Merge branch 'jc/color-attrs' into maint

* jc/color-attrs:
  color: allow multiple attributes

diff --cc color.c
Simple merge

diff --cc color.h
index 3cb4b7fc890880b0fcf19a11c6bc7de6b10d6e8d,e2988f4e93f95ece2a1b0721fa8a17aa3f030756..bcb28cf10f2cbef11d9dba0e5a7f3f0515cbbd70
--- 1/color.h
--- 2/color.h
+++ b/color.h
@@@ -1,25 -1,21 +1,37 @@@
  #ifndef COLOR_H
  #define COLOR_H
  
- /* "\033[1;38;5;2xx;48;5;2xxm\0" is 23 bytes */
- #define COLOR_MAXLEN 24
+ /*  2 + (2 * num_attrs) + 8 + 1 + 8 + 'm' + NUL */
+ /* "\033[1;2;4;5;7;38;5;2xx;48;5;2xxm\0" */
+ /*
+  * The maximum length of ANSI color sequence we would generate:
+  * - leading ESC '['            2
+  * - attr + ';'                 2 * 8 (e.g. "1;")
+  * - fg color + ';'             9 (e.g. "38;5;2xx;")
+  * - fg color + ';'             9 (e.g. "48;5;2xx;")
+  * - terminating 'm' NUL        2
+  *
+  * The above overcounts attr (we only use 5 not 8) and one semicolon
+  * but it is close enough.
+  */
+ #define COLOR_MAXLEN 40
  
 +/*
 + * IMPORTANT: Due to the way these color codes are emulated on Windows,
 + * write them only using printf(), fprintf(), and fputs(). In particular,
 + * do not use puts() or write().
 + */
 +#define GIT_COLOR_NORMAL      ""
 +#define GIT_COLOR_RESET               "\033[m"
 +#define GIT_COLOR_BOLD                "\033[1m"
 +#define GIT_COLOR_RED         "\033[31m"
 +#define GIT_COLOR_GREEN               "\033[32m"
 +#define GIT_COLOR_YELLOW      "\033[33m"
 +#define GIT_COLOR_BLUE                "\033[34m"
 +#define GIT_COLOR_MAGENTA     "\033[35m"
 +#define GIT_COLOR_CYAN                "\033[36m"
 +#define GIT_COLOR_BG_RED      "\033[41m"
 +
  /*
   * This variable stores the value of color.ui
   */

diff --cc t/t4026-color.sh
Simple merge