[lmi-commits] [lmi] master a48eb51 1/4: Establish a global $MINIMAL_PATH

[Greg Chicares]

branch: master
commit a48eb513812d88ff7d0e4449a97f82982385d08d
Author: Gregory W. Chicares <address@hidden>
Commit: Gregory W. Chicares <address@hidden>

    Establish a global $MINIMAL_PATH
    
    Motivation: frequent shifts among architectures, if made thus:
      PATH=32_bit_path;$PATH
      PATH=64_bit_path;$PATH
      PATH=32_bit_path;$PATH
    would cause $PATH to grow monstrously. This method:
      PATH=32_bit_path;$MINIMAL_PATH
      PATH=64_bit_path;$PATH
    prevents that.
    
    The default global value is readily customized in startup files.
---
 gwc/.zshrc     | 6 ++++++
 install_msw.sh | 5 +++--
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/gwc/.zshrc b/gwc/.zshrc
index a87017f..75d420c 100644
--- a/gwc/.zshrc
+++ b/gwc/.zshrc
@@ -2,7 +2,13 @@
 
 export WINEPATH='Z:\\opt\\lmi\\local\\bin;Z:\\opt\\lmi\\local\\lib'
 export LMI_HOST=i686-w64-mingw32
+
+# Minimal system path.
+export MINIMAL_PATH="/usr/bin:/bin:/usr/sbin:/sbin"
+export PATH="$MINIMAL_PATH"
+# For the nonce, still do this:
 export PATH="/opt/lmi/local/bin:/opt/lmi/local/lib:$PATH"
+
 # At a regular user prompt, outside the chroot, do this:
 #   $ echo $DISPLAY
 # and replace :0.0 below with the string it returns:
diff --git a/install_msw.sh b/install_msw.sh
index 63b70b3..436580a 100755
--- a/install_msw.sh
+++ b/install_msw.sh
@@ -35,8 +35,9 @@ stamp0=$(date -u +'%Y-%m-%dT%H:%M:%SZ')
 echo "Started: $stamp0"
 
 # This should work with a rather minimal path.
-minimal_path="/usr/bin:/bin:/usr/sbin:/sbin"
-export PATH=$minimal_path
+
+minimal_path=${MINIMAL_PATH:-"/usr/bin:/bin:/usr/sbin:/sbin"}
+export PATH="$minimal_path"
 
 # '--jobs=4': big benefit for multicore, no penalty for single core
 #   (but don't force it to 4 if it's already set).