Add an option to disable modifying the git filter config.

README.Fedora

@@ -0,0 +1,11 @@
+git-lfs on Fedora
+=================
+
+By default, the package will run a post-install/post-uninstall task to
+enable/disable git-lfs filters in the system git configuration.
+
+If you wish to enable/disable git-lfs manually, you can set the following
+option in the system git config, and package install/uninstall will no longer
+do this:
+
+# git config --system 'fedora.git-lfs.no-modify-config' true

git-lfs.spec

@@ -20,6 +20,7 @@ Summary:        Git extension for versioning large files
 License:        MIT
 URL:            https://git-lfs.github.io/
 Source0:        https://github.com/%{name}/%{name}/releases/download/v%{version}/%{name}-v%{version}.tar.gz
+Source1:        README.Fedora
 
 BuildRequires:  golang(github.com/dpotapov/go-spnego)
 BuildRequires:  golang(github.com/git-lfs/gitobj/v2) >= 2
@@ -63,6 +64,7 @@ storing the file contents on a remote server.
 
 %prep
 %goprep
+cp -p %SOURCE1 .
 
 # Modify Makefile so that it expects binaries where we build them.
 sed -i -e 's!\.\./bin/!/%{gobuilddir}/bin/!g' t/Makefile
@@ -99,10 +101,13 @@ install -Dpm0644 man/*.5 %{buildroot}%{_mandir}/man5/
 
 
 %post
+if [ "x$(git config --type=bool --get 'fedora.git-lfs.no-modify-config')" != "xtrue" ]; then
 %{_bindir}/%{name} install --system --skip-repo
+fi
 
 %preun
-if [ $1 -eq 0 ]; then
+if [ $1 -eq 0 ] && \
+   [ "x$(git config --type=bool --get 'fedora.git-lfs.no-modify-config')" != "xtrue" ]; then
     %{_bindir}/%{name} uninstall --system --skip-repo
 fi
 exit 0
@@ -117,7 +122,7 @@ PATH=%{buildroot}%{_bindir}:%{gobuilddir}/bin:$PATH \
 
 
 %files
-%doc README.md CHANGELOG.md docs
+%doc README.md README.Fedora CHANGELOG.md docs
 %license LICENSE.md
 %{_bindir}/%{name}
 %{_mandir}/man1/%{name}*.1*
@@ -130,6 +135,7 @@ PATH=%{buildroot}%{_bindir}:%{gobuilddir}/bin:$PATH \
 * Thu Sep 03 2020 Elliott Sales de Andrade <quantum.analyst@gmail.com> - 2.12.0-1
 - Update to latest version (#1874604)
 - Remove duplicate docs/man directory (#1852765)
+- Add an option to disable modifying the git filter config (#1768060)
 
 * Sat Aug 01 2020 Fedora Release Engineering <releng@fedoraproject.org> - 2.11.0-3
 - Second attempt - Rebuilt for