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Use env var NNNLVL to track nested level

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Arun Prakash Jana 2019-02-06 22:59:33 +05:30
parent 0950f058f1
commit af7e88ab5e
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GPG key ID: A75979F35C080412
1 changed files with 36 additions and 22 deletions
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58
src/nnn.c
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@ -428,11 +428,12 @@ static const char * const messages[] = {
#define NNN_SCRIPT 5 #define NNN_SCRIPT 5
#define NNN_NOTE 6 #define NNN_NOTE 6
#define NNN_TMPFILE 7 #define NNN_TMPFILE 7
#define NNN_USE_EDITOR 8 #define NNNLVL 8 /* strings end here */
#define NNN_SHOW_HIDDEN 9 #define NNN_USE_EDITOR 9 /* flags begin here */
#define NNN_NO_AUTOSELECT 10 #define NNN_SHOW_HIDDEN 10
#define NNN_RESTRICT_NAV_OPEN 11 #define NNN_NO_AUTOSELECT 11
#define NNN_RESTRICT_0B 12 #define NNN_RESTRICT_NAV_OPEN 12
#define NNN_RESTRICT_0B 13
static const char * const env_cfg[] = { static const char * const env_cfg[] = {
"NNN_BMS", "NNN_BMS",
@ -443,6 +444,7 @@ static const char * const env_cfg[] = {
"NNN_SCRIPT", "NNN_SCRIPT",
"NNN_NOTE", "NNN_NOTE",
"NNN_TMPFILE", "NNN_TMPFILE",
"NNNLVL",
"NNN_USE_EDITOR", "NNN_USE_EDITOR",
"NNN_SHOW_HIDDEN", "NNN_SHOW_HIDDEN",
"NNN_NO_AUTOSELECT", "NNN_NO_AUTOSELECT",
@ -452,14 +454,12 @@ static const char * const env_cfg[] = {
/* Required env vars */ /* Required env vars */
#define SHELL 0 #define SHELL 0
#define SHLVL 1 #define VISUAL 1
#define VISUAL 2 #define EDITOR 2
#define EDITOR 3 #define PAGER 3
#define PAGER 4
static const char * const envs[] = { static const char * const envs[] = {
"SHELL", "SHELL",
"SHLVL",
"VISUAL", "VISUAL",
"EDITOR", "EDITOR",
"PAGER", "PAGER",
@ -783,8 +783,7 @@ static uint xatoi(const char *str)
if (!str) if (!str)
return 0; return 0;
while (xisdigit(*str)) while (xisdigit(*str)) {
{
val = val * 10 + (*str - '0'); val = val * 10 + (*str - '0');
++str; ++str;
} }
@ -792,6 +791,18 @@ static uint xatoi(const char *str)
return val; return val;
} }
static char *xitoa(uint val)
{
static const char hexbuf[] = "0123456789";
static char ascbuf[32] = {0};
static int i;
for (i = 30; val && i; --i, val /= 10)
ascbuf[i] = hexbuf[val % 10];
return &ascbuf[++i];
}
/* Writes buflen char(s) from buf to a file */ /* Writes buflen char(s) from buf to a file */
static void writecp(const char *buf, const size_t buflen) static void writecp(const char *buf, const size_t buflen)
{ {
@ -953,15 +964,15 @@ static bool initcurses(void)
*/ */
static void spawn(const char *file, const char *arg1, const char *arg2, const char *dir, uchar flag) static void spawn(const char *file, const char *arg1, const char *arg2, const char *dir, uchar flag)
{ {
static const char *shlvl; pid_t pid;
static pid_t pid; int status;
static int status; const char *tmp;
/* Swap args if the first arg is NULL and second isn't */ /* Swap args if the first arg is NULL and second isn't */
if (!arg1 && arg2) { if (!arg1 && arg2) {
shlvl = arg1; tmp = arg1;
arg1 = arg2; arg1 = arg2;
arg2 = shlvl; arg2 = tmp;
} }
if (flag & F_NORMAL) if (flag & F_NORMAL)
@ -972,13 +983,12 @@ static void spawn(const char *file, const char *arg1, const char *arg2, const ch
if (dir != NULL) if (dir != NULL)
status = chdir(dir); status = chdir(dir);
shlvl = getenv(envs[SHLVL]); tmp = getenv(env_cfg[NNNLVL]);
/* Show a marker (to indicate nnn spawned shell) */ /* Show a marker (to indicate nnn spawned shell) */
if (flag & F_MARKER && shlvl != NULL) { if (flag & F_MARKER && tmp)
fprintf(stdout, "\n +-++-++-+\n | n n n |\n +-++-++-+\n\n"); fprintf(stdout, "\n +-++-++-+\n | n n n |\n +-++-++-+\n\n"
fprintf(stdout, "Next shell level: %d\n", xatoi(shlvl) + 1); "Last nnn level: %d\n", xatoi(tmp));
}
/* Suppress stdout and stderr */ /* Suppress stdout and stderr */
if (flag & F_NOTRACE) { if (flag & F_NOTRACE) {
@ -4162,6 +4172,10 @@ int main(int argc, char *argv[])
/* Get custom opener, if set */ /* Get custom opener, if set */
opener = xgetenv(env_cfg[NNN_OPENER], utils[OPENER]); opener = xgetenv(env_cfg[NNN_OPENER], utils[OPENER]);
/* Set nnn neting level (idletimeout used as tmp var) */
idletimeout = xatoi(getenv(env_cfg[NNNLVL]));
setenv(env_cfg[NNNLVL], xitoa(++idletimeout), 1);
/* Get locker wait time, if set */ /* Get locker wait time, if set */
idletimeout = xatoi(getenv(env_cfg[NNN_IDLE_TIMEOUT])); idletimeout = xatoi(getenv(env_cfg[NNN_IDLE_TIMEOUT]));
DPRINTF_U(idletimeout); DPRINTF_U(idletimeout);