Add a "plugins" argument to get_all_lexers

and use it in the "duplicate filenames" checker.

3 files changed, 24 insertions, 14 deletions

diff --git a/CHANGES b/CHANGES
index fbb2a25e..c7c0e46e 100644
--- a/CHANGES
+++ b/CHANGES
@@ -7,6 +7,9 @@ Version 2.12.0
 --------------
 (not released yet)
 
+- Added ``plugins`` argument to ``get_all_lexers()``.
+
+
 Version 2.11.2
 --------------
 (released January 6th, 2022)
@@ -20,6 +23,7 @@ Version 2.11.2
 - Remove ``underline`` from ``Whitespace`` style in the ``Tango`` theme (#2020)
 - Fix ``IRC`` and ``Terminal256`` formatters not backtracking correctly for custom token types, resulting in some unstyled tokens (#1986)
 
+
 Version 2.11.1
 --------------
 (released December 31st, 2021)
@@ -30,6 +34,7 @@ Version 2.11.1
   * JSON: Fix a regression which caused whitespace before ``:`` to result in ``Error`` tokens (#2010)
   * SPICE: Various improvements (#2009)
 
+
 Version 2.11.0
 --------------
 (released December 30th, 2021)
@@ -68,13 +73,13 @@ Version 2.11.0
   * objdump-nasm: Improve handling of ``--no-show-raw-insn`` dumps (#1981)
   * Prolog: Support escaped ``\`` inside quoted strings (#1479)
   * Python:
-  
+
     - Support ``~`` in tracebacks (#2004)
     - Support the pattern matching keywords (#1797, #1994)
 
   * RobotFramework: Improve empty brace handling (#1921, #1922)
   * Terraform
-  
+
     - Add the 'set' type (#1909)
     - Support heredocs (#1909)
 
@@ -130,7 +135,7 @@ Version 2.10.0
   * LLVM (#1824)
   * Python (#1852)
   * Rust
-  
+
     - Fix lexing of "break" and "continue" (#1843)
     - Improve attribute handling (#1813)
 
@@ -215,6 +220,7 @@ Version 2.9.0
 
   * Gruvbox light+dark (#1763)
 
+
 Version 2.8.0
 -------------
 (released February 14, 2021)
@@ -297,6 +303,7 @@ Version 2.8.0
 - Improve ``analyze_text`` logic for ``CBM Basic V2`` (#1607)
 - Improve LaTeX formatter (#1708, #1709)
 
+
 Version 2.7.4
 -------------
 (released January 12, 2021)
@@ -333,6 +340,7 @@ Version 2.7.4
 
 Thanks to Google's OSS-Fuzz project for finding many of these bugs.
 
+
 Version 2.7.3
 -------------
 (released December 6, 2020)
diff --git a/pygments/lexers/__init__.py b/pygments/lexers/__init__.py
index 50add7e4..79c4e9bf 100644
--- a/pygments/lexers/__init__.py
+++ b/pygments/lexers/__init__.py
@@ -47,14 +47,18 @@ def _load_lexers(module_name):
         _lexer_cache[cls.name] = cls
 
 
-def get_all_lexers():
+def get_all_lexers(plugins=True):
     """Return a generator of tuples in the form ``(name, aliases,
     filenames, mimetypes)`` of all know lexers.
+
+    If *plugins* is true (the default), plugin lexers supplied by entrypoints
+    are also returned.  Otherwise, only builtin ones are considered.
     """
     for item in LEXERS.values():
         yield item[1:]
-    for lexer in find_plugin_lexers():
-        yield lexer.name, lexer.aliases, lexer.filenames, lexer.mimetypes
+    if plugins:
+        for lexer in find_plugin_lexers():
+            yield lexer.name, lexer.aliases, lexer.filenames, lexer.mimetypes
 
 
 def find_lexer_class(name):
diff --git a/scripts/detect_missing_analyse_text.py b/scripts/detect_missing_analyse_text.py
index fa95c47a..c377b0b6 100644
--- a/scripts/detect_missing_analyse_text.py
+++ b/scripts/detect_missing_analyse_text.py
@@ -17,19 +17,17 @@ import argparse
 def main(args):
     uses = {}
 
-    for name, aliases, filenames, mimetypes in get_all_lexers():
+    for name, aliases, filenames, mimetypes in get_all_lexers(plugins=False):
         cls = find_lexer_class(name)
         if not cls.aliases and not args.skip_no_aliases:
             print(cls, "has no aliases")
         for f in filenames:
-            if f not in uses:
-                uses[f] = []
-            uses[f].append(cls)
+            uses.setdefault(f, []).append(cls)
 
     ret = 0
     for k, v in uses.items():
         if len(v) > 1:
-            #print "Multiple for", k, v
+            # print("Multiple for", k, v)
             for i in v:
                 if i.analyse_text is None:
                     print(i, "has a None analyse_text")
@@ -43,8 +41,8 @@ def main(args):
 if __name__ == '__main__':
     parser = argparse.ArgumentParser()
     parser.add_argument('--skip-no-aliases',
-        help='Skip checks for a lexer with no aliases',
-        action='store_true',
-        default=False)
+                        help='Skip checks for a lexer with no aliases',
+                        action='store_true',
+                        default=False)
     args = parser.parse_args()
     sys.exit(main(args))