diff options
author | Boris Kolpackov <boris@codesynthesis.com> | 2016-01-05 11:55:15 +0200 |
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committer | Boris Kolpackov <boris@codesynthesis.com> | 2016-01-05 11:55:15 +0200 |
commit | 9fb791e9fad6c63fc1dac49f4d05ae63b8a3db9b (patch) | |
tree | d60322d4382ca5f97b676c5abe2e39524f35eab4 /build2/config/utility.cxx | |
parent | f159b1dac68c8714f7ba71ca168e3b695891aad9 (diff) |
Rename build directory/namespace to build2
Diffstat (limited to 'build2/config/utility.cxx')
-rw-r--r-- | build2/config/utility.cxx | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/build2/config/utility.cxx b/build2/config/utility.cxx new file mode 100644 index 0000000..361bd5e --- /dev/null +++ b/build2/config/utility.cxx @@ -0,0 +1,92 @@ +// file : build2/config/utility.cxx -*- C++ -*- +// copyright : Copyright (c) 2014-2015 Code Synthesis Ltd +// license : MIT; see accompanying LICENSE file + +#include <build2/config/utility> + +#include <build2/context> + +using namespace std; + +namespace build2 +{ + namespace config + { + const value& + optional (scope& root, const variable& var) + { + auto l (root[var]); + + return l.defined () + ? l.belongs (*global_scope) ? (root.assign (var) = *l) : *l + : root.assign (var); // NULL + } + + const value& + optional_absolute (scope& root, const variable& var) + { + auto l (root[var]); + + if (!l.defined ()) + return root.assign (var); // NULL + + if (!l.belongs (*global_scope)) // Value from (some) root scope. + return *l; + + // Make the command-line value absolute. This is necessary to avoid + // a warning issued by the config module about global/root scope + // value mismatch. + // + value& v (const_cast<value&> (*l)); + + if (v && !v.empty ()) + { + dir_path& d (as<dir_path> (v)); + + if (d.relative ()) + { + d = work / d; + d.normalize (); + } + } + + return root.assign (var) = v; + } + + bool + specified (scope& r, const string& ns) + { + // Search all outer scopes for any value in this namespace. + // + for (scope* s (&r); s != nullptr; s = s->parent_scope ()) + { + for (auto p (s->vars.find_namespace (ns)); + p.first != p.second; + ++p.first) + { + const variable& var (p.first->first); + + // Ignore config.*.configured. + // + if (var.name.size () < 11 || + var.name.compare (var.name.size () - 11, 11, ".configured") != 0) + return true; + } + } + + return false; + } + + void + append_options (cstrings& args, const const_strings_value& sv) + { + if (!sv.empty ()) + { + args.reserve (args.size () + sv.size ()); + + for (const string& s: sv) + args.push_back (s.c_str ()); + } + } + } +} |