1 files changed, 157 insertions, 0 deletions
diff --git a/ssync-index b/ssync-index
new file mode 100755
index 0000000..e19ee78
--- /dev/null
+++ b/ssync-index
@@ -0,0 +1,157 @@
+#!/usr/bin/env sh
+
+USAGE="ssync-index [options] [CONFIG_FILE]
+    OPTIONS
+        -k [KEY_FILE] override conigured key file
+        -o [OUTPUT_DIR] override configured index output dir
+        -l local only
+        -r remote only
+        -v verbose logging
+        -h print this message"
+
+# HELPER METHODS
+function verbose_log {
+    if [ ! -z "$VERBOSE_FLAG" ]; then
+	echo "$1"
+    fi
+}
+function lines {
+    wc -l $1 | cut -d' ' -f1
+}
+function get_default_index_dir {
+    local cache_path=ssync/index/
+    local cache_dir=
+    if [ ! -z "$XDG_CACHE_DIR" ]; then
+	cache_dir=$XDG_CACHE_DIR/$cache_path
+    else
+	cache_dir=/tmp/
+    fi
+
+    mkdir -p $cache_dir/$cache_path
+    echo $cache_dir/$cache_path
+}
+
+# GLOBAL VALUES
+DEFAULT_INDEX_WINDOW=86400
+LOCAL_ONLY_FLAG=
+REMOTE_ONLY_FLAG=
+VERBOSE_FLAG=
+KEY_FILE_FLAG=
+KEY_FILE_ARG=
+OUTPUT_DIR_FLAG=
+OUTPUT_DIR_ARG=
+
+# OPTIONS PARSING
+while getopts "hvlro:k:" opt; do
+    case "${opt}" in
+	h) echo "$USAGE"
+	   exit 1
+	   ;;
+	o) OUTPUT_DIR_FLAG=1
+	   OUTPUT_DIR_ARG="$OPTARG"
+	   ;;
+	k) KEY_FILE_FLAG=1
+	   KEY_FILE_ARG="$OPTARG"
+	   ;;
+	l) LOCAL_ONLY_FLAG=1
+	   ;;
+	r) REMOTE_ONLY_FLAG=1
+	   ;;
+	v) VERBOSE_FLAG=1
+	   ;;
+    esac
+done
+
+shift $(($OPTIND -1))
+
+if [ $# -eq 0 ]; then
+    echo "$USAGE"
+    exit 1
+
+fi
+
+CONFIG_FILE=$1
+
+# CONFIG PARSING
+if [ -z "$CONFIG_FILE" ]; then
+    echo "CONFIG_FILE is missing."
+    exit 1
+fi
+
+if [ ! -f $CONFIG_FILE ]; then
+    echo "$CONFIG_FILE does not exist."
+    exit 1
+fi
+
+source $CONFIG_FILE
+
+# CONFIG VALIDATION
+if [ -z "$remote_host" ]; then
+    echo "Config is missing remote_host"
+    exit 1
+fi
+
+if [ -z "$remote_root_dir" ]; then
+    echo "Config is missing remote_root_dir"
+    exit 1
+fi
+
+if [ -z "$keyfile" ]; then
+    echo "Config is missing keyfile"
+    exit 1
+elif [ ! -f "$keyfile" ]; then
+    echo "Configured keyfile '$keyfile' does not exist"
+    exit 1
+fi
+
+if [ -z "$local_root_dir" ]; then
+    echo "Config is missing local_root_dir"
+    exit 1
+elif [ ! -d "$local_root_dir" ]; then
+    echo "Configured local_root_dir '$local_root_dir' does not exist"
+    exit 1
+fi
+
+# VALUE SETTING
+
+if [ -z "$index_window_s" ]; then
+    index_window_s=$DEFAULT_INDEX_WINDOW
+fi
+
+local_index_file=
+remote_index_file=
+if [ ! -z "$OUTPUT_DIR_FLAG" ]; then
+    index_dir=$OUTPUT_DIR_ARG
+fi
+
+if [ ! -z "$index_dir" ]; then
+    if [ ! -d "$index_dir" ]; then
+	echo "Configured index_dir '$index_dir' does not exist"
+	exit 1
+    fi
+else
+  index_dir=$(get_default_index_dir)
+fi
+
+# RUN INDEXING
+
+ts=$(date -u +%s)
+local_index_file=${index_dir}/${ts}_local.idx
+remote_index_file=${index_dir}/${ts}_remote.idx
+newermt=$(date -d "$index_window_s seconds ago" -u -Is)
+verbose_log "Targetting files from $index_window_s seconds ago: $newermt"
+
+# index remote host relative to your fetch dir
+if [ -z "$LOCAL_ONLY_FLAG" ]; then
+    verbose_log "Generating remote index from ${remote_root_dir} to ${remote_index_file}"
+    ssh -i $keyfile $remote_host \
+	"find ${remote_root_dir} -type f -newermt $newermt -exec realpath {} \;" > $remote_index_file
+    verbose_log "Indexed $(lines $remote_index_file) remote files"
+fi
+
+# index local filenames ONLY
+if [ -z "$REMOTE_ONLY_FLAG" ]; then
+    verbose_log "Generate local index from ${local_root_dir} to ${local_index_file}"
+    find ${local_root_dir} -type f -exec basename {} \; > $local_index_file
+    verbose_log "Indexed $(lines $local_index_file) local files"
+fi