBUG:$key => ${dirRollCall[$key]}"; done
 139     for key in "${!dirRollCall[@]}"; do
 140         value="${dirRollCall[$key]}";
 141         if [ "$value" = "false" ]; then
 142             #echo "DEBUG:Missing dirs: $key => $value";
 143             missingDirs="$missingDirs""$key ";
 144             dirMissing="true";
 145         fi;
 146     done;
 147     if [ "$dirMissing" = "true" ]; then  # Only indicate if an dir is missing.
 148         echo "$missingDirs" 1>&2;
 149     fi;
 150     unset value;
 151     #===END Display Missing Directories===
 152
 153     #==END Display errors==
 154 } # Display missing apps, files, dirs
 155
 156 #===END Declare local script functions===
 157 #==END Define script parameters==
 158
 159 #==BEGIN sample code==
 160 if checkapp cat; then echo "cat found."; fi;
 161 if checkapp gpg; then echo "gpg found."; fi;
 162 if checkapp emaaaacs; then echo "emaaaacs found."; fi;
 163 sleep 1;
 164 displayMissing;
 165 #==END sample code==
 166
 167 # Author: Steven Baltaktei Sandoval
 168 # License: GPLv3+