From c8d306dc6131b62025514dd2a0811157fc1373ee Mon Sep 17 00:00:00 2001
From: Michael Rodin <rodinmi@corvinianum.de>
Date: Tue, 29 Nov 2022 10:54:21 +0100
Subject: [PATCH] added function to add and remove specific tags from an entry

---
 image-index | 45 ++++++++++++++++++++++++++++++++++++---------
 1 file changed, 36 insertions(+), 9 deletions(-)

diff --git a/image-index b/image-index
index fac9754..49db85d 100755
--- a/image-index
+++ b/image-index
@@ -246,7 +246,7 @@ class metatable(database):
         self.collist=["NAME","ALIAS","DESCRIPTION"]
         super().__init__(filepath)
 
-    def add_index(self,val,alias,randhex= ""):
+    def add_index(self,val,alias,randhex=""):
         super().add_index([val.lower() + "-" + randhex,alias,''])
 
     def check_index(self,typ):
@@ -384,14 +384,38 @@ class filestable(database):
             shutil.move("{}/{}/{}".format(ROOT_DIR,category,filename), "{}/{}/{}".format(ROOT_DIR,update,filename))
         if typ in ["TAGS"]:
             tags_list=[]
-            for tag in tags.split(","):
-                randhex=get_randhex()
-                name=ttb.get_name(tag)
-                if name != ".":
+            if update[0][0] == "+":
+                for tag in sel_list[5].split(","):
+                    tags_list.append(tag)
+                for tag in update[1:].split(","):
+                    randhex=get_randhex()
+                    name=ttb.get_name(tag)
+                    if name == ".":
+                        ttb.add_index(tag.lower(), tag, randhex)
+                        name=ttb.get_name(tag)
                     tags_list.append(name)
-                else:
-                    ttb.add_index(tag.lower(), tag, randhex)
-                    tags_list.append(ttb.get_name(tag))
+            elif update[0][0] == "-":
+                for tag in sel_list[5].split(","):
+                    success=0
+                    for i in update[1:].split(","):
+                        name=ttb.get_name(i)
+                        if name == ".":
+                            randhex=get_randhex()
+                            ttb.add_index(tag.lower(), tag)
+                            name=ttb.get_name(tag)
+                        if name == tag:
+                            success = -1
+                    if success >= 0:
+                        tags_list.append(tag)
+            else:
+                for tag in update.split(","):
+                    randhex=get_randhex()
+                    name=ttb.get_name(tag)
+                    if name != ".":
+                        tags_list.append(name)
+                    else:
+                        ttb.add_index(tag.lower(), tag, randhex)
+                        tags_list.append(ttb.get_name(tag))
             update=",".join(tags_list)
         super().update_index(typ, update, "HASH", filehash)
     
@@ -614,8 +638,11 @@ def help(args):
             print("\tPrompt:  image-index update")
             print('EXAMPLES:\nimage-index update category "New Category" -t example')
             print('image-index update Tags "Tag,Example,Test" -s https:// -a example')
-            print('image-index update title "Some new title" -g "some thing" -a an example\n')
+            print('image-index update title "Some new title" -g "some thing" -a an example')
+            print('SPECIAL EXAMPLES TAGS:\nimage-index update tags +New_tag,hello -g "some thing" (adds the tags "New_tag" and "hello")')
+            print('image-index update tags -Tag -t Example (removes the tag "Tag")\n')
     if not args:
+            print("SYNTAX: image-index <option> [args]")
             print("OPTIONS:\n\thelp:\tdisplays this text")
             print("\t\tadd one of the other options to see more info.")
             print("\tmeta:\tdisplays help for the metadata tables")