From 6824801055644a589059a520d16bc054d3d06784 Mon Sep 17 00:00:00 2001
From: Florian Schmaus <flo@geekplace.eu>
Date: Tue, 11 Oct 2022 16:09:27 +0200
Subject: [PATCH] Add license for bibliographic data (third attempt)

We were asked [1] to state that the XEP bibliographic data is openly
available and free of charge if we want it to be consumed by third
parties.

This weas previously merged as 747738804a2d ("Add license for
bibliographic data"), but unfortunately later reverted in
59b2a5ca15c9 ("Revert "Add license for bibliographic data"",
https://github.com/xsf/xeps/pull/1221). However, the fix for the
broken docker build is trivial: simply also copy refs-LICENSE into the
container. This commit does that.

Fixes #1219.

1: https://github.com/ietf-tools/bibxml-service/issues/302#issuecomment-1274686153
---
 Dockerfile   | 2 +-
 Makefile     | 5 ++++-
 refs-LICENSE | 9 +++++++++
 3 files changed, 14 insertions(+), 2 deletions(-)
 create mode 100644 refs-LICENSE

diff --git a/Dockerfile b/Dockerfile
index 86703430a..2abb937bc 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,7 +6,7 @@ FROM xmppxsf/xeps-base:latest as build
 ARG NCORES=1
 ARG TARGETS="html inbox-html inbox-xml pdf xeplist refs xml"
 
-COPY *.xml xep.* *.css *.xsl *.js *.xsl Makefile /src/
+COPY *.xml xep.* *.css *.xsl *.js *.xsl Makefile refs-LICENSE /src/
 COPY resources/*.pdf /src/resources/
 COPY tools/*.py /src/tools/
 COPY inbox/*.xml inbox/*.ent inbox/*.dtd /src/inbox/
diff --git a/Makefile b/Makefile
index 051bc7bd9..009b76418 100644
--- a/Makefile
+++ b/Makefile
@@ -76,8 +76,11 @@ inbox-xml: $(OUTDIR)/inbox $(proto_xep_xmls)
 .PHONY: pdf
 pdf: $(xep_pdfs)
 
+$(REFSDIR)/LICENSE: refs-LICENSE
+	cp $< $@
+
 .PHONY: refs
-refs: $(xep_refs)
+refs: $(xep_refs) $(REFSDIR)/LICENSE
 
 .PHONY: examples
 examples: $(xep_examples)
diff --git a/refs-LICENSE b/refs-LICENSE
new file mode 100644
index 000000000..64791b8c3
--- /dev/null
+++ b/refs-LICENSE
@@ -0,0 +1,9 @@
+To the extent possible under law, the XMPP Standards Foundation (XSF)
+has waived all copyright and related or neighboring rights to XSF's
+bibliographic data.
+
+That is, the bibliographic data, which is also accessible via
+https://xmpp.org/extensions/refs/, is put in the public domain via
+CC0 1.0 [1].
+
+1: https://creativecommons.org/publicdomain/zero/1.0/