From bfa5a059b9ab12562b6c9ae530e33e6369abbc24 Mon Sep 17 00:00:00 2001
From: Dilum Aluthge <dilum@aluthge.com>
Date: Tue, 18 Jun 2024 22:08:14 -0400
Subject: [PATCH] npm run build

---
 lib/installer.js | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/lib/installer.js b/lib/installer.js
index 4232965a..3655765e 100644
--- a/lib/installer.js
+++ b/lib/installer.js
@@ -291,7 +291,22 @@ function installJulia(dest, versionInfo, version, arch) {
                 }
                 else {
                     // This is the more common path. Using .tar.gz is much faster
-                    yield exec.exec('powershell', ['-Command', `tar xf ${juliaDownloadPath} --strip-components=1 -C ${dest}`]);
+                    const tarInput = core.getInput('tar').trim();
+                    if (tarInput) {
+                        // If the user provides the `tar` input, use that.
+                        const tar_command = `& "${tarInput}" xf ${juliaDownloadPath} --strip-components=1 -C ${dest}`;
+                        core.debug(`tar_command: ${tar_command}`);
+                        yield exec.exec('powershell', ['-Command', tar_command]);
+                    }
+                    else {
+                        // Otherwise, on Windows, use the Windows system tar (not the Git Bash tar).
+                        // https://github.com/julia-actions/setup-julia/issues/205
+                        //
+                        // // don't use the Git bash provided tar. Issue #205
+                        const tar_command = `& "$env:WINDIR/System32/tar" xf ${juliaDownloadPath} --strip-components=1 -C ${dest}`;
+                        core.debug(`tar_command: ${tar_command}`);
+                        yield exec.exec('powershell', ['-Command', tar_command]);
+                    }
                 }
                 return dest;
             case 'darwin':