MacPorts install without root privileges

steps.txt

# fetch MacPorts sources
curl -LO https://distfiles.macports.org/MacPorts/MacPorts-2.8.1.tar.gz

# extract them and get into the dir
tar -jxf MacPorts-2.8.1.tar.gz
cd MacPorts-2.8.1

# configure things
## If you want MacPorts to run in a custom prefix, pass in the following arguments: --prefix=/usr/local --with-unsupported-prefix --with-applications-dir=/Applications
## replacing /usr/local with your desired location
./configure --with-no-root-privileges --with-install-user=$USER --with-install-group=staff --silent

# build and install things, using however many performance CPUs are available
# for older versions of macOS, substitute in `machdep.cpu.core_count`
make -s -j `sysctl -n hw.perflevel0.physicalcpu`
make -s -j `sysctl -n hw.perflevel0.physicalcpu` install

# clean up after ourselves
cd ..
rm -rf MacPorts-2.8.1*

# post-install tasks
## Update ports to latest definitions
port selfupdate

## Edit the config to change any other values that you need, such as setting `buildfromsource` to `always`
### if you passed in a custom prefix via `--prefix`, replace /opt/local with your target prefix.
$EDITOR /opt/local/etc/macports/macports.conf

Why try to find out core count by yourself ?

The number of CPUs in my machine may differ from the number of CPUs in your machine

perhaps because install tries to write to PATH writable only by root ?ˇ

in the years since this gist was written, Apple has changed default permissions of various directories. You can make a new directory and install to other locations (/opt, /Users/`whoami`/.usr, etc) as needed.

The number of CPUs in my machine may differ from the number of CPUs in your machine

Allow N jobs at once; **infinite jobs** with no arg.

Isn't infinite jobs = no of cores at a time? Shouldn't need to specify the core

Isn't infinite jobs = no of cores at a time? Shouldn't need to specify the core

What are you hoping to get out of this thread? The gist we're talking on is a set of notes I wrote down for myself, and specifying the number of cores gives me the behavior I'm looking for.