1 files changed, 141 insertions, 0 deletions
diff --git a/tools/ci_generate.nim b/tools/ci_generate.nim
new file mode 100644
index 000000000..46bc39470
--- /dev/null
+++ b/tools/ci_generate.nim
@@ -0,0 +1,141 @@
+##[
+avoid code duplication in CI pipelines.
+For now, this is only used for openbsd + freebsd, but there is a lot of other code
+duplication that could be removed.
+
+## usage
+edit this file as needed and then re-generate via:
+```
+nim r tools/ci_generate.nim
+```
+]##
+
+import std/[strformat, os]
+
+const doNotEdit = "DO NO EDIT DIRECTLY! auto-generated by `nim r tools/ci_generate.nim`"
+proc genCiBsd(header: string, batch: int, num: int): string =
+  result = fmt"""
+## {doNotEdit}
+
+{header}
+
+sources:
+- https://github.com/nim-lang/Nim
+environment:
+  NIM_TESTAMENT_BATCH: "{batch}_{num}"
+  CC: /usr/bin/clang
+tasks:
+- setup: |
+    set -e
+    cd Nim
+    . ci/funs.sh && nimBuildCsourcesIfNeeded
+    echo 'export PATH=$HOME/Nim/bin:$PATH' >> $HOME/.buildenv
+- test: |
+    set -e
+    cd Nim
+    . ci/funs.sh && nimInternalBuildKochAndRunCI
+triggers:
+- action: email
+  condition: failure
+  to: Andreas Rumpf <rumpf_a@web.de>
+"""
+
+proc genBuildExtras(echoRun, koch, nim: string): string =
+  result = fmt"""
+{echoRun} {nim} c --noNimblePath --skipUserCfg --skipParentCfg --hints:off koch
+{echoRun} {koch} boot -d:release --skipUserCfg --skipParentCfg --hints:off
+{echoRun} {koch} tools --skipUserCfg --skipParentCfg --hints:off
+"""
+
+proc genWindowsScript(buildAll: bool): string =
+  result = fmt"""
+@echo off
+rem {doNotEdit}
+rem Build development version of the compiler; can be rerun safely
+rem bare bones version of ci/funs.sh adapted for windows.
+
+rem Read in some common shared variables (shared with other tools),
+rem see https://stackoverflow.com/questions/3068929/how-to-read-file-contents-into-a-variable-in-a-batch-file
+for /f "delims== tokens=1,2" %%G in (config/build_config.txt) do set %%G=%%H
+SET nim_csources=bin\nim_csources_%nim_csourcesHash%.exe
+echo "building from csources: %nim_csources%"
+
+if not exist %nim_csourcesDir% (
+  git clone -q --depth 1 -b %nim_csourcesBranch% %nim_csourcesUrl% %nim_csourcesDir%
+)
+
+if not exist %nim_csources% (
+  cd %nim_csourcesDir%
+  git checkout %nim_csourcesHash%
+  echo "%PROCESSOR_ARCHITECTURE%"
+  if "%PROCESSOR_ARCHITECTURE%"=="AMD64" (
+    SET ARCH=64
+  )
+  CALL build.bat
+  cd ..
+  copy /y bin\nim.exe  %nim_csources%
+)
+"""
+
+  if buildAll:
+    result.add genBuildExtras("", "koch", r"bin\nim.exe")
+
+proc genPosixScript(): string =
+  result = fmt"""
+#!/bin/sh
+# {doNotEdit}
+
+# build development version of the compiler; can be rerun safely.
+# arguments can be passed, e.g.:
+# CC=gcc ucpu=amd64 uos=darwin
+
+set -u # error on undefined variables
+set -e # exit on first error
+
+. ci/funs.sh
+nimBuildCsourcesIfNeeded "$@"
+
+{genBuildExtras("echo_run", "./koch", "bin/nim")}
+"""
+
+proc main()=
+  let dir = ".builds"
+  # not too large to be resource friendly, refs bug #17107
+  let num = 2
+    # if you reduce this, make sure to remove files that shouldn't be generated,
+    # or better, do the cleanup logic here e.g.: `rm .builds/openbsd_*`
+  let headerFreebsd = """
+# see https://man.sr.ht/builds.sr.ht/compatibility.md#freebsd
+image: freebsd/latest
+packages:
+- databases/sqlite3
+- devel/boehm-gc-threaded
+- devel/pcre
+- devel/sdl20
+- devel/sfml
+- www/node
+- devel/gmake
+"""
+
+  let headerOpenbsd = """
+image: openbsd/latest
+packages:
+- gmake
+- sqlite3
+- node
+- boehm-gc
+- pcre
+- sfml
+- sdl2
+- libffi
+"""
+
+  for i in 0..<num:
+    writeFile(dir / fmt"openbsd_{i}.yml", genCiBsd(headerOpenbsd, i, num))
+  writeFile(dir / "freebsd.yml", genCiBsd(headerFreebsd, 0, 1))
+  writeFile("build_all.sh", genPosixScript())
+  writeFile("build_all.bat", genWindowsScript(buildAll = true))
+  writeFile("ci/build_autogen.bat", genWindowsScript(buildAll = false))
+
+when isMainModule:
+  main()