gnulib-tool.py: Fix output of 'po/LINGUAS'.

[Collin Funk]

Hi Bruno,

With all of the updates to gnulib-tool.py it is very easy to see why
GNU Bison fails to build. This is the only diff shown between
gnulib-tool.py and gnulib-tool.sh after running ./bootstrap:

--- a/bison-python/gnulib-po/LINGUAS
+++ b/bison-shell/gnulib-po/LINGUAS
@@ -1,18 +1,4 @@
 # Set of available languages.
-.gitignore
-Makevars.template
-Rules-quot
-boldquot.sed
-en@boldquot.header
-en@quot.header
-insert-header.sin
-quot.sed
-Makefile.in.in~
-Makefile.in.in
-remove-potcdate.sin~
-remove-potcdate.sin
-Makevars
-POTFILES.in
 af
 be
 bg

Here is the very simple fix:

diff --git a/pygnulib/GLImport.py b/pygnulib/GLImport.py
index c3a7597d02..1fc43bfdff 100644
--- a/pygnulib/GLImport.py
+++ b/pygnulib/GLImport.py
@@ -1241,7 +1241,8 @@ AC_DEFUN([%s_FILE_LIST], [\n''' % macro_prefix
                 tmpfile = self.assistant.tmpfilename(basename)
                 data = '# Set of available languages.\n'
                 files = [ constants.subend('.po', '', file)
-                          for file in os.listdir(joinpath(destdir, pobase)) ]
+                          for file in os.listdir(joinpath(destdir, pobase))
+                          if file.endswith('.po') ]
                 data += lines_to_multiline(files)
                 with codecs.open(tmpfile, 'wb', 'UTF-8') as file:
                     file.write(data)

And the corresponding section in gnulib-tool.sh, line 5847:

      func_dest_tmpfilename $pobase/LINGUAS
      (cd "$destdir"/$pobase \
       && { echo '# Set of available languages.'
            LC_ALL=C ls -1 *.po | sed -e 's,\.po$,,'
          }
      ) > "$tmpfile"

Collin
From de12261e22c51fe1e2f5ee77d87a46462dd51046 Mon Sep 17 00:00:00 2001
From: Collin Funk <collin.fu...@gmail.com>
Date: Sat, 30 Mar 2024 22:38:48 -0700
Subject: [PATCH] gnulib-tool.py: Fix output of 'po/LINGUAS'.

* pygnulib/GLImport.py (GLImport.execute): Only use PO files when
determining the output for po/LINGUAS.
---
 ChangeLog            | 6 ++++++
 pygnulib/GLImport.py | 3 ++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index 28d1c2e855..50d1559251 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2024-03-30  Collin Funk  <collin.fu...@gmail.com>
+
+	gnulib-tool.py: Fix output of 'po/LINGUAS'.
+	* pygnulib/GLImport.py (GLImport.execute): Only use PO files when
+	determining the output for po/LINGUAS.
+
 2024-03-30  Collin Funk  <collin.fu...@gmail.com>
 
 	gnulib-tool.py: Fix sorting of modules when --local-dir is used.
diff --git a/pygnulib/GLImport.py b/pygnulib/GLImport.py
index c3a7597d02..1fc43bfdff 100644
--- a/pygnulib/GLImport.py
+++ b/pygnulib/GLImport.py
@@ -1241,7 +1241,8 @@ AC_DEFUN([%s_FILE_LIST], [\n''' % macro_prefix
                 tmpfile = self.assistant.tmpfilename(basename)
                 data = '# Set of available languages.\n'
                 files = [ constants.subend('.po', '', file)
-                          for file in os.listdir(joinpath(destdir, pobase)) ]
+                          for file in os.listdir(joinpath(destdir, pobase))
+                          if file.endswith('.po') ]
                 data += lines_to_multiline(files)
                 with codecs.open(tmpfile, 'wb', 'UTF-8') as file:
                     file.write(data)
-- 
2.44.0