v4:
- incorporates Jeff patches and moves them on top
- removes strbuf release from print_trace_line
- prints 'unset a b c' instead of 'unset a; unset b; unset c'
- squashes v3 3/4 and 4/4 and Junio's patch into 6/7
- adds tests
- cwd is separated in 7/7
interdiff with what's on 'pu':
diff --git a/t/helper/test-run-command.c b/t/helper/test-run-command.c
index d24d157379..0ab71f14fb 100644
--- a/t/helper/test-run-command.c
+++ b/t/helper/test-run-command.c
@@ -56,6 +56,10 @@ int cmd_main(int argc, const char **argv)
if (argc < 3)
return 1;
+ while (!strcmp(argv[1], "env")) {
+ argv_array_push(&proc.env_array, argv[2]);
+ argv += 2;
+ }
proc.argv = (const char **)argv + 2;
if (!strcmp(argv[1], "start-command-ENOENT")) {
diff --git a/t/t0061-run-command.sh b/t/t0061-run-command.sh
index e4739170aa..e6208316c3 100755
--- a/t/t0061-run-command.sh
+++ b/t/t0061-run-command.sh
@@ -141,4 +141,26 @@ test_expect_success 'run_command outputs ' '
test_cmp expect actual
'
+test_trace() {
+ local expected="$1"
+ shift
+ GIT_TRACE=1 test-run-command "$@" run-command true 2>&1 >/dev/null | \
+ sed 's/.* run_command: //' >actual &&
+ echo "$expected true" >expected &&
+ test_cmp expected actual
+}
+
+test_expect_success 'GIT_TRACE with environment variables' '
+ test_trace "abc=1 def=2" env abc=1 env def=2 &&
+ test_trace "abc=2" env abc env abc=1 env abc=2 &&
+ test_trace "abc=2" env abc env abc=2 &&
+ abc=1 test_trace "def=1" env abc=1 env def=1 &&
+ abc=1 test_trace "def=1" env abc env abc=1 env def=1 &&
+ test_trace "def=1" env non-exist env def=1 &&
+ test_trace "abc=2" env abc=1 env abc env abc=2 &&
+ abc=1 def=2 test_trace "unset abc def;" env abc env def &&
+ abc=1 def=2 test_trace "unset def; abc=3" env abc env def env abc=3 &&
+ abc=1 test_trace "unset abc;" env abc=2 env abc
+'
+
test_done
diff --git a/trace.c b/trace.c
index 9f49bcdd03..4bfd3fce10 100644
--- a/trace.c
+++ b/trace.c
@@ -132,7 +132,6 @@ static void print_trace_line(struct trace_key *key, struct strbuf *buf)
{
strbuf_complete_line(buf);
trace_write(key, buf->buf, buf->len);
- strbuf_release(buf);
}
static void trace_vprintf_fl(const char *file, int line, struct trace_key *key,
@@ -145,6 +144,7 @@ static void trace_vprintf_fl(const char *file, int line, struct trace_key *key,
strbuf_vaddf(&buf, format, ap);
print_trace_line(key, &buf);
+ strbuf_release(&buf);
}
static void trace_argv_vprintf_fl(const char *file, int line,
@@ -160,6 +160,7 @@ static void trace_argv_vprintf_fl(const char *file, int line,
sq_quote_argv_pretty(&buf, argv);
print_trace_line(&trace_default_key, &buf);
+ strbuf_release(&buf);
}
void trace_strbuf_fl(const char *file, int line, struct trace_key *key,
@@ -172,6 +173,7 @@ void trace_strbuf_fl(const char *file, int line, struct trace_key *key,
strbuf_addbuf(&buf, data);
print_trace_line(key, &buf);
+ strbuf_release(&buf);
}
static void trace_performance_vprintf_fl(const char *file, int line,
@@ -191,6 +193,7 @@ static void trace_performance_vprintf_fl(const char *file, int line,
}
print_trace_line(&trace_perf_key, &buf);
+ strbuf_release(&buf);
}
#ifndef HAVE_VARIADIC_MACROS
@@ -272,17 +275,17 @@ void trace_performance_fl(const char *file, int line, uint64_t nanos,
#endif /* HAVE_VARIADIC_MACROS */
-static void concatenate_env(struct strbuf *dst, const char *const *deltaenv)
+static void add_env(struct strbuf *dst, const char *const *deltaenv)
{
struct string_list envs = STRING_LIST_INIT_DUP;
const char *const *e;
int i;
+ int printed_unset = 0;
- /* Last one wins... */
+ /* Last one wins, see run-command.c:prep_childenv() for context */
for (e = deltaenv; e && *e; e++) {
struct strbuf key = STRBUF_INIT;
char *equals = strchr(*e, '=');
-
if (equals) {
strbuf_reset(&key);
strbuf_add(&key, *e, equals - *e);
@@ -290,30 +293,39 @@ static void concatenate_env(struct strbuf *dst, const char *const *deltaenv)
} else {
string_list_insert(&envs, *e)->util = NULL;
}
+ strbuf_release(&key);
}
- /* series of "unset X; unset Y;..." */
+ /* "unset X Y...;" */
for (i = 0; i < envs.nr; i++) {
const char *var = envs.items[i].string;
const char *val = envs.items[i].util;
- if (val)
+ if (val || !getenv(var))
continue;
- if (getenv(var))
- strbuf_addf(dst, " unset %s;", var);
+
+ if (!printed_unset) {
+ strbuf_addstr(dst, " unset");
+ printed_unset = 1;
+ }
+ strbuf_addf(dst, " %s", var);
}
+ if (printed_unset)
+ strbuf_addch(dst, ';');
/* ... followed by "A=B C=D ..." */
for (i = 0; i < envs.nr; i++) {
const char *var = envs.items[i].string;
const char *val = envs.items[i].util;
- const char *old_value;
+ const char *oldval;
if (!val)
continue;
- old_value = getenv(var);
- if (old_value && !strcmp(old_value, val))
+
+ oldval = getenv(var);
+ if (oldval && !strcmp(val, oldval))
continue;
+
strbuf_addf(dst, " %s=", var);
sq_quote_buf_pretty(dst, val);
}
@@ -328,8 +340,6 @@ void trace_run_command(const struct child_process *cp)
&trace_default_key, &buf))
return;
- strbuf_grow(&buf, 255);
-
strbuf_addf(&buf, "trace: run_command:");
if (cp->dir) {
@@ -343,7 +353,7 @@ void trace_run_command(const struct child_process *cp)
* cp->env_array if needed. We only check one place.
*/
if (cp->env)
- concatenate_env(&buf, cp->env);
+ add_env(&buf, cp->env);
if (cp->git_cmd)
strbuf_addstr(&buf, " git");
--
2.15.1.600.g899a5f85c6
