First draft

Not tested, but starts to implement required features

build.py

@@ -1,8 +1,7 @@
 import os
 import os.path as osp
 import datetime
-from util import no_parents
-from util import get_drives
+from util import no_parents,get_drives
 def build(after,*starts):
     if isinstance(after,datetime.datetime):
         after = after.timestamp()
@@ -21,6 +20,14 @@ def build(after,*starts):
             except:
                 print('Error',root,sep= ': ')
     return ret
-if __name__ == "__main__":
-    td = datetime.datetime.today()
-    ret = build(datetime.datetime(td.year,(td.month - 1 -1)%12+1,1),r'X:\Users\Ralphie')
+    
+def build_ext(ext,paths):
+    ret = {}
+    for path in paths:
+        if path.endswith(ext):  
+            name = osp.basename(path)
+            try:
+                ret[name].append(path)
+            except KeyError:
+                ret[name] = [path]
+    return ret

ext_open.py

@@ -0,0 +1,25 @@
+import subprocess
+from binaryornot.check import is_binary
+import os
+EDITOR_PATH = 
+def edit(path,params=[]):
+    call_chain = [EDITOR_PATH] + params
+    if not is_binary(path):
+        call_chain.append(path)
+        subprocess.call(call_chain)
+
+def standalone(path,params=[],windowless =False,cwd = None):
+
+    path2windowless = os.path.join(os.path.dirname(__file__),'windowless.vbs')
+    params = list(map(os.path.expandvars,params))
+    if not cwd:
+        cwd = os.path.dirname(path)
+    else:
+        cwd = os.path.expandvars(cwd)
+    if windowless:
+        cmd = ' '.join('~{}~'.format(arg) if ' ' in arg else arg for arg in [fullpath]+params)
+        print(cmd)
+        subprocess.check_output(["cscript.exe",path2windowless,cmd,cwd])
+    else:
+
+        subprocess.Popen([fullpath]+params,cwd=cwd)

load_save.py

@@ -0,0 +1,35 @@
+import json
+from build import build, build_ext_list
+import time
+def full(ext,*starts):
+    stime = time.time()
+    paths = build(0,*starts)
+    names = build_ext_list(ext,paths)
+    return {
+        "meta" : {
+            "ext" : ext,
+            "time": stime,
+        },
+        "data": names
+        }
+
+def save(ext_map):
+    ext = ext_map["meta"]["ext"]
+    with open(f"{ext}-cache.json","w") as file:
+        json.dump(ext_map,file)
+
+def load(ext):
+    with open(f"{ext}-cache.json") as file:
+        return json.load(file)
+
+def update(ext,*starts):
+    ext_map = load(ext)
+    prev_time = ext_map["meta"]["time"]
+    stime = time.time()
+    paths = build(prev_time,*starts)
+    names = build_ext_list(ext,paths)
+    ext_map.update(names)
+    ext_map["meta"]["time"] = stime
+    save(ext_map)
+    return ext_map
+    

windowless.vbs

@@ -0,0 +1,5 @@
+Const Quote = """"
+Set Shell = CreateObject("WScript.Shell")
+Shell.CurrentDirectory = WScript.Arguments(1)
+command = Replace(WScript.Arguments(0),"~",Quote)
+Shell.Run command, 0, False