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sudo-utils
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sudo utilities for emacs
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sudo-utils
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# Introduction This package provides some useful interactive and non-interactive functions for working with *sudo* shell program. ## Quickstart Just invoke ```sudo-utils-shell-command``` command through ```M-x``` to execute a shell command via sudo. ## API This package exposes the following functions: * ```(sudo-utils-shell-command COMMAND)```. This interactive function prompt for the shell COMMAND to be executed via sudo. Additionally, if sudo requires a password for the specified COMMAND, it also prompts the user for his password. Then it executes the COMMAND via sudo asynchronously and displays the result in the minibuffer or in a separate buffer, depending on lenght of the output. User default shell is used for the execution of COMMAND. * ```(sudo-utils-program PROGRAM-AND-ARGS)```. This interactive function prompt for the program with arguments PROGRAM-AND-ARGS to be executed via sudo. Additionally, if sudo requires a password for the specified program, it also prompts the user for his password. Then it executes the program via sudo asynchronously and displays the result in the minibuffer or in a separate buffer, depending on lenght of the output. * ```(sudo-utils-shell-command-async COMMAND CALLBACK &optional PASSWORD SHELL)```. This non-interative function executes asynchronously shell command COMMAND as root via sudo. If user PASSWORD is required to execute PROGRAM via sudo, it shall be provided as optional argument. At the end of COMMAND exectution, the CALLBACK function is called if not nil. The callback function has signature ```(callback EXITCODE BUFER)``` where: * EXITCODE is the exitcode of the program. * BUFFER is a buffer containing the program stardard output and standard error. * ```(sudo-utils-exec-program-async PROGRAM CALLBACK &optional PASSWORD &rest ARGS)```. This non-interative function executes asynchronously program PROGRAM with arguments ARGS as root via sudo. If user PASSWORD is required to execute PROGRAM via sudo, it shall be provided as optional argument. At the end of program exectution, the CALLBACK function is called if not nil. The callback function has signature ```(callback EXITCODE BUFER)``` where: * EXITCODE is the exitcode of the program. * BUFFER is a buffer containing the program stardard output and standard error. * ```(sudo-utils-exec-program-sync PROGRAM &optional PASSWORD &rest ARGS)```. This non-interative function executes synchronously program PROGRAM with arguments ARGS as root via sudo. It returns a list containing the program exit code and output as string. If user PASSWORD is required to execute PROGRAM via sudo, it shall be provided as optional argument. * ```(sudo-utils-shell-command-sync COMMAND &optional PASSWORD SHELL)```. This non-interative function executes synchronously shell command COMMAND as root via sudo. It returns a list containing the program exit code and output as string. If user PASSWORD is required to execute PROGRAM via sudo, it shall be provided as optional argument. If SHELL is not provided, the user default shell is used. * ```(sudo-utils-allowed-programs &optional PASSWORD)```. This non-interactive function returns an alist with two keys: * *passwd* key, that is associated to the list of programs that can be executed via sudo providing the user password. If the user can run any command via sudo providing his password, the list contains the sole "ALL" element. * *nopasswd* key, that is associated to the list of programs that can be executed via sudo without providing the user password. If the user can run any command via sudo without providing his password, the list contains the sole "ALL" element. If optional argument PASSWORD is not passed, the returned alist might be empty depending on sudo configuration. * ```(sudo-utils-can-p PROGRAM)```. This non-interactive function returns *t* if the user can run PROGRAM via sudo, otherwise returns *nil*. * ```(sudo-utils-can-run-p)```. This non-interactive function returns *t* if the user can run sudo, otherwise it returns *nil*. * ```(sudo-utils-can-run-program-p PROGRAM &optional PASSWORD)```. This non-interactive function returns *t* if the user can run PROGRAM program via sudo, *nil* if he cannot and *unknown* symbol if it is not possible to determine if the user can. Passing the optional argument PASSWORD allows to obtain always a known result, i.e. result can be only *t* or *nil*. * ```(sudo-utils-require-password-p PROGRAM &optional PASSWORD)```. This non-interactive function returns *t* if the password is required for running program PROGRAM, *nil* if it is not required and *unknown* symbol if it is not possible to determine if the password is required. Passing the optional argument PASSWORD allows to obtain always a known result, i.e. result can be only *t* or *nil*. * ```(sudo-utils-abs-path)```. This non-interactive function returns the absolute path of sudo shell program. If the path of sudo cannot be found (sudo has to be in user's path), this function returns *nil*. ## Keybindings The package does not introduce any new keybinding. It is suggested to bind ```sudo-utils-shell-command``` to a key for executing commands via sudo more quickly. ## Contact Please report bugs, requests and suggestions to Alpha Catharsis <alpha.catharsis@gmail.com> or on Github.
