From 54374d29a05c8efc1fb065c13e5b8db4d5b201de Mon Sep 17 00:00:00 2001
From: David Personette <dperson@gmail.com>
Date: Sat, 6 Jul 2019 16:27:43 -0400
Subject: [PATCH] samba.sh/README.md support additional environment variables

---
 README.md |  9 ++++++---
 samba.sh  | 12 +++++++++---
 2 files changed, 15 insertions(+), 6 deletions(-)

diff --git a/README.md b/README.md
index 06536ae..e42e7a1 100644
--- a/README.md
+++ b/README.md
@@ -72,15 +72,15 @@ OR set local storage:
 ENVIRONMENT VARIABLES
 
  * `CHARMAP` - As above, configure character mapping
- * `GLOBAL` - As above, configure a global option
+ * `GLOBAL` - As above, configure a global option (See NOTE3 below)
  * `IMPORT` - As above, import a smbpassword file
  * `NMBD` - As above, enable nmbd
  * `PERMISSIONS` - As above, set file permissions on all shares
  * `RECYCLE` - As above, disable recycle bin
- * `SHARE` - As above, setup a share
+ * `SHARE` - As above, setup a share (See NOTE3 below)
  * `SMB` - As above, disable SMB2 minimum version
  * `TZ` - Set a timezone, IE `EST5EDT`
- * `USER` - As above, setup a user
+ * `USER` - As above, setup a user (See NOTE3 below)
  * `WIDELINKS` - As above, allow access wide symbolic links
  * `WORKGROUP` - As above, set workgroup
  * `USERID` - Set the UID for the samba server
@@ -93,6 +93,9 @@ will also want to expose port 137 and 138 with `-p 137:137/udp -p 138:138/udp`.
 **NOTE2**: there are reports that `-n` and `NMBD` only work if you have the
 container configured to use the hosts network stack.
 
+**NOTE3**: optionally supports additional variables starting with the same name,
+IE `SHARE` also will work for `SHARE2`, `SHARE3`... `SHAREx`, etc.
+
 ## Examples
 
 Any of the commands can be run at creation with `docker run` or later with
diff --git a/samba.sh b/samba.sh
index 3cf93dd..3ca3604 100755
--- a/samba.sh
+++ b/samba.sh
@@ -235,13 +235,19 @@ done
 shift $(( OPTIND - 1 ))
 
 [[ "${CHARMAP:-""}" ]] && charmap "$CHARMAP"
-[[ "${GLOBAL:-""}" ]] && global "$GLOBAL"
+while read i; do
+    global "$i"
+done <$(env | awk '/^GLOBAL/ {sub (/^[^=]*=/, "", $0); print}')
 [[ "${IMPORT:-""}" ]] && import "$IMPORT"
 [[ "${PERMISSIONS:-""}" ]] && perms
 [[ "${RECYCLE:-""}" ]] && recycle
-[[ "${SHARE:-""}" ]] && eval share $(sed 's/^/"/; s/$/"/; s/;/" "/g' <<< $SHARE)
+while read i; do
+    eval share $(sed 's/^/"/; s/$/"/; s/;/" "/g' <<< $i)
+done <$(env | awk '/^SHARE/ {sub (/^[^=]*=/, "", $0); print}')
 [[ "${SMB:-""}" ]] && smb
-[[ "${USER:-""}" ]] && eval user $(sed 's/^/"/; s/$/"/; s/;/" "/g' <<< $USER)
+while read i; do
+    eval user $(sed 's/^/"/; s/$/"/; s/;/" "/g' <<< $i)
+done <$(env | awk '/^USER/ {sub (/^[^=]*=/, "", $0); print}')
 [[ "${WORKGROUP:-""}" ]] && workgroup "$WORKGROUP"
 [[ "${WIDELINKS:-""}" ]] && widelinks
 [[ "${INCLUDE:-""}" ]] && include "$INCLUDE"