Commit graph

55 commits

Author SHA1 Message Date
Matt Ellis ad78f3ef59 Improve error message when Pulumi.yaml can't be found
Fixes #2234
2018-12-06 14:04:01 -08:00
Matt Ellis 992b048dbf Adopt golangci-lint and address issues
We run the same suite of changes that we did on gometalinter. This
ended up catching a few new issues, some of which were addressed and
some of which were baselined.
2018-11-08 14:11:47 -08:00
Matt Ellis 4f28f3d44d Allow overriding config location
Now that the "config" member of Pulumi.yaml has been deprecated for a
while, we'll change it's meaning. When set, the value is treated as a
path and joined with the path to Pulumi.yaml, and per stack
configuration is stored in that folder

Fixes #1031
2018-06-05 09:26:48 -07:00
joeduffy 5967259795 Add license headers 2018-05-22 15:02:47 -07:00
Matt Ellis 0732b05c5d Remove pulumi init
`pulumi init` was part of our old identity model with the service and
is no longer used. We can now delete this code.

Fixes #1241
2018-05-22 13:37:08 -07:00
Pat Gavlin a5e92b9497
Cache workspaces based on full path. (#1326)
As it stands, we recompute the workspace for the current directory
potentially many times during some CLI operations, most notably
`stack ls`. These changes add a simple cache based on the complete path
passed to `NewFrom`, and eliminate some lagginess in `stack ls` when
there are multiple stacks.

Another option is to calculate the current workspace once in the CLI and
then fetch it as necessary.
2018-05-07 15:35:58 -07:00
Matt Ellis bac02f1df1 Remove the need to pulumi init for the local backend
This change removes the need to `pulumi init` when targeting the local
backend. A fair amount of the change lays the foundation that the next
set of changes to stop having `pulumi init` be used for cloud stacks
as well.

Previously, `pulumi init` logically did two things:

1. It created the bookkeeping directory for local stacks, this was
stored in `<repository-root>/.pulumi`, where `<repository-root>` was
the path to what we belived the "root" of your project was. In the
case of git repositories, this was the directory that contained your
`.git` folder.

2. It recorded repository information in
`<repository-root>/.pulumi/repository.json`. This was used by the
cloud backend when computing what project to interact with on
Pulumi.com

The new identity model will remove the need for (2), since we only
need an owner and stack name to fully qualify a stack on
pulumi.com, so it's easy enough to stop creating a folder just for
that.

However, for the local backend, we need to continue to retain some
information about stacks (e.g. checkpoints, history, etc). In
addition, we need to store our workspace settings (which today just
contains the selected stack) somehere.

For state stored by the local backend, we change the URL scheme from
`local://` to `local://<optional-root-path>`. When
`<optional-root-path>` is unset, it defaults to `$HOME`. We create our
`.pulumi` folder in that directory. This is important because stack
names now must be unique within the backend, but we have some tests
using local stacks which use fixed stack names, so each integration
test really wants its own "view" of the world.

For the workspace settings, we introduce a new `workspaces` directory
in `~/.pulumi`. In this folder we write the workspace settings file
for each project. The file name is the name of the project, combined
with the SHA1 of the path of the project file on disk, to ensure that
multiple pulumi programs with the same project name have different
workspace settings.

This does mean that moving a project's location on disk will cause the
CLI to "forget" what the selected stack was, which is unfortunate, but
not the end of the world. If this ends up being a big pain point, we
can certianly try to play games in the future (for example, if we saw
a .git folder in a parent folder, we could store data in there).

With respect to compatibility, we don't attempt to migrate older files
to their newer locations. For long lived stacks managed using the
local backend, we can provide information on where to move things
to. For all stacks (regardless of backend) we'll require the user to
`pulumi stack select` their stack again, but that seems like the
correct trade-off vs writing complicated upgrade code.
2018-04-18 04:53:49 -07:00
Pat Gavlin a23b10a9bf
Update the copyright end date to 2018. (#1068)
Just what it says on the tin.
2018-03-21 12:43:21 -07:00
Matt Ellis 207a9755d8 Rework configuration model
This change updates our configuration model to make it simpler to
understand by removing some features and changing how things are
persisted in files.

Notable changes:

- We've removed the notion of "workspace" vs "project"
  config. Now, configuration is always stored in a file next to
  `Pulumi.yaml` named `Pulumi.<stack-name>.yaml` (the same file we'd
  use for an other stack specific information we would need to persist
  in the future).
- We've removed the notion of project wide configuration. Every new
  stack gets a completely empty set of configuration and there's no
  way to share common values across stacks, instead the common value
  has to be set on each stack.

We retain some of the old code for the configuration system so we can
support upgrading a project in place. That will happen with the next
change.

This change fixes some issues and allows us to close some
others (since they are no longer possible).

Fixes #866
Closes #872
Closes #731
2018-02-28 17:30:50 -08:00
Matt Ellis 5f83fbf642 Remove Project() method from Workspace interface
We had other ways to get at this data, so let's just unify on them.
2018-02-28 17:25:09 -08:00
Matt Ellis d99f9457b0 Deprecate old configuration model
We are going to be changing the configuration model. To begin, let's
take most of the existing stuff and mark it as "deprecated" so we can
keep the existing behavior (to help transition newer code forward)
while making it clear what APIs should not be called in the
implementation of `pulumi` itself.
2018-02-28 17:25:09 -08:00
Justin Van Patten ed9716f6ef
Create backups of all local stack checkpoint files (#949)
Backup copies of local stack checkpoints are now saved to the
user's home directory (`~/.pulumi/backups`) by default.

This enables users to recover after accidentally deleting their
local `.pulumi` directory (e.g. via `git clean`).

The behavior can be disabled by setting the
PULUMI_DISABLE_CHECKPOINT_BACKUPS environment variable, which
we use to disable backups when running all tests other than the
test for this functionality.
2018-02-20 21:05:57 -08:00
Joe Duffy 902d646215
Rename package to project (#935)
This addresses pulumi/pulumi#446: what we used to call "package" is
now called "project".  This has gotten more confusing over time, now
that we're doing real package management.

Also fixes pulumi/pulumi#426, while in here.
2018-02-14 13:56:16 -08:00
Chris Smith 4c217fd358
Add "pulumi history" command (#826)
This PR adds a new `pulumi history` command, which prints the update history for a stack.

The local backend stores the update history in a JSON file on disk, next to the checkpoint file. The cloud backend simply provides the update metadata, and expects to receive all the data from a (NYI) `/history` REST endpoint.

`pkg/backend/updates.go` defines the data that is being persisted. The way the data is wired through the system is adding a new `backend.UpdateMetadata` parameter to a Stack/Backend's `Update` and `Destroy` methods.

I use `tests/integration/stack_outputs/` as the simple app for the related tests, hence the addition to the `.gitignore` and fixing the name in the `Pulumi.yaml`.

Fixes #636.
2018-01-24 18:22:41 -08:00
Matt Ellis 22938f07be Pretty-print some JSON files we persist to disk
We did not pretty print either the workspace settings file or the
repository settings file, but pretty print other files like the
credentials file and checkpoints. Now we do.

Fixes #540
2018-01-18 20:35:53 -08:00
Matt Ellis 607b4990f5 Remove stack configuration when deleting a stack
When a stack is removed, we should delete any configuration it had
saved in either the Pulumi.yaml file or the workspace.

Fixes #772
2018-01-07 17:38:40 -08:00
joeduffy b59b8f2e6e Fix cloud tests 2017-12-03 06:34:06 -08:00
joeduffy 1c4e41b916 Improve the overall cloud CLI experience
This improves the overall cloud CLI experience workflow.

Now whether a stack is local or cloud is inherent to the stack
itself.  If you interact with a cloud stack, we transparently talk
to the cloud; if you interact with a local stack, we just do the
right thing, and perform all operations locally.  Aside from sometimes
seeing a cloud emoji pop-up ☁️, the experience is quite similar.

For example, to initialize a new cloud stack, simply:

    $ pulumi login
    Logging into Pulumi Cloud: https://pulumi.com/
    Enter Pulumi access token: <enter your token>
    $ pulumi stack init my-cloud-stack

Note that you may log into a specific cloud if you'd like.  For
now, this is just for our own testing purposes, but someday when we
support custom clouds (e.g., Enterprise), you can just say:

    $ pulumi login --cloud-url https://corp.acme.my-ppc.net:9873

The cloud is now the default.  If you instead prefer a "fire and
forget" style of stack, you can skip the login and pass `--local`:

    $ pulumi stack init my-faf-stack --local

If you are logged in and run `pulumi`, we tell you as much:

    $ pulumi
    Usage:
      pulumi [command]

    // as before...

    Currently logged into the Pulumi Cloud ☁️
        https://pulumi.com/

And if you list your stacks, we tell you which one is local or not:

    $ pulumi stack ls
    NAME            LAST UPDATE       RESOURCE COUNT   CLOUD URL
    my-cloud-stack  2017-12-01 ...    3                https://pulumi.com/
    my-faf-stack    n/a               0                n/a

And `pulumi stack` by itself prints information like your cloud org,
PPC name, and so on, in addition to the usuals.

I shall write up more details and make sure to document these changes.

This change also fairly significantly refactors the layout of cloud
versus local logic, so that the cmd/ package is resonsible for CLI
things, and the new pkg/backend/ package is responsible for the
backends.  The following is the overall resulting package architecture:

* The backend.Backend interface can be implemented to substitute
  a new backend.  This has operations to get and list stacks,
  perform updates, and so on.

* The backend.Stack struct is a wrapper around a stack that has
  or is being manipulated by a Backend.  It resembles our existing
  Stack notions in the engine, but carries additional metadata
  about its source.  Notably, it offers functions that allow
  operations like updating and deleting on the Backend from which
  it came.

* There is very little else in the pkg/backend/ package.

* A new package, pkg/backend/local/, encapsulates all local state
  management for "fire and forget" scenarios.  It simply implements
  the above logic and contains anything specific to the local
  experience.

* A peer package, pkg/backend/cloud/, encapsulates all logic
  required for the cloud experience.  This includes its subpackage
  apitype/ which contains JSON schema descriptions required for
  REST calls against the cloud backend.  It also contains handy
  functions to list which clouds we have authenticated with.

* A subpackage here, pkg/backend/state/, is not a provider at all.
  Instead, it contains all of the state management functions that
  are currently shared between local and cloud backends.  This
  includes configuration logic -- including encryption -- as well
  as logic pertaining to which stacks are known to the workspace.

This addresses pulumi/pulumi#629 and pulumi/pulumi#494.
2017-12-02 14:34:42 -08:00
Matt Ellis 44d432a559 Suport workspace local configuration and use it by default
Previously, we stored configuration information in the Pulumi.yaml
file. This was a change from the old model where configuration was
stored in a special section of the checkpoint file.

While doing things this way has some upsides with being able to flow
configuration changes with your source code (e.g. fixed values for a
production stack that version with the code) it caused some friction
for the local development scinerio. In this case, setting
configuration values would pend changes to Pulumi.yaml and if you
didn't want to publish these changes, you'd have to remember to remove
them before commiting. It also was problematic for our examples, where
it was not clear if we wanted to actually include values like
`aws:config:region` in our samples.  Finally, we found that for our
own pulumi service, we'd have values that would differ across each
individual dev stack, and publishing these values to a global
Pulumi.yaml file would just be adding noise to things.

We now adopt a hybrid model, where by default configuration is stored
locally, in the workspace's settings per project. A new flag `--save`
tests commands to actual operate on the configuration information
stored in Pulumi.yaml.

With the following change, we have have four "slots" configuration
values can end up in:

1. In the Pulumi.yaml file, applies to all stacks
2. In the Pulumi.yaml file, applied to a specific stack
3. In the local workspace.json file, applied to all stacks
4. In the local workspace.json file, applied to a specific stack

When computing the configuration information for a stack, we apply
configuration in the above order, overriding values as we go
along.

We also invert the default behavior of the `pulumi config` commands so
they operate on a specific stack (i.e. how they did before
e3610989). If you want to apply configuration to all stacks, `--all`
can be passed to any configuration command.
2017-11-02 13:05:01 -07:00
Chris Smith bd5e54d63e
Fix panic when using commands w/o Pulumi.yaml (#492)
Calls to `NewProjectWorkspace` will panic if there is no Pulumi.yaml found in the folder hierarchy. Simple repo:

```
git init
pulumi init
pulumi stack init x
```

`DetectPackage` will search until it gets to the `.pulumi` directory or finds a `Pulumi.yaml` file. In the case of the former, we pass "" to `LoadPackage` which then asserts because the file doesn't exist.

We now detect this condition and surface an error to the user. The error text is patterned after running a git command when there is no .git folder found:

fatal: Not a git repository (or any of the parent directories): .git
2017-10-28 18:07:03 -07:00
joeduffy 7835305b82 Fix where integration tests look for checkpoints 2017-10-27 19:42:17 -07:00
Matt Ellis 3f1197ef84 Move .pulumi to root of a repository
Now, instead of having a .pulumi folder next to each project, we have
a single .pulumi folder in the root of the repository. This is created
by running `pulumi init`.

When run in a git repository, `pulumi init` will place the .pulumi
file next to the .git folder, so it can be shared across all projects
in a repository. When not in a git repository, it will be created in
the current working directory.

We also start tracking information about the repository itself, in a
new `repo.json` file stored in the root of the .pulumi folder. The
information we track are "owner" and "name" which map to information
we use on pulumi.com.

When run in a git repository with a remote named origin pointing to a
GitHub project, we compute the owner and name by deconstructing
information from the remote's URL. Otherwise, we just use the current
user's username and the name of the current working directory as the
owner and name, respectively.
2017-10-27 11:46:21 -07:00
Matt Ellis a704750714 Remove Workspace dependency on diag.Sink
It was only being used for two cases where we would issue warnings for
cases where the file system casing did not match expected casing. I
think it's probably better if we don't try to be smart here and just
treat these cases the same as if the file had not existed. Removing
the dependncy on diag also makes it a little clearer that this stuff
should be pulled out from the engine.
2017-10-02 15:25:22 -07:00
Joe Duffy f6e694c72b Rename pulumi-fabric to pulumi
This includes a few changes:

* The repo name -- and hence the Go modules -- changes from pulumi-fabric to pulumi.

* The Node.js SDK package changes from @pulumi/pulumi-fabric to just pulumi.

* The CLI is renamed from lumi to pulumi.
2017-09-21 19:18:21 -07:00
joeduffy 3164572b6e Fix some free variable capture logic
* Use `global.hasOwnProperty(ident)`, rather than `global[ident] !== undefined`,
  to avoid classifying references to globals as free variables.  Surprise(!!),
  the prior logic wouldn't work for `undefined` itself... 😒

* Expand this check to include the built-in Node.js module variables, namely
  `__dirname`, `__filename`, `exports`, `module`, and `require`, so that
  references to them don't get classified as serializable free variables either.

* Place catch variables in scope, so that `catch (err) { ... }` won't yield
  free variables for references to `err` within `...`.

* Place recursive function definitions into the top-level `var`-like scope of
  variables so that we don't consider references to them free.

* Harden all error pathways in the native C++ add-on so that we terminate
  anytime an exception is in-flight, rather than limping along and making
  things worse...
2017-09-05 15:21:14 -07:00
joeduffy 9599ea2e55 Get planning engine unit tests running again
We now build and run cleanly locally (for unit tests).  The
integration tests are still on the floor at the moment.
2017-09-04 11:35:21 -07:00
joeduffy f189c40f35 Wire up Lumi to the new runtime strategy
🔥 🔥 🔥  🔥 🔥 🔥

Getting closer on #311.
2017-09-04 11:35:21 -07:00
joeduffy 35aa6b7559 Rename pulumi/lumi to pulumi/pulumi-fabric
We are renaming Lumi to Pulumi Fabric.  This change simply renames the
pulumi/lumi repo to pulumi/pulumi-fabric, without the CLI tools and other
changes that will follow soon afterwards.
2017-08-02 09:25:22 -07:00
joeduffy 2daea4c3d8 Clarify aspects of using the DCO 2017-06-26 14:46:34 -07:00
joeduffy 3c1041af49 Update license headers 2017-06-23 14:53:41 -07:00
Britton Forsyth 8c8f68d4ae Added specified changes 2017-06-09 12:51:31 -07:00
Britton Forsyth 7457cadf58 Fixed various additional linting issues 2017-06-08 10:21:17 -07:00
joeduffy ec2b964daa Do an initial pass over TODOs
This scrubs about 80% of our TODOs, as part of pulumi/lumi#212.
The remaining 20% will come shortly.
2017-06-05 18:11:51 -07:00
joeduffy 4108c51549 Reclassify Lumi under the Apache 2.0 license
This is part of pulumi/lumi#147.
2017-05-18 14:51:52 -07:00
joeduffy dafeb77dff Rename Coconut to Lumi
This is part of pulumi/coconut#147.

After it has landed, I will rename the repo on GitHub.
2017-05-18 11:38:28 -07:00
joeduffy 3d74eac67d Make major commands more pleasant
This change eliminates the need to constantly type in the environment
name when performing major commands like configuration, planning, and
deployment.  It's probably due to my age, however, I keep fat-fingering
simple commands in front of investors and I am embarrassed!

In the new model, there is a notion of a "current environment", and
I have modeled it kinda sorta just like Git's notion of "current branch."

By default, the current environment is set when you `init` something.
Otherwise, there is the `coco env select <env>` command to change it.
(Running this command w/out a new <env> will show you the current one.)

The major commands `config`, `plan`, `deploy`, and `destroy` will prefer
to use the current environment, unless it is overridden by using the
--env flag.  All of the `coco env <cmd> <env>` commands still require the
explicit passing of an environment which seems reasonable since they are,
after all, about manipulating environments.

As part of this, I've overhauled the aging workspace settings cruft,
which had fallen into disrepair since the initial prototype.
2017-03-21 19:23:32 -07:00
joeduffy 95f59273c8 Update copyright notices from 2016 to 2017 2017-03-14 19:26:14 -07:00
joeduffy 384e347115 No more nuts! 2017-03-10 13:27:19 -08:00
joeduffy 86dc13ed5b More term rotations
This changes a few naming things:

* Rename "husk" to "environment" (`coco env` for short).

* Rename NutPack/NutIL to CocoPack/CocoIL.

* Rename the primary Nut.yaml/json project file to Coconut.yaml/json.

* Rename the compiled Nutpack.yaml/json file to Cocopack.yaml/json.

* Rename the package asset directory from nutpack/ to .coconut/.
2017-03-06 14:32:39 +00:00
joeduffy 977b16b2cc Add basic targeting capability
This change partially implements pulumi/coconut#94, by adding the
ability to name targets during creation and reuse those names during
deletion and update.  This simplifies the management of deployment
records, checkpoints, and snapshots.

I've opted to call these things "husks" (perhaps going overboard with
joy after our recent renaming).  The basic idea is that for any
executable Nut that will be deployed, you have a nutpack/ directory
whose layout looks roughly as follows:

    nutpack/
        bin/
            Nutpack.json
            ... any other compiled artifacts ...
        husks/
            ... one snapshot per husk ...

For example, if we had a stage and prod husk, we would have:

    nutpack/
        bin/...
        husks/
            prod.json
            stage.json

In the prod.json and stage.json files, we'd have the most recent
deployment record for that environment.  These would presumably get
checked in and versioned along with the overall Nut, so that we
can use Git history for rollbacks, etc.

The create, update, and delete commands look in the right place for
these files automatically, so you don't need to manually supply them.
2017-02-25 09:24:52 -08:00
joeduffy fbb56ab5df Coconut! 2017-02-25 07:25:33 -08:00
joeduffy e72cf059fb Fix up dependency probing
This changes a few things with dependency probing:

1) Probe for Mupack files, not Mufiles.

2) Substitute defaults in the PackageURL before probing.

3) Trace the full search paths when an import fails to resolve.
   This will help diagnose dependency resolution issues.
2017-02-09 11:01:02 -08:00
joeduffy 2c0266c9e4 Clean up package URL logic
This change rearranges the old way we dealt with URLs.  In the old system,
virtually every reference to an element, including types, was fully qualified
with a possible URL-like reference.  (The old pkg/tokens/Ref type.)  In the
new model, only dependency references are URL-like.  All maps and references
within the MuPack/MuIL format are token and name based, using the new
pkg/tokens/Token and pkg/tokens/Name family of related types.

As such, this change renames Ref to PackageURLString, and RefParts to
PackageURL.  (The convenient name is given to the thing with "more" structure,
since we prefer to deal with structured types and not strings.)  It moves
out of the pkg/tokens package and into pkg/pack, since it is exclusively
there to support package resolution.  Similarly, the Version, VersionSpec,
and related types move out of pkg/tokens and into pkg/pack.

This change cleans up the various binder, package, and workspace logic.
Most of these changes are a natural fallout of this overall restructuring,
although in a few places we remained sloppy about the difference between
Token, Name, and URL.  Now the type system supports these distinctions and
forces us to be more methodical about any conversions that take place.
2017-01-20 11:46:36 -08:00
joeduffy 7b0dc8ee8d Overhaul names versus tokens
I was sloppy in my use of names versus tokens in the original AST.
Now that we're actually binding things to concrete symbols, etc., we
need to be more precise.  In particular, names are just identifiers
that must be "interpreted" in a given lexical context for them to
make any sense; whereas, tokens stand alone and can be resolved without
context other than the set of imported packages, modules, and overall
module structure.  As such, names are much simpler than tokens.

As explained in the comments, tokens.Names are simple identifiers:

    Name = [A-Za-z_][A-Za-z0-9_]*

and tokens.QNames are fully qualified identifiers delimited by "/":

    QName = [ <Name> "/" ]* <Name>

The legal grammar for a token depends on the subset of symbols that
token is meant to represent.  However, the most general case, that
accepts all specializations of tokens, is roughly as follows:

    Token       = <Name> |
                  <PackageName>
                    [ ":" <ModuleName>
                        [ "/" <ModuleMemberName>
                            [ "." <Class MemberName> ]
                        ]
                    ]

where:

    PackageName         = <QName>
    ModuleName          = <QName>
    ModuleMemberName    = <Name>
    ClassMemberName     = <Name>

Please refer to the comments in pkg/tokens/tokens.go for more details.
2017-01-19 17:57:20 -08:00
joeduffy 25632886c8 Begin overhauling semantic phases
This change further merges the new AST and MuPack/MuIL formats and
abstractions into the core of the compiler.  A good amount of the old
code is gone now; I decided against ripping it all out in one fell
swoop so that I can methodically check that we are preserving all
relevant decisions and/or functionality we had in the old model.

The changes are too numerous to outline in this commit message,
however, here are the noteworthy ones:

    * Split up the notion of symbols and tokens, resulting in:

        - pkg/symbols for true compiler symbols (bound nodes)
        - pkg/tokens for name-based tokens, identifiers, constants

    * Several packages move underneath pkg/compiler:

        - pkg/ast becomes pkg/compiler/ast
        - pkg/errors becomes pkg/compiler/errors
        - pkg/symbols becomes pkg/compiler/symbols

    * pkg/ast/... becomes pkg/compiler/legacy/ast/...

    * pkg/pack/ast becomes pkg/compiler/ast.

    * pkg/options goes away, merged back into pkg/compiler.

    * All binding functionality moves underneath a dedicated
      package, pkg/compiler/binder.  The legacy.go file contains
      cruft that will eventually go away, while the other files
      represent a halfway point between new and old, but are
      expected to stay roughly in the current shape.

    * All parsing functionality is moved underneath a new
      pkg/compiler/metadata namespace, and we adopt new terminology
      "metadata reading" since real parsing happens in the MetaMu
      compilers.  Hence, Parser has become metadata.Reader.

    * In general phases of the compiler no longer share access to
      the actual compiler.Compiler object.  Instead, shared state is
      moved to the core.Context object underneath pkg/compiler/core.

    * Dependency resolution during binding has been rewritten to
      the new model, including stashing bound package symbols in the
      context object, and detecting import cycles.

    * Compiler construction does not take a workspace object.  Instead,
      creation of a workspace is entirely hidden inside of the compiler's
      constructor logic.

    * There are three Compile* functions on the Compiler interface, to
      support different styles of invoking compilation: Compile() auto-
      detects a Mu package, based on the workspace; CompilePath(string)
      loads the target as a Mu package and compiles it, regardless of
      the workspace settings; and, CompilePackage(*pack.Package) will
      compile a pre-loaded package AST, again regardless of workspace.

    * Delete the _fe, _sema, and parsetree phases.  They are no longer
      relevant and the functionality is largely subsumed by the above.

...and so very much more.  I'm surprised I ever got this to compile again!
2017-01-18 12:18:37 -08:00
joeduffy 0706472a1c Split pkg/ast; merge symbol code into pkg/symbols
This change helps move us one step closer to eliminating the old metadata-
based AST goo, and replacing it with MuPack/MuIL AST and symbol information.
In particular, all name/token "symbol" code -- things like identifiers,
package/member references, and version specs -- move out of the pkg/ast
package and into the top-level pkg/symbols package, alongside the existing
MuPack/MuIL symbol token types.
2017-01-17 17:41:28 -08:00
joeduffy 01658d04bb Begin merging MuPackage/MuIL into the compiler
This is the first change of many to merge the MuPack/MuIL formats
into the heart of the "compiler".

In fact, the entire meaning of the compiler has changed, from
something that took metadata and produced CloudFormation, into
something that takes MuPack/MuIL as input, and produces a MuGL
graph as output.  Although this process is distinctly different,
there are several aspects we can reuse, like workspace management,
dependency resolution, and some amount of name binding and symbol
resolution, just as a few examples.

An overview of the compilation process is available as a comment
inside of the compiler.Compile function, although it is currently
unimplemented.

The relationship between Workspace and Compiler has been semi-
inverted, such that all Compiler instances require a Workspace
object.  This is more natural anyway and moves some of the detection
logic "outside" of the Compiler.  Similarly, Options has moved to
a top-level package, so that Workspace and Compiler may share
access to it without causing package import cycles.

Finally, all that templating crap is gone.  This alone is cause
for mass celebration!
2017-01-17 17:04:15 -08:00
joeduffy 4cf6be0f07 Add some property binding tests
This change adds a handful of property binding tests.

It also fixes:

* AsName should assert IsName.

* Enumerate properties stably, so that it is deterministic.

* Do not issue errors about unrecognized properties for the special
  `mu/extension` type.  It's entire purpose in life is to offer an
  entirely custom set of properties, which the provider is meant to
  validate.

* Default to an empty map if properties are missing.

* Add a "/" to the end of the namespace from the workspace, if present.

And rearranges some code:

* Rename the LiteralX types to XLiteral; e.g., StringLiteral instead of
  LiteralString.  I kept typing XLiteral erroneously.

* Eliminate the Mu prefix on all of the predefined type and service
  functions and types.  It's superfluous and reads nicer this way.

* Swap the order of "expected" vs. "got" in the error message about
  incorrect property types.  It used to say "got %v, expected %v"; I
  personally find that it is more helpful if it says "expected %v,
  got %v".  YMMV.
2016-12-02 14:33:22 -08:00
joeduffy b3e1eab6d8 Allow workspaces to have namespaces
This change permits a workspace to specify a namespace, which is just a name
part that is trimmed off the front of directories when probing for inter-
workspace dependencies.  For example, if our namespace is aws/, normally we'd
need to organize our namespace into directories like:

        <root>
        |       aws/
        |       |       dynamodb/
        |       |       ec2/
        |       |       s3/
        ... and so on ...

If we instead specify a namespace

        namespace: aws

Then we can instead organize our project workspace as follows:

        <root>
        |       dynamodb/
        |       ec2/
        |       s3/
        ... and so on ...
2016-12-02 14:06:39 -08:00
joeduffy 9f2b737715 Clean up workspace file naming
This change makes workspace file naming a little more consistent with respect
to Mufile naming.  Instead of having a .mu/ directory, under which a workspace.yaml
and/or a stacks directory might exist, we now have a Muspace.yaml (or .json) file,
and a .Mudeps/ directory.  This has nicer symmetric with respect to Mu.yaml files.
2016-11-29 20:07:27 -08:00