mirror of
https://github.com/gotenberg/gotenberg.git
synced 2026-07-02 08:27:41 +08:00
Julien Neuhart
35 lines
1.1 KiB
Bash
35 lines
1.1 KiB
Bash
#!/usr/bin/env bash
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# Captures the version of a backing binary into a per-module file that the
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# running Gotenberg process reads via gotenberg.BuildVersion, so it never spawns
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# the binary just to report a version. This keeps cold start and the first
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# request cheap, which matters on serverless platforms.
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#
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# Failure-tolerant by design: a probe that errors writes an empty file, and the
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# runtime falls back to detecting the version live. A failing probe must never
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# fail the image build.
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#
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# Usage: capture-version.sh <output-dir> <module-id> <bin> [args...]
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set -u
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dir="$1"
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id="$2"
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shift 2
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mkdir -p "$dir"
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# Run the probe once. On failure, keep going with empty output.
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raw="$("$@" 2>/dev/null)" || raw=""
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case "$id" in
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pdfcpu)
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# pdfcpu prints "pdfcpu: <version>"; keep only the part the runtime parser
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# keeps so the recorded value matches the live-detection fallback.
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version="$(printf '%s\n' "$raw" | grep -m1 '^pdfcpu:' | sed 's/^pdfcpu:[[:space:]]*//')"
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;;
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*)
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version="$(printf '%s\n' "$raw" | head -n1)"
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;;
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esac
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printf '%s' "$version" | tr -d '\r' >"$dir/$id"
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