Mike McQuaid ef59a751f4 Improve some brew install messaging. ...

Improve the messaging around `brew install` when there's a possible user
action such as an `upgrade` or `link` and don't tell people to
`install --force` when it's unnecessary.

While I did this, tweak the output and function usage in a couple of
related places.

Some example output before this change:
```
Warning: openssl is a keg-only and another version is linked to opt.
Use `brew install --force` if you want to install this version
Warning: mysql@5.6 is a keg-only and another version is linked to opt.
Use `brew install --force` if you want to install this version
Warning: analog-6.0_1 already installed
Warning: bash-completion@2-2.5 already installed, it's just not linked.
```

Some example output after this change:
```
Error: openssl 1.0.2k is already installed
To upgrade to 1.0.2l, run `brew upgrade openssl`
Warning: mysql@5.6 5.6.36_1 is already installed
Warning: analog 6.0_1 is already installed
Warning: bash-completion@2 2.5 is already installed, it's just not linked.
You can use `brew link bash-completion@2` to link this version.
```

2017-05-27 10:15:37 +01:00

..

--cache.rb

Use module_function for commands.

2016-10-02 00:24:47 +02:00

--cellar.rb

Use module_function for commands.

2016-10-02 00:24:47 +02:00

--env.rb

More deprecations.

2017-04-22 16:28:07 +01:00

--prefix.rb

--prefix: use opt_prefix when available.

2017-02-12 16:17:56 +00:00

--repository.rb

Use module_function for commands.

2016-10-02 00:24:47 +02:00

--version.rb

Use module_function for commands.

2016-10-02 00:24:47 +02:00

analytics.rb

Use docs.brew.sh links.

2017-01-04 11:13:41 +00:00

cask.rb

Add CLI::Options DSL.

2017-05-22 02:51:17 +02:00

cat.rb

Use module_function for commands.

2016-10-02 00:24:47 +02:00

cleanup.rb

Brew cleanup: Continue on error removing keg

2017-03-31 01:44:04 -05:00

command.rb

Use module_function for commands.

2016-10-02 00:24:47 +02:00

commands.rb

Convert puts_columns to puts Formatter.columns.

2016-10-15 17:13:38 +02:00

config.rb

Use module_function for commands.

2016-10-02 00:24:47 +02:00

deps.rb

rubocop: trailing comma in multiline method calls

2017-02-12 15:11:38 +00:00

desc.rb

Update brew's man page formatting and grammar

2017-02-25 17:37:57 -05:00

diy.rb

Use module_function for commands.

2016-10-02 00:24:47 +02:00

doctor.rb

Merge pull request #1145 from reitermarkus/module-function

2016-10-04 10:31:49 +02:00

fetch.rb

Document all short flags.

2017-04-02 10:14:58 +01:00

gist-logs.rb

No if/unless-modifier on multiline blocks.

2016-11-13 23:37:40 +01:00

help.rb

Use docs.brew.sh links.

2017-01-04 11:13:41 +00:00

home.rb

Use module_function for commands.

2016-10-02 00:24:47 +02:00

info.rb

info: fix conflicts formatting.

2017-05-16 10:05:05 +01:00

install.rb

Improve some brew install messaging.

2017-05-27 10:15:37 +01:00

irb.rb

Use a Formulary-like approach to load Casks.

2017-03-16 12:10:19 +01:00

leaves.rb

Use module_function for commands.

2016-10-02 00:24:47 +02:00

link.rb

More deprecations.

2017-04-22 16:28:07 +01:00

linkapps.rb

Add Formatter::pluralize.

2017-03-11 21:12:51 +01:00

list.rb

Install tap command completions and manpages

2017-02-26 15:40:52 -06:00

log.rb

cmd/log: improve output messaging.

2017-03-20 18:20:31 +02:00

migrate.rb

Document all short flags.

2017-04-02 10:14:58 +01:00

missing.rb

docs: fix typo for brew missing

2016-10-30 16:30:40 +00:00

options.rb

Use module_function for commands.

2016-10-02 00:24:47 +02:00

outdated.rb

Document all short flags.

2017-04-02 10:14:58 +01:00

pin.rb

Use module_function for commands.

2016-10-02 00:24:47 +02:00

postinstall.rb

Install etc/var files on postinstall.

2017-05-03 09:00:17 +01:00

prune.rb

prune: don't remove top-level directories.

2016-12-13 01:05:11 +00:00

readall.rb

Update brew's man page formatting and grammar

2017-02-25 17:37:57 -05:00

reinstall.rb

reinstall: perform rename migrations when needed.

2017-03-31 10:01:46 +01:00

search.rb

Add GitHub::search_code method.

2017-04-25 12:29:01 +02:00

sh.rb

Make PATH enumerable.

2017-04-30 21:11:28 +02:00

style.rb

Remove to_s from some Pathnames.

2017-05-08 13:37:28 +02:00

switch.rb

Use module_function for commands.

2016-10-02 00:24:47 +02:00

tap-info.rb

Add Formatter::pluralize.

2017-03-11 21:12:51 +01:00

tap-pin.rb

Use module_function for commands.

2016-10-02 00:24:47 +02:00

tap-unpin.rb

Use module_function for commands.

2016-10-02 00:24:47 +02:00

tap.rb

More deprecations.

2017-04-22 16:28:07 +01:00

uninstall.rb

Document all short flags.

2017-04-02 10:14:58 +01:00

unlink.rb

Update brew's man page formatting and grammar

2017-02-25 17:37:57 -05:00

unlinkapps.rb

Add Formatter::pluralize.

2017-03-11 21:12:51 +01:00

unpack.rb

Document all short flags.

2017-04-02 10:14:58 +01:00

unpin.rb

Use module_function for commands.

2016-10-02 00:24:47 +02:00

untap.rb

Use module_function for commands.

2016-10-02 00:24:47 +02:00

update-report.rb

update-report: don't show new, installed formulae.

2017-04-04 15:15:42 +01:00

update-reset.sh

update-reset: checkout with --force.

2017-01-26 16:29:39 +00:00

update.sh

Allow forcing Homebrew GitHub organisation.

2017-04-25 09:13:36 +01:00

upgrade.rb

upgrade: perform rename migrations when needed.

2017-03-31 10:01:46 +01:00

uses.rb

uses: allow checking deleted formulae.

2017-04-17 15:06:48 +01:00

vendor-install.sh

vendor-install: fix array syntax for old bash

2017-05-23 18:39:35 -07:00