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-rw-r--r--toys/posix/ls.c63
1 files changed, 52 insertions, 11 deletions
diff --git a/toys/posix/ls.c b/toys/posix/ls.c
index 07ddcade..8755bb46 100644
--- a/toys/posix/ls.c
+++ b/toys/posix/ls.c
@@ -5,7 +5,7 @@
*
* See http://opengroup.org/onlinepubs/9699919799/utilities/ls.html
-USE_LS(NEWTOY(ls, "goACFHLRSacdfiklmnpqrstux1[-1Cglmnox][-cu][-ftS][-HL]", TOYFLAG_BIN))
+USE_LS(NEWTOY(ls, USE_LS_COLOR("(color)")"goACFHLRSacdfiklmnpqrstux1[-1Cglmnox][-cu][-ftS][-HL]", TOYFLAG_BIN))
config LS
bool "ls"
@@ -31,6 +31,15 @@ config LS
sorting (default is alphabetical):
-f unsorted -r reverse -t timestamp -S size
+
+config LS_COLOR
+ bool "ls --color"
+ default y
+ help
+ usage: ls --color
+
+ --color device=yellow symlink=turquoise/red dir=blue socket=purple
+ files: exe=green suid=red suidfile=redback stickydir=greenback
*/
#define FOR_ls
@@ -193,6 +202,20 @@ static unsigned long next_column(unsigned long ul, unsigned long dtlen,
return (*xpos*height) + widecols + (ul/(columns-1));
}
+int color_from_mode(mode_t mode)
+{
+ int color = 0;
+
+ if (S_ISDIR(mode)) color = 256+34;
+ else if (S_ISLNK(mode)) color = 256+36;
+ else if (S_ISBLK(mode) || S_ISCHR(mode)) color = 256+33;
+ else if (S_ISREG(mode) && (mode&0111)) color = 256+32;
+ else if (S_ISFIFO(mode)) color = 33;
+ else if (S_ISSOCK(mode)) color = 256+35;
+
+ return color;
+}
+
// Display a list of dirtree entries, according to current format
// Output types -1, -l, -C, or stream
@@ -290,7 +313,7 @@ static void listfiles(int dirfd, struct dirtree *indir)
memset(toybuf, ' ', 256);
width = 0;
for (ul = 0; ul<dtlen; ul++) {
- unsigned curcol;
+ unsigned curcol, color = 0;
unsigned long next = next_column(ul, dtlen, columns, &curcol);
struct stat *st = &(sort[next]->st);
mode_t mode = st->st_mode;
@@ -349,12 +372,31 @@ static void listfiles(int dirfd, struct dirtree *indir)
(int64_t)st->st_size, thyme);
}
+ if ((flags & FLAG_color) && TT.screen_width) {
+ color = color_from_mode(st->st_mode);
+ if (color) printf("\033[%d;%dm", color>>8, color&255);
+ }
+
if (flags & FLAG_q) {
char *p;
for (p=sort[next]->name; *p; p++) xputc(isprint(*p) ? *p : '?');
} else xprintf("%s", sort[next]->name);
- if ((flags & (FLAG_l|FLAG_o|FLAG_n|FLAG_g)) && S_ISLNK(mode))
- xprintf(" -> %s", sort[next]->symlink);
+ if (color) xprintf("\033[0m");
+
+ if ((flags & (FLAG_l|FLAG_o|FLAG_n|FLAG_g)) && S_ISLNK(mode)) {
+ printf(" -> ");
+ if ((flags & FLAG_color) && TT.screen_width) {
+ struct stat st2;
+
+ if (fstatat(dirfd, sort[next]->symlink, &st2, 0)) color = 256+31;
+ else color = color_from_mode(st2.st_mode);
+
+ if (color) printf("\033[%d;%dm", color>>8, color&255);
+ }
+
+ printf("%s", sort[next]->symlink);
+ if (color) printf("\033[0m");
+ }
if (et) xputc(et);
@@ -378,7 +420,7 @@ static void listfiles(int dirfd, struct dirtree *indir)
listfiles(openat(dirfd, sort[ul]->name, 0), sort[ul]);
}
free(sort);
- if (dirfd != AT_FDCWD) close(indir->data);
+ if (dirfd != AT_FDCWD) close(dirfd);
}
void ls_main(void)
@@ -386,15 +428,14 @@ void ls_main(void)
char **s, *noargs[] = {".", 0};
struct dirtree *dt;
+ TT.screen_width = 80;
+ terminal_size(&TT.screen_width, NULL);
+ if (TT.screen_width<2) TT.screen_width = 2;
+
// Do we have an implied -1
if (!isatty(1) || (toys.optflags&(FLAG_l|FLAG_o|FLAG_n|FLAG_g)))
toys.optflags |= FLAG_1;
- else {
- TT.screen_width = 80;
- terminal_size(&TT.screen_width, NULL);
- if (TT.screen_width<2) TT.screen_width = 2;
- if (!(toys.optflags&(FLAG_1|FLAG_x|FLAG_m))) toys.optflags |= FLAG_C;
- }
+ else if (!(toys.optflags&(FLAG_1|FLAG_x|FLAG_m))) toys.optflags |= FLAG_C;
// The optflags parsing infrastructure should really do this for us,
// but currently it has "switch off when this is set", so "-dR" and "-Rd"
// behave differently