feat: add version() and usage()

Author: adhocore

tusc.sh

@@ -8,9 +8,38 @@
 # Be sure to check readme doc at https://github.com/adhocore/bash-tus
 #
 
+FULL=`readlink -f $0` # fullpath
+TUSC=`basename $0`    # name
+
 # message helpers
 line() { echo -e "\e[${3:-0};$2m$1\e[0m"; }
 error() { line "$1" 31; if [[ ! ${2:-0} -eq 0 ]]; then exit $2; fi }
 ok() { line "${1:-  Done}" 32; }
 info() { line "$1" 33; }
 comment() { line "$1" 30 1; }
+
+# show version
+version() { echo v0.0.1; }
+
+# show usage
+usage()
+{
+  cat << USAGE
+  $TUSC $(info `version`) | $(ok "(c) Jitendra Adhikari")
+  $TUSC is bash implementation of tus-client (https://tus.io).
+  $(ok Usage:)
+    $TUSC <--options>
+    $TUSC <host> <file> [algo]
+  $(ok Options:)
+    $(info "-a --algo")      $(comment "The algorigthm for key &/or checksum.")
+                   $(comment "(Eg: sha1, sha256)")
+    $(info "-f --file")      $(comment "The file to upload.")
+    $(info "-h --help")      $(comment "Show help information and usage.")
+    $(info "-H --host")      $(comment "The tus-server host where file is uploaded.")
+  $(ok Examples:)
+    $TUSC
+    $TUSC version             $(comment "# prints current version of itself")
+    $TUSC --help              $(comment "# shows this help")
+USAGE
+  exit 0
+}