From 8c50ea9dc0715617405a5f6688babbe9e317b32c Mon Sep 17 00:00:00 2001
From: Jonathon Anderson <17242663+blue42u@users.noreply.github.com>
Date: Tue, 2 Aug 2022 13:45:50 -0500
Subject: spack ci rebuild: Don't install in a login shell (#31771)

On some systems the shell in login mode wipes important parts of the
environment, such as PATH. This causes the build to fail since it can't
find `spack`.

For better robustness, don't use a login shell.

In a full CI job the final spack install is run in an environment formed by scripts running in this order:

export AWS_SECRET=...                  # 1. Load environment from GitLab project variables
source spack/share/spack/setup-env.sh  # 2. Load Spack into the environment (PATH)
spack env activate -V concrete_env     # 3. Activate the concrete environment
source /etc/profile                    # 4. Bash login shell (from -l)
spack install ...
Whereas when a user launches their own container with (docker|podman) run -it, they end up running spack install in an environment formed in this order:

source /etc/bash.bashrc                # (not 4). Bash interactive shell (default with TTY)
export AWS_SECRET=...                  #~1. Manually load environment from GitLab project variables
source spack/share/spack/setup-env.sh  # 2. Load Spack into the environment (PATH)
spack env activate -V concrete_env     # 3. Activate the concrete environment
spack install ...
The big problem being that (4) has a completely different position and content (on Leap 15 and possibly other containers).

So in context, this PR removes (4) from the CI job case, leaving us with the simpler:

export AWS_SECRET=...                  # 1. Load environment from GitLab project variables
source spack/share/spack/setup-env.sh  # 2. Load Spack into the environment (PATH)
spack env activate -V concrete_env     # 3. Activate the concrete environment
spack install ...
---
 lib/spack/spack/cmd/ci.py | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/lib/spack/spack/cmd/ci.py b/lib/spack/spack/cmd/ci.py
index 4944f61b2a..3087a7881e 100644
--- a/lib/spack/spack/cmd/ci.py
+++ b/lib/spack/spack/cmd/ci.py
@@ -521,10 +521,9 @@ def ci_rebuild(args):
     install_copy_path = os.path.join(repro_dir, "install.sh")
     shutil.copyfile("install.sh", install_copy_path)
 
-    # Run the generated install.sh shell script as if it were being run in
-    # a login shell.
+    # Run the generated install.sh shell script
     try:
-        install_process = subprocess.Popen(["bash", "-l", "./install.sh"])
+        install_process = subprocess.Popen(["bash", "./install.sh"])
         install_process.wait()
         install_exit_code = install_process.returncode
     except (ValueError, subprocess.CalledProcessError, OSError) as inst:
-- 
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