diff options
Diffstat (limited to 'doc/PROGRAMMING')
| -rw-r--r-- | doc/PROGRAMMING | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/doc/PROGRAMMING b/doc/PROGRAMMING index b76bc9ec..bb8a35b9 100644 --- a/doc/PROGRAMMING +++ b/doc/PROGRAMMING @@ -168,9 +168,14 @@ doit([$options, ]@command) to that file. [debhelper (>= 10.7)] * chdir => A directory. The child process will do a chdir into that directory before executing the command. [debhelper (>= 10.9)] + * update_env => A hashref. Each key in it represents an environment variable + that should be set in the child (possibly replacing the existing value) + prior to the exec. If the value is undef, the environment variable will + be unset. Environment variables in %ENV but not listed in the update_env + hashref will be preserved as-is. [debhelper (>= 11.1)] This will *not* invoke a shell, so meta characters will not have any special - meaning. Use complex_doit for that. + meaning. Use complex_doit for that (or emulate via "bash -c"). NB: In compat 11 and below, there was a bug that would make doit fork a shell in one special case. This is deprecated and will be removed in compat 12. The detection code for this can be disabled by passing an empty hashref for |