Initial commit and default settings

mkshare

@@ -0,0 +1,76 @@
+#!/bin/bash
+
+set -e
+
+BASE="$0"
+SHARE_DIR=""
+SOURCE_DIR=""
+
+compress="false"
+expire="false"
+expire_time="$(date -Iseconds -d +7days)"
+shorten="false"
+
+print_usage() {
+  echo 'usage: mkshare [-c] [-e [ISO-8601]] [-h] [-s] <file or directory>
+
+mkshare - create symlink, output sharable link and optionally set expire timer
+
+common options:
+  -h          show this help message and exit
+  -c          compress target using zip and link to zip instead
+  -e          set expire time using ISO-8601 string or default to 7 days from creation
+  -s          shorten link to a random string in root share folder
+              e.g. https://fanyx.xyz/s/DkVbDMbN4ZpSYx08
+'
+}
+
+# if no arguments given, print usage and exit
+[ $# -eq 0 ] && print_usage && exit 1
+
+# parse flags
+# c: compress
+#   use zip to compress files or directories and put link to created zip file
+# e: expire
+#   use ISO-8061 datetime string to set expiry date
+#   default expiry date is 7 days from creation
+# h: help
+#   print usage
+# s: shorten
+#   generate random string of characters using `head /dev/urandom | tr -dc A-Za-z0-9 | head -c16`
+
+while getopts ':cehs' flag; do
+  case "$flag" in
+    h) print_usage ;;
+    c)
+      compress="true"
+      ;;
+    e)
+      if ! [ -z "${OPTARG}" ]; then
+        # set expire time to given date
+        # fail if not iso-8601
+        if ! date -d "${OPTARG}"; then
+          exit 1
+        fi
+        expire_time="$(date -d "${OPTARG}" -Iseconds)"
+      else
+        # no expire time set
+        # default to 7 days
+        expire="true"
+      fi
+      ;;
+    s)
+      shorten="true"
+      ;;
+    ?)
+      echo "Invalid option: -${OPTARG}"
+      echo
+      print_usage
+      ;;
+  esac
+done
+
+shift $((OPTIND-1))
+
+[ "${1:-}" = "--" ] && shift
+