Add the ability to read a per-user config file located at

$HOME/.avrduderc.  Entries from .avrduderc take precedence over those
from the system wide config file in ${PREFIX}/etc/avrdude.conf.

Track and display the config file name and line number when we print
out the available parts and programmers.  This is useful in case
someone has overridden a definition in their .avrduderc file and is
wondering why the definition in the system wide config file is not
being used.

Remove the default programmer 'stk500' from the distributed config
file.


git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@222 81a1dc3b-b13d-400b-aceb-764788c761c2

avr.c

@@ -60,6 +60,8 @@ AVRPART * avr_new_part(void)
   p->reset_disposition = RESET_DEDICATED;
   p->retry_pulse = PIN_AVR_SCK;
   p->flags = AVRPART_SERIALOK | AVRPART_PARALLELOK;
+  p->config_file[0] = 0;
+  p->lineno = 0;
 
   p->mem = lcreat(NULL, 0);
 

avrdude.conf.sample

@@ -174,7 +174,6 @@
 #
 default_parallel   = "/dev/ppi0";
 default_serial     = "/dev/cuaa0";
-default_programmer = "stk500";
 
 
 #

avrpart.h

@@ -22,6 +22,8 @@
 #ifndef __avrpart_h__
 #define __avrpart_h__
 
+#include <limits.h>
+
 #include "lists.h"
 
 /*
@@ -91,6 +93,8 @@ typedef struct avrpart {
   OPCODE      * op[AVR_OP_MAX];     /* opcodes */
 
   LISTID        mem;                /* avr memory definitions */
+  char          config_file[PATH_MAX]; /* config file where defined */
+  int           lineno;                /* config file line number */
 } AVRPART;
 
 #define AVR_MEMDESCLEN 64

config_gram.y

@@ -154,7 +154,10 @@ def :
 
 prog_def :
   K_PROGRAMMER 
-    { current_prog = pgm_new(); }
+    { current_prog = pgm_new();
+      strcpy(current_prog->config_file, infile);
+      current_prog->lineno = lineno;
+    }
     prog_parms
     { 
       if (lsize(current_prog->id) == 0) {
@@ -168,7 +171,7 @@ prog_def :
                 progname, infile, lineno);
         exit(1);
       }
-      ladd(programmers, current_prog); 
+      PUSH(programmers, current_prog); 
       current_prog = NULL; 
     }
 ;
@@ -176,7 +179,11 @@ prog_def :
 
 part_def :
   K_PART
-    { current_part = avr_new_part(); }
+    {
+      current_part = avr_new_part();
+      strcpy(current_part->config_file, infile);
+      current_part->lineno = lineno;
+    }
     part_parms 
     { 
       LNODEID ln;
@@ -226,7 +233,7 @@ part_def :
         }
       }
 
-      ladd(part_list, current_part); 
+      PUSH(part_list, current_part); 
       current_part = NULL; 
     }
 ;

main.c

@@ -39,6 +39,8 @@
 #include <time.h>
 #include <unistd.h>
 #include <ctype.h>
+#include <sys/types.h>
+#include <sys/stat.h>
 
 #include "avr.h"
 #include "config.h"
@@ -59,8 +61,6 @@ char   progbuf[PATH_MAX]; /* temporary buffer of spaces the same
 
 PROGRAMMER * pgm = NULL;
 
-PROGRAMMER * compiled_in_pgm;
-
 /*
  * global options
  */
@@ -140,6 +140,7 @@ int read_config(char * file)
     return -1;
   }
 
+  lineno = 1;
   infile = file;
   yyin   = f;
 
@@ -155,7 +156,8 @@ int read_config(char * file)
 
 void programmer_display(char * p)
 {
-  fprintf(stderr, "%sProgrammer Type: %s\n", p, pgm->type);
+  fprintf(stderr, "%sProgrammer Type : %s\n", p, pgm->type);
+  fprintf(stderr, "%sDescription     : %s\n", p, pgm->desc);
 
   pgm->display(pgm, p);
 }
@@ -227,7 +229,23 @@ void list_parts(FILE * f, char * prefix, LISTID parts)
 
   for (ln1=lfirst(parts); ln1; ln1=lnext(ln1)) {
     p = ldata(ln1);
-    fprintf(f, "%s%-4s = %s\n", prefix, p->id, p->desc);
+    fprintf(f, "%s%-4s = %-15s [%s:%d]\n", 
+            prefix, p->id, p->desc, p->config_file, p->lineno);
+  }
+
+  return;
+}
+
+void list_programmers(FILE * f, char * prefix, LISTID programmers)
+{
+  LNODEID ln1;
+  PROGRAMMER * p;
+
+  for (ln1=lfirst(programmers); ln1; ln1=lnext(ln1)) {
+    p = ldata(ln1);
+    fprintf(f, "%s%-8s = %-30s [%s:%d]\n", 
+            prefix, (char *)ldata(lfirst(p->id)), p->desc, 
+            p->config_file, p->lineno);
   }
 
   return;
@@ -252,6 +270,7 @@ int main(int argc, char * argv [])
   int              ppidata;	/* cached value of the ppi data register */
   int              vsize=-1;    /* number of bytes to verify */
   AVRMEM         * sig;         /* signature data */
+  struct stat      sb;
 
   /* options / operating mode variables */
   char *  memtype;     /* "flash", "eeprom", etc */
@@ -270,10 +289,12 @@ int main(int argc, char * argv [])
   char  * exitspecs;   /* exit specs string from command line */
   char  * programmer;  /* programmer id */
   char  * partdesc;    /* part id */
-  char    configfile[PATH_MAX]; /* pin configuration file */
+  char    sys_config[PATH_MAX]; /* system wide config file */
+  char    usr_config[PATH_MAX]; /* per-user config file */
   int     cycles;      /* erase-rewrite cycles */
   int     set_cycles;  /* value to set the erase-rewrite cycles to */
   char  * e;           /* for strtol() error checking */
+  char  * homedir;
 
   progname = rindex(argv[0],'/');
   if (progname)
@@ -309,11 +330,21 @@ int main(int argc, char * argv [])
   do_cycles     = 0;
   set_cycles    = -1;
 
-  strcpy(configfile, CONFIG_DIR);
+  strcpy(sys_config, CONFIG_DIR);
-  i = strlen(configfile);
+  i = strlen(sys_config);
-  if (i && (configfile[i-1] != '/'))
+  if (i && (sys_config[i-1] != '/'))
-    strcat(configfile, "/");
+    strcat(sys_config, "/");
-  strcat(configfile, "avrdude.conf");
+  strcat(sys_config, "avrdude.conf");
+
+  usr_config[0] = 0;
+  homedir = getenv("HOME");
+  if (homedir != NULL) {
+    strcpy(usr_config, homedir);
+    i = strlen(usr_config);
+    if (i && (usr_config[i-1] != '/'))
+      strcat(usr_config, "/");
+    strcat(usr_config, ".avrduderc");
+  }
 
   len = strlen(progname) + 2;
   for (i=0; i<len; i++)
@@ -339,9 +370,9 @@ int main(int argc, char * argv [])
         programmer = optarg;
         break;
 
-      case 'C': /* pin configuration file */
+      case 'C': /* system wide configuration file */
-        strncpy(configfile, optarg, PATH_MAX);
+        strncpy(sys_config, optarg, PATH_MAX);
-        configfile[PATH_MAX-1] = 0;
+        sys_config[PATH_MAX-1] = 0;
         break;
 
       case 'm': /* select memory type to operate on */
@@ -481,13 +512,48 @@ int main(int argc, char * argv [])
             progname, version, progbuf);
   }
 
-  rc = read_config(configfile);
+  if (verbose) {
+    fprintf(stderr, "%sSystem wide configuration file is \"%s\"\n",
+            progbuf, sys_config);
+  }
+
+  rc = read_config(sys_config);
   if (rc) {
-    fprintf(stderr, "%s: error reading configuration file \"%s\"\n",
+    fprintf(stderr, 
-            progname, configfile);
+            "%s: error reading system wide configuration file \"%s\"\n",
+            progname, sys_config);
     exit(1);
   }
 
+  if (usr_config[0] != 0) {
+    if (verbose) {
+      fprintf(stderr, "%sUser configuration file is \"%s\"\n",
+              progbuf, usr_config);
+    }
+
+    rc = stat(usr_config, &sb);
+    if ((rc < 0) || ((sb.st_mode & S_IFREG) == 0)) {
+      if (verbose) {
+        fprintf(stderr,
+                "%sUser configuration file does not exist or is not a "
+                "regular file, skipping\n",
+                progbuf);
+      }
+    }
+    else {
+      rc = read_config(usr_config);
+      if (rc) {
+        fprintf(stderr, "%s: error reading user configuration file \"%s\"\n",
+                progname, usr_config);
+        exit(1);
+      }
+    }
+  }
+
+  if (verbose) {
+    fprintf(stderr, "\n");
+  }
+
   if (programmer[0] == 0) {
     fprintf(stderr, 
             "\n%s: no programmer has been specified on the command line "
@@ -501,9 +567,12 @@ int main(int argc, char * argv [])
 
   pgm = locate_programmer(programmers, programmer);
   if (pgm == NULL) {
+    fprintf(stderr,"\n");
     fprintf(stderr, 
             "%s: Can't find programmer id \"%s\"\n",
             progname, programmer);
+    fprintf(stderr,"\nValid programmers are:\n");
+    list_programmers(stderr, "  ", programmers);
     fprintf(stderr,"\n");
     exit(1);
   }
@@ -516,13 +585,11 @@ int main(int argc, char * argv [])
 
   if (partdesc == NULL) {
     fprintf(stderr, 
-            "%s: No AVR part has been specified, use \"-p Part\"\n\n"
+            "%s: No AVR part has been specified, use \"-p Part\"\n\n",
-            "  Valid Parts are:\n\n",
             progname);
+    fprintf(stderr,"Valid parts are:\n");
     list_parts(stderr, "  ", part_list);
     fprintf(stderr, "\n");
-    fprintf(stderr, "(These come from the config file \"%s\")\n", configfile);
-    fprintf(stderr, "\n");
     exit(1);
   }
 
@@ -530,12 +597,11 @@ int main(int argc, char * argv [])
   p = locate_part(part_list, partdesc);
   if (p == NULL) {
     fprintf(stderr, 
-            "%s: AVR Part \"%s\" not found.  Valid parts are:\n\n",
+            "%s: AVR Part \"%s\" not found.\n\n",
             progname, partdesc);
+    fprintf(stderr,"Valid parts are:\n");
     list_parts(stderr, "  ", part_list);
     fprintf(stderr, "\n");
-    fprintf(stderr, "(These come from the config file \"%s\")\n", configfile);
-    fprintf(stderr, "\n");
     exit(1);
   }
 

par.c

@@ -553,10 +553,6 @@ static void par_display(PROGRAMMER * pgm, char * p)
     strcpy(buffpins, " (not used)");
   }
 
-
-  fprintf(stderr, "%sProgrammer Pin Configuration: %s (%s)\n", p, 
-          (char *)ldata(lfirst(pgm->id)), pgm->desc);
-
   fprintf(stderr, 
           "%s  VCC     = 0x%02x%s\n"
           "%s  BUFF    = 0x%02x%s\n"

pgm.c

@@ -55,6 +55,8 @@ PROGRAMMER * pgm_new(void)
   pgm->id = lcreat(NULL, 0);
   pgm->desc[0] = 0;
   pgm->type[0] = 0;
+  pgm->config_file[0] = 0;
+  pgm->lineno = 0;
 
   for (i=0; i<N_PINS; i++)
     pgm->pinno[i] = 0;

pgm.h

@@ -66,6 +66,8 @@ typedef struct programmer_t {
                           int page_size, int n_bytes);
   int  (*paged_load)     (struct programmer_t * pgm, AVRPART * p, AVRMEM * m,
                           int page_size, int n_bytes);
+  char config_file[PATH_MAX]; /* config file where defined */
+  int  lineno;                /* config file line number */
 } PROGRAMMER;