first commit

scripts/lib.sh

@@ -0,0 +1,40 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+
+log() {
+    printf '%s %s\n' "$(date -u '+%Y-%m-%dT%H:%M:%SZ')" "$*"
+}
+
+fatal() {
+    log "ERROR: $*" >&2
+    exit 1
+}
+
+require_cmd() {
+    command -v "$1" >/dev/null 2>&1 || fatal "required command not found: $1"
+}
+
+trim_trailing_slash() {
+    local value=$1
+    while [[ "$value" == */ ]]; do value=${value%/}; done
+    printf '%s' "$value"
+}
+
+yaml_quote() {
+    python3 - "$1" <<'PY'
+import json, sys
+print(json.dumps(sys.argv[1]))
+PY
+}
+
+read_first_field() {
+    local file=$1 key=$2
+    awk -v key="$key" 'BEGIN{IGNORECASE=1} $0 ~ "^" key ":[[:space:]]*" {sub(/^[^:]+:[[:space:]]*/, ""); print; exit}' "$file"
+}
+
+atomic_write() {
+    local path=$1
+    local tmp="${path}.tmp.$$"
+    cat > "$tmp"
+    mv -f "$tmp" "$path"
+}