Add HOMEBREW_ARTIFACT_DOMAIN option.

If set, this environment variable instructs Homebrew to use the given URL as a
download mirror (e.g. an Artifactory instance) for bottles and binaries.

Closes #387.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

2 files changed, 8 insertions, 0 deletions

diff --git a/Library/Homebrew/download_strategy.rb b/Library/Homebrew/download_strategy.rb
index 4cb1a185a..ec060cef0 100644
--- a/Library/Homebrew/download_strategy.rb
+++ b/Library/Homebrew/download_strategy.rb
@@ -330,6 +330,11 @@ class CurlDownloadStrategy < AbstractFileDownloadStrategy
 
   # Private method, can be overridden if needed.
   def _fetch
+    if ENV["HOMEBREW_ARTIFACT_DOMAIN"]
+      @url.sub!(%r{^((ht|f)tps?://)?}, ENV["HOMEBREW_ARTIFACT_DOMAIN"].chomp("/") + "/")
+      ohai "Downloading from #{@url}"
+    end
+
     urls = actual_urls
     unless urls.empty?
       ohai "Downloading from #{urls.last}"
diff --git a/Library/Homebrew/manpages/brew.1.md.erb b/Library/Homebrew/manpages/brew.1.md.erb
index 21fc4f81a..affac9295 100644
--- a/Library/Homebrew/manpages/brew.1.md.erb
+++ b/Library/Homebrew/manpages/brew.1.md.erb
@@ -105,6 +105,9 @@ can take several different forms:
   * `HOMEBREW_BOTTLE_DOMAIN`:
     If set, instructs Homebrew to use the given URL as a download mirror for bottles.
 
+  * `HOMEBREW_ARTIFACT_DOMAIN`:
+    If set, instructs Homebrew to use the given URL as a download mirror for bottles and binaries.
+
   * `HOMEBREW_BROWSER`:
     If set, uses this setting as the browser when opening project homepages,
     instead of the OS default browser.