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Set and check COLORTERM as a hint for RGB colour.

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This commit is contained in:
nicm
2025-10-30 11:52:25 +00:00
parent 1e61e52400
commit 29db8ac36e
2 changed files with 18 additions and 0 deletions
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6
environ.c
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@@ -262,6 +262,12 @@ environ_for_session(struct session *s, int no_TERM)
environ_set(env, "TERM", 0, "%s", value); environ_set(env, "TERM", 0, "%s", value);
environ_set(env, "TERM_PROGRAM", 0, "%s", "tmux"); environ_set(env, "TERM_PROGRAM", 0, "%s", "tmux");
environ_set(env, "TERM_PROGRAM_VERSION", 0, "%s", getversion()); environ_set(env, "TERM_PROGRAM_VERSION", 0, "%s", getversion());
environ_set(env, "COLORTERM", 0, "truecolor");
} else {
environ_unset(env, "TERM");
environ_unset(env, "TERM_PROGRAM");
environ_unset(env, "TERM_PROGRAM_VERSION");
environ_unset(env, "COLORTERM");
} }
if (s != NULL) if (s != NULL)

12
tty-term.c
View File

@@ -532,6 +532,7 @@ tty_term_create(struct tty *tty, char *name, char **caps, u_int ncaps,
size_t offset, namelen; size_t offset, namelen;
char *first; char *first;
int n; int n;
struct environ_entry *envent;
log_debug("adding term %s", name); log_debug("adding term %s", name);
@@ -595,6 +596,17 @@ tty_term_create(struct tty *tty, char *name, char **caps, u_int ncaps,
a = options_array_next(a); a = options_array_next(a);
} }
/* Check for COLORTERM. */
envent = environ_find(tty->client->environ, "COLORTERM");
if (envent != NULL) {
log_debug("%s COLORTERM=%s", tty->client->name, envent->value);
if (strcasecmp(envent->value, "truecolor") == 0 ||
strcasecmp(envent->value, "24bit") == 0)
tty_add_features(feat, "RGB", ",");
else if (strstr(s, "256") != NULL)
tty_add_features(feat, "256", ",");
}
/* Apply overrides so any capabilities used for features are changed. */ /* Apply overrides so any capabilities used for features are changed. */
tty_term_apply_overrides(term); tty_term_apply_overrides(term);