pull: optionally warn (not die) on bottle publish failure.

This is useful when you're pulling PRs where individual bottles can't be
uploaded/built but you still want to pull the PR as a whole anyway.

Library/Homebrew/dev-cmd/pull.rb

-#:  * `pull` [`--bottle`] [`--bump`] [`--clean`] [`--ignore-whitespace`] [`--resolve`] [`--branch-okay`] [`--no-pbcopy`] [`--no-publish`] <patch-source> [<patch-source>]:
+#:  * `pull` [`--bottle`] [`--bump`] [`--clean`] [`--ignore-whitespace`] [`--resolve`] [`--branch-okay`] [`--no-pbcopy`] [`--no-publish`] [`--warn-on-publish-failure`] <patch-source> [<patch-source>]:
+#:
 #:    Gets a patch from a GitHub commit or pull request and applies it to Homebrew.
 #:    Optionally, installs the formulae changed by the patch.
 #:
@@ -37,6 +38,9 @@
 #:    clipboard.
 #:
 #:    If `--no-publish` is passed, do not publish bottles to Bintray.
+#:
+#:    If `--warn-on-publish-failure` was passed, do not exit if there's a
+#:    failure publishing bottles on Bintray.
 
 require "net/http"
 require "net/https"
@@ -264,7 +268,7 @@ module Homebrew
       changed_formulae_names.each do |name|
         f = Formula[name]
         next if f.bottle_unneeded? || f.bottle_disabled?
-        publish_bottle_file_on_bintray(f, bintray_creds)
+        next unless publish_bottle_file_on_bintray(f, bintray_creds)
         published << f.full_name
       end
     else
@@ -425,7 +429,7 @@ module Homebrew
     end
     unless info.bottle_info_any
       opoo "No bottle defined in formula #{package}"
-      return
+      return false
     end
     version = info.pkg_version
     ohai "Publishing on Bintray: #{package} #{version}"
@@ -434,6 +438,11 @@ module Homebrew
          "-H", "Content-Type: application/json",
          "-d", '{"publish_wait_for_secs": 0}',
          "https://api.bintray.com/content/homebrew/#{repo}/#{package}/#{version}/publish"
+    true
+  rescue => e
+    raise unless ARGV.include?("--warn-on-publish-failure")
+    onoe e
+    false
   end
 
   # Formula info drawn from an external "brew info --json" call

docs/Manpage.md

@@ -746,7 +746,8 @@ With `--verbose` or `-v`, many commands print extra debugging information. Note
     Additionally, the date used in new manpages will match those in the existing
     manpages (to allow comparison without factoring in the date).
 
-  * `pull` [`--bottle`] [`--bump`] [`--clean`] [`--ignore-whitespace`] [`--resolve`] [`--branch-okay`] [`--no-pbcopy`] [`--no-publish`] <var>patch-source</var> [<var>patch-source</var>]:
+  * `pull` [`--bottle`] [`--bump`] [`--clean`] [`--ignore-whitespace`] [`--resolve`] [`--branch-okay`] [`--no-pbcopy`] [`--no-publish`] [`--warn-on-publish-failure`] <var>patch-source</var> [<var>patch-source</var>]:
+
     Gets a patch from a GitHub commit or pull request and applies it to Homebrew.
     Optionally, installs the formulae changed by the patch.
 
@@ -786,6 +787,9 @@ With `--verbose` or `-v`, many commands print extra debugging information. Note
 
     If `--no-publish` is passed, do not publish bottles to Bintray.
 
+    If `--warn-on-publish-failure` was passed, do not exit if there's a
+    failure publishing bottles on Bintray.
+
   * `release-notes` [`--markdown`] [<var>previous_tag</var>] [<var>end_ref</var>]:
     Output the merged pull requests on Homebrew/brew between two Git refs.
     If no <var>previous_tag</var> is provided it defaults to the newest tag.

manpages/brew.1

@@ -770,7 +770,9 @@ Generate Homebrew\'s manpages\.
 If \fB\-\-fail\-if\-changed\fR is passed, the command will return a failing status code if changes are detected in the manpage outputs\. This can be used for CI to be notified when the manpages are out of date\. Additionally, the date used in new manpages will match those in the existing manpages (to allow comparison without factoring in the date)\.
 .
 .TP
-\fBpull\fR [\fB\-\-bottle\fR] [\fB\-\-bump\fR] [\fB\-\-clean\fR] [\fB\-\-ignore\-whitespace\fR] [\fB\-\-resolve\fR] [\fB\-\-branch\-okay\fR] [\fB\-\-no\-pbcopy\fR] [\fB\-\-no\-publish\fR] \fIpatch\-source\fR [\fIpatch\-source\fR]
+\fBpull\fR [\fB\-\-bottle\fR] [\fB\-\-bump\fR] [\fB\-\-clean\fR] [\fB\-\-ignore\-whitespace\fR] [\fB\-\-resolve\fR] [\fB\-\-branch\-okay\fR] [\fB\-\-no\-pbcopy\fR] [\fB\-\-no\-publish\fR] [\fB\-\-warn\-on\-publish\-failure\fR] \fIpatch\-source\fR [\fIpatch\-source\fR]:
+.
+.IP
 Gets a patch from a GitHub commit or pull request and applies it to Homebrew\. Optionally, installs the formulae changed by the patch\.
 .
 .IP
@@ -812,6 +814,9 @@ If \fB\-\-no\-pbcopy\fR is passed, do not copy anything to the system clipboard\
 .IP
 If \fB\-\-no\-publish\fR is passed, do not publish bottles to Bintray\.
 .
+.IP
+If \fB\-\-warn\-on\-publish\-failure\fR was passed, do not exit if there\'s a failure publishing bottles on Bintray\.
+.
 .TP
 \fBrelease\-notes\fR [\fB\-\-markdown\fR] [\fIprevious_tag\fR] [\fIend_ref\fR]
 Output the merged pull requests on Homebrew/brew between two Git refs\. If no \fIprevious_tag\fR is provided it defaults to the newest tag\. If no \fIend_ref\fR is provided it defaults to \fBorigin/master\fR\.