2 # Desc: Checks that apps, files, or dirs exist.
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===
11 #===BEGIN Declare local script functions===
13 # Desc: If arg is a command, save result in assoc array 'appRollCall'
14 # Usage: checkapp arg1 arg2 arg3 ...
16 # Input: global assoc. array 'appRollCall'
17 # Output: adds/updates key(value) to global assoc array 'appRollCall'
23 if command -v "$arg" 1>/dev
/null
2>&1; then # Check if arg is a valid command
24 appRollCall
[$arg]="true";
25 if ! [ "$returnState" = "false" ]; then returnState
="true"; fi;
27 appRollCall
[$arg]="false"; returnState
="false";
31 #===Determine function return code===
32 if [ "$returnState" = "true" ]; then
37 } # Check that app exists
39 # Desc: If arg is a file path, save result in assoc array 'fileRollCall'
40 # Usage: checkfile arg1 arg2 arg3 ...
42 # Input: global assoc. array 'fileRollCall'
43 # Output: adds/updates key(value) to global assoc array 'fileRollCall';
44 # Output: returns 0 if app found, 1 otherwise
50 if [ -f "$arg" ]; then
51 fileRollCall
["$arg"]="true";
52 if ! [ "$returnState" = "false" ]; then returnState
="true"; fi;
54 fileRollCall
["$arg"]="false"; returnState
="false";
58 #===Determine function return code===
59 if [ "$returnState" = "true" ]; then
64 } # Check that file exists
66 # Desc: If arg is a dir path, save result in assoc array 'dirRollCall'
67 # Usage: checkdir arg1 arg2 arg3 ...
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
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
83 dirRollCall
["$arg"]="false"; returnState
="false";
87 #===Determine function return code===
88 if [ "$returnState" = "true" ]; then
93 } # Check that dir exists
95 # Desc: Displays missing apps, files, and dirs
96 # Usage: displayMissing
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
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""$key ";
117 if [ "$appMissing" = "true" ]; then # Only indicate if an app is missing.
118 echo "$missingApps" 1>&2;
121 #===END Display Missing Apps===
123 #===BEGIN Display Missing Files===
124 missingFiles
="Missing files:";
125 #for key in "${!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""$key ";
134 if [ "$fileMissing" = "true" ]; then # Only indicate if an app is missing.
135 echo "$missingFiles" 1>&2;
138 #===END Display Missing Files===
140 #===BEGIN Display Missing Directories===
141 missingDirs
="Missing dirs:";
142 #for key in "${!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""$key ";
151 if [ "$dirMissing" = "true" ]; then # Only indicate if an dir is missing.
152 echo "$missingDirs" 1>&2;
155 #===END Display Missing Directories===
157 #==END Display errors==
158 #==BEGIN Determine function return code===
159 if [ "$appMissing" == "true" ] ||
[ "$fileMissing" == "true" ] ||
[ "$dirMissing" == "true" ]; then
164 #==END Determine function return code===
165 } # Display missing apps, files, dirs
167 #===END Declare local script functions===
168 #==END Define script parameters==
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...";
177 if checkapp emaaaacs
; then echo "emaaaacs found."; fi;
179 if ! displayMissing
1>/dev
/null
2>&1; then
180 echo "Something is missing!";
185 # Author: Steven Baltaktei Sandoval