From b67cb01edcecf0f08d591df00ed7b2d08f84ae7c Mon Sep 17 00:00:00 2001
From: Alex Crichton <alex@alexcrichton.com>
Date: Thu, 18 Jan 2018 07:14:12 -0800
Subject: [PATCH] [beta] Attempt to fix prerelease version calculation

We got #47396 merged but it looks like rcs failed to deploy the beta because
when it tried to calculate the beta version its cwd was different. Let's try to
fix this bug and fix auto-deploy by explicitly setting the `current_dir` for git
commands.
---
 src/bootstrap/lib.rs | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/bootstrap/lib.rs b/src/bootstrap/lib.rs
index 8813b5dc50087..a10868b84d264 100644
--- a/src/bootstrap/lib.rs
+++ b/src/bootstrap/lib.rs
@@ -787,6 +787,7 @@ impl Build {
                 .arg("ls-remote")
                 .arg("origin")
                 .arg("beta")
+                .current_dir(&self.src)
         );
         let beta = beta.trim().split_whitespace().next().unwrap();
         let master = output(
@@ -794,6 +795,7 @@ impl Build {
                 .arg("ls-remote")
                 .arg("origin")
                 .arg("master")
+                .current_dir(&self.src)
         );
         let master = master.trim().split_whitespace().next().unwrap();
 
@@ -802,7 +804,8 @@ impl Build {
             Command::new("git")
                 .arg("merge-base")
                 .arg(beta)
-                .arg(master),
+                .arg(master)
+                .current_dir(&self.src),
         );
         let base = base.trim();
 
@@ -813,7 +816,8 @@ impl Build {
                 .arg("rev-list")
                 .arg("--count")
                 .arg("--merges")
-                .arg(format!("{}...HEAD", base)),
+                .arg(format!("{}...HEAD", base))
+                .current_dir(&self.src),
         );
         let n = count.trim().parse().unwrap();
         self.prerelease_version.set(Some(n));