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nix-daemon.sh profile script: operate under set -u

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If the profile is sourced inside a script with `set -u`, the check for
__ETC_PROFILE_NIX_SOURCED and NIX_SSL_CERT_FILE would raise an error.
A simple guard around this check allows the script to operate under
standard environments (where it is fairly reasonable to assume USER
and HOME are set.)
This commit is contained in:
Graham Christensen 2018-05-30 09:11:09 -04:00
parent f9940f47b3
commit d459d3307c
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GPG key ID: ACA1C1D120C83D5C
1 changed files with 2 additions and 2 deletions
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4
scripts/nix-profile-daemon.sh.in
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@ -1,5 +1,5 @@
# Only execute this file once per shell.
if [ -n "$__ETC_PROFILE_NIX_SOURCED" ]; then return; fi
if [ -n "${__ETC_PROFILE_NIX_SOURCED:-}" ]; then return; fi
__ETC_PROFILE_NIX_SOURCED=1
# Set up secure multi-user builds: non-root users build through the
@ -51,7 +51,7 @@ fi
# Set $NIX_SSL_CERT_FILE so that Nixpkgs applications like curl work.
if [ ! -z "$NIX_SSL_CERT_FILE" ]; then
if [ ! -z "${NIX_SSL_CERT_FILE:-}" ]; then
: # Allow users to override the NIX_SSL_CERT_FILE
elif [ -e /etc/ssl/certs/ca-certificates.crt ]; then # NixOS, Ubuntu, Debian, Gentoo, Arch
export NIX_SSL_CERT_FILE=/etc/ssl/certs/ca-certificates.crt