feat(config): every lens off until the repository turns it on

Jorijn: "all lenses off by default and opt in only". Config::Defaults()
gives every lens run: false; a config that turns on none - a missing
`lenses` key included - has the one problem that names the lenses, so
config, freeze and run all stop on it; the template ships every lens off,
init says to turn lenses on, and the "no lens runs" preflight names the
cause. A consumer config without a `lenses` key now needs one, as the CI
smoke test's does.

Proven with the lens commit before it: the suite (26 passed), and the
dry-run comparison recorded there.
This commit is contained in:
Jorijn van der Graaf 2026-10-31 20:09:07 +01:00
commit 101471d81a
Signed by: jorijnvdgraaf
GPG key ID: 2937E59CDCC1BCFB
15 changed files with 513 additions and 269 deletions

View file

@ -1720,7 +1720,9 @@ namespace Crafter::Review::Run {
const std::vector<Plan::Gate> gates = Plan::GatesFor(only, without, off);
if (gates.empty()) {
std::vector<std::string> why;
if (!off.empty()) {
if (off.size() == Plan::Lenses.size()) {
why.emplace_back("the config turns on no lens (every lens is off until lenses.<name>.run = true turns it on)");
} else if (!off.empty()) {
std::vector<std::string> names;
for (const std::string& lf : off) names.push_back(Plan::LensName(lf));
why.push_back(std::format("the config turns off {}", Dyn::Join(names, ", ")));