Contents
What does require package do?
This is in case the required package contains macros that the byte compiler must know about. It also avoids byte compiler warnings for functions and variables defined in the file loaded with require . The compiler ignores the provide , then processes the require by loading the file in question.
What does package initialize do Emacs?
package-initialize goes through the list of installed packages and tries to run their auto-loads (and possibly defer further work) so that all the packages I’ve previously installed will work.
What does require do in Emacs?
When the code (require ‘ symbol_name ) is called, emacs checks if that symbol name is already in the features list. If not, load it. (emacs will guess a file name based on the symbol name. Or, the require function may specify a file name in the 2nd argument.)
What’s the difference between require and use-package in Emacs?
require is a core function in emacs. use-package does many things and features more than require. It can download a package if you don’t have it, can set keys and other customization for a package, etc.’ There are 2 major ways to install a package.
What does ” cannot open load file ” mean in Emacs?
I’ve got “Cannot open load file” error at (require ‘org-mime) while load-path variable seems to be all right: load-path is a variable defined in `C source code’.
When to use’require’a package which is’autoload’?
On its own an ;;;###autoload cookie does nothing; but if you installed evil using package.el, then they will have been parsed and turned into a file of autoload declarations, which Emacs will load when packages are initialised.
What happens when you load a file that requires another file?
There is an interesting issue that happens when you load a file that requires another file — the file that is required must be loaded in chronological order before the next file. For example, if B requires A then A must be placed higher up in chronological order so that when B loads, A is already loaded.