Hi Bernhard, > Distributions typically build binaries from release tarballs > that do not contain a .git directory. > In such a setup the git log would fail.
I did not know that, as I'm not in the distro business. > This patch provides a fallback that still allows for reproducibility. As I wrote in <https://lists.gnu.org/archive/html/bug-gnulib/2020-03/msg00061.html>, the date is important for the readers of the generated file. If the .git directory is not present, let's use the ChangeLog instead. 2020-04-10 Bruno Haible <br...@clisp.org> MODULES.html.sh: Support for reproducible builds from git-less tarballs. Reported by Bernhard M. Wiedemann <bwiedem...@suse.de> in <https://lists.gnu.org/archive/html/bug-gnulib/2020-03/msg00061.html>. * MODULES.html.sh: In a git-less tarball, use the date of the first ChangeLog entry. diff --git a/MODULES.html.sh b/MODULES.html.sh index b1638da..d1ec78f 100755 --- a/MODULES.html.sh +++ b/MODULES.html.sh @@ -3695,7 +3695,11 @@ func_echo '<LI>A POT file and some PO files' func_end UL func_echo '<HR>' -git_checkout_date=`git log -n 1 --date=iso --format=fuller | sed -n -e 's/^CommitDate: //p'` +git_checkout_date=`if test -d .git; then + git log -n 1 --date=iso --format=fuller | sed -n -e 's/^CommitDate: //p'; + else + sed -n -e 's/^\([0-9][0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9]\).*/\1/p' -e 1q ChangeLog; + fi` pretty_date=`LC_ALL=C date +"%e %B %Y" --date="$git_checkout_date"` func_echo "Generated by <CODE>MODULES.html.sh</CODE> from a git checkout as of ${pretty_date}."
