chalstrick

git init subm
touch subm/a
git -C subm add a
git -C subm commit -m initSubm

git init root
git -C root submodule add ../subm
git -C root commit -m addingSubm

echo forMaster >>root/subm/a

chalstrick

set -x
jgit --version
rm -fr gerrit.src.git gerrit.dst.git gerrit.client
git clone --bare --mirror https://gerrit.googlesource.com/gerrit gerrit.dst.git
cp -r gerrit.dst.git gerrit.dst.git.backup
git clone --bare --mirror gerrit.dst.git gerrit.src.git
git clone gerrit.src.git gerrit.client
( cd gerrit.client; date >>README.md; git add README.md; git commit -m "modify README.md"; git push origin; )
( cd gerrit.src.git; time jgit push origin HEAD:refs/heads/master; )
rm -fr gerrit.dst.git

chalstrick

import java.util.Objects;

public class TestHashPerformance {
  private static final int N = 10000000;

  public static void main(String args[]) {
    int r[] = new int[N];
    long start = System.currentTimeMillis();
    long n1=0, n2=N;
    for (int i = 0; i < N; i++) {

chalstrick

import java.io.File;
import java.io.IOException;
import java.nio.file.FileVisitResult;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.SimpleFileVisitor;
import java.nio.file.attribute.BasicFileAttributes;

import org.eclipse.jgit.api.Git;

chalstrick

#!/bin/bash
#
# Sets up a lot of repos to test git-checkout operations. Setup test repos for all (?) possible
# combinations of contents in merge commit, index, workingtree and also for all combinations 
# of skip-worktree bit and .git/info/sparse-checkout content
# After the repos are setup try to checkout and print status regarding worktree content, HEAD
# 
# Requires that there is an executable 'jgit' in $PATH which is the command-line version 
#
# usage: testAllCheckoutSituations.sh [-jgit]

chalstrick

git init subRepo
cd subRepo/
touch a
git add a
git commit -m addA
cd ..

git init rootRepo
cd rootRepo/
touch b

chalstrick

rm -fr writingClient*/ readingClient*/ server/
mkdir server
git init --bare server/repo.git
git daemon --base-path=server --export-all --enable=receive-pack &
git clone git://127.0.0.1/repo.git writingClient
cd writingClient
touch a
git add a
git commit -m add_a
git push origin HEAD:master

chalstrick

touch a b c
git add a b c
git commit -m init
git branch side
echo master >a
git commit -a -m m1
git checkout side
echo side >b
git commit -a -m s1
git merge --no-commit master

chalstrick

uname -a
git --version
[ -x ./gin ] || curl -O https://raw.githubusercontent.com/chalstrick/gin/master/gin && chmod +x gin
git init test
cd test
blobId=$(echo "test content" | git hash-object -w --stdin)
goodTree=$(echo -e "100644 blob $blobId\tf" | git mktree)
tree1Id=$(echo -e "100644 blob $blobId\tRAGGED~1.H" | git mktree)
tree2Id=$(echo -e "040000 tree $goodTree\ta\n040000 tree $tree1Id\tb\n040000 tree $goodTree\tc" | git mktree)
commitId=$(echo 'initial commit' | git commit-tree $tree2Id)

chalstrick

#!/bin/bash
set -x

# we are working against linux repo (50000 versioned files), measure time of native git status
cd ../linux
git checkout v4.2
git ls-files | wc -l
git remote -v
echo "*.txt text" >.gitattributes
echo "*.sh text" >arch/.gitattributes