概要

MacPortsをメインに使っているので、Homebrewを標準ではないパス /opt/homebrew にインストールする。

install

$ sudo mkdir /opt/homebrew
$ sudo chown ${USER}:staff /opt/homebrew
$ cd /opt
$ curl -L https://github.com/Homebrew/homebrew/tarball/master | tar xz --strip 1 -C homebrew
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   124    0   124    0     0     31      0 --:--:--  0:00:04 --:--:--    30
100   139    0   139    0     0     34      0 --:--:--  0:00:04 --:--:--  135k
100  194k  100  194k    0     0  39842      0  0:00:05  0:00:05 --:--:--  368k
$ cd /opt/homebrew
$ mv share/doc/homebrew docs

インストール自体は↑で終わり。 /opt/homebrew/binを環境変数PATHに追加すればbrewコマンドが使える。

備考

• https://qiita.com/usamik26/items/601f5612bd3f8a21cc41

基本的には上記のページと同じだが、そのままだと初回の brew update で↓のようにコケるため、 mvコマンドで/opt/homebrew/share/doc/homebrewを/opt/homebrew/docsへ移動している。

$ brew update
Initialized empty Git repository in /opt/homebrew/.git/
remote: Counting objects: 1126, done.
remote: Compressing objects: 100% (1035/1035), done.
remote: Total 1126 (delta 116), reused 378 (delta 49), pack-reused 0
Receiving objects: 100% (1126/1126), 1.21 MiB | 740.00 KiB/s, done.
Resolving deltas: 100% (116/116), done.
From https://github.com/Homebrew/brew
 * [new branch]      master     -> origin/master
HEAD is now at ec0d8fa Merge pull request #3220 from yzguy/yzguy/cask_available_languages_to_info
To restore the stashed changes to /opt/homebrew run:
  'cd /opt/homebrew && git stash pop'
==> Downloading https://homebrew.bintray.com/bottles-portable/portable-ruby-2.3.3.leopard_64.bottle.1.tar.gz
######################################################################## 100.0%
==> Pouring portable-ruby-2.3.3.leopard_64.bottle.1.tar.gz
==> Homebrew has enabled anonymous aggregate user behaviour analytics.
Read the analytics documentation (and how to opt-out) here:
  https://docs.brew.sh/Analytics.html

==> Tapping homebrew/core
Cloning into '/opt/homebrew/Library/Taps/homebrew/homebrew-core'...
remote: Counting objects: 4596, done.
remote: Compressing objects: 100% (4383/4383), done.
remote: Total 4596 (delta 29), reused 340 (delta 6), pack-reused 0
Receiving objects: 100% (4596/4596), 3.83 MiB | 4.37 MiB/s, done.
Resolving deltas: 100% (29/29), done.
Tapped 4374 formulae (4,643 files, 11.9MB)
Already up-to-date.
Error: Could not link:
/opt/homebrew/share/doc/homebrew

Please delete these paths and run `brew update`.

参考

• https://github.com/Homebrew/brew/blob/master/docs/Installation.md#alternative-installs
• https://qiita.com/usamik26/items/601f5612bd3f8a21cc41