Bump version to 1.3.1

No point having a submodule for one function

.gitignore

@@ -159,6 +159,8 @@ cython_debug/
 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
 #.idea/
 
+venv
+
 # nixos-shell
 nixos.qcow2
 
@@ -166,4 +168,4 @@ nixos.qcow2
 result
 
 # test sources
-tests/**/*.item
+tests/**/*.item

Makefile

@@ -0,0 +1,18 @@
+.PHONY: *
+
+help: ## display this help
+	@awk 'BEGIN{FS = ":.*##"; printf "\033[1m\nUsage\n \033[1;92m make\033[0;36m <target>\033[0m\n"} /^[a-zA-Z0-9_-]+:.*?##/ { printf "  \033[36m%-15s\033[0m %s\n", $$1, $$2 } ' $(MAKEFILE_LIST)
+
+venv: ## link the python dev environment to ./venv
+	nix build .#pythonEnv -o venv
+
+lint: ## run linters
+	nix fmt
+	black **/*.py
+
+test: ## run pytest
+	python -m pytest
+
+reset: ## delete all items in tests/ and update each source once
+	rm -v tests/*/*.item
+	find tests -name intake.json -printf "%h\n" | cut -c7- | xargs -n 1 python -m intake update -d tests -s

README.md

@@ -31,32 +31,35 @@ intake
 {
   "action": {
     "fetch": {
-      "exe": "<absolute path to program or name on intake's PATH>",
-      "args": ["list", "of", "program", "arguments"]
+      "args": ["program name", "and", "list", "of", "arguments"]
     },
     "<action name>": {
-      "exe": "...",
       "args": "..."
     }
   },
   "env": {
     "...": "..."
   },
-  "cron": "* * * * *"
+  "cron": "* * * * *",
+  "batch": "<number>"
 }
 ```
 
-Each key under `action` defines an action that can be taken for the source. An action must contain `exe` and may contain `args`. A source must have a `fetch` action.
+Each key under `action` defines an action that can be taken for the source. A source must at least have a `fetch` action. If an action named `on_create` is defined for the source, it is executed once for an item when that item is created, that is, the first time the item is returned from the source.
 
-Each key under `env` defines an environment variable that will be set when actions are executed.
+Each key under `env` defines an environment variable that will be set when `fetch` or other actions are executed.
 
 If `cron` is present, it must define a crontab schedule. Intake will automatically create crontab entries to update each source according to its cron schedule.
 
+`batch` may be a number or string of a number. If it is present, items created by the source will be batched via `tts` so that all items created in a single 24-hour window become visible at the same time. Items created with a longer `tts` will keep their `tts`.
+
+The batch window is computed from midnight to midnight UTC, offset by the value of `batch` (in seconds).
+
 ## Interface for source programs
 
 Intake interacts with sources by executing the actions defined in the source's `intake.json`. The `fetch` action is required and used to check for new feed items when `intake update` is executed.
 
-To execute an action, intake executes the `exe` program for the action with the corresponding `args` (if present) as arguments. The process's working directory is set to the source's folder, i.e. the folder containing `intake.json`. The process's environment is as follows:
+To execute an action, intake executes the command given by `args`. The process's working directory is set to the source's folder, i.e. the folder containing `intake.json`. The process's environment is as follows:
 
 * intake's environment is inherited.
 * `STATE_PATH` is set to the absolute path of `state`.

default.nix

@@ -1,10 +1,9 @@
-(import
-  (
-    let lock = builtins.fromJSON (builtins.readFile ./flake.lock); in
-    fetchTarball {
-      url = "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
-      sha256 = lock.nodes.flake-compat.locked.narHash;
-    }
-  )
-  { src = ./.; }
-).defaultNix
+(import (
+  let
+    lock = builtins.fromJSON (builtins.readFile ./flake.lock);
+  in
+  fetchTarball {
+    url = "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
+    sha256 = lock.nodes.flake-compat.locked.narHash;
+  }
+) { src = ./.; }).defaultNix

demo/default.nix

@@ -14,7 +14,7 @@
   users.users.bob = {
     isNormalUser = true;
     password = "beta";
-    uid  = 1001;
+    uid = 1001;
     packages = [ pkgs.intake ];
   };
 
@@ -26,11 +26,13 @@
   };
 
   # Expose the vm's intake revproxy at host port 5234
-  virtualisation.forwardPorts = [{
-    from = "host";
-    host.port = 5234;
-    guest.port = 8080;
-  }];
+  virtualisation.forwardPorts = [
+    {
+      from = "host";
+      host.port = 5234;
+      guest.port = 8080;
+    }
+  ];
 
   # Mount the demo content for both users
   nixos-shell.mounts = {
@@ -47,20 +49,20 @@
 
   # Create an activation script that copies and chowns the demo content
   # chmod 777 because the users may not exist when the activation script runs
-  system.activationScripts = 
-  let
-    userSetup = name: uid: ''
-      ${pkgs.coreutils}/bin/mkdir -p /home/${name}/.local/share/intake
-      ${pkgs.coreutils}/bin/cp -r /mnt/${name}/* /home/${name}/.local/share/intake/
-      ${pkgs.coreutils}/bin/chown -R ${uid} /home/${name}
-      ${pkgs.findutils}/bin/find /home/${name} -type d -exec ${pkgs.coreutils}/bin/chmod 755 {} \;
-      ${pkgs.findutils}/bin/find /home/${name} -type f -exec ${pkgs.coreutils}/bin/chmod 644 {} \;
-    '';
-  in
-  {
-    aliceSetup = userSetup "alice" "1000";
-    bobSetup = userSetup "bob" "1001";
-  };
+  system.activationScripts =
+    let
+      userSetup = name: uid: ''
+        ${pkgs.coreutils}/bin/mkdir -p /home/${name}/.local/share/intake
+        ${pkgs.coreutils}/bin/cp -r /mnt/${name}/* /home/${name}/.local/share/intake/
+        ${pkgs.coreutils}/bin/chown -R ${uid} /home/${name}
+        ${pkgs.findutils}/bin/find /home/${name} -type d -exec ${pkgs.coreutils}/bin/chmod 755 {} \;
+        ${pkgs.findutils}/bin/find /home/${name} -type f -exec ${pkgs.coreutils}/bin/chmod 644 {} \;
+      '';
+    in
+    {
+      aliceSetup = userSetup "alice" "1000";
+      bobSetup = userSetup "bob" "1001";
+    };
 
   # Put the demo sources on the global PATH
   environment.variables.PATH = "/mnt/sources";

flake.nix

@@ -13,61 +13,90 @@
     nixos-shell.inputs.nixpkgs.follows = "nixpkgs";
   };
 
-  outputs = { self, nixpkgs, flake-compat, nixos-shell }:
-  let
-    inherit (nixpkgs.lib) makeOverridable nixosSystem;
-    system = "x86_64-linux";
-  in {
-    packages.${system} = let
-      pkgs = (import nixpkgs {
+  outputs =
+    {
+      self,
+      nixpkgs,
+      flake-compat,
+      nixos-shell,
+    }:
+    let
+      inherit (nixpkgs.lib) makeOverridable nixosSystem;
+      system = "x86_64-linux";
+      pkgs = nixpkgs.legacyPackages.${system};
+      pythonEnv = pkgs.python3.withPackages (
+        pypkgs: with pypkgs; [
+          flask
+          black
+          pytest
+        ]
+      );
+    in
+    {
+      formatter.${system} = nixpkgs.legacyPackages.${system}.nixfmt-rfc-style;
+
+      packages.${system} =
+        let
+          pkgs = (
+            import nixpkgs {
+              inherit system;
+              overlays = [ self.overlays.default ];
+            }
+          );
+        in
+        {
+          default = self.packages.${system}.intake;
+          inherit (pkgs) intake;
+          inherit pythonEnv;
+        };
+
+      devShells.${system} = {
+        default = pkgs.mkShell {
+          packages = [
+            pythonEnv
+            pkgs.gnumake
+            pkgs.nixos-shell
+            # We only take this dependency for htpasswd, which is a little unfortunate
+            pkgs.apacheHttpd
+          ];
+          shellHook = ''
+            PS1="(develop) $PS1"
+          '';
+        };
+      };
+
+      overlays.default = final: prev: {
+        intake = final.python3Packages.buildPythonPackage {
+          name = "intake";
+          src = builtins.path {
+            path = ./.;
+            name = "intake";
+          };
+          format = "pyproject";
+          propagatedBuildInputs = with final.python3Packages; [
+            flask
+            setuptools
+          ];
+        };
+      };
+
+      templates.source = {
+        path = builtins.path {
+          path = ./template;
+          name = "source";
+        };
+        description = "A basic intake source config";
+      };
+
+      nixosModules.default = import ./module.nix self;
+
+      nixosConfigurations."demo" = makeOverridable nixosSystem {
         inherit system;
-        overlays = [ self.overlays.default ];
-      });
-    in {
-      default = self.packages.${system}.intake;
-      inherit (pkgs) intake;
-    };
-
-    devShells.${system} = {
-      default = let
-        pkgs = nixpkgs.legacyPackages.${system};
-        pythonEnv = pkgs.python3.withPackages (pypkgs: with pypkgs; [ flask black pytest ]);
-      in pkgs.mkShell {
-        packages = [
-          pythonEnv
-          pkgs.nixos-shell
-          # We only take this dependency for htpasswd, which is a little unfortunate
-          pkgs.apacheHttpd
+        modules = [
+          nixos-shell.nixosModules.nixos-shell
+          self.nixosModules.default
+          ./demo
         ];
-        shellHook = ''
-          PS1="(develop) $PS1"
-        '';
       };
     };
-
-    overlays.default = final: prev: {
-      intake = final.python3Packages.buildPythonPackage {
-        name = "intake";
-        src = builtins.path { path = ./.; name = "intake"; };
-        format = "pyproject";
-        propagatedBuildInputs = with final.python3Packages; [ flask setuptools ];
-      };
-    };
-
-    templates.source = {
-      path = builtins.path { path = ./template; name = "source"; };
-      description = "A basic intake source config";
-    };
-
-    nixosModules.default = import ./module.nix self;
-
-    nixosConfigurations."demo" = makeOverridable nixosSystem {
-      inherit system;
-      modules = [
-        nixos-shell.nixosModules.nixos-shell
-        self.nixosModules.default
-        ./demo
-      ];
-    };
-  };
 }

intake/app.py

@@ -18,9 +18,16 @@ from flask import (
     current_app,
 )
 
-from intake.core import intake_data_dir
 from intake.crontab import update_crontab_entries
-from intake.source import LocalSource, execute_action, Item
+from intake.source import (
+    LocalSource,
+    execute_action,
+    Item,
+    fetch_items,
+    update_items,
+    intake_data_dir,
+)
+from intake.types import InvalidConfigException, SourceUpdateException
 
 # Globals
 app = Flask(__name__)
@@ -115,10 +122,23 @@ def root():
     if channels_config_path.exists():
         channels = json.loads(channels_config_path.read_text(encoding="utf8"))
 
+    channel_counts = {
+        channel: len(
+            [
+                item
+                for source in sources
+                for item in LocalSource(data_path, source).get_all_items()
+                if not item.is_hidden
+            ]
+        )
+        for channel, sources in channels.items()
+    }
+
     return render_template(
         "home.jinja2",
         sources=sources,
         channels=channels,
+        channel_counts=channel_counts,
     )
 
 
@@ -306,13 +326,15 @@ def _parse_source_config(config_str: str):
     if "fetch" not in action:
         return ("No fetch action defined", {})
     fetch = action["fetch"]
-    if "exe" not in fetch:
+    if "exe" not in fetch and not fetch.get("args"):
         return ("No fetch exe", {})
     config = {"action": parsed["action"]}
     if "env" in parsed:
         config["env"] = parsed["env"]
     if "cron" in parsed:
         config["cron"] = parsed["cron"]
+    if "batch" in parsed:
+        config["batch"] = parsed["batch"]
     return (None, config)
 
 
@@ -368,6 +390,24 @@ def _parse_channels_config(config_str: str):
     return (None, parsed)
 
 
+@app.post("/fetch/<string:source_name>")
+@auth_check
+def fetch(source_name: str):
+    data_path: Path = current_app.config["INTAKE_DATA"]
+    source = LocalSource(data_path, source_name)
+
+    try:
+        items = fetch_items(source)
+        update_items(source, items)
+        titles = "\n".join(f"<li>{item.display_title}</li>" for item in items)
+        source_url = url_for("source_feed", name=source_name)
+        return f'Update returned {len(items)} items:<ul>{titles}</ul><p><a href="{source_url}">{source_name}</a></p>'
+    except InvalidConfigException as ex:
+        abort(500, f"Could not fetch {source_name}:\n{ex}")
+    except SourceUpdateException as ex:
+        abort(500, f"Error updating source {source_name}:\n{ex}")
+
+
 @app.post("/add")
 @auth_check
 def add_item():
@@ -379,7 +419,7 @@ def add_item():
     config_path = source_path / "intake.json"
     if not config_path.exists():
         config_path.write_text(
-            json.dumps({"action": {"fetch": {"exe": "true"}}}, indent=2)
+            json.dumps({"action": {"fetch": {"args": ["true"]}}}, indent=2)
         )
     source = LocalSource(source_path.parent, source_path.name)
 

intake/cli.py

@@ -10,9 +10,14 @@ import pwd
 import subprocess
 import sys
 
-from intake.core import intake_data_dir
 from intake.crontab import update_crontab_entries
-from intake.source import fetch_items, LocalSource, update_items, execute_action
+from intake.source import (
+    fetch_items,
+    LocalSource,
+    update_items,
+    execute_action,
+    intake_data_dir,
+)
 from intake.types import InvalidConfigException, SourceUpdateException
 
 
@@ -52,7 +57,6 @@ def cmd_edit(cmd_args):
                 {
                     "action": {
                         "fetch": {
-                            "exe": "",
                             "args": [],
                         },
                     },

intake/core.py

@@ -1,12 +0,0 @@
-from pathlib import Path
-import os
-
-
-def intake_data_dir() -> Path:
-    if intake_data := os.environ.get("INTAKE_DATA"):
-        return Path(intake_data)
-    if xdg_data_home := os.environ.get("XDG_DATA_HOME"):
-        return Path(xdg_data_home) / "intake"
-    if home := os.environ.get("HOME"):
-        return Path(home) / ".local" / "share" / "intake"
-    raise Exception("No intake data directory defined")

intake/crontab.py

@@ -1,5 +1,6 @@
 from pathlib import Path
 import os
+import shutil
 import subprocess
 import sys
 
@@ -28,15 +29,13 @@ def update_crontab_entries(data_path: Path):
     Update the intake-managed section of the user's crontab.
     """
     # If there is no crontab command available, quit early.
-    cmd = ("command", "-v", "crontab")
-    print("Executing", *cmd, file=sys.stderr)
-    crontab_exists = subprocess.run(cmd, shell=True)
-    if crontab_exists.returncode:
-        print("Could not update crontab", file=sys.stderr)
+    crontab = shutil.which("crontab")
+    if not crontab:
+        print("No crontab found, skipping", file=sys.stderr)
         return
 
     # Get the current crontab
-    cmd = ["crontab", "-e"]
+    cmd = [crontab, "-e"]
     print("Executing", *cmd, file=sys.stderr)
     get_crontab = subprocess.run(
         cmd,
@@ -77,7 +76,7 @@ def update_crontab_entries(data_path: Path):
     print("Updating", len(new_crontab_lines) - 2, "crontab entries", file=sys.stderr)
 
     # Save the updated crontab
-    cmd = ["crontab", "-"]
+    cmd = [crontab, "-"]
     print("Executing", *cmd, file=sys.stderr)
     new_crontab: bytes = "\n".join(new_crontab_lines).encode("utf8")
     save_crontab = subprocess.Popen(

intake/source.py

@@ -3,7 +3,7 @@ from pathlib import Path
 from subprocess import Popen, PIPE, TimeoutExpired
 from threading import Thread
 from time import time as current_time
-from typing import List
+from typing import Generator
 import json
 import os
 import os.path
@@ -12,6 +12,16 @@ import sys
 from intake.types import InvalidConfigException, SourceUpdateException
 
 
+def intake_data_dir() -> Path:
+    if intake_data := os.environ.get("INTAKE_DATA"):
+        return Path(intake_data)
+    if xdg_data_home := os.environ.get("XDG_DATA_HOME"):
+        return Path(xdg_data_home) / "intake"
+    if home := os.environ.get("HOME"):
+        return Path(home) / ".local" / "share" / "intake"
+    raise Exception("No intake data directory defined")
+
+
 class Item:
     """
     A wrapper for an item object.
@@ -71,26 +81,31 @@ class Item:
         # The time-to-live fields protects an item from removal until expiry.
         # This is mainly used to avoid old items resurfacing when their source
         # cannot guarantee monotonocity.
-        if "ttl" in self._item:
-            ttl_date = self._item["created"] + self._item["ttl"]
-            if ttl_date > current_time():
-                return False
+        if "ttl" in self._item and self.ttl_at > current_time():
+            return False
 
         # The time-to-die field puts a maximum lifespan on an item, removing it
         # even if it is active.
-        if "ttd" in self._item:
-            ttd_date = self._item["created"] + self._item["ttd"]
-            if ttd_date < current_time():
-                return True
+        if "ttd" in self._item and self.ttd_at < current_time():
+            return True
 
         return not self._item["active"]
 
+    @property
+    def tts_at(self):
+        return self._item["created"] + self._item.get("tts", 0)
+
+    @property
+    def ttl_at(self):
+        return self._item["created"] + self._item.get("ttl", 0)
+
+    @property
+    def ttd_at(self):
+        return self._item["created"] + self._item.get("ttd", 0)
+
     @property
     def before_tts(self):
-        return (
-            "tts" in self._item
-            and current_time() < self._item["created"] + self._item["tts"]
-        )
+        return "tts" in self._item and current_time() < self.tts_at
 
     @property
     def is_hidden(self):
@@ -158,7 +173,7 @@ class LocalSource:
     def get_item_path(self, item_id: dict) -> Path:
         return self.source_path / f"{item_id}.item"
 
-    def get_item_ids(self) -> List[str]:
+    def get_item_ids(self) -> list[str]:
         return [
             filepath.name[:-5]
             for filepath in self.source_path.iterdir()
@@ -183,7 +198,7 @@ class LocalSource:
     def delete_item(self, item_id) -> None:
         os.remove(self.get_item_path(item_id))
 
-    def get_all_items(self) -> List[Item]:
+    def get_all_items(self) -> Generator[Item, None, None]:
         for filepath in self.source_path.iterdir():
             if filepath.name.endswith(".item"):
                 yield Item(self, json.loads(filepath.read_text(encoding="utf8")))
@@ -218,7 +233,7 @@ def _read_stderr(process: Popen) -> None:
 
 def _execute_source_action(
     source: LocalSource, action: str, input: str, timeout: timedelta
-) -> List[str]:
+) -> list[str]:
     """
     Execute the action from a given source. If stdin is specified, pass it
     along to the process. Returns lines from stdout.
@@ -229,10 +244,13 @@ def _execute_source_action(
 
     if not action_cfg:
         raise InvalidConfigException(f"No such action {action}")
-    if "exe" not in action_cfg:
+
+    exe = [action_cfg["exe"]] if "exe" in action_cfg else []
+    command = exe + action_cfg.get("args", [])
+
+    if not command:
         raise InvalidConfigException(f"No exe for action {action}")
 
-    command = [action_cfg["exe"], *action_cfg.get("args", [])]
     config_env = {key: str(value) for key, value in config.get("env", {}).items()}
     env = {
         **os.environ.copy(),
@@ -283,13 +301,13 @@ def _execute_source_action(
     return output
 
 
-def fetch_items(source: LocalSource, timeout: int = 60) -> List[Item]:
+def fetch_items(source: LocalSource, timeout: int = 60) -> list[Item]:
     """
     Execute the feed source and return the current feed items.
     Returns a list of feed items on success.
     Throws SourceUpdateException if the feed source update failed.
     """
-    items: List[Item] = []
+    items: list[Item] = []
 
     output = _execute_source_action(source, "fetch", None, timedelta(timeout))
 
@@ -325,29 +343,54 @@ def execute_action(
         raise SourceUpdateException("invalid json")
 
 
-def update_items(source: LocalSource, fetched_items: List[Item]):
+def update_items(source: LocalSource, fetched_items: list[Item]):
     """
     Update the source with a batch of new items, doing creations, updates, and
     deletions as necessary.
     """
+    config = source.get_config()
+
     # Get a list of item ids that already existed for this source.
     prior_ids = source.get_item_ids()
     print(f"Found {len(prior_ids)} prior items", file=sys.stderr)
 
     # Determine which items are new and which are updates.
-    new_items: List[Item] = []
-    upd_items: List[Item] = []
+    new_items: list[Item] = []
+    upd_items: list[Item] = []
     for item in fetched_items:
         if source.item_exists(item["id"]):
             upd_items.append(item)
         else:
             new_items.append(item)
 
+    # If the source is batched, set the tts on new items to at least the batch tts
+    if "batch" in config:
+        try:
+            batch_adj = int(config["batch"])
+            now = current_time() - batch_adj
+            batch_start = now - (now % 86400)
+            batch_end = batch_start + 86400 + batch_adj
+            for item in new_items:
+                min_tts = batch_end - item["created"]
+                item["tts"] = min(min_tts, item.get("tts", min_tts))
+        except:
+            pass
+
     # Write all the new items to the source directory.
     for item in new_items:
-        # TODO: support on-create trigger
         source.save_item(item)
 
+    # If the source has an on-create trigger, run it for new items
+    if "on_create" in config.get("action", {}):
+        for item in new_items:
+            try:
+                execute_action(source, item["id"], "on_create")
+            except Exception as ex:
+                print(
+                    f"on_create failed for {source.source_name}/{item['id']}:\n{ex}",
+                    file=sys.stderr,
+                )
+
     # Update the other items using the fetched items' values.
     for upd_item in upd_items:
         old_item = source.get_item(upd_item["id"])

intake/templates/feed.jinja2

@@ -174,11 +174,13 @@ var doAction = function (source, itemid, action) {
 
 	{# source/id/created footer line #}
 	{% if item.source or item.id or item.created %}
-	<span class="item-info" title="{{ 'Tags: {}'.format(', '.join(item.tags)) }}">
+	<span class="item-info" title="{% if item.tags %}{{ 'Tags: {}'.format(', '.join(item.tags)) }}{% else %}No tags{% endif %}">
 	{% if item.source %}{{item.source}}{% endif %}
 	{% if item.id %}{{item.id}}{% endif %}
 	{% if item.created %}{{item.created|datetimeformat}}{% endif %}
-	{% if item.ttl %}L{% endif %}{% if item.ttd %}D{% endif %}{% if item.tts %}S{% endif %}
+	{% if item.ttl %}<span title="TTL {{item.ttl_at|datetimeformat}}">[L]</span>{% endif %}
+	{% if item.ttd %}<span title="TTD {{item.ttd_at|datetimeformat}}">[D]</span>{% endif %}
+	{% if item.tts %}<span title="TTS {{item.tts_at|datetimeformat}}">[S]</span>{% endif %}
 	</span>
 	{% endif %}
 

intake/templates/home.jinja2

@@ -34,6 +34,12 @@ summary:focus {
 	width: 100%;
 	resize: vertical;
 }
+.intake-sources td {
+	padding-block: 0.4em;
+}
+.intake-sources form {
+	margin: 0
+}
 </style>
 </head>
 <body>
@@ -46,7 +52,13 @@ summary:focus {
 <p>No channels found.</p>
 {% else %}
 {% for channel in channels %}
-<p><a href="{{ url_for('channel_feed', name=channel) }}">{{ channel }}</a></p>
+<p><a href="{{ url_for('channel_feed', name=channel) }}">
+{%- if channel_counts[channel] -%}
+({{ channel_counts[channel] }}) {{ channel }}
+{%- else -%}
+{{ channel }}
+{%- endif -%}
+</a></p>
 {% endfor %}
 {% endif %}
 <p><a href="{{ url_for('channels_edit') }}">Edit channels</a></p>
@@ -59,17 +71,22 @@ summary:focus {
 {% if not sources %}
 <p>No sources found.</p>
 {% else %}
+<table class="intake-sources">
 {% for source in sources %}
-<p>
+<tr>
+<td>
 {%- for channel, srcs in channels|items -%}
 {%- if source.source_name in srcs -%}
 ^
 {%- endif -%}
 {%- endfor -%}
-<a href="{{ url_for('source_feed', name=source.source_name) }}">{{ source.source_name|safe }}</a>
-(<a href="{{ url_for('source_edit', name=source.source_name) }}">edit</a>)
-</p>
+</td>
+<td><form id="{{ source.source_name }}"><button type="submit" formmethod=post formaction="{{ url_for('fetch', source_name=source.source_name) }}" />fetch</button></form></td>
+<td>(<a href="{{ url_for('source_edit', name=source.source_name) }}">edit</a>)</td>
+<td><a href="{{ url_for('source_feed', name=source.source_name) }}">{{ source.source_name|safe }}</a></td>
+</tr>
 {% endfor %}
+</table>
 {% endif %}
 </details>
 </article>

module.nix

@@ -1,153 +1,179 @@
-flake: { config, lib, pkgs, ... }:
+flake:
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
 
 let
-  inherit (lib) filterAttrs foldl imap1 mapAttrsToList mkEnableOption mkIf mkMerge mkOption mkPackageOption types;
+  inherit (lib)
+    filterAttrs
+    foldl
+    imap1
+    mapAttrsToList
+    mkEnableOption
+    mkIf
+    mkMerge
+    mkOption
+    mkPackageOption
+    types
+    ;
   intakeCfg = config.services.intake;
-in {
+in
+{
   options = {
     services.intake = {
       listen.addr = mkOption {
         type = types.str;
         default = "0.0.0.0";
-        description = "The listen address for the entry point to intake services. This endpoint will redirect to a "
-        "local port based on the request's HTTP Basic Auth credentials.";
+        description = "The listen address for the entry point to intake services. This endpoint will redirect to a local port based on the request's HTTP Basic Auth credentials.";
       };
 
       listen.port = mkOption {
         type = types.port;
         default = 80;
-        description = "The listen port for the entry point to intake services. This endpoint will redirect to a local "
-        "port based on the request's HTTP Basic Auth credentials.";
+        description = "The listen port for the entry point to intake services. This endpoint will redirect to a local port based on the request's HTTP Basic Auth credentials.";
       };
 
-      package = mkPackageOption pkgs "intake" {};
+      package = mkPackageOption pkgs "intake" { };
 
       internalPortStart = mkOption {
         type = types.port;
         default = 24130;
-        description = "The first port to use for internal service endpoints. A number of ports will be continguously "
-        "allocated equal to the number of users with enabled intake services.";
+        description = "The first port to use for internal service endpoints. A number of ports will be continguously allocated equal to the number of users with enabled intake services.";
       };
 
       extraPackages = mkOption {
         type = types.listOf types.package;
-        default = [];
+        default = [ ];
         description = "Extra packages available to all enabled users and their intake services.";
       };
 
       users = mkOption {
         description = "User intake service definitions.";
-        default = {};
-        type = types.attrsOf (types.submodule {
-          options = {
-            enable = mkEnableOption "intake, a personal feed aggregator.";
+        default = { };
+        type = types.attrsOf (
+          types.submodule {
+            options = {
+              enable = mkEnableOption "intake, a personal feed aggregator.";
 
-            extraPackages = mkOption {
-              type = types.listOf types.package;
-              default = [];
-              description = "Extra packages available to this user and their intake service.";
+              extraPackages = mkOption {
+                type = types.listOf types.package;
+                default = [ ];
+                description = "Extra packages available to this user and their intake service.";
+              };
             };
-          };
-        });
+          }
+        );
       };
     };
   };
 
   config =
-  let
-    # Define the intake package and a python environment to run it from
-    intake = intakeCfg.package;
-    pythonEnv = pkgs.python3.withPackages (pypkgs: [ intake ]);
-
-    # Assign each user an internal port for their personal intake instance
-    enabledUsers = filterAttrs (userName: userCfg: userCfg.enable) intakeCfg.users;
-    enabledUserNames = mapAttrsToList (userName: userCfg: userName) enabledUsers;
-    userPortList = imap1 (i: userName: { ${userName} = i + intakeCfg.internalPortStart; }) enabledUserNames;
-    userPort = foldl (acc: val: acc // val) {} userPortList;
-
-    # To avoid polluting PATH with httpd programs, define an htpasswd wrapper
-    htpasswdWrapper = pkgs.writeShellScriptBin "htpasswd" ''
-      ${pkgs.apacheHttpd}/bin/htpasswd $@
-    '';
-
-    # File locations
-    intakeDir = "/etc/intake";
-    intakePwd = "${intakeDir}/htpasswd";
-  in {
-    # Apply the overlay so intake is included in pkgs.
-    nixpkgs.overlays = [ flake.overlays.default ];
-
-    # Define a user group for access to the htpasswd file. nginx needs to be able to read it.
-    users.groups.intake.members = mkIf (enabledUsers != {}) (enabledUserNames ++ [ "nginx" ]);
-
-    # Define an activation script that ensures that the htpasswd file exists.
-    system.activationScripts.etc-intake = ''
-      if [ ! -e ${intakeDir} ]; then
-        ${pkgs.coreutils}/bin/mkdir -p ${intakeDir};
-      fi
-      ${pkgs.coreutils}/bin/chown root:root ${intakeDir}
-      ${pkgs.coreutils}/bin/chmod 755 ${intakeDir}
-      if [ ! -e ${intakePwd} ]; then
-        ${pkgs.coreutils}/bin/touch ${intakePwd}
-      fi
-      ${pkgs.coreutils}/bin/chown root:intake ${intakePwd}
-      ${pkgs.coreutils}/bin/chmod 660 ${intakePwd}
-    '';
-
-    # Give every intake user the htpasswd wrapper, the shared packages, and the user-specific packages.
-    users.users =
     let
-      addPackagesToUser = userName: {
-        ${userName}.packages =
-          [ htpasswdWrapper intake ]
-          ++ intakeCfg.extraPackages
-          ++ intakeCfg.users.${userName}.extraPackages;
-      };
-    in mkMerge (map addPackagesToUser enabledUserNames);
+      # Define the intake package and a python environment to run it from
+      intake = intakeCfg.package;
+      pythonEnv = pkgs.python3.withPackages (pypkgs: [ intake ]);
 
-    # Enable cron
-    services.cron.enable = true;
+      # Assign each user an internal port for their personal intake instance
+      enabledUsers = filterAttrs (userName: userCfg: userCfg.enable) intakeCfg.users;
+      enabledUserNames = mapAttrsToList (userName: userCfg: userName) enabledUsers;
+      userPortList = imap1 (i: userName: {
+        ${userName} = i + intakeCfg.internalPortStart;
+      }) enabledUserNames;
+      userPort = foldl (acc: val: acc // val) { } userPortList;
 
-    # Define a user service for each configured user
-    systemd.services =
-    let
-      runScript = userName: pkgs.writeShellScript "intake-run.sh" ''
-        # Add the setuid wrapper directory so `crontab` is accessible
-        export PATH="${config.security.wrapperDir}:$PATH"
-        ${pythonEnv}/bin/intake run -d /home/${userName}/.local/share/intake --port ${toString userPort.${userName}}
+      # To avoid polluting PATH with httpd programs, define an htpasswd wrapper
+      htpasswdWrapper = pkgs.writeShellScriptBin "htpasswd" ''
+        ${pkgs.apacheHttpd}/bin/htpasswd $@
       '';
-      # systemd service definition for a single user, given `services.intake.users.userName` = `userCfg`
-      userServiceConfig = userName: userCfg: {
-        "intake@${userName}" = {
-          description = "Intake service for user ${userName}";
-          script = "${runScript userName}";
-          path = intakeCfg.extraPackages ++ userCfg.extraPackages;
-          serviceConfig = {
-            User = userName;
-            Type = "simple";
-          };
-          wantedBy = [ "multi-user.target" ];
-          after = [ "network.target" ];
-          enable = userCfg.enable;
-        };
-      };
-    in mkMerge (mapAttrsToList userServiceConfig intakeCfg.users);
 
-    # Define an nginx reverse proxy to request auth
-    services.nginx = mkIf (enabledUsers != {}) {
-      enable = true;
-      virtualHosts."intake" = mkIf (enabledUsers != {}) {
-        listen = [ intakeCfg.listen ];
-        locations."/" = {
-          proxyPass = "http://127.0.0.1:$target_port";
-          basicAuthFile = intakePwd;
+      # File locations
+      intakeDir = "/etc/intake";
+      intakePwd = "${intakeDir}/htpasswd";
+    in
+    {
+      # Apply the overlay so intake is included in pkgs.
+      nixpkgs.overlays = [ flake.overlays.default ];
+
+      # Define a user group for access to the htpasswd file. nginx needs to be able to read it.
+      users.groups.intake.members = mkIf (enabledUsers != { }) (enabledUserNames ++ [ "nginx" ]);
+
+      # Define an activation script that ensures that the htpasswd file exists.
+      system.activationScripts.etc-intake = ''
+        if [ ! -e ${intakeDir} ]; then
+          ${pkgs.coreutils}/bin/mkdir -p ${intakeDir};
+        fi
+        ${pkgs.coreutils}/bin/chown root:root ${intakeDir}
+        ${pkgs.coreutils}/bin/chmod 755 ${intakeDir}
+        if [ ! -e ${intakePwd} ]; then
+          ${pkgs.coreutils}/bin/touch ${intakePwd}
+        fi
+        ${pkgs.coreutils}/bin/chown root:intake ${intakePwd}
+        ${pkgs.coreutils}/bin/chmod 660 ${intakePwd}
+      '';
+
+      # Give every intake user the htpasswd wrapper, the shared packages, and the user-specific packages.
+      users.users =
+        let
+          addPackagesToUser = userName: {
+            ${userName}.packages = [
+              htpasswdWrapper
+              intake
+            ] ++ intakeCfg.extraPackages ++ intakeCfg.users.${userName}.extraPackages;
+          };
+        in
+        mkMerge (map addPackagesToUser enabledUserNames);
+
+      # Enable cron
+      services.cron.enable = true;
+
+      # Define a user service for each configured user
+      systemd.services =
+        let
+          runScript =
+            userName:
+            pkgs.writeShellScript "intake-run.sh" ''
+              # Add the setuid wrapper directory so `crontab` is accessible
+              export PATH="${config.security.wrapperDir}:$PATH"
+              ${pythonEnv}/bin/intake run -d /home/${userName}/.local/share/intake --port ${toString userPort.${userName}}
+            '';
+          # systemd service definition for a single user, given `services.intake.users.userName` = `userCfg`
+          userServiceConfig = userName: userCfg: {
+            "intake@${userName}" = {
+              description = "Intake service for user ${userName}";
+              script = "${runScript userName}";
+              path = intakeCfg.extraPackages ++ userCfg.extraPackages;
+              serviceConfig = {
+                User = userName;
+                Type = "simple";
+              };
+              wantedBy = [ "multi-user.target" ];
+              after = [ "network.target" ];
+              enable = userCfg.enable;
+            };
+          };
+        in
+        mkMerge (mapAttrsToList userServiceConfig intakeCfg.users);
+
+      # Define an nginx reverse proxy to request auth
+      services.nginx = mkIf (enabledUsers != { }) {
+        enable = true;
+        virtualHosts."intake" = mkIf (enabledUsers != { }) {
+          listen = [ intakeCfg.listen ];
+          locations."/" = {
+            proxyPass = "http://127.0.0.1:$target_port";
+            basicAuthFile = intakePwd;
+          };
+          extraConfig = foldl (acc: val: acc + val) "" (
+            mapAttrsToList (userName: port: ''
+              if ($remote_user = "${userName}") {
+                set $target_port ${toString port};
+              }
+            '') userPort
+          );
         };
-        extraConfig = foldl (acc: val: acc + val) "" (mapAttrsToList (userName: port: ''
-          if ($remote_user = "${userName}") {
-            set $target_port ${toString port};
-          }
-        '') userPort);
       };
     };
-  };
 }

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "intake"
-version = "1.1.0"
+version = "1.3.1"
 
 [project.scripts]
 intake = "intake.cli:main"

shell.nix

@@ -1,10 +1,9 @@
-(import
-  (
-    let lock = builtins.fromJSON (builtins.readFile ./flake.lock); in
-    fetchTarball {
-      url = "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
-      sha256 = lock.nodes.flake-compat.locked.narHash;
-    }
-  )
-  { src = ./.; }
-).shellNix
+(import (
+  let
+    lock = builtins.fromJSON (builtins.readFile ./flake.lock);
+  in
+  fetchTarball {
+    url = "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
+    sha256 = lock.nodes.flake-compat.locked.narHash;
+  }
+) { src = ./.; }).shellNix

tests/channels.json

@@ -2,6 +2,7 @@
   "demo": [
     "demo_basic_callback",
     "demo_logging",
-    "demo_raw_sh"
+    "demo_raw_sh",
+    "demo_oncreate"
   ]
 }

tests/conftest.py

@@ -1,5 +1,5 @@
 from pathlib import Path
-from typing import List, Callable
+from typing import Generator, Callable
 
 import pytest
 
@@ -14,15 +14,16 @@ def clean_source(source_path: Path):
 
 
 @pytest.fixture
-def using_source() -> Callable:
+def using_source() -> Generator[Callable, None, LocalSource]:
     test_data = Path(__file__).parent
-    sources: List[Path] = []
+    sources: list[Path] = []
 
     def _using_source(name: str):
         source_path = test_data / name
         clean_source(source_path)
         sources.append(source_path)
         return LocalSource(test_data, name)
+
     yield _using_source
 
     for source_path in sources:

tests/default/intake.json

@@ -1,7 +1,9 @@
 {
   "action": {
     "fetch": {
-      "exe": "true"
+      "args": [
+        "true"
+      ]
     }
   }
 }

tests/demo_basic_callback/intake.json

@@ -1,20 +1,20 @@
 {
   "action": {
     "fetch": {
-      "exe": "./increment.py",
       "args": [
+        "./increment.py",
         "fetch"
       ]
     },
     "increment": {
-      "exe": "./increment.py",
       "args": [
+        "./increment.py",
         "increment"
       ]
     },
     "decrement": {
-      "exe": "./increment.py",
       "args": [
+        "./increment.py",
         "decrement"
       ]
     }

tests/demo_logging/intake.json

@@ -1,8 +1,8 @@
 {
   "action": {
     "fetch": {
-      "exe": "python3",
       "args": [
+        "python3",
         "update.py"
       ]
     }

tests/demo_oncreate/intake.json

@@ -0,0 +1,22 @@
+{
+  "action": {
+    "fetch": {
+      "args": [
+        "./update.py",
+        "fetch"
+      ]
+    },
+    "update": {
+      "args": [
+        "./update.py",
+        "update"
+      ]
+    },
+    "on_create": {
+      "args": [
+        "./update.py",
+        "update"
+      ]
+    }
+  }
+}

tests/demo_oncreate/update.py

@@ -0,0 +1,29 @@
+#!/usr/bin/env python3
+
+import argparse, json, sys, time
+
+parser = argparse.ArgumentParser()
+parser.add_argument("action")
+args = parser.parse_args()
+
+print("args:", args, file=sys.stderr, flush=True)
+
+if args.action == "fetch":
+    print(
+        json.dumps(
+            {
+                "id": str(int(time.time())),
+                "title": "Title has not been updated",
+                "action": {
+                    "update": 0,
+                },
+            }
+        )
+    )
+
+if args.action == "update" or args.action == "on_create":
+    item = sys.stdin.readline()
+    item = json.loads(item)
+    item["action"]["update"] += 1
+    item["title"] = f"Updated {item['action']['update']} times"
+    print(json.dumps(item))

tests/demo_raw_sh/intake.json

@@ -1,11 +1,11 @@
 {
   "action": {
     "fetch": {
-      "exe": "sh",
       "args": [
+        "sh",
         "-c",
         "echo {\\\"id\\\": \\\"$(date +%Y-%m-%d-%H-%M)\\\"}"
       ]
     }
   }
-}
+}

tests/test_inbox/intake.json

@@ -1,8 +1,10 @@
 {
   "action": {
     "fetch": {
-      "exe": "./update.py",
-      "args": ["fetch"]
+      "args": [
+        "./update.py",
+        "fetch"
+      ]
     }
   }
 }

tests/test_source.py

@@ -1,4 +1,6 @@
 import json
+from pathlib import Path
+import tempfile
 
 from intake.source import fetch_items, update_items, LocalSource
 
@@ -8,6 +10,7 @@ def test_default_source(using_source):
     fetch = fetch_items(source)
     assert len(fetch) == 0
 
+
 def test_basic_lifecycle(using_source):
     source: LocalSource = using_source("test_inbox")
     state = {"inbox": [{"id": "first"}]}
@@ -61,3 +64,44 @@ def test_basic_lifecycle(using_source):
     items = list(source.get_all_items())
     assert len(items) == 1
     assert items[0]["id"] == "second"
+
+
+def test_batch():
+    with tempfile.TemporaryDirectory() as data_dir:
+        root = Path(data_dir)
+        source_dir = root / "batching"
+        source_dir.mkdir()
+        config_file = source_dir / "intake.json"
+        sh_args = [
+            "python",
+            "-c",
+            "import random; print(f'{{\"id\":\"{random.randrange(16**16):016x}\"}}')"
+        ]
+        batch_config = {
+                    "action": {
+                        "fetch": {
+                            "args": sh_args
+                        }
+                    },
+                    "batch": 0
+                }
+        config_file.write_text(json.dumps(batch_config))
+        source = LocalSource(root, source_dir.name)
+
+        # batch sets the tts
+        fetch1 = fetch_items(source)
+        assert len(fetch1) == 1
+        update_items(source, fetch1)
+        item1 = source.get_item(fetch1[0]["id"])
+        assert "tts" in item1._item
+
+        batch_config["batch"] = 3600
+        config_file.write_text(json.dumps(batch_config))
+
+        fetch2 = fetch_items(source)
+        assert len(fetch2) == 1
+        update_items(source, fetch2)
+        item2 = source.get_item(fetch2[0]["id"])
+        assert "tts" in item2._item
+        assert item1["id"] != item2["id"]
+        assert item2.tts_at == item1.tts_at + 3600