Remove color-related code from rust_log

This is all dead. If someone decides they want color it will be easy to redo.

Author: brson

src/rt/rust_log.cpp

@@ -1,6 +1,5 @@
 /*
- * Logging infrastructure that aims to support multi-threading,
- * and ansi colors.
+ * Logging infrastructure that aims to support multi-threading
  */
 
 #include "rust_internal.h"
@@ -9,13 +8,6 @@
 #include <stdlib.h>
 #include <string.h>
 
-static const char * _foreground_colors[] = { "[37m",
-                                             "[31m", "[1;31m",
-                                             "[32m", "[1;32m",
-                                             "[33m", "[1;33m",
-                                             "[31m", "[1;31m",
-                                             "[35m", "[1;35m",
-                                             "[36m", "[1;36m" };
 
 /**
  * Synchronizes access to the underlying logging mechanism.
@@ -25,8 +17,7 @@ static uint32_t _last_thread_id;
 
 rust_log::rust_log(rust_srv *srv, rust_scheduler *sched) :
     _srv(srv),
-    _sched(sched),
-    _use_colors(getenv("RUST_COLOR_LOG")) {
+    _sched(sched) {
 }
 
 rust_log::~rust_log() {
@@ -45,11 +36,6 @@ hash(uintptr_t ptr) {
     return (uint16_t) ptr;
 }
 
-const char *
-get_color(uintptr_t ptr) {
-    return _foreground_colors[hash(ptr) % rust_log::LIGHTTEAL];
-}
-
 char *
 copy_string(char *dst, const char *src, size_t length) {
     return strncpy(dst, src, length) + length;
@@ -67,21 +53,6 @@ append_string(char *buffer, const char *format, ...) {
     return buffer;
 }
 
-char *
-append_string(char *buffer, rust_log::ansi_color color,
-              const char *format, ...) {
-    if (buffer != NULL && format) {
-        append_string(buffer, "\x1b%s", _foreground_colors[color]);
-        va_list args;
-        va_start(args, format);
-        size_t off = strlen(buffer);
-        vsnprintf(buffer + off, BUF_BYTES - off, format, args);
-        va_end(args);
-        append_string(buffer, "\x1b[0m");
-    }
-    return buffer;
-}
-
 void
 rust_log::trace_ln(uint32_t thread_id, char *prefix, char *message) {
     char buffer[BUF_BYTES] = "";

src/rt/rust_log.h

@@ -41,22 +41,6 @@ class rust_log {
     rust_log(rust_srv *srv, rust_scheduler *sched);
     virtual ~rust_log();
 
-    enum ansi_color {
-        WHITE,
-        RED,
-        LIGHTRED,
-        GREEN,
-        LIGHTGREEN,
-        YELLOW,
-        LIGHTYELLOW,
-        BLUE,
-        LIGHTBLUE,
-        MAGENTA,
-        LIGHTMAGENTA,
-        TEAL,
-        LIGHTTEAL
-    };
-
     void trace_ln(rust_task *task, uint32_t level, char *message);
     void trace_ln(uint32_t thread_id, char *prefix, char *message);
     bool is_tracing(uint32_t type_bits);
@@ -65,7 +49,6 @@ class rust_log {
     rust_srv *_srv;
     rust_scheduler *_sched;
     bool _use_labels;
-    bool _use_colors;
     void trace_ln(rust_task *task, char *message);
 };