Allow manually deleting watch_later entries

This commit introduces the "del" command which allows the user to delete
watch_later entries manually. Make sure to silently ignore entries that
were not found - we'll print the entire list of entries subsequently
anyway.

2 files changed, 25 insertions, 2 deletions

diff --git a/later b/later
index 3ffc645..5f7f1dc 100755
--- a/later
+++ b/later
@@ -35,6 +35,7 @@ def usage(message=""):
 
     lines.append("usage: later [options] [list]")
     lines.append("             [options] [add] item ...")
+    lines.append("             [options] del item ...")
     lines.append("options: [-u | --update-titles]")
 
     sys.exit("\n".join(lines))
@@ -228,6 +229,10 @@ def entries(title_map):
             yield WatchLaterEntry(name=name, path=entry.path, mtime=mtime)
 
 
+def hexdigest(entry):
+    return hashlib.md5(entry.encode("utf-8")).hexdigest().upper()
+
+
 def list_entries(args, title_map):
     for entry in entries(title_map):
         print(entry.format(title_map))
@@ -235,8 +240,7 @@ def list_entries(args, title_map):
 
 def add_entries(args, title_map):
     for entry in args.rest:
-        filename = hashlib.md5(entry.encode("utf-8")).hexdigest().upper()
-        path = os.path.join(watch_later_dir, filename)
+        path = os.path.join(watch_later_dir, hexdigest(entry))
 
         try:
             with open(path, "x") as handle:
@@ -247,8 +251,21 @@ def add_entries(args, title_map):
             exit(e)
 
 
+def delete_entries(args, title_map):
+    for entry in args.rest:
+        path = os.path.join(watch_later_dir, hexdigest(entry))
+
+        try:
+            os.remove(path)
+        except FileNotFoundError:
+            pass
+        except OSError as e:
+            exit(e)
+
+
 commands = {
     "add": Command("add", add_entries),
+    "del": Command("del", delete_entries),
     "list": Command("list", list_entries, implies_list=False, args=False),
 }
 
diff --git a/later.1 b/later.1
index b9f38b4..d100ea9 100644
--- a/later.1
+++ b/later.1
@@ -12,6 +12,10 @@
 .Op options
 .Op Ic add
 .Ar item ...
+.Nm
+.Op options
+.Ic del
+.Ar item ...
 .Sh DESCRIPTION
 .Nm
 is a program to manage watch_later entries as created by
@@ -34,6 +38,8 @@ The commands are as follows:
 Creates watch_later entries for the given items.
 This command is implied if it wasn't explicitly given but there are
 remaining arguments.
+.It Sy del Em item ...
+Deletes watch_later entries matching the given items.
 .It Sy list
 Lists all watch_later entries.
 This command is implied if there are no remaining arguments.