44 lines
877 B
Bash
Executable File
44 lines
877 B
Bash
Executable File
#!/usr/bin/env bash
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set -Eeuo pipefail
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# Increment when package payload/installation semantics change without a source commit.
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PACKAGING_REVISION=2
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log() {
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printf '%s %s\n' "$(date -u '+%Y-%m-%dT%H:%M:%SZ')" "$*"
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}
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fatal() {
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log "ERROR: $*" >&2
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exit 1
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}
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require_cmd() {
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command -v "$1" >/dev/null 2>&1 || fatal "required command not found: $1"
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}
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trim_trailing_slash() {
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local value=$1
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while [[ "$value" == */ ]]; do value=${value%/}; done
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printf '%s' "$value"
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}
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yaml_quote() {
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python3 - "$1" <<'PY'
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import json, sys
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print(json.dumps(sys.argv[1]))
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PY
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}
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read_first_field() {
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local file=$1 key=$2
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awk -v key="$key" 'BEGIN{IGNORECASE=1} $0 ~ "^" key ":[[:space:]]*" {sub(/^[^:]+:[[:space:]]*/, ""); print; exit}' "$file"
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}
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atomic_write() {
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local path=$1
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local tmp="${path}.tmp.$$"
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cat > "$tmp"
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mv -f "$tmp" "$path"
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}
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