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annotate lemuriformes/waiter.sh @ 17:4793f99b73e0

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[lemuriformes] utility functions
author Jeff Hammel <k0scist@gmail.com>
date Sun, 10 Dec 2017 17:42:52 -0800
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1 #!/bin/bash
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2
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3 # parallelize and wait for a set of jobs;
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4 # it's MapReduce for `bash`!
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5
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6 FAIL=0
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7
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8 # See http://jeremy.zawodny.com/blog/archives/010717.html
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9
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10 {{for command in commands}}
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11 {{command}} &
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12 {{endfor}}
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13
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14 # wait for processes
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15 for job in `jobs -p`
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16 do
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17 echo ${job}
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18 wait ${job} || let "FAIL+=1"
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19 done
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20
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21 if [ "${FAIL}" == "0" ]
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22 then
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23 exit 0
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24 fi
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25
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26 echo "${FAIL} failing job(s)"
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27 exit 1