From 6b48dbfcc18364c17d832d12f09ac22f33189304 Mon Sep 17 00:00:00 2001
From: Deven Lahoti <deven.lahoti@gmail.com>
Date: Wed, 4 Nov 2020 09:30:38 -0600
Subject: [PATCH] alsa-mixer: add environment variables for profiles and paths

---
 src/modules/alsa/alsa-mixer.c    | 8 ++++++--
 src/tests/alsa-mixer-path-test.c | 3 ++-
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/src/modules/alsa/alsa-mixer.c b/src/modules/alsa/alsa-mixer.c
index 063179052..885a0e863 100644
--- a/src/modules/alsa/alsa-mixer.c
+++ b/src/modules/alsa/alsa-mixer.c
@@ -2761,12 +2761,13 @@ static int path_verify(pa_alsa_path *p) {
 }
 
 static const char *get_default_paths_dir(void) {
+    char *env = getenv("PA_ALSA_PATHS_DIR");
 #ifdef HAVE_RUNNING_FROM_BUILD_TREE
     if (pa_run_from_build_tree())
         return PA_SRCDIR "/modules/alsa/mixer/paths/";
     else
 #endif
-        return PA_ALSA_PATHS_DIR;
+        return (env ? env : PA_ALSA_PATHS_DIR);
 }
 
 pa_alsa_path* pa_alsa_path_new(const char *paths_dir, const char *fname, pa_alsa_direction_t direction) {
@@ -4748,6 +4749,7 @@ pa_alsa_profile_set* pa_alsa_profile_set_new(const char *fname, const pa_channel
     pa_alsa_profile *p;
     pa_alsa_mapping *m;
     pa_alsa_decibel_fix *db_fix;
+    char *env;
     char *fn;
     int r;
     void *state;
@@ -4795,11 +4797,13 @@ pa_alsa_profile_set* pa_alsa_profile_set_new(const char *fname, const pa_channel
     if (!fname)
         fname = "default.conf";
 
+    env = getenv("PA_ALSA_PROFILE_SETS_DIR");
+
     fn = pa_maybe_prefix_path(fname,
 #ifdef HAVE_RUNNING_FROM_BUILD_TREE
                               pa_run_from_build_tree() ? PA_SRCDIR "/modules/alsa/mixer/profile-sets/" :
 #endif
-                              PA_ALSA_PROFILE_SETS_DIR);
+                              (env ? env : PA_ALSA_PROFILE_SETS_DIR));
 
     r = pa_config_parse(fn, NULL, items, NULL, false, ps);
     pa_xfree(fn);
diff --git a/src/tests/alsa-mixer-path-test.c b/src/tests/alsa-mixer-path-test.c
index 75cf08613..4e9899e4d 100644
--- a/src/tests/alsa-mixer-path-test.c
+++ b/src/tests/alsa-mixer-path-test.c
@@ -19,10 +19,11 @@
 
 /* This function was copied from alsa-mixer.c */
 static const char *get_default_paths_dir(void) {
+    char *env = getenv("PA_ALSA_PATHS_DIR");
     if (pa_run_from_build_tree())
         return PA_SRCDIR "/modules/alsa/mixer/paths/";
     else
-        return PA_ALSA_PATHS_DIR;
+        return (env ? env : PA_ALSA_PATHS_DIR);
 }
 
 static pa_strlist *load_makefile() {