env (util v1.3.5)

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Environment utils

Author: Serge Aleynikov saleyn@gmail.com Copyright: 2012 Serge Aleynikov

Summary

Functions

get_env(App, Key, Default)

Get application configuration

home_dir()
normalize_path(Path)
replace_env_vars(OsPath)

Perform replacement of environment variable values in the OsPath.

replace_env_vars(OsPath, Bindings)

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).

subst_env_path(OsPath) deprecated
subst_env_path(OsPath, Bindings) deprecated

Functions

get_env(App, Key, Default)

-spec get_env(atom(), atom(), any()) -> any().

Get application configuration

home_dir()

normalize_path(Path)

replace_env_vars(OsPath)

-spec replace_env_vars(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: os:getenv/1.

replace_env_vars(OsPath, Bindings)

-spec replace_env_vars(list() | binary(), [{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: os:getenv/1.

subst_env_path(OsPath)

This function is deprecated. env:subst_env_path/1 is deprecated; use replace_env_vars/1 instead. 
-spec subst_env_path(list() | binary()) -> list() | binary().

subst_env_path(OsPath, Bindings)

This function is deprecated. env:subst_env_path/2 is deprecated; use replace_env_vars/2 instead. 
-spec subst_env_path(list() | binary(), [{atom() | string(), string()}]) -> list() | binary().