86 lines
2.1 KiB
Bash
86 lines
2.1 KiB
Bash
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#!/bin/sh
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# Inflate the size of an EXISTING repo.
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#
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# This script should be run inside the worktree of a TEST repo.
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# It will use the contents of the current HEAD to generate a
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# commit containing copies of the current worktree such that the
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# total size of the commit has at least <target_size> files.
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#
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# Usage: [-t target_size] [-b branch_name]
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set -e
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target_size=10000
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branch_name=p0006-ballast
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ballast=ballast
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while test "$#" -ne 0
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do
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case "$1" in
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-b)
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shift;
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test "$#" -ne 0 || { echo 'error: -b requires an argument' >&2; exit 1; }
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branch_name=$1;
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shift ;;
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-t)
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shift;
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test "$#" -ne 0 || { echo 'error: -t requires an argument' >&2; exit 1; }
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target_size=$1;
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shift ;;
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*)
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echo "error: unknown option '$1'" >&2; exit 1 ;;
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esac
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done
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git ls-tree -r HEAD >GEN_src_list
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nr_src_files=$(cat GEN_src_list | wc -l)
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src_branch=$(git symbolic-ref --short HEAD)
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echo "Branch $src_branch initially has $nr_src_files files."
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if test $target_size -le $nr_src_files
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then
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echo "Repository already exceeds target size $target_size."
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rm GEN_src_list
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exit 1
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fi
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# Create well-known branch and add 1 file change to start
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# if off before the ballast.
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git checkout -b $branch_name HEAD
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echo "$target_size" > inflate-repo.params
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git add inflate-repo.params
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git commit -q -m params
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# Create ballast for in our branch.
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copy=1
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nr_files=$nr_src_files
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while test $nr_files -lt $target_size
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do
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sed -e "s| | $ballast/$copy/|" <GEN_src_list |
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git update-index --index-info
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nr_files=$(expr $nr_files + $nr_src_files)
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copy=$(expr $copy + 1)
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done
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rm GEN_src_list
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git commit -q -m "ballast"
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# Modify 1 file and commit.
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echo "$target_size" >> inflate-repo.params
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git add inflate-repo.params
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git commit -q -m "ballast plus 1"
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nr_files=$(git ls-files | wc -l)
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# Checkout master to put repo in canonical state (because
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# the perf test may need to clone and enable sparse-checkout
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# before attempting to checkout a commit with the ballast
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# (because it may contain 100K directories and 1M files)).
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git checkout $src_branch
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echo "Repository inflated. Branch $branch_name has $nr_files files."
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exit 0
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