Implement rep-info command

1 files changed, 117 insertions, 0 deletions

diff --git a/bpkg/rep-info.cxx b/bpkg/rep-info.cxx
new file mode 100644
index 0000000..64ac9b1
--- /dev/null
+++ b/bpkg/rep-info.cxx
@@ -0,0 +1,117 @@
+// file      : bpkg/rep-info.cxx -*- C++ -*-
+// copyright : Copyright (c) 2014-2015 Code Synthesis Ltd
+// license   : MIT; see accompanying LICENSE file
+
+#include <bpkg/rep-info>
+
+#include <iostream>  // cout
+#include <stdexcept> // invalid_argument
+
+#include <bpkg/manifest>
+#include <bpkg/manifest-serializer>
+
+#include <bpkg/fetch>
+#include <bpkg/types>
+#include <bpkg/utility>
+#include <bpkg/diagnostics>
+
+using namespace std;
+using namespace butl;
+
+namespace bpkg
+{
+  void
+  rep_info (const rep_info_options& o, cli::scanner& args)
+  {
+    tracer trace ("rep_info");
+
+    if (!args.more ())
+      fail << "repository location argument expected" <<
+        info << "run 'bpkg help rep-info' for more information";
+
+    // Figure out the repository location.
+    //
+    // @@ The same code as in rep-add, factor out.
+    //
+    const char* arg (args.next ());
+    repository_location rl;
+    try
+    {
+      rl = repository_location (arg, repository_location ());
+
+      if (rl.relative ()) // Throws if location is empty.
+        rl = repository_location (
+          dir_path (arg).complete ().normalize ().string ());
+    }
+    catch (const invalid_argument& e)
+    {
+      fail << "invalid repository location '" << arg << "': " << e.what ();
+    }
+
+    // Fetch everything we will need before printing anything.
+    //
+    repository_manifests rms (fetch_repositories (o, rl));
+    package_manifests pms (fetch_packages (o, rl));
+
+    // Now print.
+    //
+    bool all (!o.name () && !o.repositories () && !o.packages ());
+
+    try
+    {
+      cout.exceptions (ostream::badbit | ostream::failbit);
+
+      if (all || o.name ())
+        cout << rl.canonical_name () << " " << rl << endl;
+
+      // Repositories.
+      //
+      if (all || o.repositories ())
+      {
+        if (o.manifest ())
+        {
+          manifest_serializer s (cout, "STDOUT");
+          rms.serialize (s);
+        }
+        else
+        {
+          for (const repository_manifest& rm: rms)
+          {
+            if (rm.location.empty ())
+              continue; // Itself.
+
+            repository_location l (rm.location, rl); // Complete.
+
+            //@@ Handle complements.
+            //
+            cout << "prerequisite " << l.canonical_name () << " " << l << endl;
+          }
+        }
+      }
+
+      // Packages.
+      //
+      if (all || o.packages ())
+      {
+        if (o.manifest ())
+        {
+          manifest_serializer s (cout, "STDOUT");
+          pms.serialize (s);
+        }
+        else
+        {
+          for (const package_manifest& pm: pms)
+            cout << pm.name << " " << pm.version << endl;
+        }
+      }
+    }
+    catch (const manifest_serialization& e)
+    {
+      fail << "unable to serialize manifest: " << e.description;
+    }
+    catch (const ostream::failure&)
+    {
+      fail << "unable to write to STDOUT";
+    }
+  }
+}