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authorJan Synacek <jsynacek@redhat.com>2016-01-19 10:17:19 +0100
committerJan Synacek <jsynacek@redhat.com>2016-01-20 10:12:41 +0100
commit40c9fe4c0862114dab390c8ed16f78cf056b9140 (patch)
tree04bb1f55765a432bb0495963871eaf6dcd10faaf /src
parentd619a0c4a5bf4f9d5796bcac77160a14e4e24cb6 (diff)
basic/terminal-util: introduce SYSTEMD_COLORS environment variable
... to determine if color output should be enabled. If the variable is not set, fall back to using on_tty(). Also, rewrite existing code to use colors_enabled() where appropriate.
Diffstat (limited to 'src')
-rw-r--r--src/basic/terminal-util.c13
-rw-r--r--src/basic/terminal-util.h17
-rw-r--r--src/journal/journalctl.c2
-rw-r--r--src/login/loginctl.c2
-rw-r--r--src/machine/machinectl.c2
-rw-r--r--src/systemctl/systemctl.c2
6 files changed, 26 insertions, 12 deletions
diff --git a/src/basic/terminal-util.c b/src/basic/terminal-util.c
index 7c9de72bb7..fedfc8a5df 100644
--- a/src/basic/terminal-util.c
+++ b/src/basic/terminal-util.c
@@ -1135,3 +1135,16 @@ int open_terminal_in_namespace(pid_t pid, const char *name, int mode) {
return receive_one_fd(pair[0], 0);
}
+
+bool colors_enabled(void) {
+ const char *colors;
+
+ colors = getenv("SYSTEMD_COLORS");
+ if (!colors) {
+ if (streq_ptr(getenv("TERM"), "dumb"))
+ return false;
+ return on_tty();
+ }
+
+ return parse_boolean(colors) != 0;
+}
diff --git a/src/basic/terminal-util.h b/src/basic/terminal-util.h
index 597a0060ad..a7c96a77cb 100644
--- a/src/basic/terminal-util.h
+++ b/src/basic/terminal-util.h
@@ -79,37 +79,38 @@ unsigned lines(void);
void columns_lines_cache_reset(int _unused_ signum);
bool on_tty(void);
+bool colors_enabled(void);
static inline const char *ansi_underline(void) {
- return on_tty() ? ANSI_UNDERLINE : "";
+ return colors_enabled() ? ANSI_UNDERLINE : "";
}
static inline const char *ansi_highlight(void) {
- return on_tty() ? ANSI_HIGHLIGHT : "";
+ return colors_enabled() ? ANSI_HIGHLIGHT : "";
}
static inline const char *ansi_highlight_underline(void) {
- return on_tty() ? ANSI_HIGHLIGHT_UNDERLINE : "";
+ return colors_enabled() ? ANSI_HIGHLIGHT_UNDERLINE : "";
}
static inline const char *ansi_highlight_red(void) {
- return on_tty() ? ANSI_HIGHLIGHT_RED : "";
+ return colors_enabled() ? ANSI_HIGHLIGHT_RED : "";
}
static inline const char *ansi_highlight_green(void) {
- return on_tty() ? ANSI_HIGHLIGHT_GREEN : "";
+ return colors_enabled() ? ANSI_HIGHLIGHT_GREEN : "";
}
static inline const char *ansi_highlight_yellow(void) {
- return on_tty() ? ANSI_HIGHLIGHT_YELLOW : "";
+ return colors_enabled() ? ANSI_HIGHLIGHT_YELLOW : "";
}
static inline const char *ansi_highlight_blue(void) {
- return on_tty() ? ANSI_HIGHLIGHT_BLUE : "";
+ return colors_enabled() ? ANSI_HIGHLIGHT_BLUE : "";
}
static inline const char *ansi_normal(void) {
- return on_tty() ? ANSI_NORMAL : "";
+ return colors_enabled() ? ANSI_NORMAL : "";
}
int get_ctty_devnr(pid_t pid, dev_t *d);
diff --git a/src/journal/journalctl.c b/src/journal/journalctl.c
index d009b2e93b..db11421e7a 100644
--- a/src/journal/journalctl.c
+++ b/src/journal/journalctl.c
@@ -2336,7 +2336,7 @@ int main(int argc, char *argv[]) {
flags =
arg_all * OUTPUT_SHOW_ALL |
arg_full * OUTPUT_FULL_WIDTH |
- on_tty() * OUTPUT_COLOR |
+ colors_enabled() * OUTPUT_COLOR |
arg_catalog * OUTPUT_CATALOG |
arg_utc * OUTPUT_UTC;
diff --git a/src/login/loginctl.c b/src/login/loginctl.c
index 816349c559..931b96fe51 100644
--- a/src/login/loginctl.c
+++ b/src/login/loginctl.c
@@ -88,7 +88,7 @@ static OutputFlags get_output_flags(void) {
arg_all * OUTPUT_SHOW_ALL |
arg_full * OUTPUT_FULL_WIDTH |
(!on_tty() || pager_have()) * OUTPUT_FULL_WIDTH |
- on_tty() * OUTPUT_COLOR;
+ colors_enabled() * OUTPUT_COLOR;
}
static int list_sessions(int argc, char *argv[], void *userdata) {
diff --git a/src/machine/machinectl.c b/src/machine/machinectl.c
index 38a75f85d5..fd454310ae 100644
--- a/src/machine/machinectl.c
+++ b/src/machine/machinectl.c
@@ -108,7 +108,7 @@ static OutputFlags get_output_flags(void) {
arg_all * OUTPUT_SHOW_ALL |
arg_full * OUTPUT_FULL_WIDTH |
(!on_tty() || pager_have()) * OUTPUT_FULL_WIDTH |
- on_tty() * OUTPUT_COLOR |
+ colors_enabled() * OUTPUT_COLOR |
!arg_quiet * OUTPUT_WARN_CUTOFF;
}
diff --git a/src/systemctl/systemctl.c b/src/systemctl/systemctl.c
index 3f2c308b8f..eaa38c5985 100644
--- a/src/systemctl/systemctl.c
+++ b/src/systemctl/systemctl.c
@@ -247,7 +247,7 @@ static OutputFlags get_output_flags(void) {
arg_all * OUTPUT_SHOW_ALL |
arg_full * OUTPUT_FULL_WIDTH |
(!on_tty() || pager_have()) * OUTPUT_FULL_WIDTH |
- on_tty() * OUTPUT_COLOR |
+ colors_enabled() * OUTPUT_COLOR |
!arg_quiet * OUTPUT_WARN_CUTOFF;
}