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Ideas for improvements to git log --graph

I will maybe someday get around to dusting off my C and making these changes myself unless someone else does it first.

Make the graph for --topo-order less wiggly

Imagine a long-running development branch periodically merges from master. The git log --graph --all --topo-order is not as simple as it could be, as of git version 1.7.10.4.

It doesn't seem like a big deal in this example, but when you're trying to follow the history trails in ASCII and you've got several different branches displayed at once, it gets difficult quickly.

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How to setup your own CA with OpenSSL

For educational reasons I've decided to create my own CA. Here is what I learned.

First things first

Lets get some context first.

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/usr/libexec/java_home -V command to get the list of installed JDKs.

For example:

Matching Java Virtual Machines (2):
    9.0.4, x86_64:	"Java SE 9.0.4"	/Library/Java/JavaVirtualMachines/jdk-9.0.4.jdk/Contents/Home
    1.8.0_161, x86_64:	"Java SE 8"	/Library/Java/JavaVirtualMachines/jdk1.8.0_161.jdk/Contents/Home

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ssh    -L local_port:service_host:service_port \
       -p ssh_server_port \
       -l ssh_server_username \
       -N \
       ssh_server_host

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ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null
brew install cmake

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Creating virtual environment

python3 -m venv /path/to/new/virtual/environment

NOTE:

• Changed in version 3.5: The use of venv is now recommended for creating virtual environments.
• Deprecated since version 3.6: pyvenv was the recommended tool for creating virtual environments for Python 3.3 and 3.4, and is deprecated in Python 3.6.

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How to Change Open Files Limit on OS X and macOS

This text is the section about OS X Yosemite (which also works for macOS Sierra) from https://docs.basho.com/riak/kv/2.1.4/using/performance/open-files-limit/#mac-os-x

The last time i visited this link it was dead (403), so I cloned it here from the latest snapshot in Archive.org's Wayback Machine https://web.archive.org/web/20170523131633/https://docs.basho.com/riak/kv/2.1.4/using/performance/open-files-limit/

Mac OS X

To check the current limits on your Mac OS X system, run:

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Python3 Virtualenv Setup

Requirements

• Python 3
• Pip 3

$ brew install python3

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• brew install fish
• add /usr/local/bin/fish to /etc/shells
• chsh -s /usr/local/bin/fish

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# See https://github.com/facebookresearch/fastText/blob/master/pretrained-vectors.md

for (( i=1; i<=$#; i++ )); do
    wget -c "https://s3-us-west-1.amazonaws.com/fasttext-vectors/wiki.${!i}.zip"
done

# For example:
# ./download.sh bg el ka hy ru fa es fr de it pt ar tr pl ko

# If stopped it will not re-start automatically, but if re-started it will continue from where it stopped.