From 7b3eb51ec3ea3f96dc3d794e799f0d61c3e1d7be Mon Sep 17 00:00:00 2001
From: gramanas <anastasis.gramm2@gmail.com>
Date: Wed, 14 Nov 2018 16:42:40 +0200
Subject: XDG_CONFIG_HOME support

---
 src/actionparser.c | 14 +++++---------
 src/confparser.c   | 42 +++++++++++++++++++++++++++++++++++++++++-
 src/confparser.h   |  1 +
 3 files changed, 47 insertions(+), 10 deletions(-)

(limited to 'src')

diff --git a/src/actionparser.c b/src/actionparser.c
index 5c6abf7..9ca2867 100644
--- a/src/actionparser.c
+++ b/src/actionparser.c
@@ -10,6 +10,7 @@
  * -------------------------------------------------------------------------- */
 #include "ckutil.h"
 #include "actionparser.h"
+#include "confparser.h"
 #include "ckinfo.h"
 #include "ckerrlog.h"
 
@@ -236,10 +237,9 @@ void free_user_opt(UserOpt *opt) {
   list_free(opt->args);
 }
 
-/* If the used has specified a config file other
- * than the default get it now */
+/* find the correct config */
 int get_config(UserOpt *opt) {
-  /* get first token */
+  /* If it's a cli option */
   if (next_token()) {
     for (int i = 1; i < atoi(strConfDir[0]) + 1; i++) {
       if (strcmp(token, strConfDir[i]) == 0) {
@@ -262,16 +262,12 @@ int get_config(UserOpt *opt) {
         return 0;
       }
     }
-    // rewind
+    /* rewind */
     pos = pos - 1;
     token = opts[pos];
    }
-  char defaultConf[STR_S] = ".ck";
-  char * home = getenv("HOME");
-  opt->confDir = malloc(strlen(defaultConf) + 1 /* '/' */ + strlen(home) + 1);
-  str_join_dirname_with_basename(opt->confDir, home, defaultConf);
 
-  return 0;
+  return find_config(opt);
 }
 
 int version() {
diff --git a/src/confparser.c b/src/confparser.c
index 019cf14..046bee7 100644
--- a/src/confparser.c
+++ b/src/confparser.c
@@ -14,7 +14,7 @@
 
 ERRLOG(configfile);
 
-const char * const CONFIG_NAME = "/ckrc";
+static const char * const CONFIG_NAME = "/ckrc";
 
 void initialize_conf(Conf *c) {
 #define X(var, str, name)                       \
@@ -53,6 +53,46 @@ void make_config_name(char * ret, const char *confPath) {
   strcpy(ret, tmp);
 }
 
+int find_config(UserOpt *opt) {
+  /* If env CK_CONFIG is set */
+  char *config_home = getenv("CK_CONFIG");
+  if (config_home) {
+    if (util_is_dir(config_home)) {
+      opt->confDir = strdup(config_home);
+      LOG("Using $CK_CONFIG: %s", config_home);
+      return 0;
+    }
+  }
+  LOG("$CK_CONFIG not avaliable.")
+
+  /* If XDG_CONFIG_HOME exists*/
+  config_home = getenv("XDG_CONFIG_HOME");
+  if (config_home) {
+    if (util_is_dir(config_home)) {
+      char defaultConf[STR_S] = "ck";
+      opt->confDir = malloc(strlen(config_home) + 1 /* '/' */ + strlen(defaultConf) + 1);
+      str_join_dirname_with_basename(opt->confDir, config_home, defaultConf);
+      LOG("Using $XDG_CONFIG_HOME: %s", config_home);
+      return 0;
+    }
+  }
+  LOG("$XDG_CONFIG_HOME not avaliable.")
+
+  /* fallback to HOME/.ck */
+  config_home = getenv("HOME");
+  if (config_home) {
+    if (util_is_dir(config_home)) {
+      char defaultConf[STR_S] = ".ck";
+      opt->confDir = malloc(strlen(config_home) + 1 /* '/' */ + strlen(defaultConf) + 1);
+      str_join_dirname_with_basename(opt->confDir, config_home, defaultConf);
+      LOG("Using $HOME: %s", config_home);
+      return 0;
+    }
+  }
+  LOG("$XDG_CONFIG_HOME not avaliable.");
+  return -1;
+}
+
 int config_file_parse(Conf *conf, UserOpt *opt) {
   LOG("Using '%s' for ck configuration directory", opt->confDir);
   FILE *confPtr;
diff --git a/src/confparser.h b/src/confparser.h
index d8013e0..11ada7f 100644
--- a/src/confparser.h
+++ b/src/confparser.h
@@ -43,6 +43,7 @@ struct ConfigValues {
 int config_file_parse(Conf *conf, UserOpt *opt);
 
 void make_config_name(char * ret, const char *confPath);
+int find_config(UserOpt *opt);
 void initialize_conf(Conf *conf);
 void free_conf(Conf *conf);
 #endif // CONFPARSER_H
-- 
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