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tint2conf: Checksum files to identify and back up manually edited configs

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This commit is contained in:
o9000 2015-04-25 21:38:55 +02:00
parent 2ecb1c4ef4
commit 89e2057a8e
1 changed files with 50 additions and 13 deletions
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63
src/tint2conf/properties_rw.c
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@ -86,7 +86,7 @@ void config_write_color(FILE *fp, char *name, GdkColor color, int opacity)
void config_write_backgrounds(FILE *fp)
{
fprintf(fp, "#--------------------------------\n");
fprintf(fp, "#-------------------------------------\n");
fprintf(fp, "# Backgrounds\n");
int index;
@ -128,7 +128,7 @@ void config_write_backgrounds(FILE *fp)
void config_write_panel(FILE *fp)
{
fprintf(fp, "#--------------------------------\n");
fprintf(fp, "#-------------------------------------\n");
fprintf(fp, "# Panel\n");
char *items = get_panel_items();
fprintf(fp, "panel_items = %s\n", items);
@ -219,7 +219,7 @@ void config_write_panel(FILE *fp)
void config_write_taskbar(FILE *fp)
{
fprintf(fp, "#--------------------------------\n");
fprintf(fp, "#-------------------------------------\n");
fprintf(fp, "# Taskbar\n");
fprintf(fp,
@ -309,7 +309,7 @@ void config_write_task_background(FILE *fp, char *name, GtkWidget *task_backgrou
void config_write_task(FILE *fp)
{
fprintf(fp, "#--------------------------------\n");
fprintf(fp, "#-------------------------------------\n");
fprintf(fp, "# Task\n");
fprintf(fp, "task_text = %d\n", gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(task_show_text)) ? 1 : 0);
@ -398,7 +398,7 @@ void config_write_task(FILE *fp)
void config_write_systray(FILE *fp)
{
fprintf(fp, "#--------------------------------\n");
fprintf(fp, "#-------------------------------------\n");
fprintf(fp, "# System tray (notification area)\n");
fprintf(fp,
@ -436,7 +436,7 @@ void config_write_systray(FILE *fp)
void config_write_launcher(FILE *fp)
{
fprintf(fp, "#--------------------------------\n");
fprintf(fp, "#-------------------------------------\n");
fprintf(fp, "# Launcher\n");
fprintf(fp,
@ -495,7 +495,7 @@ void config_write_launcher(FILE *fp)
void config_write_clock(FILE *fp)
{
fprintf(fp, "#--------------------------------\n");
fprintf(fp, "#-------------------------------------\n");
fprintf(fp, "# Clock\n");
fprintf(fp, "time1_format = %s\n", gtk_entry_get_text(GTK_ENTRY(clock_format_line1)));
@ -527,7 +527,7 @@ void config_write_clock(FILE *fp)
void config_write_battery(FILE *fp)
{
fprintf(fp, "#--------------------------------\n");
fprintf(fp, "#-------------------------------------\n");
fprintf(fp, "# Battery\n");
fprintf(fp, "battery_low_status = %g\n", gtk_spin_button_get_value(GTK_SPIN_BUTTON(battery_alert_if_lower)));
@ -552,7 +552,7 @@ void config_write_battery(FILE *fp)
void config_write_tooltip(FILE *fp)
{
fprintf(fp, "#--------------------------------\n");
fprintf(fp, "#-------------------------------------\n");
fprintf(fp, "# Tooltip\n");
fprintf(fp, "tooltip_show_timeout = %g\n", gtk_spin_button_get_value(GTK_SPIN_BUTTON(tooltip_show_after)));
@ -575,14 +575,38 @@ void config_write_tooltip(FILE *fp)
fprintf(fp, "\n");
}
// Similar to BSD checksum, except we skip the first line (metadata)
unsigned short checksum_txt(FILE *f)
{
unsigned int checksum = 0;
fseek(f, 0, SEEK_SET);
// Skip the first line
int c;
do {
c = getc(f);
} while (c != EOF && c != '\n');
while ((c = getc(f)) != EOF) {
// Rotate right
checksum = (checksum >> 1) + ((checksum & 1) << 15);
// Update checksum
checksum += c;
// Truncate to 16 bits
checksum &= 0xffff;
}
return checksum;
}
void config_save_file(const char *path) {
printf("config_save_file : %s\n", path);
FILE *fp;
if ((fp = fopen(path, "wt")) == NULL)
if ((fp = fopen(path, "w+t")) == NULL)
return;
fprintf(fp, "#---- Generated by tint2conf ----\n");
unsigned short checksum = 0;
fprintf(fp, "#---- Generated by tint2conf %04x ----\n", checksum);
config_write_backgrounds(fp);
config_write_panel(fp);
@ -594,6 +618,11 @@ void config_save_file(const char *path) {
config_write_battery(fp);
config_write_tooltip(fp);
checksum = checksum_txt(fp);
fseek(fp, 0, SEEK_SET);
fflush(fp);
fprintf(fp, "#---- Generated by tint2conf %04x ----\n", checksum);
fclose(fp);
}
@ -608,8 +637,16 @@ gboolean config_is_manual(const char *path)
result = TRUE;
if (fgets(line, sizeof(line), fp) != NULL) {
if (g_str_equal(line, "#---- Generated by tint2conf ----\n")) {
result = FALSE;
if (!g_regex_match_simple("^#---- Generated by tint2conf [0-9a-f][0-9a-f][0-9a-f][0-9a-f] ----\n$", line, 0, 0)) {
result = TRUE;
} else {
unsigned short checksum1 = checksum_txt(fp);
unsigned short checksum2 = 0;
if (sscanf(line, "#---- Generated by tint2conf %hxu", &checksum2) == 1) {
result = checksum1 != checksum2;
} else {
result = TRUE;
}
}
}
fclose(fp);