Staging
v0.5.1
Revision b2c2e4c22c6a4fe151f02380d247cf3d9a9d5d1e authored by Jakub Narebski on 24 January 2010, 18:05:23 UTC, committed by Junio C Hamano on 25 January 2010, 01:48:08 UTC
In Internet Explorer 8 (IE8) the 'blame_incremental' view, which uses
JavaScript to generate blame info using AJAX, sometimes hang at the
beginning (at 0%) of blaming, e.g. for larger files with long history
like git's own gitweb/gitweb.perl.

The error shown by JavaScript console is "Unspecified error" at char:2
of the following line in gitweb/gitweb.js:

  if (xhr.readyState === 3 && xhr.status !== 200) {

Debugging it using IE8 JScript debuger shown that the error occurs
when trying to access xhr.status (xhr is XMLHttpRequest object).
Watch for xhr object shows 'Unspecified error.' as "value" of
xhr.status, and trying to access xhr.status from console throws error.

This bug is some intermittent bug, depending on XMLHttpRequest timing,
as it doesn't occur in all cases.  It is probably caused by the fact
that handleResponse is called from timer (pollTimer), to work around
the fact that some browsers call onreadystatechange handler only once
for each state change, and not like required for 'blame_incremental'
as soon as new data is available from server.  It looks like xhr
object is not properly initialized; still it is a bug to throw an
error when accessing xhr.status (and not use 'null' or 'undefined' as
value).

Work around this bug in IE8 by using try-catch block when accessing
xhr.status.

Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
1 parent 026680f
Raw File
color.h
#ifndef COLOR_H
#define COLOR_H

/* "\033[1;38;5;2xx;48;5;2xxm\0" is 23 bytes */
#define COLOR_MAXLEN 24

/*
 * 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
 */
extern int git_use_color_default;


/*
 * Use this instead of git_default_config if you need the value of color.ui.
 */
int git_color_default_config(const char *var, const char *value, void *cb);

int git_config_colorbool(const char *var, const char *value, int stdout_is_tty);
void color_parse(const char *value, const char *var, char *dst);
void color_parse_mem(const char *value, int len, const char *var, char *dst);
__attribute__((format (printf, 3, 4)))
int color_fprintf(FILE *fp, const char *color, const char *fmt, ...);
__attribute__((format (printf, 3, 4)))
int color_fprintf_ln(FILE *fp, const char *color, const char *fmt, ...);
int color_fwrite_lines(FILE *fp, const char *color, size_t count, const char *buf);

#endif /* COLOR_H */
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