Add --existing|-e option to bdep-{init,new} -C and bdep-config create modes

With this option bdep initializes a bpkg configuration based on an existing
build system configuration instead of creating a new one.

1 files changed, 11 insertions, 0 deletions

diff --git a/bdep/project.cli b/bdep/project.cli
index d19847a..bcf5cd5 100644
--- a/bdep/project.cli
+++ b/bdep/project.cli
@@ -43,6 +43,17 @@ namespace bdep
        synchronized."
     }
 
+    // These two a really just convenience aliases since they can be specified
+    // as part of <cfg-args> but would require `--`, for example:
+    //
+    // bdep ... -- --wipe cc config.cxx=g++
+
+    bool --existing|-e
+    {
+      "Initialize a \cb{bpkg} configuration based on an existing build system
+       configuration."
+    }
+
     bool --wipe
     {
       "Wipe the configuration directory clean before creating the new