[PATCH v2] devel/release-checks: added checking of copyright year in documentation

[Tomi Ollila <tomi.ollila@iki.fi>]

Check that copyright year will be current year in generated documentation.

Checking is done my matching that copyright line contains current year
as a substring which is good enough "approximation" in this context.
---

v2 of id:1438511187-11321-1-git-send-email-tomi.ollila@iki.fi, perhaps
addressing comments in id:87r3niwan6.fsf@maritornes.cs.unb.ca

 devel/release-checks.sh | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/devel/release-checks.sh b/devel/release-checks.sh
index 8604a9f7d10b..5802942aa975 100755
--- a/devel/release-checks.sh
+++ b/devel/release-checks.sh
@@ -175,6 +175,21 @@ case $news_date in
 	append_emsg "Date '$news_date' in NEWS file is not in format (yyyy-mm-dd)"
 esac
 
+year=`exec date +%Y`
+echo -n "Checking that copyright in documentation contains $year... "
+# Read the value of variable `copyright' defined in 'doc/conf.py'.
+# As __file__ is not defined when python command is given from command line,
+# it is defined before contents of 'doc/conf.py' (which dereferences __file__)
+# is executed.
+copyrightline=`exec python -c "with open('doc/conf.py') as cf: __file__ = ''; exec(cf.read()); print(copyright)"`
+case $copyrightline in
+	*$year*)
+		echo Yes. ;;
+	*)
+		echo No.
+		append_emsg "The copyright in doc/conf.py line '$copyrightline' does not contain '$year'"
+esac
+
 if [ -n "$emsgs" ]
 then
 	echo
-- 
2.0.0