diff options
Diffstat (limited to 'sdn.cpp')
| -rw-r--r-- | sdn.cpp | 44 |
1 files changed, 26 insertions, 18 deletions
@@ -1004,7 +1004,19 @@ fun is_ancestor_dir (const string &ancestor, const string &of) -> bool { return of[ancestor.length ()] == '/' || (ancestor == "/" && ancestor != of); } -fun pop_levels () { +/// If `path` is equal to the `current` directory, or lies underneath it, +/// return it as a relative path +fun relativize (string current, const string &path) -> string { + if (current == path) + return "."; + if (current.back () != '/') + current += '/'; + if (!strncmp (current.c_str (), path.c_str (), current.length ())) + return path.substr (current.length ()); + return path; +} + +fun pop_levels (const string& old_cwd) { string anchor; auto i = g.levels.rbegin (); while (i != g.levels.rend () && !is_ancestor_dir (i->path, g.cwd)) { if (i->path == g.cwd) { @@ -1015,6 +1027,13 @@ fun pop_levels () { i++; g.levels.pop_back (); } + + // Don't pick up bullshit from foreign history entries, especially for / + if (is_ancestor_dir (g.cwd, old_cwd)) { + auto subpath = relativize (g.cwd, old_cwd); + anchor = subpath.substr (0, subpath.find ('/')); + } + fix_cursor_and_offset (); if (!anchor.empty () && g.entries[g.cursor].filename != anchor) search (to_wide (anchor)); @@ -1047,18 +1066,6 @@ fun absolutize (const string &abs_base, const string &path) -> string { return abs_base + "/" + path; } -/// If `path` is equal to the `current` directory, or lies underneath it, -/// return it as a relative path -fun relativize (string current, const string &path) -> string { - if (current == path) - return "."; - if (current.back () != '/') - current += '/'; - if (!strncmp (current.c_str (), path.c_str (), current.length ())) - return path.substr (current.length ()); - return path; -} - // Roughly follows the POSIX description of `cd -L` because of symlinks. // HOME and CDPATH handling is ommitted. fun change_dir (const string &path) { @@ -1105,11 +1112,12 @@ fun change_dir (const string &path) { bool same_path = last.path == g.cwd; reload (same_path); - if (is_ancestor_dir (last.path, g.cwd)) { - g.levels.push_back (last); + if (!same_path) { g.offset = g.cursor = 0; - } else if (!same_path) { - pop_levels (); + if (is_ancestor_dir (last.path, g.cwd)) + g.levels.push_back (last); + else + pop_levels (last.path); } } @@ -1653,7 +1661,7 @@ int main (int argc, char *argv[]) { load_colors (); g.start_dir = g.cwd = initial_cwd (); reload (false); - pop_levels (); + pop_levels (g.cwd); update (); // Invoking keypad() earlier would make ncurses flush its output buffer, |