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// file : bpkg/cfg-create.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2019 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#include <bpkg/cfg-create.hxx>
#include <bpkg/package.hxx>
#include <bpkg/package-odb.hxx>
#include <bpkg/database.hxx>
#include <bpkg/diagnostics.hxx>
using namespace std;
namespace bpkg
{
int
cfg_create (const cfg_create_options& o, cli::scanner& args)
{
tracer trace ("cfg_create");
if (o.existing () && o.wipe ())
fail << "both --existing|-e and --wipe specified";
if (o.wipe () && !o.directory_specified ())
fail << "--wipe requires explicit --directory|-d";
dir_path c (o.directory ());
l4 ([&]{trace << "creating configuration in " << c;});
// Verify the existing directory is compatible with our mode.
//
if (exists (c))
{
if (o.existing ())
{
// Bail if the .bpkg/ directory already exists and is not empty.
//
// If you are wondering why don't we allow --wipe here, it's the
// existing packages that may be littering the configuration --
// cleaning those up will be messy.
//
dir_path d (c / bpkg_dir);
if (exists (d) && !empty (d))
fail << "directory " << d << " already exists";
}
else
{
// If the directory already exists, make sure it is empty.
//
if (!empty (c))
{
if (!o.wipe ())
fail << "directory " << c << " is not empty" <<
info << "use --wipe to clean it up but be careful";
rm_r (c, false);
}
}
}
else
{
// Note that we allow non-existent directory even in the --existing mode
// in case the user wants to add the build system configuration later.
//
mk_p (c);
}
// Sort arguments into modules and configuration variables.
//
strings mods;
strings vars;
while (args.more ())
{
string a (args.next ());
if (a.find ('=') != string::npos)
{
vars.push_back (move (a));
}
else if (!a.empty ())
{
mods.push_back (move (a));
}
else
fail << "empty string as argument";
}
// Create and configure.
//
if (o.existing ())
{
if (!mods.empty ())
fail << "module '" << mods[0] << "' specified with --existing|-e";
if (!vars.empty ())
fail << "variable '" << vars[0] << "' specified with --existing|-e";
}
else
{
// Assemble the build2 create meta-operation parameters.
//
string params ("'" + c.representation () + "'");
if (!mods.empty ())
{
params += ',';
for (const string& m: mods)
{
params += ' ';
params += m;
}
}
// Run quiet. Use path representation to get canonical trailing slash.
//
run_b (o, verb_b::quiet, vars, "create(" + params + ")");
}
// Create .bpkg/ and its subdirectories.
//
{
mk (c / bpkg_dir);
mk (c / certs_dir);
mk (c / repos_dir);
}
// Initialize tmp directory.
//
init_tmp (c);
// Create the database.
//
database db (open (c, trace, true));
// Add the special, root repository object with empty location and
// containing a single repository fragment having an empty location as
// well.
//
// Note that the root repository serves as a complement for dir and git
// repositories that have neither prerequisites nor complements. The
// root repository fragment is used for transient available package
// locations and as a search starting point for held packages (see
// pkg-build for details).
//
transaction t (db);
shared_ptr<repository_fragment> fr (
make_shared<repository_fragment> (repository_location ()));
db.persist (fr);
shared_ptr<repository> r (
make_shared<repository> (repository_location ()));
r->fragments.push_back (
repository::fragment_type {string () /* friendly_name */, move (fr)});
db.persist (r);
t.commit ();
if (verb && !o.no_result ())
{
normalize (c, "configuration");
if (o.existing ())
text << "initialized existing configuration in " << c;
else
text << "created new configuration in " << c;
}
return 0;
}
default_options_files
options_files (const char*, const cfg_create_options& o, const strings&)
{
// bpkg.options
// bpkg-cfg-create.options
// Use the configuration parent directory as a start directory.
//
optional<dir_path> start_dir;
// Let cfg_create() complain later for the root directory used as a
// configuration directory.
//
dir_path d (normalize (o.directory (), "configuration"));
if (!d.root ())
start_dir = d.directory ();
return default_options_files {
{path ("bpkg.options"), path ("bpkg-cfg-create.options")},
move (start_dir)};
}
cfg_create_options
merge_options (const default_options<cfg_create_options>& defs,
const cfg_create_options& cmd)
{
return merge_default_options (
defs,
cmd,
[] (const default_options_entry<cfg_create_options>& e,
const cfg_create_options&)
{
const cfg_create_options& o (e.options);
auto forbid = [&e] (const char* opt, bool specified)
{
if (specified)
fail (e.file) << opt << " in default options file";
};
forbid ("--directory|-d", o.directory_specified ());
forbid ("--wipe", o.wipe ()); // Dangerous.
});
}
}
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