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97a6e27d56
cmake/BuildInfo.cmake runs on every build and rewrites the generated BuildInfo.cpp only when something changed, so a new commit recompiles one file and relinks. The build kind comes from DLU_BUILD_KIND (release/ci/local) or CI=true, defaulting to local. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
52 lines
1.7 KiB
C++
52 lines
1.7 KiB
C++
#ifndef BUILDINFO_H
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#define BUILDINFO_H
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#include <cstdint>
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#include <string_view>
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// What this binary was built from. The values live in BuildInfo.cpp, which cmake/BuildInfo.cmake regenerates on
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// every build (only rewriting it when something changed), so a new commit recompiles that one file and relinks.
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namespace BuildInfo {
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// Stored in 2 bits of Flags().
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enum class eBuildKind : uint8_t {
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UNKNOWN = 0,
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LOCAL = 1,
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CI = 2,
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RELEASE = 3,
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};
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constexpr uint8_t BUILD_KIND_MASK = 0b011;
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constexpr uint8_t DIRTY_FLAG = 0b100;
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extern const uint8_t versionMajor;
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extern const uint8_t versionMinor;
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extern const uint8_t versionPatch;
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extern const eBuildKind buildKind;
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extern const bool dirty; // The build had uncommitted changes to tracked files
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extern const std::string_view commit; // Full hex commit hash, empty without git
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extern const std::string_view branch; // Empty when detached or without git
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extern const std::string_view buildString; // e.g. 3.0.0-experimental+g1a2b3c4d-dirty
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// The build kind in bits 0-1 and the dirty flag in bit 2.
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inline uint8_t Flags() {
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return (static_cast<uint8_t>(buildKind) & BUILD_KIND_MASK) | (dirty ? DIRTY_FLAG : 0);
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}
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// The first 32 bits (8 hex digits) of the commit hash, 0 without git.
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inline uint32_t CommitPrefix() {
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uint32_t value = 0;
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for (size_t i = 0; i < 8 && i < commit.size(); i++) {
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const char c = commit[i];
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uint32_t digit = 0;
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if (c >= '0' && c <= '9') digit = c - '0';
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else if (c >= 'a' && c <= 'f') digit = c - 'a' + 10;
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else if (c >= 'A' && c <= 'F') digit = c - 'A' + 10;
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else return 0;
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value = (value << 4) | digit;
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}
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return commit.size() >= 8 ? value : 0;
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}
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}
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#endif // BUILDINFO_H
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