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nshlib/[cd|ls|pwd]: add support for local CWD(Current working directory)

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This PR will still allow basic shell operations such as cd/ls/pwd to be used even when the environment is disabled.

Signed-off-by: chao an <anchao@lixiang.com>
This commit is contained in:
chao an 2024-12-10 21:06:08 +08:00 committed by Xiang Xiao
parent d7ed69200f
commit e861ea8b53
6 changed files with 43 additions and 34 deletions
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14
nshlib/nsh.h
View File

@ -867,10 +867,10 @@ int nsh_fileapp(FAR struct nsh_vtbl_s *vtbl, FAR const char *cmd,
FAR char **argv, FAR const struct nsh_param_s *param);
#endif
#ifndef CONFIG_DISABLE_ENVIRON
/* Working directory support */
FAR const char *nsh_getcwd(void);
FAR const char *nsh_getcwd(FAR struct nsh_vtbl_s *vtbl);
#ifndef CONFIG_DISABLE_ENVIRON
FAR char *nsh_getfullpath(FAR struct nsh_vtbl_s *vtbl,
FAR const char *relpath);
void nsh_freefullpath(FAR char *fullpath);
@ -1071,14 +1071,12 @@ int cmd_irqinfo(FAR struct nsh_vtbl_s *vtbl, int argc, FAR char **argv);
# endif
#endif /* !CONFIG_DISABLE_MOUNTPOINT */
#if !defined(CONFIG_DISABLE_ENVIRON)
# ifndef CONFIG_NSH_DISABLE_CD
#ifndef CONFIG_NSH_DISABLE_CD
int cmd_cd(FAR struct nsh_vtbl_s *vtbl, int argc, FAR char **argv);
# endif
# ifndef CONFIG_NSH_DISABLE_PWD
#endif
#ifndef CONFIG_NSH_DISABLE_PWD
int cmd_pwd(FAR struct nsh_vtbl_s *vtbl, int argc, FAR char **argv);
# endif
#endif /* !CONFIG_DISABLE_MOUNTPOINT */
#endif
#ifndef CONFIG_NSH_DISABLE_ENV
int cmd_env(FAR struct nsh_vtbl_s *vtbl, int argc, FAR char **argv);

8
nshlib/nsh_command.c
View File

@ -162,10 +162,8 @@ static const struct cmdmap_s g_cmdmap[] =
"[<path> [<path> [<path> ...]]]"),
#endif
#ifndef CONFIG_DISABLE_ENVIRON
# ifndef CONFIG_NSH_DISABLE_CD
#ifndef CONFIG_NSH_DISABLE_CD
CMD_MAP("cd", cmd_cd, 1, 2, "[<dir-path>|-|~|..]"),
# endif
#endif
#ifndef CONFIG_NSH_DISABLE_CP
@ -485,10 +483,8 @@ static const struct cmdmap_s g_cmdmap[] =
# endif
#endif
#ifndef CONFIG_DISABLE_ENVIRON
# ifndef CONFIG_NSH_DISABLE_PWD
#ifndef CONFIG_NSH_DISABLE_PWD
CMD_MAP("pwd", cmd_pwd, 1, 1, NULL),
# endif
#endif
#if !defined(CONFIG_NSH_DISABLE_READLINK) && defined(CONFIG_PSEUDOFS_SOFTLINKS)

7
nshlib/nsh_console.c
View File

@ -442,6 +442,13 @@ FAR struct console_stdio_s *nsh_newconsole(bool isctty)
/* Initialize the input stream */
INFD(pstate) = STDIN_FILENO;
/* Initialize current working directory */
#ifdef CONFIG_DISABLE_ENVIRON
strlcpy(pstate->cn_vtbl.cwd, CONFIG_LIBC_HOMEDIR,
sizeof(pstate->cn_vtbl.cwd));
#endif
}
return pstate;

6
nshlib/nsh_console.h
View File

@ -150,6 +150,12 @@ struct nsh_vtbl_s
/* Ctrl tty or not */
bool isctty;
/* Current working directory */
#ifdef CONFIG_DISABLE_ENVIRON
char cwd[PATH_MAX];
#endif
};
/* This structure describes a console front-end that is based on stdin and

35
nshlib/nsh_envcmds.c
View File

@ -49,9 +49,12 @@
#ifndef CONFIG_DISABLE_ENVIRON
static const char g_pwd[] = "PWD";
#ifndef CONFIG_NSH_DISABLE_CD
# ifndef CONFIG_NSH_DISABLE_CD
static const char g_oldpwd[] = "OLDPWD";
# endif
#endif
#if !defined(CONFIG_NSH_DISABLE_CD) || !defined(CONFIG_DISABLE_ENVIRON)
static const char g_home[] = CONFIG_LIBC_HOMEDIR;
#endif
@ -169,12 +172,14 @@ static int nsh_dumpvar(FAR struct nsh_vtbl_s *vtbl, FAR void *arg,
* Name: nsh_getwd
****************************************************************************/
#ifndef CONFIG_DISABLE_ENVIRON
FAR const char *nsh_getcwd(void)
FAR const char *nsh_getcwd(FAR struct nsh_vtbl_s *vtbl)
{
#ifndef CONFIG_DISABLE_ENVIRON
return nsh_getwd(g_pwd);
}
#else
return vtbl->cwd;
#endif
}
/****************************************************************************
* Name: nsh_getfullpath
@ -201,7 +206,7 @@ FAR char *nsh_getfullpath(FAR struct nsh_vtbl_s *vtbl,
/* Get the path to the current working directory */
wd = nsh_getcwd();
wd = nsh_getcwd(vtbl);
/* Fake the '.' directory */
@ -214,13 +219,11 @@ FAR char *nsh_getfullpath(FAR struct nsh_vtbl_s *vtbl,
return nsh_getdirpath(vtbl, wd, relpath);
}
#endif
/****************************************************************************
* Name: nsh_freefullpath
****************************************************************************/
#ifndef CONFIG_DISABLE_ENVIRON
void nsh_freefullpath(FAR char *fullpath)
{
if (fullpath)
@ -228,13 +231,12 @@ void nsh_freefullpath(FAR char *fullpath)
free(fullpath);
}
}
#endif
#endif /* CONFIG_DISABLE_ENVIRON */
/****************************************************************************
* Name: cmd_cd
****************************************************************************/
#ifndef CONFIG_DISABLE_ENVIRON
#ifndef CONFIG_NSH_DISABLE_CD
int cmd_cd(FAR struct nsh_vtbl_s *vtbl, int argc, FAR char **argv)
{
@ -249,14 +251,16 @@ int cmd_cd(FAR struct nsh_vtbl_s *vtbl, int argc, FAR char **argv)
{
path = g_home;
}
#ifndef CONFIG_DISABLE_ENVIRON
else if (strcmp(path, "-") == 0)
{
alloc = strdup(nsh_getwd(g_oldpwd));
path = alloc;
}
#endif
else if (strcmp(path, "..") == 0)
{
alloc = strdup(nsh_getcwd());
alloc = strdup(nsh_getcwd(vtbl));
path = dirname(alloc);
}
else
@ -273,6 +277,12 @@ int cmd_cd(FAR struct nsh_vtbl_s *vtbl, int argc, FAR char **argv)
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "chdir", NSH_ERRNO);
ret = ERROR;
}
#ifdef CONFIG_DISABLE_ENVIRON
else
{
strlcpy(vtbl->cwd, path, sizeof(vtbl->cwd));
}
#endif
/* Free any memory that was allocated */
@ -289,7 +299,6 @@ int cmd_cd(FAR struct nsh_vtbl_s *vtbl, int argc, FAR char **argv)
return ret;
}
#endif
#endif
/****************************************************************************
* Name: cmd_echo
@ -394,18 +403,16 @@ int cmd_env(FAR struct nsh_vtbl_s *vtbl, int argc, FAR char **argv)
* Name: cmd_pwd
****************************************************************************/
#ifndef CONFIG_DISABLE_ENVIRON
#ifndef CONFIG_NSH_DISABLE_PWD
int cmd_pwd(FAR struct nsh_vtbl_s *vtbl, int argc, FAR char **argv)
{
UNUSED(argc);
UNUSED(argv);
nsh_output(vtbl, "%s\n", nsh_getcwd());
nsh_output(vtbl, "%s\n", nsh_getcwd(vtbl));
return OK;
}
#endif
#endif
/****************************************************************************
* Name: cmd_set

7
nshlib/nsh_fscmds.c
View File

@ -1578,12 +1578,7 @@ int cmd_ls(FAR struct nsh_vtbl_s *vtbl, int argc, FAR char **argv)
}
else if (optind >= argc)
{
#ifndef CONFIG_DISABLE_ENVIRON
relpath = nsh_getcwd();
#else
nsh_error(vtbl, g_fmtargrequired, argv[0]);
return ERROR;
#endif
relpath = nsh_getcwd(vtbl);
}
else
{