Module env
Copyright © 2012 Serge Aleynikov
Authors: Serge Aleynikov (saleyn@gmail.com).
Description
Environment utilsFunction Index
get_env/3 | Get application configuration. |
home_dir/0 | |
normalize_path/1 | |
replace_env_vars/1 | Perform replacement of environment variable values in the OsPath. |
replace_env_vars/2 | Perform replacement of environment variable values in the OsPath. |
subst_env_path/1 | |
subst_env_path/2 |
Function Details
get_env/3
get_env(App :: atom(), Key :: atom(), Default :: any()) -> any()
Get application configuration
home_dir/0
home_dir() -> any()
normalize_path/1
normalize_path(Path) -> any()
replace_env_vars/1
replace_env_vars(OsPath :: list() | binary()) -> list() | binary()
Perform replacement of environment variable values in the OsPath.
Example:
env:replace_env_vars("~/app") -> "/home/cuser/app"
env:replace_env_vars("${HOME}/app") -> "/home/cuser/app"
env:replace_env_vars("$USER/app") -> "cuser/app"
See also: os:getenv/1.
replace_env_vars/2
replace_env_vars(OsPath :: list() | binary(),
Bindings :: [{atom() | string(), string()}]) ->
list() | binary()
Perform replacement of environment variable values in the OsPath.
This function also allows to provide a list of Bindings
that
override the environment (they are checked before environment
variables are looked up).
Example:
env:replace_env_vars("~/", [{"HOME", "/home/cu"}]) -> "/home/cu/"
env:replace_env_vars("~/", [{home, "/home/cu"}]) -> "/home/cu/"
env:replace_env_vars("$A/", [{a, "/aaa"}]) -> "/aaa/"
env:replace_env_vars("${A}/",[{a, "/aaa"}]) -> "/aaa/"
See also: os:getenv/1.
subst_env_path/1
subst_env_path(OsPath :: list() | binary()) -> list() | binary()
subst_env_path/2
subst_env_path(OsPath :: list() | binary(),
Bindings :: [{atom() | string(), string()}]) ->
list() | binary()