diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/nix/why-depends.cc | 27 |
1 files changed, 21 insertions, 6 deletions
diff --git a/src/nix/why-depends.cc b/src/nix/why-depends.cc index dd43bd1c3..74377c912 100644 --- a/src/nix/why-depends.cc +++ b/src/nix/why-depends.cc @@ -31,6 +31,7 @@ struct CmdWhyDepends : SourceExprCommand { std::string _package, _dependency; bool all = false; + bool precise = false; CmdWhyDepends() { @@ -56,6 +57,12 @@ struct CmdWhyDepends : SourceExprCommand .description = "Show all edges in the dependency graph leading from *package* to *dependency*, rather than just a shortest path.", .handler = {&all, true}, }); + + addFlag({ + .longName = "precise", + .description = "For each edge of the graph, inspect the parent node to display the exact location in the path that causes the dependency", + .handler = {&precise, true}, + }); } std::string description() override @@ -158,11 +165,19 @@ struct CmdWhyDepends : SourceExprCommand auto pathS = store->printStorePath(node.path); assert(node.dist != inf); - logger->cout("%s%s%s%s" ANSI_NORMAL, - firstPad, - node.visited ? "\e[38;5;244m" : "", - firstPad != "" ? "→ " : "", - pathS); + if (precise) { + logger->cout("%s%s%s%s" ANSI_NORMAL, + firstPad, + node.visited ? "\e[38;5;244m" : "", + firstPad != "" ? "→ " : "", + pathS); + } else { + logger->cout("%s%s%s%s" ANSI_NORMAL, + firstPad, + node.visited ? "\e[38;5;244m" : "", + firstPad != "" ? treeLast : "", + pathS); + } if (node.path == dependencyPath && !all && packagePath != dependencyPath) @@ -237,7 +252,7 @@ struct CmdWhyDepends : SourceExprCommand // FIXME: should use scanForReferences(). - visitPath(pathS); + if (precise) visitPath(pathS); for (auto & ref : refs) { std::string hash(ref.second->path.hashPart()); |