From a46a85f79715925abf8cc1b298d244e108033326 Mon Sep 17 00:00:00 2001
From: Ian Butterworth <i.r.butterworth@gmail.com>
Date: Fri, 5 Jan 2024 12:36:56 -0500
Subject: [PATCH] add test for julia install and mtime maintenance (#200)

---
 .github/scripts/common-tests.jl                       | 11 +++++++++++
 .github/workflows/example-builds-defaultarch.yml      |  2 ++
 .../workflows/example-builds-nightly-defaultarch.yml  |  2 ++
 .github/workflows/example-builds-nightly.yml          |  2 ++
 .github/workflows/example-builds.yml                  |  2 ++
 5 files changed, 19 insertions(+)
 create mode 100644 .github/scripts/common-tests.jl

diff --git a/.github/scripts/common-tests.jl b/.github/scripts/common-tests.jl
new file mode 100644
index 0000000..45e2b82
--- /dev/null
+++ b/.github/scripts/common-tests.jl
@@ -0,0 +1,11 @@
+if !occursin("hostedtoolcache", Sys.BINDIR)
+    error("the wrong julia is being used: $(Sys.BINDIR)")
+end
+if VERSION >= v"1.7.0" # pkgdir was introduced here, and before then mtime wasn't a problem so just skip
+    using Pkg
+    src = pkgdir(Pkg, "src", "Pkg.jl")
+    # mtime is when it's compressed, ctime is when the file is extracted
+    if mtime(src) >= ctime(src)
+        error("source mtime ($(mtime(src))) is not earlier than ctime ($(ctime(src)))")
+    end
+end
diff --git a/.github/workflows/example-builds-defaultarch.yml b/.github/workflows/example-builds-defaultarch.yml
index a469aff..23740c8 100644
--- a/.github/workflows/example-builds-defaultarch.yml
+++ b/.github/workflows/example-builds-defaultarch.yml
@@ -44,3 +44,5 @@ jobs:
           version: ${{ matrix.julia-version }}
       - run: julia --version
       - run: julia --compile=min -O0 -e 'import InteractiveUtils; InteractiveUtils.versioninfo()'
+      - name: "Check that the correct julia is used and that archive mtimes are maintained"
+        run: julia --startup-file=no --color=yes ./.github/scripts/common-tests.jl
diff --git a/.github/workflows/example-builds-nightly-defaultarch.yml b/.github/workflows/example-builds-nightly-defaultarch.yml
index 1099f79..2fb1393 100644
--- a/.github/workflows/example-builds-nightly-defaultarch.yml
+++ b/.github/workflows/example-builds-nightly-defaultarch.yml
@@ -42,3 +42,5 @@ jobs:
           version: ${{ matrix.julia-version }}
       - run: julia --version
       - run: julia --compile=min -O0 -e 'import InteractiveUtils; InteractiveUtils.versioninfo()'
+      - name: "Check that the correct julia is used and that archive mtimes are maintained"
+        run: julia --startup-file=no --color=yes ./.github/scripts/common-tests.jl
diff --git a/.github/workflows/example-builds-nightly.yml b/.github/workflows/example-builds-nightly.yml
index 2ebee2f..21190a6 100644
--- a/.github/workflows/example-builds-nightly.yml
+++ b/.github/workflows/example-builds-nightly.yml
@@ -50,3 +50,5 @@ jobs:
           arch: ${{ matrix.julia-arch }}
       - run: julia --version
       - run: julia --compile=min -O0 -e 'import InteractiveUtils; InteractiveUtils.versioninfo()'
+      - name: "Check that the correct julia is used and that archive mtimes are maintained"
+        run: julia --startup-file=no --color=yes ./.github/scripts/common-tests.jl
diff --git a/.github/workflows/example-builds.yml b/.github/workflows/example-builds.yml
index c940202..0515b12 100644
--- a/.github/workflows/example-builds.yml
+++ b/.github/workflows/example-builds.yml
@@ -50,3 +50,5 @@ jobs:
           arch: ${{ matrix.julia-arch }}
       - run: julia --version
       - run: julia --compile=min -O0 -e 'import InteractiveUtils; InteractiveUtils.versioninfo()'
+      - name: "Check that the correct julia is used and that archive mtimes are maintained"
+        run: julia --startup-file=no --color=yes ./.github/scripts/common-tests.jl