New local curator check & instructions

.gitignore

@@ -5,3 +5,6 @@ lts-*.yaml
 *.swp
 check-plan.yaml
 *~
+/constraints.yaml
+/snapshot.yaml
+/snapshot-incomplete.yaml

CURATORS.md

@@ -18,8 +18,8 @@ This section sketches out at a high level how the entire Stackage build/curation
 process works:
 
 * [build-constraints.yaml](https://github.com/commercialhaskell/stackage/blob/master/build-constraints.yaml) specifies packages to be included in Stackage
-* [stackage-curator](http://www.stackage.org/package/stackage-curator) combines build-constraints.yaml with the current state of Hackage to create a build plan for a Stackage Nightly
-* stackage-curator can check that build plan to ensure all version bounds are consistent
+* [curator](https://github.com/commercialhaskell/stack/tree/master/subs/curator) combines build-constraints.yaml with the current state of Hackage to create a build plan for a Stackage Nightly
+* `curator` can check that build plan to ensure all version bounds are consistent
     * The [Travis job](https://github.com/commercialhaskell/stackage/blob/master/.travis.yml) performs these two steps to provide immediate feedback on pull requests
 * Docker Hub [builds](https://github.com/commercialhaskell/stackage/blob/master/Dockerfile) a [Docker image](https://hub.docker.com/r/commercialhaskell/stackage/) for running builds
 * The stackage-build server (described below) is able to run automated builds using the [build.sh script](https://github.com/commercialhaskell/stackage/blob/master/automated/build.sh)
@@ -72,7 +72,7 @@ Most common technique, just prevent a new version of a library from
 being included immediately. This also applies to when only benchmarks
 and tests are affected.
 
-* Copy the stackage-curator output and create a new issue, see e.g
+* Copy the `curator` output and create a new issue, see e.g
 https://github.com/commercialhaskell/stackage/issues/2108
 
 * Add a new entry under the "stackage upper bounds" section of `build-constraints.yaml`. For the above example it would be
@@ -84,7 +84,7 @@ https://github.com/commercialhaskell/stackage/issues/2108
 ```
 
 * Commit (message e.g. "Upper bound for #2108")
-* Optionally: Verify with `stackage-curator check` locally
+* Optionally: Verify with `./check` locally
 * Push
 * Verify that everything works on the build server (you can restart the build or wait for it to to run again)
 
@@ -110,7 +110,7 @@ new package may appear if its dependencies were part of this issue but
 have been updated since the last time we checked. We want to give
 these new packages ample time to be upgraded.
 
-If stackage-curator is happy commit the change ("Remove upper bounds
+If `curator` is happy commit the change ("Remove upper bounds
 and close #X"). After doing this the next nightly build may fail
 because some packages didn't have an upper bound in place, but
 compilation failed. In this case revert the previous commit so any
@@ -367,30 +367,30 @@ We do not run the full stackage build locally as that might take too
 much time. However, some steps on the other hand are much faster to do
 yourself, e.g. verifying constraints without building anything.
 
-To get started, install `stackage-curator` via Git, or [the Linux binary]:
+To get started, install `curator` via Git:
 
 ```
-$ git clone git@github.com:fpco/stackage-curator.git
-$ cd stackage-curator && stack install
+$ git clone git@github.com:commercialhaskell/stack.git
+$ cd stack && stack install curator
 ```
 
-It is a good idea to upgrade `stackage-curator` at the start of your week.
+It is a good idea to upgrade `curator` at the start of your week.
 Then, clone the stackage repo, get the latest packages and run dependency
 resolution:
 
 ```
 $ git clone git@github.com:commercialhaskell/stackage.git
-$ stack update && stackage-curator check
+$ cd stackage
+$ ./check
 ```
 
 This can be used to make sure all version bounds are in place, including for
 test suites and benchmarks, to check whether bounds can be lifted, and to get
 [tell-me-when-its-released] notifications.
 
-`stackage-curator` does not build anything, so you wont see any compilation
+`curator` does not build anything, so you wont see any compilation
 errors for builds, tests and benchmarks.
 
-[the Linux binary]: https://s3.amazonaws.com/stackage-travis/stackage-curator/stackage-curator.bz2
 [tell-me-when-its-released]: https://github.com/commercialhaskell/stackage/blob/master/CURATORS.md#waiting-for-new-releases
 
 ## Adding new curators

check

@@ -1,6 +1,14 @@
-#!/bin/sh
+#!/bin/bash
 
 # Convenience script for checking constraints locally
 
 cd `dirname $0`
-exec stack exec --resolver ghc-8.6.5 stackage-curator check
+
+export GHCVER=$(sed -n "s/^ghc-version: \"\(.*\)\"/\1/p" "build-constraints.yaml")
+
+NIGHTLY="nightly-$(date +%Y-%m-%d)"
+curator update &&
+  curator constraints --target=$NIGHTLY &&
+  curator snapshot-incomplete &&
+  curator snapshot &&
+  stack --resolver ghc-$GHCVER exec curator check-snapshot