Files
roro9stack/lib/files/src/file_list.h
T
twislaandClaude Opus 5.5 b7aed8e91c F1 steps 2-6: the Storage App, its viewers, and Maintenance moved in (#3)
The Storage App browses the SD card: folders first with sizes and dates,
three sorts, one item at a time with a clipboard (c, x, v), rename, delete
after counting what's inside, new folder, details. A listing holds 256
entries and says when a folder has more.

FileOps does the card's work for the App and the console alike, one
operation at a time on the storage task in turns of about 150 ms, so Logs
and Captures are still written during a long copy. A copy shows progress,
can be cancelled (what it wrote is taken back) and compares sizes after.
The read-only rules are checked there: the firmware's top-level folders,
/gemini/cache, and files being written (a Track, a Capture, an upload,
today's IRC Logs). A listing reads the folder straight from FatFs: through
the Arduino File, 329 entries took over two seconds.

Viewers by type: text read a screen at a time whatever the file's size
(logs open at the end), a hex dump, a Capture's packets as the LoRa Scanner
lists them, a Track's summary, and an Update File checked as an install
would check it, without writing anything. Tab shows any file as hex or text.

Settings > Storage is gone: usage, Storage Clean-up and Erase are the App's
Maintenance, behind a warning. The Storage Warning points there.

The Clock sets the system time whatever its source, so files are dated
correctly with a GNSS Fix alone (Q137).

Console: cp, mv, mkdir, du, cancel; rm takes folders and follows the rules;
ls shows dates; Debug Builds get `sd fill`.

424 host tests. Checked on the device: docs/milestones/F1.md.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EhqxQ49eCju4CzKYNjZzwT
2026-10-06 08:45:43 +02:00

56 lines
2.1 KiB
C++

#pragma once
#include <cstddef>
#include <cstdint>
#include <string>
#include <vector>
namespace roro::files {
enum class FileSort : uint8_t { Name, Date, Size };
// A folder's entries for the Storage App (F1, Q129, Q136): 256 at most, the names packed into
// one buffer, about 10 KB when full. A bigger folder keeps the first 256 by name, whatever order
// the card lists them in, and counts the rest.
class FileList {
public:
static constexpr size_t kMax = 256;
void clear();
void add(const char* name, uint32_t size, uint32_t modified, bool folder);
void sort(FileSort by); // folders first, by name; then files by name, newest or biggest first
size_t count() const { return entries_.size(); }
size_t more() const { return more_; } // entries that didn't fit
// By position after sort().
const char* name(size_t i) const { return names_.data() + entries_[order_[i]].name; }
uint32_t size(size_t i) const { return entries_[order_[i]].size; }
uint32_t modified(size_t i) const { return entries_[order_[i]].modified; } // Unix time, 0 if unknown
bool folder(size_t i) const { return entries_[order_[i]].folder; }
int find(const std::string& name) const; // position, or -1
size_t bytes() const; // memory held
private:
struct Entry {
uint32_t name; // offset into names_
uint32_t size, modified;
bool folder;
};
bool before(const Entry& a, const Entry& b, FileSort by) const;
void compact();
std::vector<Entry> entries_;
std::vector<uint16_t> order_;
std::vector<char> names_;
size_t more_ = 0, wasted_ = 0;
};
// What a row shows on the right (Q129): "folder", or "1.2 KB 2026-10-05". A file dated before
// 2020 was written before the clock was set: "-" (Q137). Local time.
std::string rowDetail(bool folder, uint32_t size, uint32_t modified);
std::string formatStamp(uint32_t modified);
// A name cut to `maxChars` for a row, from the middle: the start and the extension stay readable.
std::string fitName(const std::string& name, size_t maxChars); // "2026-10-05 20:00", or "-"
} // namespace roro::files