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swaygrab: add default output filename.

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With this it's possible to run `swaygrab` without a filename argument.
With no filename supplied it will use a default name based on the
current time.

The default file will get the extension `png` for screenshots and `webm`
for video capture.
This commit is contained in:
Mikkel Oscar Lyderik 2015-12-17 18:25:25 +01:00
parent b656297d4f
commit c97555d9f0
1 changed files with 23 additions and 4 deletions
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27
swaygrab/main.c
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@ -135,6 +135,19 @@ char *get_focused_output(int socketfd) {
return output;
}
char *default_filename(const char *extension) {
int ext_len = strlen(extension);
int len = 28 + ext_len; // format: "2015-12-17-180040_swaygrab.ext"
char *filename = malloc(len * sizeof(char));
time_t t = time(NULL);
struct tm *lt = localtime(&t);
strftime(filename, len, "%Y-%m-%d-%H%M%S_swaygrab.", lt);
strncat(filename, extension, ext_len);
return filename;
}
int main(int argc, char **argv) {
static int capture = 0, raw = 0;
char *socket_path = NULL;
@ -214,10 +227,7 @@ int main(int argc, char **argv) {
if (optind >= argc + 1) {
sway_abort("Invalid usage. See `man swaygrab` %d %d", argc, optind);
}
} else {
if (optind >= argc) {
sway_abort("Invalid usage. See `man swaygrab`");
}
} else if (optind < argc) {
file = argv[optind];
}
@ -228,6 +238,14 @@ int main(int argc, char **argv) {
output = get_focused_output(socketfd);
}
if (!file) {
if (!capture) {
file = default_filename("png");
} else {
file = default_filename("webm");
}
}
if (!capture) {
grab_and_apply_magick(file, output, socketfd, raw);
} else {
@ -235,6 +253,7 @@ int main(int argc, char **argv) {
}
free(output);
free(file);
close(socketfd);
return 0;
}