The highlighting is done on the client-side. Supported keywords are
"error", "warning", "hint" and "success".
The colorization is controlled with the config setting "color.remote".
Co-authored-by: Duy Nguyen <pclouds@xxxxxxxxx>
Signed-off-by: Han-Wen Nienhuys <hanwen@xxxxxxxxxx>
---
Documentation/config.txt | 9 +++
help.c | 1 +
help.h | 1 +
sideband.c | 113 +++++++++++++++++++++++++---
t/t5409-colorize-remote-messages.sh | 47 ++++++++++++
5 files changed, 162 insertions(+), 9 deletions(-)
create mode 100644 t/t5409-colorize-remote-messages.sh
diff --git a/Documentation/config.txt b/Documentation/config.txt
index 43b2de7b5..0783323be 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -1229,6 +1229,15 @@ color.push::
color.push.error::
Use customized color for push errors.
+color.remote::
+ A boolean to enable/disable colored remote output. If unset,
+ then the value of `color.ui` is used (`auto` by default).
+
+color.remote.<slot>::
+ Use customized color for each remote keywords. `<slot>` may be
+ `hint`, `warning`, `success` or `error` which match the
+ corresponding keyword.
+
color.showBranch::
A boolean to enable/disable color in the output of
linkgit:git-show-branch[1]. May be set to `always`,
diff --git a/help.c b/help.c
index 3ebf0568d..b6cafcfc0 100644
--- a/help.c
+++ b/help.c
@@ -425,6 +425,7 @@ void list_config_help(int for_human)
{ "color.diff", "<slot>", list_config_color_diff_slots },
{ "color.grep", "<slot>", list_config_color_grep_slots },
{ "color.interactive", "<slot>", list_config_color_interactive_slots },
+ { "color.remote", "<slot>", list_config_color_sideband_slots },
{ "color.status", "<slot>", list_config_color_status_slots },
{ "fsck", "<msg-id>", list_config_fsck_msg_ids },
{ "receive.fsck", "<msg-id>", list_config_fsck_msg_ids },
diff --git a/help.h b/help.h
index f8b15323a..9eab6a3f8 100644
--- a/help.h
+++ b/help.h
@@ -83,6 +83,7 @@ void list_config_color_diff_slots(struct string_list *list, const char *prefix);
void list_config_color_grep_slots(struct string_list *list, const char *prefix);
void list_config_color_interactive_slots(struct string_list *list, const char *prefix);
void list_config_color_status_slots(struct string_list *list, const char *prefix);
+void list_config_color_sideband_slots(struct string_list *list, const char *prefix);
void list_config_fsck_msg_ids(struct string_list *list, const char *prefix);
#endif /* HELP_H */
diff --git a/sideband.c b/sideband.c
index 325bf0e97..0d67583ec 100644
--- a/sideband.c
+++ b/sideband.c
@@ -1,6 +1,97 @@
#include "cache.h"
+#include "color.h"
+#include "config.h"
#include "pkt-line.h"
#include "sideband.h"
+#include "help.h"
+
+struct kwtable {
+ /*
+ * We use keyword as config key so it can't contain funny chars like
+ * spaces. When we do that, we need a separate field for slot name in
+ * load_sideband_colors().
+ */
+ const char *keyword;
+ char color[COLOR_MAXLEN];
+};
+
+static struct kwtable keywords[] = {
+ { "hint", GIT_COLOR_YELLOW },
+ { "warning", GIT_COLOR_BOLD_YELLOW },
+ { "success", GIT_COLOR_BOLD_GREEN },
+ { "error", GIT_COLOR_BOLD_RED },
+};
+
+static int sideband_use_color = -1;
+
+static void load_sideband_colors(void)
+{
+ const char *key = "color.remote";
+ struct strbuf sb = STRBUF_INIT;
+ char *value;
+ int i;
+
+ if (sideband_use_color >= 0)
+ return;
+
+ if (!git_config_get_string(key, &value))
+ sideband_use_color = git_config_colorbool(key, value);
+
+ for (i = 0; i < ARRAY_SIZE(keywords); i++) {
+ strbuf_reset(&sb);
+ strbuf_addf(&sb, "%s.%s", key, keywords[i].keyword);
+ if (git_config_get_string(sb.buf, &value))
+ continue;
+ if (color_parse(value, keywords[i].color))
+ die(_("expecting a color: %s"), value);
+ }
+ strbuf_release(&sb);
+}
+
+void list_config_color_sideband_slots(struct string_list *list, const char *prefix)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(keywords); i++)
+ list_config_item(list, prefix, keywords[i].keyword);
+}
+
+/*
+ * Optionally highlight some keywords in remote output if they appear at the
+ * start of the line.
+ */
+void maybe_colorize_sideband(struct strbuf *dest, const char *src, int n)
+{
+ int i;
+
+ load_sideband_colors();
+ if (!want_color_stderr(sideband_use_color)) {
+ strbuf_add(dest, src, n);
+ return;
+ }
+
+ while (isspace(*src)) {
+ strbuf_addch(dest, *src);
+ src++;
+ n--;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(keywords); i++) {
+ struct kwtable* p = keywords + i;
+ int len = strlen(p->keyword);
+ if (!strncasecmp(p->keyword, src, len) && !isalnum(src[len])) {
+ strbuf_addstr(dest, p->color);
+ strbuf_add(dest, src, len);
+ strbuf_addstr(dest, GIT_COLOR_RESET);
+ n -= len;
+ src += len;
+ break;
+ }
+ }
+
+ strbuf_add(dest, src, n);
+}
+
/*
* Receive multiplexed output stream over git native protocol.
@@ -48,8 +139,10 @@ int recv_sideband(const char *me, int in_stream, int out)
len--;
switch (band) {
case 3:
- strbuf_addf(&outbuf, "%s%s%s", outbuf.len ? "\n" : "",
- DISPLAY_PREFIX, buf + 1);
+ strbuf_addf(&outbuf, "%s%s", outbuf.len ? "\n" : "",
+ DISPLAY_PREFIX);
+ maybe_colorize_sideband(&outbuf, buf + 1, len);
+
retval = SIDEBAND_REMOTE_ERROR;
break;
case 2:
@@ -69,20 +162,22 @@ int recv_sideband(const char *me, int in_stream, int out)
if (!outbuf.len)
strbuf_addstr(&outbuf, DISPLAY_PREFIX);
if (linelen > 0) {
- strbuf_addf(&outbuf, "%.*s%s%c",
- linelen, b, suffix, *brk);
- } else {
- strbuf_addch(&outbuf, *brk);
+ maybe_colorize_sideband(&outbuf, b, linelen);
+ strbuf_addstr(&outbuf, suffix);
}
+
+ strbuf_addch(&outbuf, *brk);
xwrite(2, outbuf.buf, outbuf.len);
strbuf_reset(&outbuf);
b = brk + 1;
}
- if (*b)
- strbuf_addf(&outbuf, "%s%s", outbuf.len ?
- "" : DISPLAY_PREFIX, b);
+ if (*b) {
+ strbuf_addstr(&outbuf, outbuf.len ?
+ "" : DISPLAY_PREFIX);
+ maybe_colorize_sideband(&outbuf, b, strlen(b));
+ }
break;
case 1:
write_or_die(out, buf + 1, len);
diff --git a/t/t5409-colorize-remote-messages.sh b/t/t5409-colorize-remote-messages.sh
new file mode 100644
index 000000000..4e1bd421f
--- /dev/null
+++ b/t/t5409-colorize-remote-messages.sh
@@ -0,0 +1,47 @@
+#!/bin/sh
+
+test_description='remote messages are colorized on the client'
+
+. ./test-lib.sh
+
+test_expect_success 'setup' '
+ mkdir .git/hooks &&
+ cat << EOF > .git/hooks/update &&
+#!/bin/sh
+echo error: error
+echo hint: hint
+echo success: success
+echo warning: warning
+echo prefixerror: error
+exit 0
+EOF
+ chmod +x .git/hooks/update &&
+ echo 1 >file &&
+ git add file &&
+ git commit -m 1 &&
+ git clone . child &&
+ cd child &&
+ echo 2 > file &&
+ git commit -a -m 2
+'
+
+test_expect_success 'push' '
+ git -c color.remote=always push -f origin HEAD:refs/heads/newbranch 2>output &&
+ test_decode_color <output >decoded &&
+ grep "<BOLD;RED>error<RESET>:" decoded &&
+ grep "<YELLOW>hint<RESET>:" decoded &&
+ grep "<BOLD;GREEN>success<RESET>:" decoded &&
+ grep "<BOLD;YELLOW>warning<RESET>:" decoded &&
+ grep "prefixerror: error" decoded
+'
+
+test_expect_success 'push with customized color' '
+ git -c color.remote=always -c color.remote.error=white push -f origin HEAD:refs/heads/newbranch2 2>output &&
+ test_decode_color <output >decoded &&
+ grep "<WHITE>error<RESET>:" decoded &&
+ grep "<YELLOW>hint<RESET>:" decoded &&
+ grep "<BOLD;GREEN>success<RESET>:" decoded &&
+ grep "<BOLD;YELLOW>warning<RESET>:" decoded
+'
+
+test_done
--
2.18.0.345.g5c9ce644c3-goog
