add config parsing

3 files changed, 102 insertions, 26 deletions

diff --git a/src/config.c b/src/config.c
index b456c50..292e22d 100644
--- a/src/config.c
+++ b/src/config.c
@@ -6,8 +6,9 @@
 #include <string.h>
 #include "config.h"
 
-struct compile_cmd_t **ccmds;
-int ccmds_size = 0;
+struct compile_cmd_t ***ccmds;
+size_t ccmds_size = 0;
+
 int parse_config(const char *fpath, const struct stat *sb,
 		 int typeflag, struct FTW *ftwbuf)
 {
@@ -15,14 +16,18 @@ int parse_config(const char *fpath, const struct stat *sb,
     return 0;
 
   struct compile_cmd_t *ccmd = malloc (sizeof (struct compile_cmd_t));
-  struct compile_cmd_t **ccmds_tmp = realloc (ccmds, sizeof (ccmds)+sizeof (struct compile_cmd_t));
+  struct compile_cmd_t **ccmds_tmp = realloc (*ccmds, sizeof (ccmds)+sizeof (struct compile_cmd_t));
   if (ccmds_tmp)
-    ccmds = ccmds_tmp;
+    *ccmds = ccmds_tmp;
 
   FILE *cfg = fopen (fpath, "r");
 
+  int CMD_SET = 1;
+  int ARGS_SET = 2;
+  int FILEEXT_SET = 4;
+
   int filled = 0;
-  while (filled == 0) {
+  while (filled != (CMD_SET|ARGS_SET|FILEEXT_SET)) {
     char *line = strdup ("");
     int tmp_char;
     while ((tmp_char = fgetc (cfg))) {
@@ -32,7 +37,36 @@ int parse_config(const char *fpath, const struct stat *sb,
       if (tmp_char == '\n' || tmp_char == '\0')
 	break;
     }
-    printf ("%s", line);
+    char *seperator_fnd = strstr (line, "=");
+    if (!seperator_fnd)
+      puts ("invalid config line");
+    else {
+      char *value = strdup (seperator_fnd+1);
+      int identifier_len = strlen (line) - strlen (value) - 1;
+      char *identifier = malloc (identifier_len + 1);
+      strncpy(identifier, line, identifier_len);
+      identifier[identifier_len] = '\0';
+
+      if (strcmp (identifier, "compiler") == 0 && !(filled & CMD_SET)) {
+	ccmd->cmd = trim (strdup (value), NULL, NULL);
+	filled = filled | CMD_SET;
+      }
+      else if (strcmp (identifier, "args") == 0 && !(filled & ARGS_SET)) {
+	ccmd->args = trim (strdup (value), NULL, NULL);
+	filled = filled | ARGS_SET;
+      }
+      else if (strcmp (identifier, "fileext") == 0 && !(filled & FILEEXT_SET)) {
+	ccmd->fileext = trim (strdup (value), NULL, NULL);
+	filled = filled | FILEEXT_SET;
+      }
+      else {
+        printf ("warn: invalid configuration: %s\n", fpath);
+	exit (1);
+      }
+
+      free (identifier);
+      free (value);
+    }
     free (line);
   }
   fclose (cfg);
@@ -41,9 +75,9 @@ int parse_config(const char *fpath, const struct stat *sb,
   return 0;
 }
 
-void get_commands() {
-  //  struct compile_cmd_t **ccmds;
-  ccmds = malloc (sizeof (struct compile_cmd_t));
+size_t get_commands(struct compile_cmd_t ***ccmds_glob) {
+  ccmds = ccmds_glob;
+  *ccmds = malloc (sizeof (struct compile_cmd_t));
   char *home = getenv ("HOME");
   if (!home) {
     puts ("warn: HOME not found. Unable to read home configuration files.");
@@ -61,11 +95,5 @@ void get_commands() {
     free (paths[i]);
   }
   free (paths);
-
-  for (int i = 0; i < ccmds_size; i++) {
-    puts (ccmds[i]->cmd);
-    free (ccmds[i]->cmd);
-    free (ccmds[i]);
-  }
-  free (ccmds);
+  return ccmds_size;
 }
diff --git a/src/config.h b/src/config.h
index f27b17f..f73d2b3 100644
--- a/src/config.h
+++ b/src/config.h
@@ -1,7 +1,8 @@
+#include <stdlib.h>
 struct compile_cmd_t {
   char *cmd;
   char *args;
   char *fileext;
 };
 
-void get_commands();
+size_t get_commands(struct compile_cmd_t ***ccmds_glob);
diff --git a/src/main.c b/src/main.c
index d714ebe..fc1a8c2 100644
--- a/src/main.c
+++ b/src/main.c
@@ -2,34 +2,81 @@
 #include <stdio.h>
 #include <string.h>
 #include <errno.h>
+#include <unistd.h>
 
 #define _XOPEN_SOURCE 500
 #include <extlib.h>
 #include "config.h"
 
+
+struct compile_cmd_t *find_cmd(char *file_extension, struct compile_cmd_t **ccmds, size_t ccmds_len) {
+  for (int i = 0; i < ccmds_len; i++) {
+    if (strcmp (ccmds[i]->fileext, file_extension) == 0) {
+      return ccmds[i];
+    }
+  }
+  return NULL;
+}
+
 int main (int argc, char *argv[]) {
-  char *compiler = "gcc";
+  struct compile_cmd_t **ccmds;
+  size_t ccmds_len;
+
+  ccmds_len = get_commands(&ccmds);
+
+  size_t arglength = strlen (argv[argc-1]);
+  char **ap, *fileparts[arglength], *inputstring;
+  inputstring = strdup (argv[argc-1]);
+  size_t parts_len = 0;
+  for (ap = fileparts; (*ap = strsep (&inputstring, ".")) != NULL;) {
+    if (**ap != '\0') {
+      if (++ap >= &inputstring)
+	break;
+      parts_len += 1;
+    }
+  }
+
+  struct compile_cmd_t *matching_cmd = find_cmd(fileparts[parts_len-1], ccmds, ccmds_len);
+  if (!matching_cmd) {
+    puts ("error: no complier for file extension found");
+    return 1;
+  }
+
   char *tmplate = strdup ("/tmp/XXXXXX");
   if (!tmplate)
     exit (1);
   char *tmpdir = mkdtemp(tmplate);
   if (!tmpdir)
     exit (1);
-  char *cmd = malloc (strlen (compiler)+strlen(argv[argc-1])+strlen ("  -o  ")+strlen (tmpdir)+strlen ("/meow")+1);
-  char *excmd = malloc (strlen (tmplate)+strlen ("/meow")+1);
+  char *cmd = malloc (strlen (matching_cmd->cmd)+strlen(matching_cmd->args)+strlen(argv[argc-1])+strlen ("   -o   ")+strlen (tmpdir)+strlen ("/exec")+1);
+  char *excmd = malloc (strlen (tmplate)+strlen ("/exec")+1);
   if (!cmd)
     exit (1);
   if (!excmd)
     exit (1);
   puts (tmpdir);
-  sprintf (cmd, "%s %s -o %s/meow", compiler, argv[argc-1], tmpdir);
-  system (cmd);
-  sprintf (excmd, "%s/meow", tmpdir);
-  system (excmd);
-  int rtrn = rrmdir (tmpdir);
+  sprintf (cmd, "%s %s  %s -o %s/exec", matching_cmd->cmd, matching_cmd->args, argv[argc-1], tmpdir);
+  int cmp_rtrn = system (cmd);
+  if (cmp_rtrn != 0) {
+    fprintf(stderr, "error: compiler failed");
+    return 1;
+  }
+  sprintf (excmd, "%s/exec", tmpdir);
+  puts (cmd);
+  puts (excmd);
+  int sys_rtrn = system (excmd);
+  if (sys_rtrn != 0) {
+    fprintf (stderr, "error: binary failed");
+  }
+  /*  int rtrn = rrmdir (tmpdir);
   if (rtrn != 0)
     printf ("%d %d\n", rtrn, errno);
-  get_commands();
+  */
+  for (int i = 0; i < ccmds_len; i++) {
+    free (ccmds[i]->cmd);
+    free (ccmds[i]);
+  }
+  free (ccmds);
   free (tmpdir);
   free (cmd);
   free (excmd);