Add debug loggings for identifying a matching dist (#2751)

* Add debug loggings for identifying a matching dist

* Fix lint failure on f-string.

Author: BitcoinWukong

pythonforandroid/distribution.py

@@ -2,7 +2,7 @@
 import glob
 import json
 
-from pythonforandroid.logger import (info, info_notify, warning, Err_Style, Err_Fore)
+from pythonforandroid.logger import (debug, info, info_notify, warning, Err_Style, Err_Fore)
 from pythonforandroid.util import current_directory, BuildInterruptingException
 from shutil import rmtree
 
@@ -91,6 +91,7 @@ def get_distribution(
         '''
 
         possible_dists = Distribution.get_distributions(ctx)
+        debug(f"All possible dists: {possible_dists}")
 
         # Will hold dists that would be built in the same folder as an existing dist
         folder_match_dist = None
@@ -100,6 +101,7 @@ def get_distribution(
             possible_dists = [
                 d for d in possible_dists if
                 (d.name == name) and all(arch_name in d.archs for arch_name in archs)]
+            debug(f"Dist matching name and arch: {possible_dists}")
 
             if possible_dists:
                 # There should only be one folder with a given dist name *and* arch.
@@ -115,13 +117,18 @@ def get_distribution(
             if (
                 ndk_api is not None and dist.ndk_api != ndk_api
             ) or dist.ndk_api is None:
+                debug(
+                    f"dist {dist} failed to match ndk_api, target api {ndk_api}, dist api {dist.ndk_api}"
+                )
                 continue
             for recipe in recipes:
                 if recipe not in dist.recipes:
+                    debug(f"dist {dist} missing recipe {recipe}")
                     break
             else:
                 _possible_dists.append(dist)
         possible_dists = _possible_dists
+        debug(f"Dist matching ndk_api and recipe: {possible_dists}")
 
         if possible_dists:
             info('Of the existing distributions, the following meet '
@@ -133,17 +140,24 @@ def get_distribution(
         # If any dist has perfect recipes, arch and NDK API, return it
         for dist in possible_dists:
             if force_build:
+                debug("Skipping dist due to forced build")
                 continue
             if ndk_api is not None and dist.ndk_api != ndk_api:
+                debug("Skipping dist due to ndk_api mismatch")
                 continue
             if not all(arch_name in dist.archs for arch_name in archs):
+                debug("Skipping dist due to arch mismatch")
                 continue
             if (set(dist.recipes) == set(recipes) or
                 (set(recipes).issubset(set(dist.recipes)) and
                  not require_perfect_match)):
                 info_notify('{} has compatible recipes, using this one'
                             .format(dist.name))
                 return dist
+            else:
+                debug(
+                    f"Skipping dist due to recipes mismatch, expected {set(recipes)}, actual {set(dist.recipes)}"
+                )
 
         # If there was a name match but we didn't already choose it,
         # then the existing dist is incompatible with the requested