Prepare 1.5.1

.github/workflows/hackage.yml

@@ -133,11 +133,18 @@ jobs:
           # For floskell and stylish-haskell
           echo " floskell:base, floskell:ghc-prim, stylish-haskell:Cabal,stylish-haskell:ghc-lib-parser," >> cabal.project
 
-      - name: "Build all package components in isolation"
+      - name: "Build main package components in isolation"
         if: steps.get-hackage-version.outputs.exists != 'true'
         run: |
           cd $(ls -d ./incoming/${{ matrix.package }}-*)
-          cabal build --enable-tests --enable-benchmarks
+          cabal build
+
+      - name: "Build package tests and benchmarks in isolation"
+        if: steps.get-hackage-version.outputs.exists != 'true'
+        run: |
+          cd $(ls -d ./incoming/${{ matrix.package }}-*)
+          # cabal-3.4.0.0 run out of backjumps with tests and benchs enabled
+          cabal build --enable-tests --enable-benchmarks --max-backjumps 8000
 
       - name: "Generate haddock for hackage"
         if: steps.get-hackage-version.outputs.exists != 'true'

.github/workflows/test.yml

@@ -140,13 +140,24 @@ jobs:
                      src/**/*.hs exe/*.hs
 
       - name: Build
-        # Retry it three times to workaround compiler segfaults in windows
-        run: cabal build || cabal build || cabal build
+        run: cabal build
+
+      - name: Set test options
+        run: |
+          echo "TEST_OPTS=-j1 --rerun-update --rerun-filter failures,exceptions,new" >> $GITHUB_ENV
+
+      - name: Cache test log bewteen attempts of the same run
+        uses: actions/cache@v2
+        env:
+          cache-name: cache-test-log
+        with:
+          path: .tasty-rerun-log
+          key: v1-${{ runner.os }}-${{ matrix.ghc }}-test-log-${{ github.sha }}
 
       - if: needs.pre_job.outputs.should_skip_ghcide != 'true' && matrix.test
         name: Test ghcide
         # run the tests without parallelism to avoid running out of memory
-        run: cabal test ghcide --test-options="-j1 --rerun-update" || cabal test ghcide --test-options="-j1 --rerun" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test ghcide --test-options="-j1 --rerun"
+        run: cabal test ghcide --test-options="$TEST_OPTS" || cabal test ghcide --test-options="$TEST_OPTS" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test ghcide --test-options="$TEST_OPTS"
 
       - if: matrix.test
         name: Test func-test suite
@@ -156,7 +167,7 @@ jobs:
         # run the tests without parallelism, otherwise tasty will attempt to run
         # all functional test cases simultaneously which causes way too many hls
         # instances to be spun up for the poor github actions runner to handle
-        run: cabal test func-test --test-options="-j1 --rerun --rerun-update" || cabal test func-test --test-options="-j1 --rerun" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test func-test --test-options="-j1 --rerun"
+        run: cabal test func-test --test-options="$TEST_OPTS" || cabal test func-test --test-options="$TEST_OPTS" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test func-test --test-options="$TEST_OPTS"
 
       - if: matrix.test
         name: Test wrapper-test suite
@@ -166,63 +177,64 @@ jobs:
         # run the tests without parallelism, otherwise tasty will attempt to run
         # all functional test cases simultaneously which causes way too many hls
         # instances to be spun up for the poor github actions runner to handle
-        run: cabal test wrapper-test --test-options="-j1" || cabal test wrapper-test --test-options="-j1" || cabal test wrapper-test --test-options="-j1"
+
+        run: cabal test wrapper-test --test-options="$TEST_OPTS" || cabal test wrapper-test --test-options="$TEST_OPTS" || cabal test wrapper-test --test-options="$TEST_OPTS"
 
       - if: matrix.test && matrix.ghc != '9.0.1'
         name: Test hls-brittany-plugin
-        run: cabal test hls-brittany-plugin --test-options="-j1 --rerun-update" || cabal test hls-brittany-plugin --test-options="-j1 --rerun" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test hls-brittany-plugin --test-options="-j1 --rerun"
+        run: cabal test hls-brittany-plugin --test-options="$TEST_OPTS" || cabal test hls-brittany-plugin --test-options="$TEST_OPTS" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test hls-brittany-plugin --test-options="$TEST_OPTS"
 
       - if: matrix.test && matrix.ghc != '9.0.1'
         name: Test hls-class-plugin
-        run: cabal test hls-class-plugin --test-options="-j1 --rerun-update" || cabal test hls-class-plugin --test-options="-j1 --rerun" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test hls-class-plugin --test-options="-j1 --rerun"
+        run: cabal test hls-class-plugin --test-options="$TEST_OPTS" || cabal test hls-class-plugin --test-options="$TEST_OPTS" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test hls-class-plugin --test-options="$TEST_OPTS"
 
       - if: matrix.test
         name: Test hls-eval-plugin
-        run: cabal test hls-eval-plugin --test-options="-j1 --rerun-update" || cabal test hls-eval-plugin --test-options="-j1 --rerun" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test hls-eval-plugin --test-options="-j1 --rerun"
+        run: cabal test hls-eval-plugin --test-options="$TEST_OPTS" || cabal test hls-eval-plugin --test-options="$TEST_OPTS" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test hls-eval-plugin --test-options="$TEST_OPTS"
 
       - if: matrix.test
         name: Test hls-haddock-comments-plugin
-        run: cabal test hls-haddock-comments-plugin --test-options="-j1 --rerun-update" || cabal test hls-haddock-comments-plugin --test-options="-j1 --rerun" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test hls-haddock-comments-plugin --test-options="-j1 --rerun"
+        run: cabal test hls-haddock-comments-plugin --test-options="$TEST_OPTS" || cabal test hls-haddock-comments-plugin --test-options="$TEST_OPTS" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test hls-haddock-comments-plugin --test-options="$TEST_OPTS"
 
       - if: matrix.test
         name: Test hls-splice-plugin
-        run: cabal test hls-splice-plugin --test-options="-j1 --rerun-update" || cabal test hls-splice-plugin --test-options="-j1 --rerun" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test hls-splice-plugin --test-options="-j1 --rerun"
+        run: cabal test hls-splice-plugin --test-options="$TEST_OPTS" || cabal test hls-splice-plugin --test-options="$TEST_OPTS" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test hls-splice-plugin --test-options="$TEST_OPTS"
 
       - if: matrix.test && matrix.ghc != '9.0.1'
         name: Test hls-stylish-haskell-plugin
-        run: cabal test hls-stylish-haskell-plugin --test-options="-j1 --rerun-update" || cabal test hls-stylish-haskell-plugin --test-options="-j1 --rerun" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test hls-stylish-haskell-plugin --test-options="-j1 --rerun"
+        run: cabal test hls-stylish-haskell-plugin --test-options="$TEST_OPTS" || cabal test hls-stylish-haskell-plugin --test-options="$TEST_OPTS" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test hls-stylish-haskell-plugin --test-options="$TEST_OPTS"
 
       - if: matrix.test
         name: Test hls-ormolu-plugin
-        run: cabal test hls-ormolu-plugin --test-options="-j1 --rerun-update" || cabal test hls-ormolu-plugin --test-options="-j1 --rerun" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test hls-ormolu-plugin --test-options="-j1 --rerun"
+        run: cabal test hls-ormolu-plugin --test-options="$TEST_OPTS" || cabal test hls-ormolu-plugin --test-options="$TEST_OPTS" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test hls-ormolu-plugin --test-options="$TEST_OPTS"
 
       - if: matrix.test
         name: Test hls-fourmolu-plugin
-        run: cabal test hls-fourmolu-plugin --test-options="-j1 --rerun-update" || cabal test hls-fourmolu-plugin --test-options="-j1 --rerun" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test hls-fourmolu-plugin --test-options="-j1 --rerun"
+        run: cabal test hls-fourmolu-plugin --test-options="$TEST_OPTS" || cabal test hls-fourmolu-plugin --test-options="$TEST_OPTS" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test hls-fourmolu-plugin --test-options="$TEST_OPTS"
 
-      - if: matrix.test && matrix.ghc != '9.0.1'
+      - if: matrix.test && matrix.ghc != '9.0.1' && !(matrix.os == 'ubuntu-latest' && matrix.ghc == '8.6.5')
         name: Test hls-tactics-plugin test suite
-        run: cabal test hls-tactics-plugin --test-options="-j1 --rerun-update" || cabal test hls-tactics-plugin --test-options="-j1 --rerun" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test hls-tactics-plugin --test-options="-j1 --rerun"
+        run: cabal test hls-tactics-plugin --test-options="$TEST_OPTS" || cabal test hls-tactics-plugin --test-options="$TEST_OPTS" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test hls-tactics-plugin --test-options="$TEST_OPTS"
 
       - if: matrix.test
         name: Test hls-refine-imports-plugin test suite
-        run: cabal test hls-refine-imports-plugin --test-options="-j1 --rerun-update" || cabal test hls-refine-imports-plugin --test-options="-j1 --rerun" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test hls-refine-imports-plugin --test-options="-j1 --rerun"
+        run: cabal test hls-refine-imports-plugin --test-options="$TEST_OPTS" || cabal test hls-refine-imports-plugin --test-options="$TEST_OPTS" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test hls-refine-imports-plugin --test-options="$TEST_OPTS"
 
       - if: matrix.test
         name: Test hls-explicit-imports-plugin test suite
-        run: cabal test hls-explicit-imports-plugin --test-options="-j1 --rerun-update" || cabal test hls-explicit-imports-plugin --test-options="-j1 --rerun" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test hls-explicit-imports-plugin --test-options="-j1 --rerun"
+        run: cabal test hls-explicit-imports-plugin --test-options="$TEST_OPTS" || cabal test hls-explicit-imports-plugin --test-options="$TEST_OPTS" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test hls-explicit-imports-plugin --test-options="$TEST_OPTS"
 
       - if: matrix.test
         name: Test hls-call-hierarchy-plugin test suite
-        run: cabal test hls-call-hierarchy-plugin --test-options="-j1 --rerun-update" || cabal test hls-call-hierarchy-plugin --test-options="-j1 --rerun" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test hls-call-hierarchy-plugin --test-options="-j1 --rerun"
+        run: cabal test hls-call-hierarchy-plugin --test-options="$TEST_OPTS" || cabal test hls-call-hierarchy-plugin --test-options="$TEST_OPTS" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test hls-call-hierarchy-plugin --test-options="$TEST_OPTS"
 
       - if: matrix.test
         name: Test hls-rename-plugin test suite
-        run: cabal test hls-rename-plugin --test-options="-j1 --rerun-update" || cabal test hls-rename-plugin --test-options="-j1 --rerun" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test hls-rename-plugin --test-options="-j1 --rerun"
+        run: cabal test hls-rename-plugin --test-options="$TEST_OPTS" || cabal test hls-rename-plugin --test-options="$TEST_OPTS" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test hls-rename-plugin --test-options="$TEST_OPTS"
 
       - if: matrix.test
         name: Test hls-hlint-plugin test suite
-        run: cabal test hls-hlint-plugin --test-options="-j1 --rerun-update" || cabal test hls-hlint-plugin --test-options="-j1 --rerun" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test hls-hlint-plugin --test-options="-j1 --rerun"
+        run: cabal test hls-hlint-plugin --test-options="$TEST_OPTS" || cabal test hls-hlint-plugin --test-options="$TEST_OPTS" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test hls-hlint-plugin --test-options="$TEST_OPTS"
 
   test_post_job:
     if: always()

ChangeLog.md

@@ -1,5 +1,45 @@
 # Changelog for haskell-language-server
 
+## 1.5.1
+
+This is a bug fix release for two regressions found after releasing 1.5.0:
+
+- [#2365](https://github.com/haskell/haskell-language-server/issue/2365): hs-boot files not handled correctly, discovered in the ghc codebase and fixed with [#2377](https://github.com/haskell/haskell-language-server/pull/2377)
+- [#2379](https://github.com/haskell/haskell-language-server/issue/2379): `tried to look at linkable for GetModIfaceWithoutLinkable for NormalizedFilePath...` error handling template haskell, fixed with [#2380](https://github.com/haskell/haskell-language-server/pull/2380)
+
+Both quick fixes thanks to @pepeiborra
+
+Also it fixes some long standing bugs in the hlint plugin due to comments being ignored (see [#2366](https://github.com/haskell/haskell-language-server/pull/2366))
+
+### Pull requests merged for 1.5.1
+
+- Fix hls-graph build with embed-files flag
+([#2395](https://github.com/haskell/haskell-language-server/pull/2395)) by @pepeiborra
+- Prepare 1.5.1
+([#2393](https://github.com/haskell/haskell-language-server/pull/2393)) by @jneira
+- Revert "Update to latest prettyprinter API (#2352)"
+([#2389](https://github.com/haskell/haskell-language-server/pull/2389)) by @pepeiborra
+- Add extra logging around build queue
+([#2388](https://github.com/haskell/haskell-language-server/pull/2388)) by @pepeiborra
+- docs: Fix typo
+([#2386](https://github.com/haskell/haskell-language-server/pull/2386)) by @nh2
+- Update release instructions
+([#2384](https://github.com/haskell/haskell-language-server/pull/2384)) by @jneira
+- ghcide: Update dependency on `hls-plugin-api`
+([#2382](https://github.com/haskell/haskell-language-server/pull/2382)) by @hololeap
+- Fix regression in GhcSessionDeps
+([#2380](https://github.com/haskell/haskell-language-server/pull/2380)) by @pepeiborra
+- Boot files
+([#2377](https://github.com/haskell/haskell-language-server/pull/2377)) by @pepeiborra
+- hls-module-name-plugin: Add missing golden file to hackage tarball
+([#2374](https://github.com/haskell/haskell-language-server/pull/2374)) by @maralorn
+- hls-explicit-imports-plugin: Add golden files to hackage tarball
+([#2373](https://github.com/haskell/haskell-language-server/pull/2373)) by @maralorn
+- Update ghcide dependency for various plugins
+([#2368](https://github.com/haskell/haskell-language-server/pull/2368)) by @hololeap
+- Fix several hlint issues related with the use of parsed module without comments
+([#2366](https://github.com/haskell/haskell-language-server/pull/2366)) by @jneira
+
 ## 1.5.0
 
 Time for another hls release:
@@ -22,6 +62,8 @@ Time for another hls release:
 
 ### Pull requests merged for 1.5.0
 
+- Prepare 1.5.0
+([#2361](https://github.com/haskell/haskell-language-server/pull/2361)) by @jneira
 - More completion fixes
 ([#2354](https://github.com/haskell/haskell-language-server/pull/2354)) by @pepeiborra
 - Update to latest prettyprinter API
@@ -986,6 +1028,7 @@ This version uses `lsp-1.2.0`, `hls-plugin-api-1.1.0`, and `ghcide-1.2.0.2`.
 This is the celebratory release of Haskell Language Server 1.0.0!
 This release includes a lot of internal changes, bug fixes, leaks plugged, and performance improvements, thanks to all our contributors.
 Among others,
+
 - We added the support for GHC 8.10.4, and removed the support for GHC 8.10.1
     Afterward, we will support upmost 3 patch versions for each minor version of GHC, if no special situation happens.
 - As by hie-bios >= 0.7.3, we use (`${XDG_CACHE_HOME}`)[https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html]`/hie-bios/...` (or similar depends on OS) as a build directory for Cabal.
@@ -1169,7 +1212,7 @@ Among others,
 ([#1266](https://github.com/haskell/haskell-language-server/pull/1266)) by @pepeiborra
 - ghcide: Implements a CodeAction to disambiguate ambiguous symbols
 ([#1264](https://github.com/haskell/haskell-language-server/pull/1264)) by @konn
--  Doctest comment parsing using module annotations in Eval Plugin
+- Doctest comment parsing using module annotations in Eval Plugin
 ([#1232](https://github.com/haskell/haskell-language-server/pull/1232)) by @konn
 - Apply some hlint suggestions, silence some others.
 ([#1227](https://github.com/haskell/haskell-language-server/pull/1227)) by @peterwicksstringfield
@@ -1370,7 +1413,6 @@ And remember, we have a new brand logo, courtesy of @Ailrun :slightly_smiling_fa
   - ghcide lives now directly in this repository
   - the test suite has been cleaned and improved (continuing the work done in 0.7.0)
 
-
 Thanks to all contributors and happy new year!
 
 ### Pull requests merged for 0.8.0
@@ -1624,7 +1666,7 @@ There's also plenty of bug fixes, improvements and updates to the underlying too
 If you're eager to try all this out, haskell-language-server is now also installable via [ghcup](https://www.haskell.org/ghcup/):
 
 ```shell
-$ ghcup install hls
+> ghcup install hls
 ```
 
 ### Pull requests merged for 0.5.0

GenChangelogs.hs

@@ -1,18 +1,20 @@
 #!/usr/bin/env cabal
 {- cabal:
-build-depends: base, process, text, github, time >= 1.9
+build-depends: base, bytestring, process, text, github, time >= 1.9
 -}
 
 {-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE RecordWildCards   #-}
 
 import           Control.Monad
+import qualified Data.ByteString.Char8    as BS
 import           Data.List
 import           Data.Maybe
 import qualified Data.Text                as T
 import           Data.Time.Format.ISO8601
 import           Data.Time.LocalTime
 import           GitHub
+import           System.Environment
 import           System.Process
 
 main = do
@@ -23,7 +25,11 @@ main = do
   lastDateStr <- last . lines <$> readProcess "git" ["show", "-s", "--format=%cI", "-1", last tags] ""
   lastDate <- zonedTimeToUTC <$> iso8601ParseM lastDateStr
 
-  prs <- github' $ pullRequestsForR "haskell" "haskell-language-server" stateClosed FetchAll
+  args <- getArgs
+  let githubReq = case args of
+                    []      -> github'
+                    token:_ -> github (OAuth $ BS.pack token)
+  prs <- githubReq $ pullRequestsForR "haskell" "haskell-language-server" stateClosed FetchAll
   let prsAfterLastTag = either (error . show)
                         (foldMap (\pr -> [pr | inRange pr]))
                         prs

cabal-ghc901.project

@@ -49,7 +49,7 @@ source-repository-package
 
 write-ghc-environment-files: never
 
-index-state: 2021-11-11T19:25:51Z
+index-state: 2021-11-23T21:12:30Z
 
 constraints:
   -- These plugins don't work on GHC9 yet

cabal-ghc921.project

@@ -34,7 +34,7 @@ package *
 
 write-ghc-environment-files: never
 
-index-state: 2021-11-11T19:25:51Z
+index-state: 2021-11-23T21:12:30Z
 
 constraints:
   -- These plugins doesn't work on GHC92 yet

cabal.project

@@ -38,7 +38,7 @@ package *
 
 write-ghc-environment-files: never
 
-index-state: 2021-11-11T19:25:51Z
+index-state: 2021-11-23T21:12:30Z
 
 constraints:
     hyphenation +embed

hls-test-utils/hls-test-utils.cabal

@@ -1,6 +1,6 @@
 cabal-version: 2.4
 name:          hls-test-utils
-version:       1.1.0.1
+version:       1.1.0.2
 synopsis:      Utilities used in the tests of Haskell Language Server
 description:
   Please see the README on GitHub at <https://github.com/haskell/haskell-language-server#readme>

plugins/hls-class-plugin/hls-class-plugin.cabal

@@ -1,6 +1,6 @@
 cabal-version:      2.4
 name:               hls-class-plugin
-version:            1.0.1.1
+version:            1.0.1.2
 synopsis:
   Class/instance management plugin for Haskell Language Server