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19 lines
554 B
19 lines
554 B
4 years ago
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#!/bin/bash
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# Outputs to the stdout a deterministically generated integer in the range 0-4095. The integer is generated using the
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# input strings and SHA1.
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# Usage: hash_build_properties.sh <branch> <build_number>
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# Inputs:
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# - branch: the branch being build
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# - build_number the incrementing number of the build
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BRANCH=$1
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BUILD_NUMBER=$2
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STRING_TO_HASH="$BRANCH-$BUILD_NUMBER"
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SHA1_SUM_HEX=$(sha1sum <<<"$STRING_TO_HASH")
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SHA1_TRUNCATED_HEX=$(cut -c1-3 <<<"$SHA1_SUM_HEX")
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HASHED_STRING=$((0x${SHA1_TRUNCATED_HEX}))
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echo "$HASHED_STRING"
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