Pavan Balaji
b2e6fbd0ae
script generated to consistently point to the top-level copyright. Signed-off-by: Pavan Balaji <balaji@anl.gov>
49 linhas
1.7 KiB
Bash
Arquivo Executável
49 linhas
1.7 KiB
Bash
Arquivo Executável
#! /usr/bin/env bash
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##
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## Copyright (C) by Argonne National Laboratory
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## See COPYRIGHT in top-level directory
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##
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max_abbrev=12
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scale=10
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total=`git rev-list --all | wc -l`
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echo "Conflicts:"
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echo "Format: [abbrev length]: number of conflicts / total number of refs (percentage conflicts)"
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for ((x = 1 ; x <= ${max_abbrev} ; x++)) ; do
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conflicts=`git rev-list --all --abbrev=$x --abbrev-commit | sort | uniq -D -w$x | wc -l`
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percent=`echo "scale=$scale ; 100 * $conflicts / $total" | bc | awk '{ printf("%1.2f\n", $0); }'`
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echo " [$x]: $conflicts / $total ($percent %)"
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if test "$conflicts" = "0" ; then break ; fi
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done
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##
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## probability calculation is based on this random link, that I found
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## online:
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## http://blog.cuviper.com/2013/11/10/how-short-can-git-abbreviate/
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##
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## I have not verified the accuracy of the calculation at that link,
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## but if it is online, it must be true, of course. ;-)
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##
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min_abbrev=$x
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echo
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echo "Probability of collision on your next commit:"
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echo "Format: [abbrev length]: probability of collision"
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for ((x = ${min_abbrev}; x <= ${max_abbrev} ; x++)) ; do
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percent=`echo "scale=$scale ; 100 * ($total) / (16 ^ $x)" | bc | awk '{ printf("%1.4f\n", $0); }'`
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echo " [$x]: $percent %"
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done
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commits_last_year=`git rev-list --all --since="1 year ago" | wc -l`
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echo
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echo "Probability of collision in the next year (based on commits last year):"
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echo "Format: [abbrev length]: probability of collision"
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for ((x = ${min_abbrev}; x <= ${max_abbrev} ; x++)) ; do
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percent=`echo "scale=$scale ; 100 * (1 - ((1 - ($total / (16 ^ $x))) ^ ${commits_last_year}))" | bc | awk '{ printf("%1.4f\n", $0); }'`
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echo " [$x]: $percent %"
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done
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