chore: merge Lake into src/lake

Author: Kha

src/lake/.envrc

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+use flake

src/lake/.gitattributes

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+*.sh text eol=lf

src/lake/.github/workflows/ci.yml

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+name: CI
+
+on: [ push, pull_request ]
+
+jobs:
+  skip_check:
+    name: Skip Check
+    continue-on-error: true
+    runs-on: ubuntu-latest
+    outputs:
+      should_skip: ${{ steps.skip_check.outputs.should_skip }}
+    steps:
+      - id: skip_check
+        uses: fkirc/skip-duplicate-actions@v4
+        with:
+          concurrent_skipping: 'same_content_newer'
+          paths_ignore: '["README.md", "LICENSE"]'
+
+  build:
+    needs: skip_check
+    name: ${{ matrix.name || 'Build' }}
+    if: ${{ needs.skip_check.outputs.should_skip != 'true' }}
+    runs-on: ${{ matrix.os }}
+    defaults:
+      run:
+        shell: ${{ matrix.shell || 'sh' }}
+    strategy:
+      matrix:
+        include:
+        - name: Ubuntu
+          os: ubuntu-latest
+        - name: MacOS
+          os: macos-latest
+        - name: Windows
+          os: windows-latest
+          shell: msys2 {0}
+      # complete all jobs
+      fail-fast: false
+    steps:
+    - name: Install MSYS2 (Windows)
+      if: matrix.os == 'windows-latest'
+      uses: msys2/setup-msys2@v2
+      with:
+        path-type: inherit
+        install: curl unzip make diffutils mingw-w64-x86_64-gcc mingw-w64-x86_64-gmp
+    - name: Install Elan
+      shell: bash -euo pipefail {0}
+      run: |
+        curl -sSfL https://raw.githubusercontent.com/leanprover/elan/master/elan-init.sh | sh -s -- -y --default-toolchain none
+        echo "$HOME/.elan/bin" >> $GITHUB_PATH
+    - name: Checkout
+      uses: actions/checkout@v2
+    - name: Check Lean
+      run: lean --version
+    - name: Build & Time
+      run: ./time.sh -j4
+    - name: Upload Build
+      continue-on-error: true
+      uses: actions/upload-artifact@v2
+      with:
+        name: ${{ matrix.os }}
+        path: build
+    - name: Check Lake
+      run: make check-lake
+    - name: Test Lake
+      run: make test-ci
+    - name: Time Bootstrap
+      run: make time-bootstrap
+    - name: Check Bootstrap
+      run: make check-bootstrap
+    - name: Test Bootstrapped Lake
+      run: make test-bootstrapped -j4

src/lake/.gitignore

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+/build
+produced.out
+result*
+# Do not commit the flake lockfile to avoid having to maintain it
+flake.lock

src/lake/LICENSE

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+Apache License 2.0 (Apache)
+Apache License
+Version 2.0, January 2004
+http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
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+
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+
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src/lake/Lake.lean

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+/-
+Copyright (c) 2021 Mac Malone. All rights reserved.
+Released under Apache 2.0 license as described in the file LICENSE.
+Authors: Mac Malone
+-/
+import Lake.Build
+import Lake.Config
+import Lake.DSL
+import Lake.Version
+import Lake.CLI.Actions

src/lake/Lake/Build.lean

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+/-
+Copyright (c) 2021 Mac Malone. All rights reserved.
+Released under Apache 2.0 license as described in the file LICENSE.
+Authors: Mac Malone
+-/
+import Lake.Build.Monad
+import Lake.Build.Actions
+import Lake.Build.Index
+import Lake.Build.Module
+import Lake.Build.Package
+import Lake.Build.Library
+import Lake.Build.Imports

src/lake/Lake/Build/Actions.lean

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+/-
+Copyright (c) 2017 Microsoft Corporation. All rights reserved.
+Released under Apache 2.0 license as described in the file LICENSE.
+Authors: Gabriel Ebner, Sebastian Ullrich, Mac Malone
+-/
+import Lake.Util.Proc
+import Lake.Util.NativeLib
+import Lake.Build.Context
+
+namespace Lake
+open System
+
+def createParentDirs (path : FilePath) : IO Unit := do
+  if let some dir := path.parent then IO.FS.createDirAll dir
+
+def compileLeanModule (name : String) (leanFile : FilePath)
+(oleanFile? ileanFile? cFile? : Option FilePath)
+(leanPath : SearchPath := []) (rootDir : FilePath := ".")
+(dynlibs : Array FilePath := #[]) (dynlibPath : SearchPath := {})
+(leanArgs : Array String := #[]) (lean : FilePath := "lean")
+: BuildM Unit := do
+  logStep s!"Building {name}"
+  let mut args := leanArgs ++
+    #[leanFile.toString, "-R", rootDir.toString]
+  if let some oleanFile := oleanFile? then
+    createParentDirs oleanFile
+    args := args ++ #["-o", oleanFile.toString]
+  if let some ileanFile := ileanFile? then
+    createParentDirs ileanFile
+    args := args ++ #["-i", ileanFile.toString]
+  if let some cFile := cFile? then
+    createParentDirs cFile
+    args := args ++ #["-c", cFile.toString]
+  for dynlib in dynlibs do
+    args := args.push s!"--load-dynlib={dynlib}"
+  proc {
+    args
+    cmd := lean.toString
+    env := #[
+      ("LEAN_PATH", leanPath.toString),
+      (sharedLibPathEnvVar, (← getSearchPath sharedLibPathEnvVar) ++ dynlibPath |>.toString)
+    ]
+  }
+
+def compileO (name : String) (oFile srcFile : FilePath)
+(moreArgs : Array String := #[]) (compiler : FilePath := "cc") : BuildM Unit := do
+  logStep s!"Compiling {name}"
+  createParentDirs oFile
+  proc {
+    cmd := compiler.toString
+    args := #["-c", "-o", oFile.toString, srcFile.toString] ++ moreArgs
+  }
+
+def compileStaticLib (name : String) (libFile : FilePath)
+(oFiles : Array FilePath) (ar : FilePath := "ar") : BuildM Unit := do
+  logStep s!"Creating {name}"
+  createParentDirs libFile
+  proc {
+    cmd := ar.toString
+    args := #["rcs", libFile.toString] ++ oFiles.map toString
+  }
+
+def compileSharedLib (name : String) (libFile : FilePath)
+(linkArgs : Array String) (linker : FilePath := "cc") : BuildM Unit := do
+  logStep s!"Linking {name}"
+  createParentDirs libFile
+  proc {
+    cmd := linker.toString
+    args := #["-shared", "-o", libFile.toString] ++ linkArgs
+  }
+
+def compileExe (name : String) (binFile : FilePath) (linkFiles : Array FilePath)
+(linkArgs : Array String := #[]) (linker : FilePath := "cc") : BuildM Unit := do
+  logStep s!"Linking {name}"
+  createParentDirs binFile
+  proc {
+    cmd := linker.toString
+    args := #["-o", binFile.toString] ++ linkFiles.map toString ++ linkArgs
+  }
+
+/-- Download a file using `curl`, clobbering any existing file. -/
+def download (name : String) (url : String) (file : FilePath) : LogIO PUnit := do
+  logInfo s!"Downloading {name}"
+  if (← file.pathExists) then
+    IO.FS.removeFile file
+  else
+    createParentDirs file
+  let args :=
+    if (← getIsVerbose) then #[] else #["-s"]
+  proc (quiet := true) {
+    cmd := "curl"
+    args := args ++ #["-f", "-o", file.toString, "-L", url]
+  }
+
+/-- Unpack an archive `file` using `tar` into the directory `dir`. -/
+def untar (name : String) (file : FilePath) (dir : FilePath) (gzip := true) : LogIO PUnit := do
+  logInfo s!"Unpacking {name}"
+  let mut opts := "-x"
+  if (← getIsVerbose) then
+    opts := opts.push 'v'
+  if gzip then
+    opts := opts.push 'z'
+  proc {
+    cmd := "tar",
+    args := #[opts, "-f", file.toString, "-C", dir.toString]
+  }
+
+/-- Pack a directory `dir` using `tar` into the archive `file`. -/
+def tar (name : String) (dir : FilePath) (file : FilePath)
+(gzip := true) (excludePaths : Array FilePath := #[]) : LogIO PUnit := do
+  logInfo s!"Packing {name}"
+  createParentDirs file
+  let mut args := #["-c"]
+  if gzip then
+    args := args.push "-z"
+  if (← getIsVerbose) then
+    args := args.push "-v"
+  for path in excludePaths do
+    args := args.push s!"--exclude={path}"
+  proc {
+    cmd := "tar"
+    args := args ++ #["-f", file.toString, "-C", dir.toString, "."]
+  }