Add DUNE_PROFILE environment variable

Signed-off-by: Rudi Grinberg <rudi.grinberg@gmail.com>
ocaml · Feb 4, 2019 · 4389ce0 · 4389ce0
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diff --git a/CHANGES.md b/CHANGES.md
@@ -119,6 +119,9 @@ unreleased
   was prepending paths and thus `$PKG_CONFIG_PATH` set by users could have been
   overridden by homebrew installed libraries (#1785, @andreypopp)
 
+- Add `DUNE_PROFILE` environment variable to easily set the profile. (..,
+  @rgrinberg)
+
 1.6.2 (05/12/2018)
 ------------------
 

diff --git a/bin/common.ml b/bin/common.ml
@@ -259,9 +259,12 @@ let term =
           `Error
             (true, "--dev is no longer accepted as it is now the default.")
       and profile =
+        let doc =
+          "Build profile. dev if unspecified or release if -p is set." in
         Arg.(value
              & opt (some string) None
              & info ["profile"] ~docs
+                 ~env:(Arg.env_var ~doc "DUNE_PROFILE")
                  ~doc:
                    (sprintf
                       {|Select the build profile, for instance $(b,dev) or