Add SOP for removing tarballs in the dist-git rpm branches

Signed-off-by: Samyak Jain <samyak.jn11@gmail.com>

modules/ROOT/nav.adoc

@@ -59,6 +59,7 @@
 *** xref:releng_misc_guide:sop_unretire.adoc[Unretire package branch]
 *** xref:releng_misc_guide:sop_update_critpath.adoc[Update Critpath]
 *** xref:releng_misc_guide:sop_remote_dist_git_branches.adoc[Remove dist-git branches]
+*** xref:releng_misc_guide:sop_remote_tarballs_dist_git.adoc[Remove tarballs from dist-git branches]
 *** xref:releng_misc_guide:sop_package_unblocking.adoc[Package Unblocking]
 *** xref:releng_misc_guide:sop_retire_orphaned_packages.adoc[Retire Orphaned Packages]
 *** xref:releng_misc_guide:sop_requesting_task_automation_users.adoc[Requesting Automation Users]

modules/releng_misc_guide/pages/sop_remote_tarballs_dist_git.adoc

@@ -0,0 +1,69 @@
+
+= Removing unwanted tarballs from the dist-git rpms
+:page-authors: sysadmin-main
+
+== Description
+This SOP provides instructions for sysadmin-main level users to remove unwanted tarballs and source RPMs from a branch in the dist-git repositories on Fedora's infrastructure.
+
+== Access level required
+* `sysadmin-main`
+
+== Machine
+* `pkgs01.iad2.fedoraproject.org`
+
+== Steps to access the machine
+
+. SSH into `batcave01.iad2.fedoraproject.org`:
++
+----
+   ssh batcave01.iad2.fedoraproject.org
+----
+
+. Switch to the root user:
++
+----
+   sudo su
+----
+
+. SSH into `pkgs01.iad2.fedoraproject.org`:
++
+----
+
+   ssh pkgs01.iad2.fedoraproject.org
+----
+
+== Removing unwanted tarballs from dist-git
+To remove unwanted tarballs and source RPMs from a specific branch of a package in the dist-git repository:
+
+. Navigate to the package repository:
++
+----
+   cd /srv/git/repositories/rpms/PKG_NAME.git
+----
+
+. Rewrite history on the desired branch:
++
+----
+   FILTER_BRANCH_SQUELCH_WARNING=1 git filter-branch --force --index-filter 'git rm -r --cached --ignore-unmatch *.src.rpm *.tar.gz' --original refs/archive -- BRANCH
+----
+
+. Move the backup reference:
++
+----
+   mv refs/archive/refs/heads/BRANCH refs/archive/BRANCH
+----
+
+. Remove the redundant directories:
++
+----
+   rm -r refs/archive/refs/
+----
+
+[NOTE]
+====
+Replace `PKG_NAME` with the name of the package.
+Replace `BRANCH` with the target branch name.
+====
+
+== Verification
+Verify the unwanted files have been removed from the branch history.