add 'wheel' to pip completion

src/_pip

@@ -51,6 +51,7 @@ case $state in
       "list:list installed packages"
       "show:show information about installed packages"
       "search:search pypi"
+      "wheel:build wheels from your requirements"
       "zip:zip dividual packages"
       "unzip:unzip undividual packages"
       "bundle:create pybundle"
@@ -66,36 +67,26 @@ case $state in
       $common_ops
     )
 
-    local -a requirement
-    requirement=(
-      {-r,--requirement=}"[install all the packages listed in the given requirements file]:filename:_files"
-    )
-
-    local -a findlink
-    findlink=(
-      {-f,--find-links=}"[URL to look for packages at]:url"
-    )
-
-    local -a local_env
-    local_env=(
-      {-l,--local}"[If in a virtualenv that has global access, do not list globally-installed packages]"
-    )
-
     local -a pi_ops
     pi_ops=(
-      $findlink
       {-i,--index-url=}"[base URL of Python Package Index]:URL"
-      {-M,--use-mirrors}"[use the PyPI mirrors as a fallback in case the main index is down]"
-      "--mirrors=[specific mirror URLs to query when --use-mirrors is used]:URL"
       "--extra-index-url=[extra URLs of package indexes to use in addition to --index-url]:URL"
       "--no-index[ignore package index (only looking at --find-links URLs instead)]"
+      {-f,--find-links=}"[URL to look for packages at]:URL"
+      {-M,--use-mirrors}"[use the PyPI mirrors as a fallback in case the main index is down]"
+      "--mirrors=[specific mirror URLs to query when --use-mirrors is used]:URL"
+      "--allow-external=[allow the installation of externally hosted files]:package"
+      "--allow-all-external[allow the installation of all externally hosted files]"
+      "--no-allow-external[disallow the installation of all externally hosted files]"
+      "--allow-insecure=[allow the installation of insecure and unverifiable files]:package"
+      "--no-allow-insecure[disallow the installation of insecure and unverifiable files]"
     )
 
     case $words[1] in
       install | bundle)
         args+=(
           {-e,--editable=}"[install a package directly from a checkout]:VCS+REPOS_URL[@REV]#egg=PACKAGE"
-          $requirement
+          {-r,--requirement=}"[install all the packages listed in the given requirements file]:filename:_files"
           {-b,--build=}"[unpack packages into DIR]:directory:_directories"
           {-t,--target=}"[install packages into DIR]:directory:_directories"
           {-d,--download=}"[download packages into DIR instead of installing them]:directory:_directories"
@@ -112,22 +103,25 @@ case $state in
           "--user[install using the user scheme]"
           "--egg[install as self contained egg file, like easy_install does]"
           "--root=[Install everything relative to this alternate root directory]:directory:_directories"
+          "--use-wheel[find and prefer wheel archives when searching indexes and find-links locations]"
+          "--pre[include pre-release and development versions]"
+          "--no-clean[don't clean up build directories]"
           $pi_ops
         )
       ;;
 
       uninstall)
         args+=(
-          $requirement
+          {-r,--requirement=}"[install all the packages listed in the given requirements file]:filename:_files"
           {-y,--yes}"[don't ask for confirmation of uninstall deletions]"
         )
       ;;
 
       freeze)
         args+=(
-          $requirement
+          {-r,--requirement=}"[install all the packages listed in the given requirements file]:filename:_files"
-          $findlink
+          {-f,--find-links=}"[URL to look for packages at]:URL"
-          $local_env
+          {-l,--local}"[If in a virtualenv that has global access, do not list globally-installed packages]"
         )
       ;;
 
@@ -136,7 +130,8 @@ case $state in
           {-o,--outdated}"[list outdated packages (excluding editables)]"
           {-u,--uptodated}"[list uptodated packages (excluding editables)]"
           {-e,--editable}"[list editable projects]"
-          $local_env
+          {-l,--local}"[If in a virtualenv that has global access, do not list globally-installed packages]"
+          "--pre[include pre-release and development versions]"
           $pi_ops
         )
       ;;
@@ -149,7 +144,23 @@ case $state in
 
       search)
         args+=(
-          "--index-url[base URL of Python Package Index]:URL"
+          "--index[base URL of Python Package Index]:URL"
+        )
+      ;;
+
+      wheel)
+        args+=(
+          {-w,--wheel-dir=}"[build wheels into DIR, where the default is '<cwd>/wheelhouse']:directory:_directories"
+          "--use-wheel[find and prefer wheel archives when searching indexes and find-links locations]"
+          "--build-option=[extra arguments to be supplied to 'setup.py bdist_wheel']:options"
+          {-r,--requirement=}"[install all the packages listed in the given requirements file]:filename:_files"
+          "--download-cache=[cache downloaded packages in DIR]:directory:_directories"
+          "--no-deps[don't install package dependencies]"
+          {-b,--build=}"[directory to unpack packages into and build in]:directory:_directories"
+          "--global-option=[extra global options to be supplied to the setup.py call before the 'bdist_wheel' command]:options"
+          "--pre[include pre-release and development versions]"
+          "--no-clean[don't clean up build directories]"
+          $pi_ops
         )
       ;;