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// file : bpkg/pkg-purge.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2015 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#include <bpkg/pkg-purge>
#include <memory> // shared_ptr
#include <bpkg/types>
#include <bpkg/package>
#include <bpkg/package-odb>
#include <bpkg/utility>
#include <bpkg/database>
#include <bpkg/diagnostics>
using namespace std;
using namespace butl;
namespace bpkg
{
void
pkg_purge (const pkg_purge_options& o, cli::scanner& args)
{
tracer trace ("pkg_purge");
dir_path c (o.directory ());
level4 ([&]{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));
transaction t (db.begin ());
shared_ptr<package> p (db.find<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 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 state::unpacked:
{
if (o.keep () && !p->archive)
fail << "package " << n << " has no archive to keep";
break;
}
case 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";
}
}
// First clean up the package source directory.
//
if (p->purge_src)
{
dir_path d (p->src_root->absolute () ? *p->src_root : c / *p->src_root);
if (p->state != state::broken)
{
try
{
if (exists (d)) // Don't complain if someone did our job for us.
rm_r (d);
p->src_root = optional<dir_path> ();
p->purge_src = false;
}
catch (const failed&)
{
p->state = state::broken;
db.update (p);
t.commit ();
info << "package " << n << " is now broken; "
<< "use 'pkg-purge --force' to remove";
throw;
}
}
else
{
// If we are broken, simply make sure the user cleaned things up
// manually.
//
if (exists (d))
fail << "broken package " << n << " source directory still exists" <<
info << "remove " << d << " manually then re-run pkg-purge";
}
}
// Also check the output directory of broken packages.
//
if (p->out_root)
{
assert (p->state == state::broken); // Can only be present if broken.
dir_path d (c / *p->out_root); // Always relative.
if (exists (d))
fail << "broken package " << n << " output directory still exists" <<
info << "remove " << d << " manually then re-run pkg-purge";
}
// Now the archive. Pretty much the same code as above but for a file.
//
if (p->purge_archive && !o.keep ())
{
path a (p->archive->absolute () ? *p->archive : c / *p->archive);
if (p->state != state::broken)
{
try
{
if (exists (a))
rm (a);
p->archive = optional<path> ();
p->purge_archive = false;
}
catch (const failed&)
{
p->state = state::broken;
db.update (p);
t.commit ();
info << "package " << n << " is now broken; "
<< "use 'pkg-purge --force' to remove";
throw;
}
}
else
{
if (exists (a))
fail << "broken package " << n << " archive still exists" <<
info << "remove " << a << " manually then re-run pkg-purge";
}
}
if (o.keep ())
{
if (p->state != state::fetched) // That no-op we were talking about.
{
p->state = state::fetched;
db.update (p);
}
}
else
db.erase (p);
t.commit ();
if (verb)
text << (o.keep () ? "keeping archive " : "purged ")
<< p->name << " " << p->version;
}
}
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