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// file : bpkg/pkg-purge.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2018 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#include <bpkg/pkg-purge.hxx>
#include <bpkg/package.hxx>
#include <bpkg/package-odb.hxx>
#include <bpkg/database.hxx>
#include <bpkg/diagnostics.hxx>
using namespace std;
using namespace butl;
namespace bpkg
{
void
pkg_purge_fs (const dir_path& c,
transaction& t,
const shared_ptr<selected_package>& p,
bool simulate,
bool archive)
{
tracer trace ("pkg_purge_archive");
assert (p->state == package_state::fetched ||
p->state == package_state::unpacked);
database& db (t.database ());
tracer_guard tg (db, trace);
try
{
if (p->purge_src)
{
if (!simulate)
{
dir_path d (p->effective_src_root (c));
if (exists (d)) // Don't complain if someone did our job for us.
rm_r (d);
}
p->purge_src = false;
}
// Let's forget about the possibly non-purged source directory, as the
// selected package may now be reused for unrelated package version.
//
p->src_root = nullopt;
p->manifest_checksum = nullopt;
if (archive)
{
if (p->purge_archive)
{
if (!simulate)
{
path a (p->archive->absolute () ? *p->archive : c / *p->archive);
if (exists (a))
rm (a);
}
p->purge_archive = false;
}
// Let's forget about the possibly non-purged archive (see above).
//
p->archive = nullopt;
}
}
catch (const failed&)
{
p->state = package_state::broken;
db.update (p);
t.commit ();
info << "package " << p->name << " is now broken; "
<< "use 'pkg-purge --force' to remove";
throw;
}
}
void
pkg_purge (const dir_path& c,
transaction& t,
const shared_ptr<selected_package>& p,
bool simulate)
{
assert (p->state == package_state::fetched ||
p->state == package_state::unpacked);
tracer trace ("pkg_purge");
database& db (t.database ());
tracer_guard tg (db, trace);
assert (!p->out_root);
pkg_purge_fs (c, t, p, simulate, true);
db.erase (p);
t.commit ();
p->state = package_state::transient;
}
int
pkg_purge (const pkg_purge_options& o, cli::scanner& args)
{
tracer trace ("pkg_purge");
const dir_path& c (o.directory ());
l4 ([&]{trace << "configuration: " << c;});
if (!args.more ())
fail << "package name argument expected" <<
info << "run 'bpkg help pkg-purge' for more information";
string n (args.next ());
database db (open (c, trace));
transaction t (db);
shared_ptr<selected_package> p (db.find<selected_package> (n));
if (p == nullptr)
fail << "package " << n << " does not exist in configuration " << c;
// Make sure the package is in a state from which it can be purged.
//
switch (p->state)
{
case package_state::fetched:
{
// If we have --keep, then this is a no-op. We could have
// detected this and returned but we still want the normal
// diagnostics. So instead the logic below takes care of
// this situation.
//
break;
}
case package_state::unpacked:
{
if (o.keep () && !p->archive)
fail << "package " << n << " has no archive to keep";
break;
}
case package_state::broken:
{
if (!o.force ())
fail << "broken package " << n << " can only be purged with --force";
if (o.keep ())
fail << "cannot keep broken package " << n;
break;
}
default:
{
fail << p->state << " package " << n << " cannot be purged";
}
}
// For a broken package we just verify that all the filesystem objects
// were cleaned up by the user.
//
if (p->state == package_state::broken)
{
if (p->out_root)
{
dir_path d (p->effective_out_root (c));
if (exists (d))
fail << "output directory of broken package " << n
<< " still exists" <<
info << "remove " << d << " manually then re-run pkg-purge";
}
if (p->purge_src)
{
dir_path d (p->effective_src_root (c));
if (exists (d))
fail << "source directory of broken package " << n
<< " still exists" <<
info << "remove " << d << " manually then re-run pkg-purge";
}
if (p->purge_archive)
{
path a (p->archive->absolute () ? *p->archive : c / *p->archive);
if (exists (a))
fail << "archive file of broken package " << n << " still exists" <<
info << "remove " << a << " manually then re-run pkg-purge";
}
}
else
{
assert (!p->out_root);
pkg_purge_fs (c, t, p, false /* simulate */, !o.keep ());
}
// Finally, update the database state.
//
if (o.keep ())
{
if (p->state != package_state::fetched) // No-op we were talking about.
{
p->state = package_state::fetched;
db.update (p);
t.commit ();
}
}
else
{
db.erase (p);
t.commit ();
p->state = package_state::transient;
}
if (verb && !o.no_result ())
text << (o.keep () ? "keeping archive " : "purged ") << *p;
return 0;
}
}
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