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authorMisty De Meo2013-01-09 17:04:02 -0600
committerMisty De Meo2013-01-09 17:09:28 -0600
commit9643ba6014783e3e055f4cf3af8a30a40c78d3d4 (patch)
treeea9121ddeba1437945576c45150f9d9f0dad43b3 /Library
parent21fa09cebb15685ece5f571f7c45ff357708d55a (diff)
downloadhomebrew-9643ba6014783e3e055f4cf3af8a30a40c78d3d4.tar.bz2
doctor: use -V for python version
`python --version` doesn't work in some (very) old versions of python. While I doubt this is going to come up very often, it's theoretically possible someone has an old python first in their path. (python -V works on all versions I'm aware of, including python3, and comes before --version in the --help anyway.) Also skips the warning in case the regexp matches nothing, which probably shouldn't happen. But if it does we shouldn't produce the wrong warning.
Diffstat (limited to 'Library')
-rw-r--r--Library/Homebrew/cmd/doctor.rb6
1 files changed, 4 insertions, 2 deletions
diff --git a/Library/Homebrew/cmd/doctor.rb b/Library/Homebrew/cmd/doctor.rb
index 76f35bb12..9ab3c46f8 100644
--- a/Library/Homebrew/cmd/doctor.rb
+++ b/Library/Homebrew/cmd/doctor.rb
@@ -890,8 +890,10 @@ end
def check_for_bad_python_symlink
return unless which "python"
- # Indeed Python --version outputs to stderr (WTF?)
- `python --version 2>&1` =~ /Python (\d+)\./
+ # Indeed Python -V outputs to stderr (WTF?)
+ `python -V 2>&1` =~ /Python (\d+)\./
+ # This won't be the right warning if we matched nothing at all
+ return if $1.nil?
unless $1 == "2" then <<-EOS.undent
python is symlinked to python#$1
This will confuse build scripts and in general lead to subtle breakage.