i3status 2.9 without audio

i3status-2.9-no-sound.patch

From 0237a9fb589cd11c5409f55c84e1fb1e4037516f Mon Sep 17 00:00:00 2001
From: Alex Shaindlin <me@ashaindlin.com>
Date: Tue, 26 May 2015 20:25:48 -0400
Subject: [PATCH] Remove everything audio-related

---
 Makefile           |   1 -
 i3status.c         |  22 -------
 src/print_volume.c | 181 -----------------------------------------------------
 3 files changed, 204 deletions(-)
 delete mode 100644 src/print_volume.c

diff --git a/Makefile b/Makefile
index 625b522..45ed1e6 100644
--- a/Makefile
+++ b/Makefile
@@ -27,7 +27,6 @@ ifeq ($(OS),Linux)
 CPPFLAGS+=-DLINUX
 CPPFLAGS+=-D_GNU_SOURCE
 LIBS+=-liw
-LIBS+=-lasound
 endif
 
 ifeq ($(OS),GNU/kFreeBSD)
diff --git a/i3status.c b/i3status.c
index 8749933..4bde369 100644
--- a/i3status.c
+++ b/i3status.c
@@ -394,17 +394,6 @@ int main(int argc, char *argv[]) {
         CFG_CUSTOM_MIN_WIDTH_OPT,
         CFG_END()};
 
-    cfg_opt_t volume_opts[] = {
-        CFG_STR("format", "♪: %volume", CFGF_NONE),
-        CFG_STR("format_muted", "♪: 0%%", CFGF_NONE),
-        CFG_STR("device", "default", CFGF_NONE),
-        CFG_STR("mixer", "Master", CFGF_NONE),
-        CFG_INT("mixer_idx", 0, CFGF_NONE),
-        CFG_CUSTOM_ALIGN_OPT,
-        CFG_CUSTOM_COLOR_OPTS,
-        CFG_CUSTOM_MIN_WIDTH_OPT,
-        CFG_END()};
-
     cfg_opt_t opts[] = {
         CFG_STR_LIST("order", "{}", CFGF_NONE),
         CFG_SEC("general", general_opts, CFGF_NONE),
@@ -415,7 +404,6 @@ int main(int argc, char *argv[]) {
         CFG_SEC("battery", battery_opts, CFGF_TITLE | CFGF_MULTI),
         CFG_SEC("cpu_temperature", temp_opts, CFGF_TITLE | CFGF_MULTI),
         CFG_SEC("disk", disk_opts, CFGF_TITLE | CFGF_MULTI),
-        CFG_SEC("volume", volume_opts, CFGF_TITLE | CFGF_MULTI),
         CFG_SEC("ipv6", ipv6_opts, CFGF_NONE),
         CFG_SEC("time", time_opts, CFGF_NONE),
         CFG_SEC("tztime", tztime_opts, CFGF_TITLE | CFGF_MULTI),
@@ -643,16 +631,6 @@ int main(int argc, char *argv[]) {
                 SEC_CLOSE_MAP;
             }
 
-            CASE_SEC_TITLE("volume") {
-                SEC_OPEN_MAP("volume");
-                print_volume(json_gen, buffer, cfg_getstr(sec, "format"),
-                             cfg_getstr(sec, "format_muted"),
-                             cfg_getstr(sec, "device"),
-                             cfg_getstr(sec, "mixer"),
-                             cfg_getint(sec, "mixer_idx"));
-                SEC_CLOSE_MAP;
-            }
-
             CASE_SEC_TITLE("cpu_temperature") {
                 SEC_OPEN_MAP("cpu_temperature");
                 print_cpu_temperature_info(json_gen, buffer, atoi(title), cfg_getstr(sec, "path"), cfg_getstr(sec, "format"), cfg_getint(sec, "max_threshold"));
diff --git a/src/print_volume.c b/src/print_volume.c
deleted file mode 100644
index ef1c913..0000000
--- a/src/print_volume.c
+++ /dev/null
@@ -1,181 +0,0 @@
-// vim:ts=4:sw=4:expandtab
-#include <time.h>
-#include <string.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <yajl/yajl_gen.h>
-#include <yajl/yajl_version.h>
-
-#ifdef LINUX
-#include <alsa/asoundlib.h>
-#include <alloca.h>
-#endif
-
-#if defined(__FreeBSD__) || defined(__DragonFly__)
-#include <fcntl.h>
-#include <unistd.h>
-#include <sys/soundcard.h>
-#endif
-
-#ifdef __OpenBSD__
-#include <fcntl.h>
-#include <unistd.h>
-#include <soundcard.h>
-#endif
-
-#include "i3status.h"
-#include "queue.h"
-
-void print_volume(yajl_gen json_gen, char *buffer, const char *fmt, const char *fmt_muted, const char *device, const char *mixer, int mixer_idx) {
-    char *outwalk = buffer;
-    int pbval = 1;
-
-    /* Printing volume only works with ALSA at the moment */
-    if (output_format == O_I3BAR) {
-        char *instance;
-        asprintf(&instance, "%s.%s.%d", device, mixer, mixer_idx);
-        INSTANCE(instance);
-        free(instance);
-    }
-#ifdef LINUX
-    int err;
-    snd_mixer_t *m;
-    snd_mixer_selem_id_t *sid;
-    snd_mixer_elem_t *elem;
-    long min, max, val;
-    int avg;
-
-    if ((err = snd_mixer_open(&m, 0)) < 0) {
-        fprintf(stderr, "i3status: ALSA: Cannot open mixer: %s\n", snd_strerror(err));
-        goto out;
-    }
-
-    /* Attach this mixer handle to the given device */
-    if ((err = snd_mixer_attach(m, device)) < 0) {
-        fprintf(stderr, "i3status: ALSA: Cannot attach mixer to device: %s\n", snd_strerror(err));
-        snd_mixer_close(m);
-        goto out;
-    }
-
-    /* Register this mixer */
-    if ((err = snd_mixer_selem_register(m, NULL, NULL)) < 0) {
-        fprintf(stderr, "i3status: ALSA: snd_mixer_selem_register: %s\n", snd_strerror(err));
-        snd_mixer_close(m);
-        goto out;
-    }
-
-    if ((err = snd_mixer_load(m)) < 0) {
-        fprintf(stderr, "i3status: ALSA: snd_mixer_load: %s\n", snd_strerror(err));
-        snd_mixer_close(m);
-        goto out;
-    }
-
-    snd_mixer_selem_id_malloc(&sid);
-    if (sid == NULL) {
-        snd_mixer_close(m);
-        goto out;
-    }
-
-    /* Find the given mixer */
-    snd_mixer_selem_id_set_index(sid, mixer_idx);
-    snd_mixer_selem_id_set_name(sid, mixer);
-    if (!(elem = snd_mixer_find_selem(m, sid))) {
-        fprintf(stderr, "i3status: ALSA: Cannot find mixer %s (index %i)\n",
-                snd_mixer_selem_id_get_name(sid), snd_mixer_selem_id_get_index(sid));
-        snd_mixer_close(m);
-        snd_mixer_selem_id_free(sid);
-        goto out;
-    }
-
-    /* Get the volume range to convert the volume later */
-    snd_mixer_selem_get_playback_volume_range(elem, &min, &max);
-
-    snd_mixer_handle_events(m);
-    snd_mixer_selem_get_playback_volume(elem, 0, &val);
-    if (max != 100) {
-        float avgf = ((float)val / max) * 100;
-        avg = (int)avgf;
-        avg = (avgf - avg < 0.5 ? avg : (avg + 1));
-    } else
-        avg = (int)val;
-
-    /* Check for mute */
-    if (snd_mixer_selem_has_playback_switch(elem)) {
-        if ((err = snd_mixer_selem_get_playback_switch(elem, 0, &pbval)) < 0)
-            fprintf(stderr, "i3status: ALSA: playback_switch: %s\n", snd_strerror(err));
-        if (!pbval) {
-            START_COLOR("color_degraded");
-            fmt = fmt_muted;
-        }
-    }
-
-    snd_mixer_close(m);
-    snd_mixer_selem_id_free(sid);
-
-    const char *walk = fmt;
-    for (; *walk != '\0'; walk++) {
-        if (*walk != '%') {
-            *(outwalk++) = *walk;
-            continue;
-        }
-        if (BEGINS_WITH(walk + 1, "%")) {
-            outwalk += sprintf(outwalk, "%%");
-            walk += strlen("%");
-        }
-        if (BEGINS_WITH(walk + 1, "volume")) {
-            outwalk += sprintf(outwalk, "%d%%", avg);
-            walk += strlen("volume");
-        }
-    }
-#endif
-#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
-    char *mixerpath;
-    char defaultmixer[] = "/dev/mixer";
-    int mixfd, vol, devmask = 0;
-    pbval = 1;
-
-    if (mixer_idx > 0)
-        asprintf(&mixerpath, "/dev/mixer%d", mixer_idx);
-    else
-        mixerpath = defaultmixer;
-
-    if ((mixfd = open(mixerpath, O_RDWR)) < 0)
-        return;
-
-    if (mixer_idx > 0)
-        free(mixerpath);
-
-    if (ioctl(mixfd, SOUND_MIXER_READ_DEVMASK, &devmask) == -1)
-        return;
-    if (ioctl(mixfd, MIXER_READ(0), &vol) == -1)
-        return;
-
-    if (((vol & 0x7f) == 0) && (((vol >> 8) & 0x7f) == 0)) {
-        START_COLOR("color_degraded");
-        pbval = 0;
-    }
-
-    const char *walk = fmt;
-    for (; *walk != '\0'; walk++) {
-        if (*walk != '%') {
-            *(outwalk++) = *walk;
-            continue;
-        }
-        if (BEGINS_WITH(walk + 1, "%")) {
-            outwalk += sprintf(outwalk, "%%");
-            walk += strlen("%");
-        }
-        if (BEGINS_WITH(walk + 1, "volume")) {
-            outwalk += sprintf(outwalk, "%d%%", vol & 0x7f);
-            walk += strlen("volume");
-        }
-    }
-    close(mixfd);
-#endif
-
-out:
-    *outwalk = '\0';
-    if (!pbval)
-        END_COLOR;
-    OUTPUT_FULL_TEXT(buffer);
-}
-- 
2.4.1

i3status-2.9.ebuild.patch

--- /usr/portage/x11-misc/i3status/i3status-2.9.ebuild	2015-03-22 14:25:24.000000000 -0400
+++ /usr/local/portage/x11-misc/i3status/i3status-2.9.ebuild	2015-05-26 20:05:55.969766065 -0400
@@ -13,17 +13,18 @@
 LICENSE="BSD"
 SLOT="0"
 KEYWORDS="~amd64 ~x86"
-IUSE=""
+IUSE="sound"
 
 RDEPEND="dev-libs/confuse
 	>=dev-libs/yajl-2.0.2
-	media-libs/alsa-lib
+	sound? ( media-libs/alsa-lib )
 	net-wireless/wireless-tools"
 DEPEND="${RDEPEND}"
 
 src_prepare() {
 	sed -e "/@echo/d" -e "s:@\$(:\$(:g" -e "/setcap/d" \
 		-e '/CFLAGS+=-g/d' -i Makefile || die
+	use sound || epatch "${FILESDIR}"/"${P}"-no-sound.patch
 }
 
 src_compile() {