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gtk-demo: Improve an error message

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Be more helpful when we can't do syntax highlighting.
This commit is contained in:
Matthias Clasen 2020-08-08 12:51:31 -04:00
parent d1d269ea6b
commit 4f5e3b7b0d
1 changed files with 11 additions and 4 deletions
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15
demos/gtk-demo/main.c
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@ -239,7 +239,6 @@ fontify_text (const char *format,
const char *text) const char *text)
{ {
GSubprocess *subprocess; GSubprocess *subprocess;
static gboolean warned = FALSE;
GBytes *stdin_buf; GBytes *stdin_buf;
GBytes *stdout_buf = NULL; GBytes *stdout_buf = NULL;
GBytes *stderr_buf = NULL; GBytes *stderr_buf = NULL;
@ -259,11 +258,19 @@ fontify_text (const char *format,
if (!subprocess) if (!subprocess)
{ {
if (!warned) if (g_error_matches (error, G_SPAWN_ERROR, G_SPAWN_ERROR_NOENT))
{ {
g_warning ("%s", error->message); static gboolean warned = FALSE;
warned = TRUE;
if (!warned)
{
warned = TRUE;
g_message ("For syntax highlighting, install the “highlight” program");
}
} }
else
g_warning ("%s", error->message);
g_clear_error (&error); g_clear_error (&error);
return NULL; return NULL;