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Diffstat (limited to 'toys')
-rw-r--r--toys/ls.c64
1 files changed, 40 insertions, 24 deletions
diff --git a/toys/ls.c b/toys/ls.c
index ff7567eb..b21f7b38 100644
--- a/toys/ls.c
+++ b/toys/ls.c
@@ -136,8 +136,8 @@ static int filter(struct dirtree *new)
{
int flags = toys.optflags;
- // TODO should -1f print here to handle enormous dirs without runing
- // out of mem?
+// TODO should -1f print here to handle enormous dirs without runing
+// out of mem?
if (flags & FLAG_a) return DIRTREE_NORECURSE;
if (!(flags & FLAG_A) && new->name[0]=='.')
@@ -154,12 +154,20 @@ static void listfiles(struct dirtree *indir)
struct dirtree *dt, **sort = 0;
unsigned long dtlen = 0, ul = 0;
unsigned width, flags = toys.optflags, totals[6], len[6];
- int showdirs = 1;
- // Figure out if we should show directories and current directory name
- if (indir == TT.files)
- showdirs = (flags & (FLAG_d|FLAG_R)) || indir->parent;
- if (indir != TT.files || (indir->parent && (flags & FLAG_R))) {
+ // There are two "top of tree" variants:
+ // ls arg1 arg2 arg3
+ // detect: !indir->parent
+ // behavior: don't display dirs, never show dirname/total, option -H
+ // ls onedir (or just "ls" which implies "." as first arg).
+ // detect: indir == TT.files
+ // behavior: only show dirname/total with -R
+
+ // Show current directory name if showing one directory with -d or
+ // not top of tree and -R
+ if (!(indir == TT.files || (flags & FLAG_d))
+ || (indir->parent && (flags & FLAG_R)))
+ {
char *path = dirtree_path(indir, 0);
if (TT.again++) xputc('\n');
@@ -181,25 +189,23 @@ static void listfiles(struct dirtree *indir)
continue;
}
- // This is wrong, should be blocks used not file count.
- if (indir->parent && (flags & FLAG_l)) xprintf("total %lu\n", dtlen);
-
if (!(flags & FLAG_f)) qsort(sort, dtlen, sizeof(void *), (void *)compare);
- // Find largest entry in each field for everything but -1
+ // Find largest entry in each field
memset(totals, 0, 6*sizeof(unsigned));
- if ((flags & (FLAG_1|FLAG_l)) != FLAG_1) {
- for (ul = 0; ul<dtlen; ul++) {
- entrylen(sort[ul], len);
- if (flags & FLAG_l) {
- for (width=0; width<6; width++)
- if (len[width] > totals[width]) totals[width] = len[width];
-//TODO } else if (flags & FLAG_C) {
- } else if (*len > *totals) *totals = *len;
- }
+ for (ul = 0; ul<dtlen; ul++) {
+ entrylen(sort[ul], len);
+ if (flags & FLAG_l) {
+ for (width=0; width<6; width++)
+ if (len[width] > totals[width]) totals[width] = len[width];
+//TODO } else if (flags & FLAG_C) {
+ } else if (*len > *totals) *totals = *len;
}
+ // This is wrong, should be blocks used not file count.
+ if (indir->parent && (flags & FLAG_l)) xprintf("total %lu\n", dtlen);
+
// Loop through again to produce output.
width = 0;
memset(toybuf, ' ', 256);
@@ -208,9 +214,11 @@ static void listfiles(struct dirtree *indir)
mode_t mode = st->st_mode;
char et = endtype(st);
- if (S_ISDIR(mode) && !showdirs) continue;
- entrylen(sort[ul], len);
+ // Skip directories at the top of the tree when -d isn't set
+ if (S_ISDIR(mode) && !indir->parent && !(flags & FLAG_d)) continue;
+ // Do we need to wrap at right edge of screen?
+ entrylen(sort[ul], len);
if (ul) {
if (toys.optflags & FLAG_m) xputc(',');
if ((flags & FLAG_1) || width+1+*len > TT.width) {
@@ -269,10 +277,14 @@ static void listfiles(struct dirtree *indir)
if (width) xputc('\n');
+ // Free directory entries, recursing first if necessary.
+
for (ul = 0; ul<dtlen; free(sort[ul++])) {
// TODO follow symlinks when?
- if (!S_ISDIR(sort[ul]->st.st_mode) || dirtree_isdotdot(sort[ul]))
- continue;
+ if ((flags & FLAG_d) || !S_ISDIR(sort[ul]->st.st_mode)
+ || dirtree_isdotdot(sort[ul])) continue;
+
+ // Recurse into dirs if at top of the tree or given -R
if (!indir->parent || (flags & FLAG_R)) {
int fd = openat(indir->data, sort[ul]->name, 0);
@@ -297,6 +309,10 @@ void ls_main(void)
TT.width = 80;
terminal_size(&TT.width, NULL);
}
+ // 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
+ if (toys.optflags & FLAG_d) toys.optflags &= ~FLAG_R;
// Iterate through command line arguments, collecting directories and files.
// Non-absolute paths are relative to current directory.