shell.c File Reference

#include <string.h>
#include <assert.h>
#include <stdbool.h>
#include <stdlib.h>
#include <uv.h>
#include "nvim/ascii.h"
#include "nvim/lib/kvec.h"
#include "nvim/log.h"
#include "nvim/event/loop.h"
#include "nvim/event/libuv_process.h"
#include "nvim/event/rstream.h"
#include "nvim/os/shell.h"
#include "nvim/os/signal.h"
#include "nvim/types.h"
#include "nvim/main.h"
#include "nvim/vim.h"
#include "nvim/message.h"
#include "nvim/memory.h"
#include "nvim/ui.h"
#include "nvim/screen.h"
#include "nvim/memline.h"
#include "nvim/option_defs.h"
#include "nvim/charset.h"
#include "nvim/strings.h"

Data Structures
struct	DynamicBuffer

Macros
#define	DYNAMIC_BUFFER_INIT   { NULL, 0, 0 }
#define	NS_1_SECOND   1000000000U
#define	OUT_DATA_THRESHOLD   1024 * 10U
#define	MAX_CHUNK_SIZE   (OUT_DATA_THRESHOLD / 2)

Functions
char **	shell_build_argv (const char *cmd, const char *extra_args) FUNC_ATTR_NONNULL_RET
void	shell_free_argv (char **argv)
char *	shell_argv_to_str (char **const argv) FUNC_ATTR_NONNULL_ALL
int	os_call_shell (char_u *cmd, ShellOpts opts, char_u *extra_args)
int	os_system (char **argv, const char *input, size_t len, char **output, size_t *nread) FUNC_ATTR_NONNULL_ARG(1)

Macro Definition Documentation

#define DYNAMIC_BUFFER_INIT   { NULL, 0, 0 }

#define MAX_CHUNK_SIZE   (OUT_DATA_THRESHOLD / 2)

#define NS_1_SECOND   1000000000U

#define OUT_DATA_THRESHOLD   1024 * 10U

Function Documentation

int os_call_shell	(	char_u *	cmd,
		ShellOpts	opts,
		char_u *	extra_args
	)

Calls the user-configured 'shell' (p_sh) for running a command or wildcard expansion.

Parameters

cmd	The command to execute, or NULL to run an interactive shell.
opts	Options that control how the shell will work.
extra_args	Extra arguments to the shell, or NULL.

Returns

shell command exit code

int os_system	(	char **	argv,
		const char *	input,
		size_t	len,
		char **	output,
		size_t *	nread
	)

os_system - synchronously execute a command in the shell

example: char *output = NULL; size_t nread = 0; char *argv[] = {"ls", "-la", NULL}; int exitcode = os_sytem(argv, NULL, 0, &output, &nread);

Parameters

	argv	The commandline arguments to be passed to the shell. argv will be consumed.
	input	The input to the shell (NULL for no input), passed to the stdin of the resulting process.
	len	The length of the input buffer (not used if input == NULL)
[out]	output	Pointer to a location where the output will be allocated and stored. Will point to NULL if the shell command did not output anything. If NULL is passed, the shell output will be ignored.
[out]	nread	the number of bytes in the returned buffer (if the returned buffer is not NULL)

Returns

the return code of the process, -1 if the process couldn't be started properly

char* shell_argv_to_str

(

char **const

argv

)

Joins shell arguments from argv into a new string. If the result is too long it is truncated with ellipsis ("...").

Returns

[allocated] argv joined to a string.

char** shell_build_argv	(	const char *	cmd,
		const char *	extra_args
	)

Builds the argument vector for running the user-configured 'shell' (p_sh) with an optional command prefixed by 'shellcmdflag' (p_shcf). E.g.:

["shell", "-extra_args", "-shellcmdflag", "command with spaces"]

Parameters

cmd	Command string, or NULL to run an interactive shell.
extra_args	Extra arguments to the shell, or NULL.

Returns

Newly allocated argument vector. Must be freed with shell_free_argv.

void shell_free_argv

(

char **

argv

)

Releases the memory allocated by shell_build_argv.

Parameters

argv	The argument vector.