# HG changeset patch
# User Franz Glasner <fzglas.hg@dom66.de>
# Date 1740342468 -3600
# Node ID b65d25882e44ab80833f4d4f438a1cff9952d755
# Parent  99b78fa04bc1223737f9e7858e0b9be1b144b080
REFACTOR: sdist generation: postprocess an sdist to include symbolic links as symbolic links.

A standard sdist contains no symlinks but dereferences symlinks encountered
in the source tree.

diff -r 99b78fa04bc1 -r b65d25882e44 MANIFEST.in
--- a/MANIFEST.in	Sun Feb 23 14:45:26 2025 +0100
+++ b/MANIFEST.in	Sun Feb 23 21:27:48 2025 +0100
@@ -2,4 +2,5 @@
 graft docs
 prune docs/_build
 graft tests
+prune tests/data
 global-exclude *.pyc *.pyo
diff -r 99b78fa04bc1 -r b65d25882e44 _postprocess-sdist.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/_postprocess-sdist.py	Sun Feb 23 21:27:48 2025 +0100
@@ -0,0 +1,107 @@
+# -*- coding: utf-8 -*-
+"""Postprogress a .tar-sdist to include tests/data with symlinks as symlinks
+
+"""
+
+from __future__ import print_function, absolute_import
+
+import ast
+try:
+    from configparser import ConfigParser
+except ImportError:
+    from ConfigParser import SafeConfigParser as ConfigParser
+import io
+import os
+import tarfile
+
+import cutils
+import cutils.util.walk
+
+
+def main():
+    with io.open("setup.cfg", "rt", encoding="utf-8") as cfgfile:
+        cp = ConfigParser()
+        if hasattr(cp, "read_file"):
+            cp.read_file(cfgfile, "setup.cfg")
+        else:
+            cp.readfp(cfgfile, "setup.cfg")
+    project_name = cp.get("metadata", "name")
+    project_version = cp.get("metadata", "version")
+    if project_version.startswith("attr:"):
+        assert project_version == "attr: cutils.__version__"
+        project_version = ast.literal_eval(repr(cutils.__version__))
+    #
+    # Compressed tar files cannot be modified by Python: make sure the
+    # originally generated archive is uncompressed.
+    #
+    assert cp.get("sdist", "formats") == "tar"
+
+    archive_name = "{}-{}.tar".format(project_name, project_version)
+    archive_path = "dist/" + archive_name
+    assert os.path.isfile(archive_path)
+
+    # the directory within the archive
+    archive_path_prefix = "{}-{}".format(project_name, project_version)
+
+    egg_directory = "{}.egg-info".format(project_name.replace("-", "_"))
+    assert os.path.isdir(egg_directory)
+    sources_txt_path = "{}/SOURCES.txt".format(egg_directory)
+    sources_txt_arcname = "{}/{}/SOURCES.txt".format(
+        archive_path_prefix,
+        egg_directory)
+
+    with tarfile.TarFile(archive_path, "r") as tf:
+        sf = tf.extractfile(sources_txt_arcname)
+        try:
+            sources_txt = sf.read()
+        finally:
+            sf.close()
+
+    with tarfile.TarFile(archive_path, "a") as tf:
+        arcname = "{}/tests/data".format(archive_path_prefix)
+        try:
+            info = tf.getmember(arcname)
+        except KeyError:
+            pass
+        else:
+            raise RuntimeError("already postprocessed")
+        pre_names = set(tf.getnames())
+        tf.add("tests/data", arcname=arcname, recursive=True)
+
+        #
+        # Determine the new files and symlinks that are to be added
+        # to SOURCES.txt. Skip directories.
+        #
+        post_names = set(tf.getnames())
+        new_names = list(post_names - pre_names)
+        new_names.sort()
+        new_sources = []
+
+        for np in new_names:
+            nn = np[len(archive_path_prefix)+1:]
+            info = tf.getmember(np)
+            if not info.isdir():
+                new_sources.append(nn)
+
+        # Augment SOURCES.txt and add it to the archive
+        sources_info = tf.gettarinfo(
+            sources_txt_path, arcname=sources_txt_arcname)
+        sf = io.BytesIO()
+        sf.write(sources_txt)
+        if not sources_txt.endswith(b'\n'):
+            sf.write(b'\n')
+        sf.write(b('\n'.join(new_sources)))
+        sources_info.size = len(sf.getvalue())
+        sf.seek(0)
+        tf.addfile(sources_info, sf)
+
+
+def b(buf, encoding="ascii"):
+    if isinstance(buf, bytes):
+        return buf
+    else:
+        return buf.encode(encoding)
+
+
+if __name__ == "__main__":
+    main()
diff -r 99b78fa04bc1 -r b65d25882e44 setup.cfg
--- a/setup.cfg	Sun Feb 23 14:45:26 2025 +0100
+++ b/setup.cfg	Sun Feb 23 21:27:48 2025 +0100
@@ -7,7 +7,7 @@
 universal = 1
 
 [sdist]
-formats = gztar
+formats = tar
 
 [metadata]
 name = py-cutils