Use key-plugin pairs for running plugins

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Arun Prakash Jana 2019-08-14 19:57:44 +05:30
parent 7b59a7dba9
commit 02b3273233
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4 changed files with 87 additions and 87 deletions

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@ -62,7 +62,9 @@
`nnn` is a full-featured file manager for low-end devices and the regular desktop. It's extremely light and fast (**[performance](https://github.com/jarun/nnn/wiki/performance)**).
`nnn` is also a disk usage analyzer, a fuzzy app launcher, a batch file renamer and a file picker. Many **[plugins](https://github.com/jarun/nnn/tree/master/plugins)** are available to extend its power. Custom plugins are easy to add. There's an independent [(neo)vim picker plugin](https://github.com/mcchrish/nnn.vim) project.
`nnn` is also a disk usage analyzer, a fuzzy app launcher, a batch file renamer and a file picker.
Many **[plugins](https://github.com/jarun/nnn/tree/master/plugins)** are available to extend its power. Plugins can be run directly with custom keybinds. There's an independent [(neo)vim picker plugin](https://github.com/mcchrish/nnn.vim) project. Custom plugins are easy to add.
It runs on Linux, macOS, Raspberry Pi, BSD, Cygwin, Linux subsystem for Windows and Termux on Android. `nnn` works seamlessly with DEs and GUI utilities. It's nearly zero-config (with sensible defaults) and can be setup in less than 5 minutes.
@ -216,8 +218,8 @@ Option completion scripts for Bash, Fish and Zsh can be found in respective subd
| Example `export` | Description |
| --- | --- |
| `NNN_BMS='d:~/Documents;D:~/Docs archive/'` | specify bookmarks (max 10) |
| `NNN_PLUG='fzy-open;mocplay;nmount;thumb'` | plugins to run with <kbd>xN</kbd> |
| `NNN_BMS='d:~/Documents;D:~/Docs archive/'` | key-bookmark pairs [max 10] |
| `NNN_PLUG='o:fzy-open;p:mocplay;m:nmount;t:thumb'` | key-plugin pairs (<kbd>x-key</kbd> to run) [max 10] |
| `NNN_USE_EDITOR=1` | open text files in `$VISUAL` (else `$EDITOR`, fallback vi) |
| `NNN_CONTEXT_COLORS='1234'` | specify per context color [default: '4444' (all blue)] |
| `NNN_SSHFS_OPTS='sshfs -o reconnect,idmap=user'` | specify SSHFS options |
@ -289,7 +291,7 @@ Press <kbd>?</kbd> in `nnn` to see the list anytime.
^W Random s Size t Time modified
MISC
! ^] Shell L Lock C Execute entry
R ^V Pick plugin xN Run plugin N
R ^V Pick plugin xK Run plugin key K
c SSHFS mount u Unmount
^P Prompt ^N Note = Launcher
```

12
nnn.1
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@ -146,7 +146,15 @@ when dealing with the !, e and p commands respectively. A single combination to
.Bd -literal
export NNN_BMS='d:~/Documents;u:/home/user/Cam Uploads;D:~/Downloads/'
NOTE: Bookmark keys should be single-character to use them in combination with the Leader key.
NOTE: To go to a bookmark, press the leader key followed by the bookmark key.
.Ed
.Pp
\fBNNN_PLUG:\fR directly executable plugins as \fIkey_char:location\fR pairs (max 10) separated by
\fI;\fR:
.Bd -literal
export NNN_PLUG='o:fzy-open;p:mocplay;d:ndiff;m:nmount;t:thumb'
NOTE: To run a plugin directly, press 'x' followed by the plugin key.
.Ed
.Pp
\fBNNN_USE_EDITOR:\fR use VISUAL (else EDITOR, preferably CLI, fallback vi) to handle text
@ -201,6 +209,8 @@ files.
\fBNNN_CP_MV_PROG:\fR show progress of copy, move operations (Linux-only, needs advcpmv).
.Bd -literal
export NNN_CP_MV_PROG=1
NOTE: BSD and macOS users can press '^T' to check the progress.
.Ed
.Sh KNOWN ISSUES
If you are using urxvt you might have to set backspace key to DEC.

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@ -48,13 +48,15 @@ Each script has a _Description_ section which provides more details on what the
#### Usage
Use the _pick plugin_ shortcut to visit the plugin directory and execute a plugin. Repeating the same shortcut cancels the operation and puts you back in the original directory.
There are 2 ways to run plugins:
To run (up to 8) plugins directly with <kbd>xN</kbd>:
1. Use the _pick plugin_ shortcut to visit the plugin directory and execute a plugin. Repeating the same shortcut cancels the operation and puts you back in the original directory.
export NNN_PLUG='fzy-open;mocplay;ndiff;nmount;viuimg;pdfview'
2. To run (up to 10) plugins directly with <kbd>x-key</kbd>:
With this, plugin `fzy-open` can be run with the keybind <kbd>x1</kbd>, `mocplay` can be run with <kbd>x2</kbd> and so on...
export NNN_PLUG='o:fzy-open;p:mocplay;d:ndiff;m:nmount;t:thumb'
With this, plugin `fzy-open` can be run with the keybind <kbd>xo</kbd>, `mocplay` can be run with <kbd>xp</kbd> and so on... The key vs. plugin pairs are shown in the help and config screen.
#### Contributing plugins

140
src/nnn.c
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@ -120,7 +120,7 @@
#define MSGWAIT '$'
#define REGEX_MAX 48
#define BM_MAX 10
#define PLUGIN_MAX 8
#define PLUGIN_MAX 10
#define ENTRY_INCR 64 /* Number of dir 'entry' structures to allocate per shot */
#define NAMEBUF_INCR 0x800 /* 64 dir entries at once, avg. 32 chars per filename = 64*32B = 2KB */
#define DESCRIPTOR_LEN 32
@ -195,14 +195,11 @@ typedef struct entry {
uchar flags; /* Flags specific to the file */
} __attribute__ ((aligned(_ALIGNMENT))) *pEntry;
/* Bookmark */
/* Key-value pairs from env */
typedef struct {
int key;
char *loc;
} bm;
/* Plugins */
static char *plug[PLUGIN_MAX] = {NULL};
char *val;
} kv;
/*
* Settings
@ -299,7 +296,8 @@ static struct entry *dents;
static blkcnt_t ent_blocks;
static blkcnt_t dir_blocks;
static ulong num_files;
static bm bookmark[BM_MAX];
static kv bookmark[BM_MAX];
static kv plug[PLUGIN_MAX];
static size_t g_tmpfplen;
static uchar g_crc;
static uchar BLK_SHIFT = 9;
@ -2113,76 +2111,79 @@ static int xlink(char *suffix, char *path, char *buf, int *presel, int type)
return count;
}
static bool parsebmstr(void)
static bool parsekvpair(kv *kvarr, char **envcpy, const char *cfgstr, uchar maxitems)
{
int i = 0;
char *nextkey;
char *bms = getenv(env_cfg[NNN_BMS]);
char *ptr = getenv(cfgstr);
if (!bms || !*bms)
if (!ptr || !*ptr)
return TRUE;
bmstr = strdup(bms);
bms = bmstr;
nextkey = bms;
*envcpy = strdup(ptr);
ptr = *envcpy;
nextkey = ptr;
while (*bms && i < BM_MAX) {
if (bms == nextkey) {
bookmark[i].key = *bms;
if (*++bms != ':')
while (*ptr && i < maxitems) {
if (ptr == nextkey) {
kvarr[i].key = *ptr;
if (*++ptr != ':')
return FALSE;
if (*++bms == '\0')
if (*++ptr == '\0')
return FALSE;
bookmark[i].loc = bms;
kvarr[i].val = ptr;
++i;
}
if (*bms == ';') {
if (*ptr == ';') {
/* Remove trailing space */
if (i > 0 && *(bms - 1) == '/')
*(bms - 1) = '\0';
if (i > 0 && *(ptr - 1) == '/')
*(ptr - 1) = '\0';
*bms = '\0';
nextkey = bms + 1;
*ptr = '\0';
nextkey = ptr + 1;
}
++bms;
++ptr;
}
if (i < BM_MAX) {
if (*bookmark[i - 1].loc == '\0')
if (i < maxitems) {
if (*kvarr[i - 1].val == '\0')
return FALSE;
bookmark[i].key = '\0';
kvarr[i].key = '\0';
}
return TRUE;
}
/*
* Get the real path to a bookmark
* Get the value corresponding to a key
*
* NULL is returned in case of no match, path resolution failure etc.
* buf would be modified, so check return value before access
*/
static char *get_bm_loc(char *buf, int key)
static char *get_kv_val(kv *kvarr, char *buf, int key, uchar max, bool path)
{
int r = 0;
for (; bookmark[r].key && r < BM_MAX; ++r) {
if (bookmark[r].key == key) {
if (bookmark[r].loc[0] == '~') {
for (; kvarr[r].key && r < max; ++r) {
if (kvarr[r].key == key) {
if (!path)
return kvarr[r].val;
if (kvarr[r].val[0] == '~') {
ssize_t len = strlen(home);
ssize_t loclen = strlen(bookmark[r].loc);
ssize_t loclen = strlen(kvarr[r].val);
if (!buf)
buf = (char *)malloc(len + loclen);
xstrlcpy(buf, home, len + 1);
xstrlcpy(buf + len, bookmark[r].loc + 1, loclen);
xstrlcpy(buf + len, kvarr[r].val + 1, loclen);
return buf;
}
return realpath(bookmark[r].loc, buf);
return realpath(kvarr[r].val, buf);
}
}
@ -2190,32 +2191,6 @@ static char *get_bm_loc(char *buf, int key)
return NULL;
}
static void parseplugins(void)
{
int i = 0;
char *nextplug;
char *plugins = getenv("NNN_PLUG");
if (!plugins || !*plugins)
return;
pluginstr = strdup(plugins);
plugins = pluginstr;
nextplug = plugins;
while (*plugins && i < PLUGIN_MAX) {
if (plugins == nextplug) {
plug[i] = nextplug;
++i;
} else if (*plugins == ';') {
*plugins = '\0';
nextplug = plugins + 1;
}
++plugins;
}
}
static inline void resetdircolor(int flags)
{
if (cfg.dircolor && !(flags & DIR_OR_LINK_TO_DIR)) {
@ -2825,6 +2800,14 @@ static void lock_terminal(void)
spawn(tmp, NULL, NULL, NULL, F_NORMAL);
}
static void printkv(kv *kvarr, int fd, uchar max)
{
uchar i = 0;
for (; i < max && kvarr[i].key; ++i)
dprintf(fd, " %c: %s\n", (char)kvarr[i].key, kvarr[i].val);
}
/*
* The help string tokens (each line) start with a HEX value
* which indicates the number of spaces to print before the
@ -2867,7 +2850,7 @@ static bool show_help(const char *path)
"b^W Random s Size t Time modified\n"
"1MISC\n"
"9! ^] Shell L Lock C Execute entry\n"
"9R ^V Pick plugin xN Run plugin N\n"
"9R ^V Pick plugin xK Run plugin key K\n"
"cc SSHFS mount u Unmount\n"
"b^P Prompt ^N Note = Launcher\n"};
@ -2889,17 +2872,15 @@ static bool show_help(const char *path)
dprintf(fd, "\nVOLUME: %s of ", coolsize(get_fs_info(path, FREE)));
dprintf(fd, "%s free\n\n", coolsize(get_fs_info(path, CAPACITY)));
if (bookmark[0].loc) {
if (bookmark[0].val) {
dprintf(fd, "BOOKMARKS\n");
for (i = 0; i < BM_MAX && bookmark[i].key; ++i)
dprintf(fd, " %c: %s\n", (char)bookmark[i].key, bookmark[i].loc);
printkv(bookmark, fd, BM_MAX);
dprintf(fd, "\n");
}
if (plug[0]) {
if (plug[0].val) {
dprintf(fd, "PLUGIN KEYS\n");
for (i = 0; i < PLUGIN_MAX && plug[i]; ++i)
dprintf(fd, " %d: %s\n", i + 1, plug[i]);
printkv(plug, fd, PLUGIN_MAX);
dprintf(fd, "\n");
}
@ -3801,7 +3782,7 @@ nochange:
goto begin;
}
if (!get_bm_loc(newpath, fd)) {
if (!get_kv_val(bookmark, newpath, fd, BM_MAX, TRUE)) {
printwait(messages[STR_INVBM_KEY], &presel);
goto nochange;
}
@ -4424,11 +4405,12 @@ nochange:
if (sel == SEL_PLUGKEY)
{
r = get_input("") - '0';
if ((r < 1 || r > PLUGIN_MAX) || !plug[r - 1])
r = get_input("");
tmp = get_kv_val(plug, NULL, r, PLUGIN_MAX, FALSE);
if (!tmp)
goto nochange;
mkpath(plugindir, plug[r - 1], newpath);
mkpath(plugindir, tmp, newpath);
if (ndents)
spawn(newpath, dents[cur].name, NULL, path, F_NORMAL);
else
@ -4845,15 +4827,19 @@ int main(int argc, char *argv[])
DPRINTF_S(opener);
/* Parse bookmarks string */
if (!parsebmstr()) {
if (!parsekvpair(bookmark, &bmstr, env_cfg[NNN_BMS], BM_MAX)) {
fprintf(stderr, "%s\n", env_cfg[NNN_BMS]);
return _FAILURE;
}
parseplugins();
/* Parse plugins string */
if (!parsekvpair(plug, &pluginstr, "NNN_PLUG", PLUGIN_MAX)) {
fprintf(stderr, "%s\n", "NNN_PLUG");
return _FAILURE;
}
if (arg) { /* Open a bookmark directly */
if (arg[1] || (initpath = get_bm_loc(NULL, *arg)) == NULL) {
if (arg[1] || (initpath = get_kv_val(bookmark, NULL, *arg, BM_MAX, TRUE)) == NULL) {
fprintf(stderr, "%s\n", messages[STR_INVBM_KEY]);
return _FAILURE;
}