Initial commit
This commit is contained in:
commit
a55fc17f31
GPG Key ID:
B715679E3A361BE6
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@ -0,0 +1,46 @@
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# target_compile_features has been introduced in that version
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cmake_minimum_required (VERSION 3.1.0)
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project (sdn CXX)
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set (version 0.1)
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||||||
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if ("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU")
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set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -pedantic")
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endif ()
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||||||
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||||||
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# Since we use a language with slow compilers, let's at least use a fast linker
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execute_process (COMMAND ${CMAKE_CXX_COMPILER} -fuse-ld=gold -Wl,--version
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||||||
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ERROR_QUIET OUTPUT_VARIABLE ld_version)
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||||||
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if ("${ld_version}" MATCHES "GNU gold")
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set (CMAKE_EXE_LINKER_FLAGS "-fuse-ld=gold ${CMAKE_EXE_LINKER_FLAGS}")
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endif ()
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find_package (PkgConfig REQUIRED)
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pkg_check_modules (NCURSESW QUIET ncursesw)
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||||||
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add_executable (${PROJECT_NAME} ${PROJECT_NAME}.cpp)
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target_include_directories (${PROJECT_NAME} PUBLIC ${NCURSESW_INCLUDE_DIRS})
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target_link_libraries (${PROJECT_NAME} PUBLIC ${NCURSESW_LIBRARIES})
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target_compile_features (${PROJECT_NAME} PUBLIC cxx_std_14)
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target_compile_definitions (${PROJECT_NAME} PUBLIC
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-DPROJECT_NAME=\"${PROJECT_NAME}\" -DPROJECT_VERSION=\"${version}\")
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||||||
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include (GNUInstallDirs)
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install (TARGETS ${PROJECT_NAME} DESTINATION ${CMAKE_INSTALL_BINDIR})
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install (FILES LICENSE DESTINATION ${CMAKE_INSTALL_DOCDIR})
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set (CPACK_PACKAGE_DESCRIPTION_SUMMARY "Directory navigator")
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set (CPACK_PACKAGE_VENDOR "Premysl Janouch")
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set (CPACK_PACKAGE_CONTACT "Přemysl Janouch <p.janouch@gmail.com>")
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set (CPACK_RESOURCE_FILE_LICENSE "${PROJECT_SOURCE_DIR}/LICENSE")
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set (CPACK_PACKAGE_VERSION ${version})
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set (CPACK_GENERATOR "TGZ;ZIP")
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set (CPACK_PACKAGE_FILE_NAME
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"${PROJECT_NAME}-${version}-${CMAKE_SYSTEM_NAME}-${CMAKE_SYSTEM_PROCESSOR}")
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||||||
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set (CPACK_PACKAGE_INSTALL_DIRECTORY "${PROJECT_NAME}-${version}")
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set (CPACK_SOURCE_GENERATOR "TGZ;ZIP")
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set (CPACK_SOURCE_IGNORE_FILES "/\\\\.git;/build;/CMakeLists.txt.user")
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set (CPACK_SOURCE_PACKAGE_FILE_NAME "${PROJECT_NAME}-${version}")
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||||||
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||||||
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set (CPACK_SET_DESTDIR TRUE)
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include (CPack)
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@ -0,0 +1,13 @@
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Copyright (c) 2017, Přemysl Janouch <p.janouch@gmail.com>
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||||||
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Permission to use, copy, modify, and/or distribute this software for any
|
||||||
|
purpose with or without fee is hereby granted, provided that the above
|
||||||
|
copyright notice and this permission notice appear in all copies.
|
||||||
|
|
||||||
|
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||||
|
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||||
|
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
|
||||||
|
SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||||
|
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
|
||||||
|
OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
|
||||||
|
CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||||
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@ -0,0 +1,12 @@
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SHELL = /bin/sh
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||||||
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CXXFLAGS = -g -std=c++14 -Wall -Wextra -pedantic -static-libstdc++
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||||||
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|
||||||
|
all: sdn
|
||||||
|
%: %.cpp CMakeLists.txt
|
||||||
|
$(CXX) $(CXXFLAGS) $< -o $@ `pkg-config --libs --cflags ncursesw` \
|
||||||
|
`sed -ne 's/^project (\([^ )]*\).*/-DPROJECT_NAME="\1"/p' \
|
||||||
|
-e 's/^set (version \([^ )]*\).*/-DPROJECT_VERSION="\1"/p' CMakeLists.txt`
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||||||
|
clean:
|
||||||
|
rm -f sdn
|
||||||
|
|
||||||
|
.PHONY: all clean
|
||||||
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@ -0,0 +1,75 @@
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||||||
|
sdn
|
||||||
|
===
|
||||||
|
:compact-option:
|
||||||
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|
||||||
|
'sdn' is a simple directory navigator that you can invoke while editing shell
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||||||
|
commands. It enables you to:
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||||||
|
|
||||||
|
* take a quick peek at directory contents without running `ls`
|
||||||
|
* browse the filesystem without all the mess that Midnight Commander does:
|
||||||
|
there's no need to create a subshell in a new pty. The current command line
|
||||||
|
can be simply forwarded if it is to be edited. What's more, it will always
|
||||||
|
be obvious whether the navigator is running.
|
||||||
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|
||||||
|
Development has just started and the only supported platform is Linux.
|
||||||
|
I wanted to try a different, simpler approach here.
|
||||||
|
|
||||||
|
Building
|
||||||
|
--------
|
||||||
|
Build dependencies: CMake and/or make, a C++14 compiler, pkg-config +
|
||||||
|
Runtime dependencies: ncursesw
|
||||||
|
|
||||||
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$ git clone https://github.com/pjanouch/sdn.git
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|
$ mkdir sdn/build
|
||||||
|
$ cd sdn/build
|
||||||
|
$ cmake .. -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=Debug
|
||||||
|
$ make
|
||||||
|
|
||||||
|
To install the application, you can do either the usual:
|
||||||
|
|
||||||
|
# make install
|
||||||
|
|
||||||
|
Or you can try telling CMake to make a package for you. For Debian it is:
|
||||||
|
|
||||||
|
$ cpack -G DEB
|
||||||
|
# dpkg -i sdn-*.deb
|
||||||
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|
||||||
|
There is also a Makefile you can use to quickly build a binary to be copied
|
||||||
|
into the PATH of any machine you want to have 'sdn' on.
|
||||||
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|
||||||
|
zsh
|
||||||
|
---
|
||||||
|
To start using this navigator, put the following in your .zshrc:
|
||||||
|
....
|
||||||
|
navigate () {
|
||||||
|
# ... possibly zle-line-init
|
||||||
|
eval `navigator`
|
||||||
|
[ -z "$cd" ] || cd "$cd"
|
||||||
|
[ -z "$insert" ] || LBUFFER="$LBUFFER$insert "
|
||||||
|
zle reset-prompt
|
||||||
|
# ... possibly zle-line-finish
|
||||||
|
}
|
||||||
|
zle -N navigate
|
||||||
|
bindkey '\eo' navigate
|
||||||
|
....
|
||||||
|
|
||||||
|
As far as I'm aware, bash cannot be used for this, as there is no command to
|
||||||
|
reset the prompt from within a `bind -x` handler.
|
||||||
|
|
||||||
|
Contributing and Support
|
||||||
|
------------------------
|
||||||
|
Use this project's GitHub to report any bugs, request features, or submit pull
|
||||||
|
requests. If you want to discuss this project, or maybe just hang out with
|
||||||
|
the developer, feel free to join me at irc://irc.janouch.name, channel #dev.
|
||||||
|
|
||||||
|
Bitcoin donations: 12r5uEWEgcHC46xd64tt3hHt9EUvYYDHe9
|
||||||
|
|
||||||
|
License
|
||||||
|
-------
|
||||||
|
'sdn' is written by Přemysl Janouch <p.janouch@gmail.com>.
|
||||||
|
|
||||||
|
You may use the software under the terms of the ISC license, the text of which
|
||||||
|
is included within the package, or, at your option, you may relicense the work
|
||||||
|
under the MIT or the Modified BSD License, as listed at the following site:
|
||||||
|
|
||||||
|
http://www.gnu.org/licenses/license-list.html
|
||||||
|
|
@ -0,0 +1,446 @@
|
||||||
|
//
|
||||||
|
// sdn: simple directory navigator
|
||||||
|
//
|
||||||
|
// Copyright (c) 2017, Přemysl Janouch <p.janouch@gmail.com>
|
||||||
|
//
|
||||||
|
// Permission to use, copy, modify, and/or distribute this software for any
|
||||||
|
// purpose with or without fee is hereby granted, provided that the above
|
||||||
|
// copyright notice and this permission notice appear in all copies.
|
||||||
|
//
|
||||||
|
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||||
|
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||||
|
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
|
||||||
|
// SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||||
|
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
|
||||||
|
// OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
|
||||||
|
// CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||||
|
//
|
||||||
|
|
||||||
|
#include <string>
|
||||||
|
#include <vector>
|
||||||
|
#include <locale>
|
||||||
|
#include <iostream>
|
||||||
|
#include <algorithm>
|
||||||
|
#include <cwchar>
|
||||||
|
#include <climits>
|
||||||
|
|
||||||
|
#include <ncurses.h>
|
||||||
|
#include <unistd.h>
|
||||||
|
#include <dirent.h>
|
||||||
|
#include <sys/stat.h>
|
||||||
|
#include <sys/inotify.h>
|
||||||
|
#include <fcntl.h>
|
||||||
|
|
||||||
|
// Unicode is complex enough already and we might make assumptions
|
||||||
|
#ifndef __STDC_ISO_10646__
|
||||||
|
#error Unicode required for wchar_t
|
||||||
|
#endif
|
||||||
|
|
||||||
|
using namespace std;
|
||||||
|
|
||||||
|
// For some reason handling of encoding in C and C++ is extremely annoying
|
||||||
|
// and C++17 ironically obsoletes C++11 additions that made it less painful
|
||||||
|
static wstring
|
||||||
|
to_wide (const string &multi) {
|
||||||
|
wstring wide; wchar_t w; mbstate_t mb {};
|
||||||
|
size_t n = 0, len = multi.length () + 1;
|
||||||
|
while (auto res = mbrtowc (&w, multi.c_str () + n, len - n, &mb)) {
|
||||||
|
if (res == size_t (-1) || res == size_t (-2))
|
||||||
|
return L"/invalid encoding/";
|
||||||
|
|
||||||
|
n += res;
|
||||||
|
wide += w;
|
||||||
|
}
|
||||||
|
return wide;
|
||||||
|
}
|
||||||
|
|
||||||
|
static string
|
||||||
|
to_mb (const wstring &wide) {
|
||||||
|
string mb; char buf[MB_LEN_MAX + 1]; mbstate_t mbs {};
|
||||||
|
for (size_t n = 0; n <= wide.length (); n++) {
|
||||||
|
auto res = wcrtomb (buf, wide.c_str ()[n], &mbs);
|
||||||
|
if (res == size_t (-1))
|
||||||
|
throw invalid_argument ("invalid encoding");
|
||||||
|
mb.append (buf, res);
|
||||||
|
}
|
||||||
|
// There's one extra NUL character added by wcrtomb()
|
||||||
|
mb.erase (mb.length () - 1);
|
||||||
|
return mb;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int
|
||||||
|
print (const wstring &wide, int limit) {
|
||||||
|
int total_width = 0;
|
||||||
|
for (wchar_t w : wide) {
|
||||||
|
// TODO: controls as ^X, show in inverse
|
||||||
|
if (!isprint (w))
|
||||||
|
w = L'?';
|
||||||
|
|
||||||
|
int width = wcwidth (w);
|
||||||
|
if (total_width + width > limit)
|
||||||
|
break;
|
||||||
|
|
||||||
|
cchar_t c = {};
|
||||||
|
c.chars[0] = w;
|
||||||
|
add_wch (&c);
|
||||||
|
total_width += width;
|
||||||
|
}
|
||||||
|
return total_width;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int
|
||||||
|
prefix (const wstring &in, const wstring &of) {
|
||||||
|
int score = 0;
|
||||||
|
for (size_t i = 0; i < of.size () && in.size () >= i && in[i] == of[i]; i++)
|
||||||
|
score++;
|
||||||
|
return score;
|
||||||
|
}
|
||||||
|
|
||||||
|
static string
|
||||||
|
shell_escape (const string &v) {
|
||||||
|
string result;
|
||||||
|
for (auto c : v)
|
||||||
|
if (c == '\'')
|
||||||
|
result += "'\\''";
|
||||||
|
else
|
||||||
|
result += c;
|
||||||
|
return "'" + result + "'";
|
||||||
|
}
|
||||||
|
|
||||||
|
// --- Application -------------------------------------------------------------
|
||||||
|
|
||||||
|
#define CTRL 31 &
|
||||||
|
|
||||||
|
struct entry {
|
||||||
|
string filename;
|
||||||
|
struct stat info;
|
||||||
|
bool operator< (const entry &other) {
|
||||||
|
auto a = S_ISDIR (info.st_mode);
|
||||||
|
auto b = S_ISDIR (other.info.st_mode);
|
||||||
|
return (a && !b) || (a == b && filename < other.filename);
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
// Between std and ncurses, make at least the globals stand out
|
||||||
|
static struct {
|
||||||
|
string cwd;
|
||||||
|
vector<entry> entries;
|
||||||
|
int offset, cursor;
|
||||||
|
string chosen;
|
||||||
|
bool chosen_full;
|
||||||
|
int inotify_fd, inotify_wd = -1;
|
||||||
|
bool out_of_date;
|
||||||
|
|
||||||
|
wchar_t editor;
|
||||||
|
wstring editor_line;
|
||||||
|
} g;
|
||||||
|
|
||||||
|
static inline int visible_lines () { return LINES - 2; }
|
||||||
|
|
||||||
|
static void
|
||||||
|
update () {
|
||||||
|
erase ();
|
||||||
|
|
||||||
|
attrset (A_BOLD);
|
||||||
|
mvprintw (0, 0, "%s", g.cwd.c_str ());
|
||||||
|
if (g.out_of_date)
|
||||||
|
addstr (" [+]");
|
||||||
|
|
||||||
|
for (int i = 0; i < visible_lines (); i++) {
|
||||||
|
int index = g.offset + i;
|
||||||
|
if (index >= int (g.entries.size ()))
|
||||||
|
break;
|
||||||
|
|
||||||
|
attrset (0);
|
||||||
|
if (index == g.cursor)
|
||||||
|
attron (A_REVERSE);
|
||||||
|
|
||||||
|
move (2 + i, 0);
|
||||||
|
auto &entry = g.entries[index];
|
||||||
|
|
||||||
|
// TODO display more information from "info"
|
||||||
|
char modes[] = "- ";
|
||||||
|
const auto &stat = entry.info;
|
||||||
|
if (S_ISDIR (stat.st_mode)) modes[0] = 'd';
|
||||||
|
if (S_ISBLK (stat.st_mode)) modes[0] = 'b';
|
||||||
|
if (S_ISCHR (stat.st_mode)) modes[0] = 'c';
|
||||||
|
if (S_ISLNK (stat.st_mode)) modes[0] = 'l';
|
||||||
|
if (S_ISFIFO (stat.st_mode)) modes[0] = 'p';
|
||||||
|
if (S_ISSOCK (stat.st_mode)) modes[0] = 's';
|
||||||
|
addstr (modes);
|
||||||
|
|
||||||
|
// TODO show symbolic link target
|
||||||
|
auto width = COLS - 2;
|
||||||
|
hline (' ', width - print (to_wide (entry.filename), width));
|
||||||
|
}
|
||||||
|
|
||||||
|
attrset (0);
|
||||||
|
if (g.editor) {
|
||||||
|
move (1, 0);
|
||||||
|
wchar_t prefix[] = { g.editor, L' ', L'\0' };
|
||||||
|
addwstr (prefix);
|
||||||
|
move (1, print (g.editor_line, COLS - 3) + 2);
|
||||||
|
curs_set (1);
|
||||||
|
} else
|
||||||
|
curs_set (0);
|
||||||
|
|
||||||
|
refresh ();
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
reload () {
|
||||||
|
char buf[4096];
|
||||||
|
g.cwd = getcwd (buf, sizeof buf);
|
||||||
|
|
||||||
|
auto dir = opendir (".");
|
||||||
|
g.entries.clear ();
|
||||||
|
while (auto f = readdir (dir)) {
|
||||||
|
// Two dots are for navigation but this ain't as useful
|
||||||
|
if (f->d_name == string ("."))
|
||||||
|
continue;
|
||||||
|
|
||||||
|
struct stat sb = {};
|
||||||
|
lstat (f->d_name, &sb);
|
||||||
|
g.entries.push_back ({ f->d_name, sb });
|
||||||
|
}
|
||||||
|
closedir (dir);
|
||||||
|
sort (begin (g.entries), end (g.entries));
|
||||||
|
g.out_of_date = false;
|
||||||
|
|
||||||
|
g.cursor = min (g.cursor, int (g.entries.size ()) - 1);
|
||||||
|
g.offset = min (g.offset, int (g.entries.size ()) - 1);
|
||||||
|
update ();
|
||||||
|
|
||||||
|
if (g.inotify_wd != -1)
|
||||||
|
inotify_rm_watch (g.inotify_fd, g.inotify_wd);
|
||||||
|
|
||||||
|
g.inotify_wd = inotify_add_watch (g.inotify_fd, buf,
|
||||||
|
IN_ALL_EVENTS | IN_ONLYDIR);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
search (const wstring &needle) {
|
||||||
|
int best = g.cursor, best_n = 0;
|
||||||
|
for (int i = 0; i < int (g.entries.size ()); i++) {
|
||||||
|
auto o = (i + g.cursor) % g.entries.size ();
|
||||||
|
int n = prefix (to_wide (g.entries[o].filename), needle);
|
||||||
|
if (n > best_n) {
|
||||||
|
best = o;
|
||||||
|
best_n = n;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
g.cursor = best;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
handle_editor (wint_t c, bool is_char) {
|
||||||
|
if (c == 27 || c == (CTRL L'g')) {
|
||||||
|
g.editor_line.clear ();
|
||||||
|
g.editor = 0;
|
||||||
|
} else if (c == L'\r' || (!is_char && c == KEY_ENTER)) {
|
||||||
|
if (g.editor == L'e') {
|
||||||
|
auto mb = to_mb (g.editor_line);
|
||||||
|
rename (g.entries[g.cursor].filename.c_str (), mb.c_str ());
|
||||||
|
reload ();
|
||||||
|
}
|
||||||
|
g.editor_line.clear ();
|
||||||
|
g.editor = 0;
|
||||||
|
} else if (is_char) {
|
||||||
|
g.editor_line += c;
|
||||||
|
if (g.editor == L'/'
|
||||||
|
|| g.editor == L's')
|
||||||
|
search (g.editor_line);
|
||||||
|
} else if (c == KEY_BACKSPACE) {
|
||||||
|
if (!g.editor_line.empty ())
|
||||||
|
g.editor_line.erase (g.editor_line.length () - 1);
|
||||||
|
} else
|
||||||
|
beep ();
|
||||||
|
}
|
||||||
|
|
||||||
|
static bool
|
||||||
|
handle (wint_t c, bool is_char) {
|
||||||
|
// If an editor is active, let it handle the key instead and eat it
|
||||||
|
if (g.editor) {
|
||||||
|
handle_editor (c, is_char);
|
||||||
|
c = WEOF;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Translate the Alt key into a bit outside the range of Unicode
|
||||||
|
enum { ALT = 1 << 24 };
|
||||||
|
if (c == 27) {
|
||||||
|
if (get_wch (&c) == ERR) {
|
||||||
|
beep ();
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
c |= ALT;
|
||||||
|
}
|
||||||
|
|
||||||
|
const auto ¤t = g.entries[g.cursor];
|
||||||
|
switch (c) {
|
||||||
|
case ALT | L'\r':
|
||||||
|
case ALT | KEY_ENTER:
|
||||||
|
g.chosen_full = true;
|
||||||
|
g.chosen = current.filename;
|
||||||
|
return false;
|
||||||
|
case L'\r':
|
||||||
|
case KEY_ENTER:
|
||||||
|
{
|
||||||
|
bool is_dir = S_ISDIR (current.info.st_mode) != 0;
|
||||||
|
// Dive into directories and accessible symlinks to them
|
||||||
|
if (S_ISLNK (current.info.st_mode)) {
|
||||||
|
char buf[PATH_MAX];
|
||||||
|
struct stat sb = {};
|
||||||
|
auto len = readlink (current.filename.c_str (), buf, sizeof buf);
|
||||||
|
is_dir = len > 0 && size_t (len) < sizeof buf
|
||||||
|
&& !stat (current.filename.c_str (), &sb)
|
||||||
|
&& S_ISDIR (sb.st_mode) != 0;
|
||||||
|
}
|
||||||
|
if (!is_dir) {
|
||||||
|
g.chosen = current.filename;
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
if (!chdir (current.filename.c_str ())) {
|
||||||
|
g.cursor = 0;
|
||||||
|
reload ();
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
// M-o ought to be the same shortcut the navigator is launched with
|
||||||
|
case ALT | L'o':
|
||||||
|
case L'q':
|
||||||
|
return false;
|
||||||
|
|
||||||
|
case L'k': case CTRL L'p': case KEY_UP:
|
||||||
|
g.cursor--;
|
||||||
|
break;
|
||||||
|
case L'j': case CTRL L'n': case KEY_DOWN:
|
||||||
|
g.cursor++;
|
||||||
|
break;
|
||||||
|
case L'g': case ALT | L'<': case KEY_HOME:
|
||||||
|
g.cursor = 0;
|
||||||
|
break;
|
||||||
|
case L'G': case ALT | L'>': case KEY_END:
|
||||||
|
g.cursor = int (g.entries.size ()) - 1;
|
||||||
|
break;
|
||||||
|
|
||||||
|
case KEY_PPAGE: g.cursor -= LINES; break;
|
||||||
|
case KEY_NPAGE: g.cursor += LINES; break;
|
||||||
|
|
||||||
|
case CTRL L'e': g.offset++; break;
|
||||||
|
case CTRL L'y': g.offset--; break;
|
||||||
|
|
||||||
|
case ALT | L'e':
|
||||||
|
g.editor_line = to_wide (current.filename);
|
||||||
|
// Fall-through
|
||||||
|
case L'e':
|
||||||
|
g.editor = c & ~ALT;
|
||||||
|
break;
|
||||||
|
case L'/':
|
||||||
|
case L's':
|
||||||
|
g.editor = c;
|
||||||
|
break;
|
||||||
|
|
||||||
|
case CTRL L'L':
|
||||||
|
clear ();
|
||||||
|
break;
|
||||||
|
case L'r':
|
||||||
|
reload ();
|
||||||
|
break;
|
||||||
|
case KEY_RESIZE:
|
||||||
|
case WEOF:
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
beep ();
|
||||||
|
}
|
||||||
|
g.cursor = max (g.cursor, 0);
|
||||||
|
g.cursor = min (g.cursor, int (g.entries.size ()) - 1);
|
||||||
|
|
||||||
|
// Make sure cursor is visible
|
||||||
|
g.offset = max (g.offset, 0);
|
||||||
|
g.offset = min (g.offset, int (g.entries.size ()) - 1);
|
||||||
|
|
||||||
|
if (g.offset > g.cursor)
|
||||||
|
g.offset = g.cursor;
|
||||||
|
if (g.cursor - g.offset >= visible_lines ())
|
||||||
|
g.offset = g.cursor - visible_lines () + 1;
|
||||||
|
|
||||||
|
update ();
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
inotify_check () {
|
||||||
|
// Only provide simple indication that contents might have changed
|
||||||
|
char buf[4096]; ssize_t len;
|
||||||
|
bool changed = false;
|
||||||
|
while ((len = read (g.inotify_fd, buf, sizeof buf)) > 0) {
|
||||||
|
const inotify_event *e;
|
||||||
|
for (char *ptr = buf; ptr < buf + len; ptr += sizeof *e + e->len) {
|
||||||
|
e = (const inotify_event *) buf;
|
||||||
|
if (e->wd == g.inotify_wd)
|
||||||
|
changed = true;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (changed)
|
||||||
|
update ();
|
||||||
|
}
|
||||||
|
|
||||||
|
int
|
||||||
|
main (int argc, char *argv[]) {
|
||||||
|
(void) argc;
|
||||||
|
(void) argv;
|
||||||
|
|
||||||
|
// That bitch zle closes stdin before exec without redirection
|
||||||
|
(void) close (STDIN_FILENO);
|
||||||
|
if (open ("/dev/tty", O_RDWR)) {
|
||||||
|
cerr << "cannot open tty" << endl;
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Save the original stdout and force ncurses to use the terminal directly
|
||||||
|
auto output_fd = dup (STDOUT_FILENO);
|
||||||
|
dup2 (STDIN_FILENO, STDOUT_FILENO);
|
||||||
|
|
||||||
|
if ((g.inotify_fd = inotify_init1 (IN_NONBLOCK)) < 0) {
|
||||||
|
cerr << "cannot initialize inotify" << endl;
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
locale::global (locale (""));
|
||||||
|
if (!initscr () || cbreak () == ERR || noecho () == ERR || nonl () == ERR
|
||||||
|
|| halfdelay (1) == ERR || keypad (stdscr, TRUE) == ERR) {
|
||||||
|
cerr << "cannot initialize screen" << endl;
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
reload ();
|
||||||
|
auto start_dir = g.cwd;
|
||||||
|
|
||||||
|
wint_t c;
|
||||||
|
while (1) {
|
||||||
|
inotify_check ();
|
||||||
|
int res = get_wch (&c);
|
||||||
|
if (res != ERR && !handle (c, res == OK))
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
endwin ();
|
||||||
|
|
||||||
|
// Presumably it is going to end up as an argument, so quote it
|
||||||
|
if (!g.chosen.empty ())
|
||||||
|
g.chosen = shell_escape (g.chosen);
|
||||||
|
|
||||||
|
// We can't portably create a standard stream from an FD, so modify the FD
|
||||||
|
dup2 (output_fd, STDOUT_FILENO);
|
||||||
|
|
||||||
|
if (g.chosen_full) {
|
||||||
|
auto full_path = g.cwd + "/" + g.chosen;
|
||||||
|
cout << "local insert=" << shell_escape (full_path) << endl;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
if (g.cwd != start_dir)
|
||||||
|
cout << "local cd=" << shell_escape (g.cwd) << endl;
|
||||||
|
if (!g.chosen.empty ())
|
||||||
|
cout << "local insert=" << shell_escape (g.chosen) << endl;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue