Merge pull request #3084 from laughedelic/cask/search-offline

Offline cask search and listing all available casks 

3 files changed, 63 insertions, 19 deletions

diff --git a/Library/Homebrew/cask/lib/hbc/cli/search.rb b/Library/Homebrew/cask/lib/hbc/cli/search.rb
index e89dced92..d56d0c81f 100644
--- a/Library/Homebrew/cask/lib/hbc/cli/search.rb
+++ b/Library/Homebrew/cask/lib/hbc/cli/search.rb
@@ -2,8 +2,12 @@ module Hbc
   class CLI
     class Search < AbstractCommand
       def run
-        results = self.class.search(*args)
-        self.class.render_results(*results)
+        if args.empty?
+          puts Formatter.columns(CLI.nice_listing(Hbc.all_tokens))
+        else
+          results = self.class.search(*args)
+          self.class.render_results(*results)
+        end
       end
 
       def self.extract_regexp(string)
@@ -15,8 +19,17 @@ module Hbc
       end
 
       def self.search_remote(query)
-        matches = GitHub.search_code(user: "caskroom", path: "Casks",
-                                     filename: query, extension: "rb")
+        matches = begin
+          GitHub.search_code(
+            user: "caskroom",
+            path: "Casks",
+            filename: query,
+            extension: "rb",
+          )
+        rescue GitHub::Error => error
+          opoo "Error searching on GitHub: #{error}\n"
+          []
+        end
         matches.map do |match|
           tap = Tap.fetch(match["repository"]["full_name"])
           next if tap.installed?
diff --git a/Library/Homebrew/manpages/brew-cask.1.md b/Library/Homebrew/manpages/brew-cask.1.md
index bfb9cd7a5..715d8fd77 100644
--- a/Library/Homebrew/manpages/brew-cask.1.md
+++ b/Library/Homebrew/manpages/brew-cask.1.md
@@ -1,5 +1,5 @@
 brew-cask(1) - a friendly binary installer for macOS
-========================================================
+====================================================
 
 ## SYNOPSIS
 
@@ -85,7 +85,7 @@ names, and other aspects of this manual are still subject to change.
 
     If <token> is given, summarize the staged files associated with the
     given Cask.
-    
+
   * `outdated` [--greedy] [--verbose|--quiet] [ <token> ...]:
     Without token arguments, display all the installed Casks that have newer
     versions available in the tap; otherwise check only the tokens given
@@ -101,9 +101,10 @@ names, and other aspects of this manual are still subject to change.
     Reinstall the given Cask.
 
   * `search` or `-S` [<text> | /<regexp>/]:
-    Without an argument, display all Casks available for install; otherwise
-    perform a substring search of known Cask tokens for <text> or, if the
-    text is delimited by slashes (/<regexp>/), it is interpreted as a
+    Without an argument, display all locally available Casks for install; no
+    online search is performed.
+    Otherwise perform a substring search of known Cask tokens for <text> or,
+    if the text is delimited by slashes (/<regexp>/), it is interpreted as a
     Ruby regular expression.
 
   * `style` [--fix] [ <token> ... ]:
@@ -255,7 +256,7 @@ Environment variables specific to Homebrew-Cask:
                export HOMEBREW_CASK_OPTS='--appdir=~/Applications --fontdir=/Library/Fonts'
 
 Other environment variables:
-           
+
   * `SUDO_ASKPASS`:
     When this variable is set, Homebrew-Cask will call `sudo`(8) with the `-A` option.
 
diff --git a/Library/Homebrew/test/cask/cli/search_spec.rb b/Library/Homebrew/test/cask/cli/search_spec.rb
index e237ad464..6dc980590 100644
--- a/Library/Homebrew/test/cask/cli/search_spec.rb
+++ b/Library/Homebrew/test/cask/cli/search_spec.rb
@@ -22,16 +22,36 @@ describe Hbc::CLI::Search, :cask do
     EOS
   end
 
+  it "returns matches even when online search failed" do
+    allow(GitHub).to receive(:search_code).and_raise(GitHub::Error.new("reason"))
+    expect {
+      Hbc::CLI::Search.run("local")
+    }.to output(<<-EOS.undent).to_stdout
+      local-caffeine
+      local-transmission
+    EOS
+    .and output(/^Warning: Error searching on GitHub: reason/).to_stderr
+  end
+
   it "shows that there are no Casks matching a search term that did not result in anything" do
     expect {
       Hbc::CLI::Search.run("foo-bar-baz")
-    }.to output("No Cask found for \"foo-bar-baz\".\n").to_stdout.as_tty
+    }.to output(<<-EOS.undent).to_stdout.as_tty
+      No Cask found for "foo-bar-baz".
+    EOS
   end
 
-  it "lists all available Casks with no search term" do
-    expect {
-      Hbc::CLI::Search.run
-    }.to output(/local-caffeine/).to_stdout.as_tty
+  it "doesn't output anything to non-TTY stdout when there are no matches" do
+    expect { Hbc::CLI::Search.run("foo-bar-baz") }
+      .to not_to_output.to_stdout
+      .and not_to_output.to_stderr
+  end
+
+  it "lists all Casks available offline with no search term" do
+    allow(GitHub).to receive(:search_code).and_raise(GitHub::Error.new("reason"))
+    expect { Hbc::CLI::Search.run }
+      .to output(/local-caffeine/).to_stdout.as_tty
+      .and not_to_output.to_stderr
   end
 
   it "ignores hyphens in search terms" do
@@ -55,19 +75,29 @@ describe Hbc::CLI::Search, :cask do
   it "accepts a regexp argument" do
     expect {
       Hbc::CLI::Search.run("/^local-c[a-z]ffeine$/")
-    }.to output("==> Regexp Matches\nlocal-caffeine\n").to_stdout.as_tty
+    }.to output(<<-EOS.undent).to_stdout.as_tty
+      ==> Regexp Matches
+      local-caffeine
+    EOS
   end
 
-  it "Returns both exact and partial matches" do
+  it "returns both exact and partial matches" do
     expect {
       Hbc::CLI::Search.run("test-opera")
-    }.to output(/^==> Exact Match\ntest-opera\n==> Partial Matches\ntest-opera-mail/).to_stdout.as_tty
+    }.to output(<<-EOS.undent).to_stdout.as_tty
+      ==> Exact Match
+      test-opera
+      ==> Partial Matches
+      test-opera-mail
+    EOS
   end
 
   it "does not search the Tap name" do
     expect {
       Hbc::CLI::Search.run("caskroom")
-    }.to output(/^No Cask found for "caskroom"\.\n/).to_stdout.as_tty
+    }.to output(<<-EOS.undent).to_stdout.as_tty
+      No Cask found for "caskroom".
+    EOS
   end
 
   it "doesn't highlight packages that aren't installed" do