unitproc/bktemp-checkAppFileDir

   1 #!/bin/bash
   2 # Desc: Checks that apps, files, or dirs exist.
   3
   4 #==BEGIN Define script parameters==
   5 #===BEGIN Define variables===
   6 declare -Ag appRollCall # Associative array for storing app status
   7 declare -Ag fileRollCall # Associative array for storing file status
   8 declare -Ag dirRollCall # Associative array for storing dir status
   9 #===END Define variables===
  10
  11 #===BEGIN Declare local script functions===
  12 checkapp() {
  13     # Desc: If arg is a command, save result in assoc array 'appRollCall'
  14     # Usage: checkapp arg1 arg2 arg3 ...
  15     # Version: 0.1.1
  16     # Input: global assoc. array 'appRollCall'
  17     # Output: adds/updates key(value) to global assoc array 'appRollCall'
  18     # Depends: bash 5.0.3
  19     local returnState
  20
  21     #===Process Args===
  22     for arg in "$@"; do
  23         if command -v "$arg" 1>/dev/null 2>&1; then # Check if arg is a valid command
  24             appRollCall[$arg]="true";
  25             if ! [ "$returnState" = "false" ]; then returnState="true"; fi;
  26         else
  27             appRollCall[$arg]="false"; returnState="false";
  28         fi;
  29     done;
  30
  31     #===Determine function return code===
  32     if [ "$returnState" = "true" ]; then
  33         return 0;
  34     else
  35         return 1;
  36     fi;
  37 } # Check that app exists
  38 checkfile() {
  39     # Desc: If arg is a file path, save result in assoc array 'fileRollCall'
  40     # Usage: checkfile arg1 arg2 arg3 ...
  41     # Version: 0.1.1
  42     # Input: global assoc. array 'fileRollCall'
  43     # Output: adds/updates key(value) to global assoc array 'fileRollCall';
  44     # Output: returns 0 if app found, 1 otherwise
  45     # Depends: bash 5.0.3
  46     local returnState
  47
  48     #===Process Args===
  49     for arg in "$@"; do
  50         if [ -f "$arg" ]; then
  51             fileRollCall["$arg"]="true";
  52             if ! [ "$returnState" = "false" ]; then returnState="true"; fi;
  53         else
  54             fileRollCall["$arg"]="false"; returnState="false";
  55         fi;
  56     done;
  57
  58     #===Determine function return code===
  59     if [ "$returnState" = "true" ]; then
  60         return 0;
  61     else
  62         return 1;
  63     fi;
  64 } # Check that file exists
  65 checkdir() {
  66     # Desc: If arg is a dir path, save result in assoc array 'dirRollCall'
  67     # Usage: checkdir arg1 arg2 arg3 ...
  68     # Version 0.1.2
  69     # Input: global assoc. array 'dirRollCall'
  70     # Output: adds/updates key(value) to global assoc array 'dirRollCall';
  71     # Output: returns 0 if all args are dirs; 1 otherwise
  72     # Depends: Bash 5.0.3
  73     local returnState
  74
  75     #===Process Args===
  76     for arg in "$@"; do
  77         if [ -z "$arg" ]; then
  78             dirRollCall["(Unspecified Dirname(s))"]="false"; returnState="false";
  79         elif [ -d "$arg" ]; then
  80             dirRollCall["$arg"]="true";
  81             if ! [ "$returnState" = "false" ]; then returnState="true"; fi
  82         else
  83             dirRollCall["$arg"]="false"; returnState="false";
  84         fi
  85     done
  86
  87     #===Determine function return code===
  88     if [ "$returnState" = "true" ]; then
  89         return 0;
  90     else
  91         return 1;
  92     fi
  93 } # Check that dir exists
  94 displayMissing() {
  95     # Desc: Displays missing apps, files, and dirs
  96     # Usage: displayMissing
  97     # Version 1.0.0
  98     # Input: associative arrays: appRollCall, fileRollCall, dirRollCall
  99     # Output: stderr: messages indicating missing apps, file, or dirs
 100     # Output: returns exit code 0 if nothing missing; 1 otherwise
 101     # Depends: bash 5, checkAppFileDir()
 102     local missingApps value appMissing missingFiles fileMissing
 103     local missingDirs dirMissing
 104
 105     #==BEGIN Display errors==
 106     #===BEGIN Display Missing Apps===
 107     missingApps="Missing apps  :";
 108     #for key in "${!appRollCall[@]}"; do echo "DEBUG:$key => ${appRollCall[$key]}"; done
 109     for key in "${!appRollCall[@]}"; do
 110         value="${appRollCall[$key]}";
 111         if [ "$value" = "false" ]; then
 112             #echo "DEBUG:Missing apps: $key => $value";
 113             missingApps="$missingApps""$key ";
 114             appMissing="true";
 115         fi;
 116     done;
 117     if [ "$appMissing" = "true" ]; then  # Only indicate if an app is missing.
 118         echo "$missingApps" 1>&2;
 119     fi;
 120     unset value;
 121     #===END Display Missing Apps===
 122
 123     #===BEGIN Display Missing Files===
 124     missingFiles="Missing files:";
 125     #for key in "${!fileRollCall[@]}"; do echo "DEBUG:$key => ${fileRollCall[$key]}"; done
 126     for key in "${!fileRollCall[@]}"; do
 127         value="${fileRollCall[$key]}";
 128         if [ "$value" = "false" ]; then
 129             #echo "DEBUG:Missing files: $key => $value";
 130             missingFiles="$missingFiles""$key ";
 131             fileMissing="true";
 132         fi;
 133     done;
 134     if [ "$fileMissing" = "true" ]; then  # Only indicate if an app is missing.
 135         echo "$missingFiles" 1>&2;
 136     fi;
 137     unset value;
 138     #===END Display Missing Files===
 139
 140     #===BEGIN Display Missing Directories===
 141     missingDirs="Missing dirs:";
 142     #for key in "${!dirRollCall[@]}"; do echo "DEBUG:$key => ${dirRollCall[$key]}"; done
 143     for key in "${!dirRollCall[@]}"; do
 144         value="${dirRollCall[$key]}";
 145         if [ "$value" = "false" ]; then
 146             #echo "DEBUG:Missing dirs: $key => $value";
 147             missingDirs="$missingDirs""$key ";
 148             dirMissing="true";
 149         fi;
 150     done;
 151     if [ "$dirMissing" = "true" ]; then  # Only indicate if an dir is missing.
 152         echo "$missingDirs" 1>&2;
 153     fi;
 154     unset value;
 155     #===END Display Missing Directories===
 156
 157     #==END Display errors==
 158     #==BEGIN Determine function return code===
 159     if [ "$appMissing" == "true" ] || [ "$fileMissing" == "true" ] || [ "$dirMissing" == "true" ]; then
 160         return 1;
 161     else
 162         return 0;
 163     fi
 164     #==END Determine function return code===
 165 } # Display missing apps, files, dirs
 166
 167 #===END Declare local script functions===
 168 #==END Define script parameters==
 169
 170 #==BEGIN sample code==
 171 if checkapp cat; then echo "cat found."; fi;
 172 if checkapp gpg; then echo "gpg found."; fi;
 173 if displayMissing 1>/dev/null 2>&1; then
 174     echo "Nothing missing so far...";
 175 fi;
 176
 177 if checkapp emaaaacs; then echo "emaaaacs found."; fi;
 178 sleep 1;
 179 if ! displayMissing 1>/dev/null 2>&1; then
 180     echo "Something is missing!";
 181     displayMissing;
 182 fi;
 183 #==END sample code==
 184
 185 # Author: Steven Baltaktei Sandoval
 186 # License: GPLv3+