From 7f98752cb905ee7352a68a00258371a8e714d6f0 Mon Sep 17 00:00:00 2001
From: Ricard Illa <rilla@monotremata.xyz>
Date: Tue, 13 Sep 2022 10:27:47 +0200
Subject: [PATCH] rsync client, to use with ci

---
 rsync/entrypoint.sh | 25 ++++++++++++++++++++-----
 1 file changed, 20 insertions(+), 5 deletions(-)

diff --git a/rsync/entrypoint.sh b/rsync/entrypoint.sh
index a5f4186..928c1fd 100644
--- a/rsync/entrypoint.sh
+++ b/rsync/entrypoint.sh
@@ -18,11 +18,14 @@ if [ -z "$SSH_KEY" ]; then
     exit 1
 fi
 
+SSH_KEY_CERT="${SSH_KEY_CERT:-${PLUGIN_KEY_CERT}}"
+
 KNOWN_HOSTS="${KNOWN_HOSTS:=${PLUGIN_KNOWN_HOSTS}}"
 
-SOURCE="${SOURCE:-${PLUGIN_SOURCE}}"
-if [ -z "$SOURCE" ]; then
-    echo "'source' must be specified"
+SOURCES="${SOURCES:-${PLUGIN_SOURCES}}"
+SOURCES=$(echo "$SOURCES" | tr ',' ' ')
+if [ -z "$SOURCES" ]; then
+    echo "specify at least one source"
     exit 1
 fi
 
@@ -37,10 +40,19 @@ ARGS=${ARGS:-${PLUGIN_ARGS}}
 # prepare SSH
 
 mkdir -p "$HOME/.ssh"
-keyfile="$HOME/.ssh/id_rsa"
+keyfile="$HOME/.ssh/user_key"
 echo "$SSH_KEY" > "$keyfile"
 chmod 0600 "$keyfile"
 
+echo 'Host *' > "$HOME/.ssh/config"
+echo "  IdentityFile $keyfile" >> "$HOME/.ssh/config"
+
+if [ -n "${SSH_KEY_CERT}" ]; then
+    certfile="$HOME/.ssh/user_key-cert.pub"
+    echo "${SSH_KEY_CERT}" > "$certfile"
+    echo "  CertificateFile $certfile" >> "$HOME/.ssh/config"
+fi
+
 known_hosts_file="${HOME}/.ssh/known_hosts"
 [ -n "${KNOWN_HOSTS}" ] && echo "${KNOWN_HOSTS}" >> "$known_hosts_file"
 [ -f "${known_hosts_file}" ] && chmod 0600 "$known_hosts_file"
@@ -48,4 +60,7 @@ known_hosts_file="${HOME}/.ssh/known_hosts"
 # run rsync
 
 # shellcheck disable=SC2086
-exec rsync $ARGS "${SOURCE}" "${USER}"@"${HOST}":"${TARGET}"
+for SOURCE in $SOURCES; do
+    echo "copying '$SOURCE' to '$TARGET'"
+    rsync $ARGS "${SOURCE}" "${USER}"@"${HOST}":"${TARGET}"
+done