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tool/install: add --force flag

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This commit is contained in:
Louis Bettens 2022-08-19 23:42:24 +02:00 committed by Louis Bettens
parent 9316082b9f
commit a8bf8fa37f
2 changed files with 52 additions and 1 deletions
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39
checks/imperative-management.nix
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@ -59,6 +59,45 @@ lib.optionalAttrs stdenv.isLinux {
'';
};
install_dummy_force = mkTest {
name = "miniguest-install-dummy-force";
testScript = ''
machine.succeed("""
miniguest install -f /tmp/flake1#dummy
""")
assert "foo" in machine.succeed("""
cat /etc/miniguests/dummy/boot/init
""")
'';
};
install_dummy_twice = mkTest {
name = "miniguest-install-dummy-twice";
testScript = ''
machine.succeed("""
miniguest install /tmp/flake1#dummy
""")
assert "--force" in machine.fail("""
miniguest install /tmp/flake1#dummy 2>&1
""")
'';
};
install_dummy_twice_force = mkTest {
name = "miniguest-install-dummy-twice-force";
testScript = ''
machine.succeed("""
miniguest install /tmp/flake1#dummy
""")
machine.succeed("""
miniguest install --force /tmp/flake1#dummy
""")
assert "foo" in machine.succeed("""
cat /etc/miniguests/dummy/boot/init
""")
'';
};
install_rename = mkTest {
name = "miniguest-install-rename";
testScript = ''

14
tool/install.cpp
View File

@ -34,8 +34,15 @@ namespace miniguest {
struct CmdInstall : virtual InstallableCommand, virtual MixProfile {
std::optional<std::string> guest_name;
bool force;
CmdInstall() {
addFlag({
.longName = "force",
.shortName = 'f',
.description = "Override an existing guest",
.handler = {&force, true},
});
addFlag({
.longName = "name",
.shortName = 'n',
@ -52,6 +59,7 @@ struct CmdInstall : virtual InstallableCommand, virtual MixProfile {
std::string doc() override {
return R""(miniguest install [-n|--name <arg>] <flake-reference>
<flake-reference>: guest to build
-f, --force: override an existing guest
-n, --name: name of the profile (no default))"";
}
@ -75,6 +83,11 @@ struct CmdInstall : virtual InstallableCommand, virtual MixProfile {
Context ctx = bld.build();
profile = ctx.profile_path.native();
ProfileManifest manifest(*getEvalState(), *profile);
if (!manifest.elements.empty() && !force)
throw Error("A guest named “" + *guest_name +
"” is already installed! use --force to replace it");
auto installableFlake =
std::static_pointer_cast<InstallableFlake>(installable);
@ -85,7 +98,6 @@ struct CmdInstall : virtual InstallableCommand, virtual MixProfile {
auto [attrPath, resolvedRef, drv] = installableFlake->toDerivation();
ProfileManifest manifest(*getEvalState(), *profile);
ProfileElement element;
element.source = {installableFlake->flakeRef, resolvedRef, attrPath};
element.updateStorePaths(getEvalStore(), store, result);