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-rw-r--r--src/environment-d-generator/environment-d-generator.c99
1 files changed, 99 insertions, 0 deletions
diff --git a/src/environment-d-generator/environment-d-generator.c b/src/environment-d-generator/environment-d-generator.c
new file mode 100644
index 0000000..1c51cf6
--- /dev/null
+++ b/src/environment-d-generator/environment-d-generator.c
@@ -0,0 +1,99 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include "sd-path.h"
+
+#include "conf-files.h"
+#include "def.h"
+#include "env-file.h"
+#include "escape.h"
+#include "log.h"
+#include "path-lookup.h"
+#include "strv.h"
+
+static int environment_dirs(char ***ret) {
+ _cleanup_strv_free_ char **dirs = NULL;
+ _cleanup_free_ char *c = NULL;
+ int r;
+
+ dirs = strv_new(CONF_PATHS_USR("environment.d"), NULL);
+ if (!dirs)
+ return -ENOMEM;
+
+ /* ~/.config/systemd/environment.d */
+ r = sd_path_lookup(SD_PATH_USER_CONFIGURATION, "environment.d", &c);
+ if (r < 0)
+ return r;
+
+ r = strv_extend_front(&dirs, c);
+ if (r < 0)
+ return r;
+
+ if (DEBUG_LOGGING) {
+ _cleanup_free_ char *t;
+
+ t = strv_join(dirs, "\n\t");
+ log_debug("Looking for environment.d files in (higher priority first):\n\t%s", strna(t));
+ }
+
+ *ret = TAKE_PTR(dirs);
+ return 0;
+}
+
+static int load_and_print(void) {
+ _cleanup_strv_free_ char **dirs = NULL, **files = NULL, **env = NULL;
+ char **i;
+ int r;
+
+ r = environment_dirs(&dirs);
+ if (r < 0)
+ return r;
+
+ r = conf_files_list_strv(&files, ".conf", NULL, 0, (const char **) dirs);
+ if (r < 0)
+ return r;
+
+ /* This will mutate the existing environment, based on the presumption
+ * that in case of failure, a partial update is better than none. */
+
+ STRV_FOREACH(i, files) {
+ log_debug("Reading %s…", *i);
+
+ r = merge_env_file(&env, NULL, *i);
+ if (r == -ENOMEM)
+ return r;
+ }
+
+ STRV_FOREACH(i, env) {
+ char *t;
+ _cleanup_free_ char *q = NULL;
+
+ t = strchr(*i, '=');
+ assert(t);
+
+ q = shell_maybe_quote(t + 1, ESCAPE_BACKSLASH);
+ if (!q)
+ return log_oom();
+
+ printf("%.*s=%s\n", (int) (t - *i), *i, q);
+ }
+
+ return 0;
+}
+
+int main(int argc, char *argv[]) {
+ int r;
+
+ log_parse_environment();
+ log_open();
+
+ if (argc > 1) {
+ log_error("This program takes no arguments.");
+ return EXIT_FAILURE;
+ }
+
+ r = load_and_print();
+ if (r < 0)
+ log_error_errno(r, "Failed to load environment.d: %m");
+
+ return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
+}