tree 2943754e9a0cec2e1853db15e4683a00979f2784
parent b2f5e2684da060dd821bf90f88df8b6dc9401a40
author Johannes Sixt <johannes.sixt@telecom.at> 1200315933 +0100
committer Johannes Sixt <johannes.sixt@telecom.at> 1214462836 +0200

Windows: Make 'git help -a' work.

git help -a scans the PATH for git commands. On Windows it failed for two
reasons:

- The PATH separator is ';', not ':' on Windows.

- stat() does not set the executable bit.

We now open the file and guess whether it is executable.

The result of the guess is good enough for the list of git commands, but
it is of no use for a general stat() implementation because (1) it is a
guess, (2) the user has no way to influence the outcome (via chmod or
similar), and (3) it would reduce stat() performance by an unacceptable
amount. Therefore, this strategy is a special-case local to help.c.

Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>