add /packaging_apps_intro link

feat(readme_generator): don't hardcode the list of languages, extract it from the README templates

antifeatures.toml

@@ -79,11 +79,11 @@ description.it = "Questo software non è più mantenuto. Ci si può aspettare ch
 icon = "user-times"
 title.en = "Package not maintained"
 title.eu = "Mantendu gabeko paketea"
-title.fr = "Paquet non maintenu"
+title.fr = "Package non maintenu"
 title.it = "Pacchetto non mantenuto"
-description.en = "This YunoHost package is not maintained and needs adoption."
+description.en = "This YunoHost package is not actively maintained and needs adoption. This means that minimal maintenance is made by volunteers who don't use the app, so you should expect the app to lose reliability over time. You can [learn how to package](https://yunohost.org/packaging_apps_intro) if you'd like to adopt it."
 description.eu = "Pakete honek ez du mantenduko duenik, boluntario baten beharra dauka."
-description.fr = "Ce package YunoHost n'est plus maintenu et doit être adopté."
+description.fr = "Ce package YunoHost n'est pas activement maintenu et a besoin d'être adopté. Cela veut dire que la maintenance minimale est réalisée par des bénévoles qui n'utilisent pas l'application, il faut donc s'attendre à ce que l'app perde en fiabilité avec le temps. Vous pouvez [apprendre comment packager](https://yunohost.org/packaging_apps_intro) si vous voulez l'adopter."
 description.it = "Questo pacchetto di YunoHost non è più mantenuto e necessita di essere adottato."
 
 [paid-content]

tools/readme_generator/make_readme.py

@@ -6,7 +6,7 @@ import os
 from pathlib import Path
 from copy import deepcopy
 
-from typing import Dict, Optional, List
+from typing import Dict, Optional, List, Tuple
 
 import toml
 from jinja2 import Environment, FileSystemLoader
@@ -51,7 +51,22 @@ def generate_READMEs(app_path: Path):
 
     env = Environment(loader=FileSystemLoader(Path(__file__).parent / "templates"))
 
-    for lang, lang_suffix in [("en", ""), ("fr", "_fr")]:
+    # parse available README template and generate a list in the form of:
+    # > [("en", ""), ("fr", "_fr"), ...]
+    available_langs: List[Tuple[str, str]] = [("en", "")]
+    for README_template in (Path(__file__).parent / "templates").iterdir():
+        # we only want README_{lang}.md.j2 files
+        if README_template.name == "README.md.j2":
+            continue
+
+        if not README_template.name.endswith(".j2") or not README_template.name.startswith("README_"):
+            continue
+
+        language_code = README_template.name.split("_")[1].split(".")[0]
+
+        available_langs.append((language_code, "_" + language_code))
+
+    for lang, lang_suffix in available_langs:
         template = env.get_template(f"README{lang_suffix}.md.j2")
 
         if (app_path / "doc" / f"DESCRIPTION{lang_suffix}.md").exists():