[cmd_deploy][cmd_update][parser] Added --from option to define OLD_COMMIT

[parser] --git-dir option now expects no = in front of it

src/cmd_deploy

@@ -6,13 +6,14 @@
 #   cmd_deploy - Command that deploys IMAGEIDs using deploy_imageid function
 #
 # USAGE
-#   cmd_deploy - </path/to/git/dir> </path/to/target> 
+#   cmd_deploy - </path/to/git/dir> </path/to/target> [<old git commit>] 
 #
 # }
 
 cmd_deploy() {
     local GIT_DIR="${1}"
-    local TARGET="${2}"; shift 2
+    local TARGET="${2}"
+    local OLD_COMMIT="${3}"
     local ERR=false
     local DB_FILE="${TARGET}/${_OPT_DB_FILE}"
     [[ ! -f "${DB_FILE}" ]] && return 3
@@ -23,7 +24,7 @@ cmd_deploy() {
     fi
 
     local NEW_COMMIT=$(git -C "${GIT_DIR}" rev-parse HEAD)
-    local OLD_COMMIT=$(awk 'BEGIN{FS="\t"}{if($1=="LAST_DEPLOY"){print $2}}' ${DB_FILE})
+    [[ -z "${OLD_COMMIT}" ]] && local OLD_COMMIT=$(awk 'BEGIN{FS="\t"}{if($1=="LAST_DEPLOY"){print $2}}' ${DB_FILE})
     local removableidList=($(awk 'BEGIN{FS="\t"}{if(($1=="null" || $1=="false") && $4!="null"){print $2"--"$3}}' "${DB_FILE}"))
     local deployableidList=($(awk 'BEGIN{FS="\t"}{if($1=="true" && $4=="null"){print $2}}' "${DB_FILE}" | awk '!seen[$0]++'))
     local changedidList=($(sed 's/\(.*\)\..*/\1/' <<< $(git -C "${GIT_DIR}" diff --name-only ${NEW_COMMIT} ${OLD_COMMIT}) | awk '!seen[$0]++' | grep SHA256))

src/cmd_update

@@ -6,13 +6,14 @@
 #   cmd_update - Updates database of TARGET from git HEAD to last commit hash.
 #
 # USAGE
-#   cmd_update </path/to/git/dir> </path/to/target/dir>
+#   cmd_update </path/to/git/dir> </path/to/target/dir> [<old git commit>]
 #
 # }
 
 cmd_update() {
     local GIT_DIR="${1}"
     local TARGET="${2}"
+    local OLD_COMMIT="${3}"
     local DB_FILE="${TARGET}/${_OPT_DB_FILE}"
     [[ ! -f "${DB_FILE}" ]] && return 3
     [[ ! -d "${GIT_DIR}/.git" ]] && return 2
@@ -26,7 +27,7 @@ cmd_update() {
     # Defines what imageids needs updating by determining what files has changed since last
     # update via git diff --name-only.
     local NEW_COMMIT=$(git -C "${GIT_DIR}" rev-parse HEAD)
-    local OLD_COMMIT=$(awk 'BEGIN{FS="\t"}{if($1=="LAST_UPDATE"){print $2}}' ${DB_FILE})
+    [[ -z "${OLD_COMMIT}" ]] && local OLD_COMMIT=$(awk 'BEGIN{FS="\t"}{if($1=="LAST_UPDATE"){print $2}}' ${DB_FILE})
     local imageidList=($(sed 's/\(.*\)\..*/\1/' <<< $(git -C "${GIT_DIR}" diff --name-only ${NEW_COMMIT} ${OLD_COMMIT}) | awk '!seen[$0]++' | grep SHA256))
     
     local COUNT=1

src/parser

@@ -7,7 +7,7 @@
 GIT_DIR="./"
 
 #Recursive argument parser
-while true; do
+while [[ -z "${1}" ]]; do
 	case ${1} in
 		--help)
             shift
@@ -23,16 +23,10 @@ while true; do
 		;;
 
 
-        --git-dir=*)    
-            if [ -z "${1#*=}" ]; then
-                help
-            else
-                GIT_DIR="${1#*=}"
-            fi
-
-        ;;
-		*)
-			break
+        --git-dir)    
+            shift
+            GIT_DIR="${1}"
+            shift
         ;;
 
 	esac
@@ -60,7 +54,21 @@ case "${1}" in
 
     deploy)
         shift
-        cmd_deploy "${GIT_DIR}" ${@}
+        while [[ -n "${1}" ]]; do
+            case ${1} in
+                --from)
+                    shift
+                    OLD_COMMIT=${1}
+                    shift    
+                ;;
+                
+                *)
+                    TARGET="${1}"
+                    shift
+                ;;
+            esac
+        done
+        cmd_deploy "${GIT_DIR}" "${TARGET}" "${OLD_COMMIT}"
         EXIT=$?
         [[ ${EXIT} -eq 0 ]] && echo "Deployment completed successfully"
         [[ ${EXIT} -eq 1 ]] && echo "Deployment completed with errors"
@@ -70,7 +78,22 @@ case "${1}" in
 
     update)
         shift
-        cmd_update "${GIT_DIR}" ${@}
+        while [[ -n "${1}" ]]; do
+            case ${1} in
+                --from)
+                    shift
+                    OLD_COMMIT=${1}
+                    shift
+                ;;
+
+                *)
+                    TARGET="${1}"
+                    shift
+                ;;
+            esac
+        done
+
+        cmd_update "${GIT_DIR}" "${TATGET}" "${OLD_COMMIT}"
         EXIT=$?
         [[ ${EXIT} -eq 0 ]] && echo "Update completed successfully"
         [[ ${EXIT} -eq 1 ]] && echo "Update completed with errors"