imports: Switch to Microsoft GSL implementation

... with two minor code base changes compared to previous
use of gsl-lite:

- dag.hpp: ActionNode::Ptr and ArtifactNode::Ptr are not
  wrapped in gsl::not_null<> anymore, due to lack of support
  for wrapping std::unique_ptr<>. More specifically, the
  move constructor is missing, rendering it impossible to
  use std::vector<>::emplace_back().

- utils/cpp/gsl.hpp: New header file added to implement the
  macros ExpectsAudit() and EnsureAudit(), asserts running
  only in debug builds, which were available in gsl-lite but
  are missing in MS GSL.

1 files changed, 12 insertions, 5 deletions

diff --git a/src/utils/cpp/TARGETS b/src/utils/cpp/TARGETS
index 42d8ae9e..fffb2e7b 100644
--- a/src/utils/cpp/TARGETS
+++ b/src/utils/cpp/TARGETS
@@ -2,21 +2,21 @@
   { "type": ["@", "rules", "CC", "library"]
   , "name": ["hash_combine"]
   , "hdrs": ["hash_combine.hpp"]
-  , "deps": [["@", "gsl-lite", "", "gsl-lite"]]
+  , "deps": [["@", "gsl", "", "gsl"]]
   , "stage": ["src", "utils", "cpp"]
   }
 , "type_safe_arithmetic":
   { "type": ["@", "rules", "CC", "library"]
   , "name": ["type_safe_arithmetic"]
   , "hdrs": ["type_safe_arithmetic.hpp"]
-  , "deps": [["@", "gsl-lite", "", "gsl-lite"]]
+  , "deps": [["@", "gsl", "", "gsl"]]
   , "stage": ["src", "utils", "cpp"]
   }
 , "json":
   { "type": ["@", "rules", "CC", "library"]
   , "name": ["json"]
   , "hdrs": ["json.hpp"]
-  , "deps": [["@", "json", "", "json"], ["@", "gsl-lite", "", "gsl-lite"]]
+  , "deps": ["gsl", ["@", "json", "", "json"], ["@", "gsl", "", "gsl"]]
   , "stage": ["src", "utils", "cpp"]
   }
 , "concepts":
@@ -54,7 +54,7 @@
   , "name": ["tmp_dir"]
   , "hdrs": ["tmp_dir.hpp"]
   , "srcs": ["tmp_dir.cpp"]
-  , "deps": [["@", "gsl-lite", "", "gsl-lite"]]
+  , "deps": [["@", "gsl", "", "gsl"]]
   , "stage": ["src", "utils", "cpp"]
   , "private-deps": [["src/buildtool/file_system", "file_system_manager"]]
   }
@@ -63,11 +63,18 @@
   , "name": ["file_locking"]
   , "hdrs": ["file_locking.hpp"]
   , "srcs": ["file_locking.cpp"]
-  , "deps": [["@", "gsl-lite", "", "gsl-lite"]]
+  , "deps": [["@", "gsl", "", "gsl"]]
   , "stage": ["src", "utils", "cpp"]
   , "private-deps":
     [ ["src/buildtool/file_system", "file_system_manager"]
     , ["src/utils/cpp", "path"]
     ]
   }
+, "gsl":
+  { "type": ["@", "rules", "CC", "library"]
+  , "name": ["gsl"]
+  , "hdrs": ["gsl.hpp"]
+  , "deps": [["@", "gsl", "", "gsl"]]
+  , "stage": ["src", "utils", "cpp"]
+  }
 }