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-rw-r--r--libbuild2/file.cxx35
1 files changed, 33 insertions, 2 deletions
diff --git a/libbuild2/file.cxx b/libbuild2/file.cxx
index 4cf6d82..d91bf73 100644
--- a/libbuild2/file.cxx
+++ b/libbuild2/file.cxx
@@ -913,7 +913,9 @@ namespace build2
}
void
- bootstrap_src (scope& rs, optional<bool>& altn)
+ bootstrap_src (scope& rs, optional<bool>& altn,
+ optional<dir_path> aovr,
+ bool sovr)
{
tracer trace ("bootstrap_src");
@@ -943,6 +945,8 @@ namespace build2
rs.root_extra->project = nullptr;
rs.root_extra->amalgamation = nullptr;
rs.root_extra->subprojects = nullptr;
+
+ assert (!aovr || aovr->empty ());
}
// We assume that bootstrap out cannot load this file explicitly. It
// feels wrong to allow this since that makes the whole bootstrap
@@ -985,7 +989,13 @@ namespace build2
const project_name pn (cast<project_name> (move (*pv)));
rs.root_extra->project = &pn;
- if (av && (av->null || av->empty ()))
+ // @@ We will still have original values in the variables during
+ // bootstrap. Not sure what we can do about that. But it seems
+ // harmless.
+ //
+ if (aovr)
+ rs.root_extra->amalgamation = aovr->empty () ? nullptr : &*aovr;
+ else if (av && (av->null || av->empty ()))
rs.root_extra->amalgamation = nullptr;
{
@@ -1005,6 +1015,13 @@ namespace build2
fail << "variable " << *ctx.var_amalgamation << " expected as a "
<< "second line in " << bf;
}
+
+ // Replace the value if overridden.
+ //
+ // Note that root_extra::amalgamation will be re-pointed below.
+ //
+ if (aovr)
+ rs.vars.assign (ctx.var_amalgamation) = move (*aovr);
}
else
{
@@ -1071,6 +1088,12 @@ namespace build2
// no been configured. In this case falling through is what we want.
}
}
+ else if (v)
+ {
+ if (cast<dir_path> (v).absolute ())
+ fail << "absolute directory in variable " << *ctx.var_amalgamation
+ << " value";
+ }
// Do additional checks if the outer root could be our amalgamation.
//
@@ -1129,6 +1152,14 @@ namespace build2
auto rp (rs.vars.insert (*ctx.var_subprojects)); // Set NULL by default.
value& v (rp.first);
+ if (!sovr)
+ {
+ if (rp.second)
+ rp.second = false; // Keep NULL.
+ else
+ v = nullptr; // Make NULL.
+ }
+
if (rp.second)
{
// No subprojects set so we need to figure out if there are any.