Update SSH keys on gitea

.local/bin/setup/ssh

@@ -1,32 +1,55 @@
 #!/bin/bash
 
+# Extract the login details from enpass
 LABS=$(enpasscli -vault="$HOME/Documents/Enpass/Vaults/primary" -sort show "Scarif: Labs" 2>&1)
 LABSUN=$(echo "$LABS" | grep -Po "(?<=login: )\w+")
 LABSPW=$(echo "$LABS" | grep -Po "(?<=pass : ).+(?=\")")
 
-SSHPATH="$HOME/.ssh/id_ed25519"
+SSHPATH="$HOME/.ssh/id_ed25519" # The path to the SSH key file
+TITLE="$USER@$(cat /etc/hostname)" # The title for the SSH key
 
-ssh-keygen -t ed25519 -f "$SSHPATH" -N "" -q
+# Generate the SSH key if it does not exist
+if [ ! -f $SSHPATH ] && ssh-keygen -t ed25519 -f "$SSHPATH" -N "" -q
 
+# A method to generate the parameters for creating an SSH key on gitea
 generate_post_data() {
     cat <<EOF
 {
     "key": "$(cat "$SSHPATH.pub")",
     "read_only": false,
-    "title": "$USER@$(cat /etc/hostname)"
+    "title": "$TITLE"
 }
 EOF
 }
 
-CREDENTIALS="$LABSUN:$LABSPW"
+CREDENTIALS="$LABSUN:$LABSPW" # The credentials to pass to the API
+KEYS_URL="https://$CREDENTIALS@labs.scarif.space/api/v1/users/keys"
 
-KEYS=$(curl -X GET -s --url "https://$CREDENTIALS@labs.scarif.space/api/v1/users/$LABSUN/keys")
+# Get all the existing keys
+KEYS=$(curl -X GET -s --url "$KEYS_URL")
 
-echo $KEYS | jq '.[].title'
+KEY_EXISTS=$(echo $KEYS | jq --arg KEY "$(cat "$SSHPATH.pub")" 'contains({ key: $KEY })')
 
-curl --request POST \
+[[ $KEY_EXISTS == true ]] && return
+
+# Extract the ids of the keys with the same title as this machine
+IDS=$(echo $KEYS | jq --arg TITLE "$TITLE" 'map(select(.title == $TITLE))[].id')
+
+# Loop through the keys and remove them from gitea to be replaced by the new one
+if [ ! -z "$IDS" ]; do
+    for ID in IDS; do
+        curl -X DELETE \
+            -s \
+            -H "Accept: application/json" \
+            -H "Content-Type:application/json" \
+            --url "$KEYS_URL/$ID"
+    done
+fi
+
+# Save the new key in gitea
+curl -X POST \
     -s \
     -H "Accept: application/json" \
     -H "Content-Type:application/json" \
     --data "$(generate_post_data)" \
-    --url "https://$CREDENTIALS@labs.scarif.space/api/v1/users/$LABSUN/keys"
+    --url "$KEYS_URL"