feat: git weekly backups

orchestrating/README.org

@@ -1,19 +1,42 @@
 #+OPTIONS: toc:nil
 
-* ROOT SERVICES
+* INIT SYSTEM
+
+** ROOT SERVICES (Currently none!)
 =<service>.sh= to be symlinked to =/etc/init.d/podman-containers=
-* USER SERVICES AND RUNLEVELS
+** USER SERVICES AND RUNLEVELS
 =.config= folder to be symlinked to =~=
-* XDG VARIABLES AND RUNNING USER SERVICES ON LOGIN
+** * XDG VARIABLES AND RUNNING USER SERVICES ON LOGIN
 =.profile= to be symlinked to =/home/$USER/.profile=
 
-* RUN USERS SERVICES ON BOOT
+** RUN USERS SERVICES ON BOOT
 Symlink =/etc/init.d/user= to =/etc/init.d/user.$usernames=. After add, add the latter service with =rc-update= as root.
   
-* IF <USER> HAS PASSWORD
+** IF <USER> HAS PASSWORD
 Add the following to a new file in =/etc/doas.d/=:
 
 #+begin_src shell
 permit nopass <user> as <user>
 permit nopass root as <user>
 #+end_src
+
+* Timed cron jobs
+
+First, swap built-in =crond= for =dcron=. We need to swap cron binaries since we would have to give setgid capabilites to the whole Busybox binary to use the included cron binary. We also need to install =libcap= to set capabilities:
+
+#+begin_src shell
+  # apk add dcron libcap
+  ** if crond is set up, remember to stop and delete it before continuing!
+  # rc-service dcron start
+  # rc-update add dcron
+#+end_src
+
+We now set up =$USER='s crontab as such:
+
+#+begin_src shell
+  #crontab -u $USER -e
+  
+  @weekly ID=git-back.weekly /home/$user/pihanepi/orchestrating/cronjobs/forgejo-clone/forgejo-clone.sh
+#+end_src
+
+Finally, check =/var/log/messages= to confirm everything ran successfully.

orchestrating/cronjobs/forgejo-clone/forgejo-clone.sh

@@ -25,15 +25,15 @@ echo $repo_urls
 echo "----\n"
 
 #Cloning each repo to destdir
-i=0;
-finished=false;
-while ! $finished
+repo_idx=0;
+repo_finished=false;
+while ! $repo_finished
 do
-  i=$(($i+1)); 
-  repo=$(awk "{print \$$i}" <(echo $repo_urls))
+  repo_idx=$(($repo_idx+1)); 
+  repo=$(awk "{print \$$repo_idx}" <(echo $repo_urls))
   if [ "$repo" = "" ]
   then
-    finished=true
+    repo_finished=true
   else
     #Retrieve repo name for folder
     repo_name="$(awk -F/ '{print $5}' <(echo $repo))"
@@ -42,16 +42,31 @@ do
     #Remove quotes from user_username
     username=${user_username%\"}
     username=${username#\"}
-    #Clone repo
-    #TODO: what do if repo already exists? if it!
+    #Clone or rebase repo
     if [ -e "$REPO_DIR$repo_name" ]
     then
       echo "REPO: $repo_name"
-      git -C "$REPO_DIR$repo_name" fetch --all 
-      #git -C "$REPO_DIR$repo_name" rebase --update-refs 
+      git -C "$REPO_DIR$repo_name" fetch -t --all
+      branch="$(git -C "$REPO_DIR$repo_name" branch | awk '{print $2}')"
+      git -C "$REPO_DIR$repo_name" rebase $branch --onto origin/$branch
     else
-      git clone https://$user_username:$AUTH_TOKEN@$GIT_DOMAIN/$username/$repo_name  /home/$USER/pihanepi/datamount/gitbackup/$repo_name --recurse-submodules
+      git clone https://$user_username:$AUTH_TOKEN@$GIT_DOMAIN/$username/$repo_name /home/$USER/pihanepi/datamount/gitbackup/$repo_name --recurse-submodules
     fi
   fi
 done
 
+#NOTE: Cool git formatting and same loop to operate on all remote branches
+#branches="$(git -C $REPO_DIR$repo_name branch -r --format='%(refname:short)' | awk -F/ '{if ($2) print $2;}')"
+#branch_idx=0;
+#branch_finished=false;
+#while ! $branch_finished
+#do
+#  branch_idx=$(($branch_idx+1)); 
+#	branch=$(awk "{print \$$branch_idx}" <(echo $branches))
+#	if [ "$branch" = "" ]
+#	then
+#	  branch_finished=true
+#	else
+#    git -C "$REPO_DIR$repo_name" rebase $branch --onto origin/$branch
+#	fi
+#done