crimes
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parent
b57cbba805
commit
d483eb1bcd
GPG key ID:
411F7B30801DD9CA
2 changed files with 74 additions and 38 deletions
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@ -24,6 +24,12 @@ pub fn build(b: *std.Build) void {
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.optimize = optimize,
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});
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exe.linkLibC();
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exe.addIncludePath(.{ .cwd_relative = "/usr/include/glib-2.0" });
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exe.addIncludePath(.{ .cwd_relative = "/usr/lib/glib-2.0/include" });
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exe.addIncludePath(.{ .cwd_relative = "/usr/include/gdk-pixbuf-2.0" });
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exe.linkSystemLibrary("notify");
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// This declares intent for the executable to be installed into the
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// standard location when the user invokes the "install" step (the default
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// step when running `zig build`).
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106
src/main.zig
106
src/main.zig
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@ -1,10 +1,23 @@
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const std = @import("std");
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const c = @cImport({
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@cInclude("libnotify/notify.h");
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});
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pub const std_options = struct {
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pub const log_level = .info;
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};
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const NOTIFICATION_TITLE: [:0]const u8 = "bat-alert";
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const NOTIFICATION_BODY: [:0]const u8 = "battery running low!";
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const ParseMode = enum { none, target, battery };
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pub fn main() !void {
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if (c.notify_init("bat-alert") == c.FALSE) {
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std.log.err("notify_init failed", .{});
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std.process.exit(1);
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}
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var gpa = std.heap.GeneralPurposeAllocator(.{}){};
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defer _ = gpa.deinit();
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const allocator = gpa.allocator();
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@ -15,48 +28,57 @@ pub fn main() !void {
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var target: u8 = 15;
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var battery: []const u8 = "BAT0";
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var parse_mode = ParseMode.none;
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for (args, 0..) |arg, i| {
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if (std.mem.eql(u8, arg, "--help")) {
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const stdout = std.io.getStdOut().writer();
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try stdout.print(
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\\Usage: bat-alert [options]
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\\
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\\Options:
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\\ -t, --target NUM Target battery level (default: 15)
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\\ --battery NAME Battery name (default: BAT0)
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\\
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, .{});
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std.process.exit(0);
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}
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if (std.mem.eql(u8, arg, "--target") or std.mem.eql(u8, arg, "-t")) {
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if (i + 1 == args.len) {
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std.log.err("--target requires an argument", .{});
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std.process.exit(1);
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}
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const parsedTarget = std.fmt.parseInt(u8, args[i + 1], 10) catch |err| {
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std.log.err("invalid target '{s}': {}", .{ args[i + 1], err });
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std.process.exit(1);
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};
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target = parsedTarget;
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}
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if (std.mem.eql(u8, arg, "--battery")) {
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if (i + 1 == args.len) {
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std.log.err("--battery requires an argument", .{});
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std.process.exit(1);
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}
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battery = args[i + 1];
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_ = i;
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switch (parse_mode) {
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ParseMode.none => {
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if (std.mem.eql(u8, arg, "--help")) {
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const stdout = std.io.getStdOut().writer();
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try stdout.print(
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\\Usage: bat-alert [options]
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\\
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\\Options:
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\\ -t, --target NUM Target battery level (default: 15)
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\\ --battery NAME Battery name (default: BAT0)
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\\
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, .{});
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std.process.exit(0);
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}
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if (std.mem.eql(u8, arg, "--target") or std.mem.eql(u8, arg, "-t")) {
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parse_mode = ParseMode.target;
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}
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if (std.mem.eql(u8, arg, "--battery")) {
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parse_mode = ParseMode.battery;
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}
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},
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ParseMode.battery => {
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battery = arg;
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parse_mode = ParseMode.none;
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},
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ParseMode.target => {
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const parsedTarget = std.fmt.parseInt(u8, arg, 10) catch {
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std.log.err("cannot parse target '{s}' as int", .{arg});
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std.process.exit(1);
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};
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target = parsedTarget;
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parse_mode = ParseMode.none;
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},
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}
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}
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if (parse_mode != ParseMode.none) {
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std.log.err("option requires an argument: --{s}", .{@tagName(parse_mode)});
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std.process.exit(1);
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}
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var sent = false;
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const batteryPath = try std.fmt.allocPrint(allocator, "/sys/class/power_supply/{s}/capacity", .{battery});
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while (true) {
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const capacityFile = try std.fs.openFileAbsolute(batteryPath, .{});
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const capacityFile = std.fs.openFileAbsolute(batteryPath, .{}) catch |err| {
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std.log.err("open {s}: {}", .{ batteryPath, err });
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std.process.exit(1);
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};
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var capacityStr = std.ArrayList(u8).init(allocator);
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try capacityFile.reader().streamUntilDelimiter(capacityStr.writer(), '\n', null);
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capacityFile.close();
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@ -69,10 +91,18 @@ pub fn main() !void {
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if (capacity <= target) {
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if (!sent) {
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sent = true;
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_ = try std.process.Child.exec(.{
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.allocator = allocator,
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.argv = &[_][]const u8{ "notify-send", "-t", "5000", "-u", "critical", "bat-alert", "battery running low!" },
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});
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// _ = try std.process.Child.exec(.{
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// .allocator = allocator,
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// .argv = &[_][]const u8{ "notify-send", "-t", "5000", "-u", "critical", NOTIFICATION_TITLE, NOTIFICATION_BODY },
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// });
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const notif = c.notify_notification_new(NOTIFICATION_TITLE, NOTIFICATION_BODY, null);
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var g_err: [*c]c.GError = null;
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const ret = c.notify_notification_show(notif, &g_err);
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if (ret == c.FALSE) {
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std.log.err("failed to send a notification: {s}", .{g_err.*.message});
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}
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std.log.info("[NOTIFY] battery running low!", .{});
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}
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} else {
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