debuginstall: add Python information to debuginstall output (issue4128)
This change adds to the output of "hg debuginstall" information about the
Python being used by Mercurial. It adds both the path to the Python
executable (i.e. the value of sys.executable) and the version of Python
(specifically the major, minor, and micro versions).
Below is an example of what the output looks like after this change.
The marked lines are the new output lines:
$ hg debuginstall
checking encoding (UTF-8)...
-->showing Python executable (/Users/chris/.virtualenvs/default/bin/python)
-->showing Python version (2.7.6)
checking Python lib (/Users/chris/.virtualenvs/default/lib/python2.7)...
checking installed modules (/Users/chris/mercurial)...
checking templates (/Users/chris/mercurial/templates)...
checking commit editor...
checking username...
no problems detected
Note that we use the word "showing" without an ellipsis for the new lines
because, unlike the other lines (except for "Python lib" which will be
adjusted in a subsequent commit), no check follows the display of this
information.
$ hg init
$ echo This is file a1 > a
$ echo This is file b1 > b
$ hg add a b
$ hg commit -m "commit #0"
$ echo This is file b22 > b
$ hg commit -m "comment #1"
$ hg update 0
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ rm b
$ hg commit -A -m "comment #2"
removing b
created new head
$ hg update 1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg update
abort: not a linear update
(merge or update --check to force update)
[255]
$ rm b
$ hg update -c
abort: uncommitted changes
[255]
$ hg revert b
$ hg update -c
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ mv a c
In theory, we shouldn't need the "-y" below, but it prevents this test
from hanging when "hg update" erroneously prompts the user for "keep
or delete".
Should abort:
$ hg update -y 1
abort: uncommitted changes
(commit or update --clean to discard changes)
[255]
$ mv c a
Should succeed:
$ hg update -y 1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved