3 Commits (4d53eaa6df2f2f597e18c352ae0ef8baa3e4ed32)

Author	SHA1	Message	Date
Martin Atkins	4d53eaa6df	state: more robust handling of state Serial ... Previously we relied on a constellation of coincidences for everything to work out correctly with state serials. In particular, callers needed to be very careful about mutating states (or not) because many different bits of code shared pointers to the same objects. Here we move to a model where all of the state managers always use distinct instances of state, copied when WriteState is called. This means that they are truly a snapshot of the state as it was at that call, even if the caller goes on mutating the state that was passed. We also adjust the handling of serials so that the state managers ignore any serials in incoming states and instead just treat each Persist as the next version after what was most recently Refreshed. (An exception exists for when nothing has been refreshed, e.g. because we are writing a state to a location for the first time. In that case we _do_ trust the caller, since the given state is either a new state or it's a copy of something we're migrating from elsewhere with its state and lineage intact.) The intent here is to allow the rest of Terraform to not worry about serials and state identity, and instead just treat the state as a mutable structure. We'll just snapshot it occasionally, when WriteState is called, and deal with serials _only_ at persist time. This is intended as a more robust version of #15423, which was a quick hotfix to an issue that resulted from our previous slopping handling of state serials but arguably makes the problem worse by depending on an additional coincidental behavior of the local backend's apply implementation.	9 years ago
Martin Atkins	418a8a8bc9	command + backend: rename various API objects to "Workspace" terminology ... We're shifting terminology from "environment" to "workspace". This takes care of some of the main internal API surface that was using the old terminology, though is not intended to be entirely comprehensive and is mainly just to minimize the amount of confusion for maintainers as we continue moving towards eliminating the old terminology.	9 years ago
Martin Atkins	31d556894f	command: shallow UI-focused rename of "environment" to "workspace" ... Feedback after 0.9 was that the term "environment" was confusing due to it colliding with several other concepts, such as OS environment variables, a non-aligned Terraform Enterprise concept, and differing ideas of "environment" within various organizations. This new term "workspace" is intended to ease some of that confusion. This term is not used anywhere else in Terraform today, and we expect it to not be used in a manner that would be confusing within user organizations. This begins a deprecation cycle for the "terraform env" family of commands, instead moving to an equivalent set of "terraform workspace" commands. There are some remaining references to the old "environment" concept in the code, which will be cleaned up in a separate change. This change is instead focused on text visible in the UI and wording within code comments for the benefit of human maintainers of the code.	9 years ago