feat(user/get_gpgkey_from_gitlog.sh):Add checkapp()

diff --git a/user/get_gpgkey_from_gitlog.sh b/user/get_gpgkey_from_gitlog.sh
index 13c22ee30d0e8aa50b1584cdf9293c0cecda908f..b94767ef1372ed919510649417a2b0529e0ac0b5 100755 (executable)
--- a/user/get_gpgkey_from_gitlog.sh
+++ b/user/get_gpgkey_from_gitlog.sh
@@ -3,13 +3,177 @@
 # Usage: get_gpgkey_from_gitlog.sh [dir]
 # Input: arg1: directory
 # Output: stdout: newline-delimited list of 40-char GPG fingerprints
-# Version: 0.0.1
+# Version: 0.1.0
 
 declare -g buffer;
+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
 
 yell() { echo "$0: $*" >&2; } # print script path and all args to stderr
 die() { yell "$*"; exit 111; } # same as yell() but non-zero exit status
 try() { "$@" || die "cannot $*"; } # runs args as command, reports args if command fails
+checkapp() {
+    # Desc: If arg is a command, save result in assoc array 'appRollCall'
+    # Usage: checkapp arg1 arg2 arg3 ...
+    # Version: 0.1.1
+    # Input: global assoc. array 'appRollCall'
+    # Output: adds/updates key(value) to global assoc array 'appRollCall'
+    # Depends: bash 5.0.3
+    local returnState    
+
+    #===Process Args===
+    for arg in "$@"; 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() {
+    if checkapp git grep; then displayMissing; die "FATAL:Missing apps."; fi;
+    if ! ( echo "foo" | sort -u ); then die "FATAL:Incompatible version:sort"; fi;
+    return 0;
+}; # check for available commands
 check_args() {
     # Desc: Check arguments
     if [[ $# -ne 1 ]]; then die "FATAL:Incorrect number of arguments:$#"; fi;
@@ -20,14 +184,14 @@ fill_buffer() {
     # Input: arg1: git dir
     # Output: var: $buffer: newline-delimited list of gpg fingerprints
     pushd "$1" 1>/dev/random || die "FATAL:Failed to change directory:$1";
-    buffer="$(git log --show-signature 2>&1)";
-    yell "DEBUG:Buffer has $(wc -l < <(printf "%s" "$buffer")) lines.";
-    buffer="$(grep -E -- "^gpg:" < <( printf "%s" "$buffer" ) )";
-    yell "DEBUG:Buffer has $(wc -l < <(printf "%s" "$buffer")) lines.";
-    buffer="$(grep -Eo "([0-9A-F]){40}" < <( printf "%s" "$buffer" ) )";
-    yell "DEBUG:Buffer has $(wc -l < <(printf "%s" "$buffer")) lines.";
-    buffer="$(sort -u < <( printf "%s" "$buffer" ))";
-    yell "DEBUG:Buffer has $(wc -l < <(printf "%s" "$buffer")) lines.";
+    buffer="$(try git log --show-signature 2>&1)";
+    #yell "DEBUG:Buffer has $(wc -l < <(printf "%s" "$buffer")) lines.";
+    buffer="$(try grep -E -- "^gpg:" < <( printf "%s" "$buffer" ) )";
+    #yell "DEBUG:Buffer has $(wc -l < <(printf "%s" "$buffer")) lines.";
+    buffer="$(try grep -Eo "([0-9A-F]){40}" < <( printf "%s" "$buffer" ) )";
+    #yell "DEBUG:Buffer has $(wc -l < <(printf "%s" "$buffer")) lines.";
+    buffer="$(try sort -u < <( printf "%s" "$buffer" ))";
+    #yell "DEBUG:Buffer has $(wc -l < <(printf "%s" "$buffer")) lines.";
     popd 1>/dev/random || die "FATAL:Failed to popd.";
 }; # fill buffer with git gpg lines
 main() {