From db4701d8b54fa1bb980bd24cfe2d1fe446278c6b Mon Sep 17 00:00:00 2001
From: Vidar Holen <spam@vidarholen.net>
Date: Sat, 18 Sep 2021 19:32:12 -0700
Subject: [PATCH] Add a `setgitversion` script to update the version string
 with git

---
 .github/workflows/build.yml |  3 +++
 setgitversion               | 11 +++++++++++
 src/ShellCheck/Data.hs      |  2 +-
 3 files changed, 15 insertions(+), 1 deletion(-)
 create mode 100755 setgitversion

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 0acece2..e28a43f 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -16,9 +16,12 @@ jobs:
 
       - name: Checkout repository
         uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
 
       - name: Package Source
         run: |
+          ./setgitversion
           mkdir source
           cabal sdist
           mv dist-newstyle/sdist/*.tar.gz source/source.tar.gz
diff --git a/setgitversion b/setgitversion
new file mode 100755
index 0000000..3afad61
--- /dev/null
+++ b/setgitversion
@@ -0,0 +1,11 @@
+#!/bin/sh -xe
+# This script hardcodes the `git describe` version as ShellCheck's version number.
+# This is done to allow shellcheck --version to differ from the cabal version when
+# building git snapshots.
+
+file="src/ShellCheck/Data.hs"
+test -e "$file"
+tmp=$(mktemp)
+version=$(git describe)
+sed -e "s/=.*VERSIONSTRING.*/= \"$version\" -- VERSIONSTRING, DO NOT SUBMIT/" "$file" > "$tmp"
+mv "$tmp" "$file"
diff --git a/src/ShellCheck/Data.hs b/src/ShellCheck/Data.hs
index fb4a1e4..793a4de 100644
--- a/src/ShellCheck/Data.hs
+++ b/src/ShellCheck/Data.hs
@@ -4,7 +4,7 @@ import ShellCheck.Interface
 import Data.Version (showVersion)
 import Paths_ShellCheck (version)
 
-shellcheckVersion = showVersion version
+shellcheckVersion = showVersion version -- VERSIONSTRING
 
 internalVariables = [
     -- Generic