install bash completion into share/bash-completion/completions

scripts/bash_completion.py

@@ -47,7 +47,7 @@ for action in option.build_parser()._actions:
         if opt.startswith("--"):
             opts.append(opt)
 
-PATH = util.path("gallery-dl.bash_completion")
+PATH = util.path("build/completion/gallery-dl")
 with open(PATH, "w", encoding="utf-8") as file:
     file.write(TEMPLATE % {
         "opts"    : " ".join(opts),

scripts/man.py

@@ -99,7 +99,7 @@ and https://github.com/mikf/gallery-dl/graphs/contributors
         ))
 
     if not path:
-        path = util.path("gallery-dl.1")
+        path = util.path("build/man/gallery-dl.1")
     with open(path, "w", encoding="utf-8") as file:
         file.write(TEMPLATE.lstrip() % {
             "options": "\n".join(options),
@@ -217,7 +217,7 @@ and https://github.com/mikf/gallery-dl/graphs/contributors
                     content.append(strip_rst(text, field != "Example"))
 
     if not path:
-        path = util.path("gallery-dl.conf.5")
+        path = util.path("build/man/gallery-dl.conf.5")
     with open(path, "w", encoding="utf-8") as file:
         file.write(TEMPLATE.lstrip() % {
             "options": "\n".join(content),

scripts/util.py

@@ -8,4 +8,6 @@ sys.path.insert(0, os.path.realpath(ROOTDIR))
 
 
 def path(*segments, join=os.path.join):
-    return join(ROOTDIR, *segments)
+    result = join(ROOTDIR, *segments)
+    os.makedirs(os.path.dirname(result), exist_ok=True)
+    return result