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-rw-r--r--run-command.c88
1 files changed, 87 insertions, 1 deletions
diff --git a/run-command.c b/run-command.c
index 31fc5ea86e..a483d5904a 100644
--- a/run-command.c
+++ b/run-command.c
@@ -6,6 +6,7 @@
#include "thread-utils.h"
#include "strbuf.h"
#include "string-list.h"
+#include "quote.h"
void child_process_init(struct child_process *child)
{
@@ -556,6 +557,90 @@ static int wait_or_whine(pid_t pid, const char *argv0, int in_signal)
return code;
}
+static void trace_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, 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_add(&key, *e, equals - *e);
+ string_list_insert(&envs, key.buf)->util = equals + 1;
+ } else {
+ string_list_insert(&envs, *e)->util = NULL;
+ }
+ strbuf_release(&key);
+ }
+
+ /* "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 || !getenv(var))
+ continue;
+
+ 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 *oldval;
+
+ if (!val)
+ continue;
+
+ oldval = getenv(var);
+ if (oldval && !strcmp(val, oldval))
+ continue;
+
+ strbuf_addf(dst, " %s=", var);
+ sq_quote_buf_pretty(dst, val);
+ }
+ string_list_clear(&envs, 0);
+}
+
+static void trace_run_command(const struct child_process *cp)
+{
+ struct strbuf buf = STRBUF_INIT;
+
+ if (!trace_want(&trace_default_key))
+ return;
+
+ strbuf_addf(&buf, "trace: run_command:");
+ if (cp->dir) {
+ strbuf_addstr(&buf, " cd ");
+ sq_quote_buf_pretty(&buf, cp->dir);
+ strbuf_addch(&buf, ';');
+ }
+ /*
+ * The caller is responsible for initializing cp->env from
+ * cp->env_array if needed. We only check one place.
+ */
+ if (cp->env)
+ trace_add_env(&buf, cp->env);
+ if (cp->git_cmd)
+ strbuf_addstr(&buf, " git");
+ sq_quote_argv_pretty(&buf, cp->argv);
+
+ trace_printf("%s", buf.buf);
+ strbuf_release(&buf);
+}
+
int start_command(struct child_process *cmd)
{
int need_in, need_out, need_err;
@@ -624,7 +709,8 @@ fail_pipe:
cmd->err = fderr[0];
}
- trace_argv_printf(cmd->argv, "trace: run_command:");
+ trace_run_command(cmd);
+
fflush(NULL);
#ifndef GIT_WINDOWS_NATIVE