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Add support for heroku dyno metadata env variables #4

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Add support for heroku dyno metadata env variables #4

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8 changes: 7 additions & 1 deletion README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -60,9 +60,15 @@ Unfortunately Heroku [removes](https://devcenter.heroku.com/articles/slug-compil
the .git directory during slug compilation which doesn't make it possible to
view the current deployed SHA or branch.

The one workaround is to set the GIT_SHA and GIT_BRANCH ENV variables within
One workaround is to set the GIT_SHA and GIT_BRANCH ENV variables within
your deploy process.

An alternative workaround is to use the runtime dyno metadata lab flag:

$ heroku labs:enable runtime-dyno-metadata -a <app name>

Then, Peek can display the current Heroku release and sha.

## Contributing

1. Fork it
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8 changes: 5 additions & 3 deletions lib/peek/views/git.rb
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Expand Up @@ -26,14 +26,16 @@ def nwo?
!!@nwo
end

# Fetch the current branch name.
# Fetch the current branch name or heroku release version.
def branch_name
@branch_name ||= ENV['GIT_BRANCH'] || `git rev-parse --abbrev-ref HEAD`.chomp
@branch_name ||= ENV['GIT_BRANCH'] || ENV['HEROKU_RELEASE_VERSION']
@branch_name ||= `git rev-parse --abbrev-ref HEAD`.chomp
end

# Fetch the current sha if one isn't present.
def sha
@sha ||= ENV['GIT_SHA'] || `git rev-parse HEAD`.chomp
@sha ||= ENV['HEROKU_SLUG_COMMIT'] || ENV['GIT_SHA']
@sha ||= `git rev-parse HEAD`.chomp
end

def short_sha
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