hack_r_loaders {srcpkgs}

instruments the R loaders to make them aware of source packages

Description

hacks library() and loadNamespace() using the base R tracer function trace(). library(pkg) will basically call pkg_load(pkg) if the source package pkg is managed by srcpkgs

Usage

hack_r_loaders()

Details

N.B: usually you do not need to call that function explicitly. The function is reentrant.

Value

no return value, called for side-effects

Package startup

At package startup (actually .OnAttach()), hack_r_loaders() will be automatically called to hack the R loaders, UNLESS this is inhibited via the option srcpkgs.inhibit_r_loaders_hack or the environment variable SRCPKGS.INHIBIT_R_LOADERS_HACK. You may set any value like TRUE, "TRUE", 1 or "1".

See Also

unhack_r_loaders()

Examples

# hack library
hack_r_loaders()

# unhack
unhack_r_loaders()

# prevent automatic hacking when srcpkgs is loaded
options(srcpkgs.inhibit_r_loaders_hack=TRUE)
# or
Sys.setenv(SRCPKGS.INHIBIT_R_LOADERS_HACK="1")
library(srcpkgs)