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-rw-r--r--compat/linux/procinfo.c55
-rw-r--r--compat/mingw.c21
-rw-r--r--compat/stub/procinfo.c11
3 files changed, 87 insertions, 0 deletions
diff --git a/compat/linux/procinfo.c b/compat/linux/procinfo.c
new file mode 100644
index 0000000000..578fed4cd3
--- /dev/null
+++ b/compat/linux/procinfo.c
@@ -0,0 +1,55 @@
+#include "cache.h"
+
+#include "strbuf.h"
+#include "strvec.h"
+#include "trace2.h"
+
+static void get_ancestry_names(struct strvec *names)
+{
+ /*
+ * NEEDSWORK: We could gather the entire pstree into an array to match
+ * functionality with compat/win32/trace2_win32_process_info.c.
+ * To do so, we may want to examine /proc/<pid>/stat. For now, just
+ * gather the immediate parent name which is readily accessible from
+ * /proc/$(getppid())/comm.
+ */
+ struct strbuf procfs_path = STRBUF_INIT;
+ struct strbuf name = STRBUF_INIT;
+
+ /* try to use procfs if it's present. */
+ strbuf_addf(&procfs_path, "/proc/%d/comm", getppid());
+ if (strbuf_read_file(&name, procfs_path.buf, 0)) {
+ strbuf_release(&procfs_path);
+ strbuf_trim_trailing_newline(&name);
+ strvec_push(names, strbuf_detach(&name, NULL));
+ }
+
+ return;
+ /* NEEDSWORK: add non-procfs-linux implementations here */
+}
+
+void trace2_collect_process_info(enum trace2_process_info_reason reason)
+{
+ if (!trace2_is_enabled())
+ return;
+
+ /* someday we may want to write something extra here, but not today */
+ if (reason == TRACE2_PROCESS_INFO_EXIT)
+ return;
+
+ if (reason == TRACE2_PROCESS_INFO_STARTUP) {
+ /*
+ * NEEDSWORK: we could do the entire ptree in an array instead,
+ * see compat/win32/trace2_win32_process_info.c.
+ */
+ struct strvec names = STRVEC_INIT;
+
+ get_ancestry_names(&names);
+
+ if (names.nr)
+ trace2_cmd_ancestry(names.v);
+ strvec_clear(&names);
+ }
+
+ return;
+}
diff --git a/compat/mingw.c b/compat/mingw.c
index aa647b367b..9e0cd1e097 100644
--- a/compat/mingw.c
+++ b/compat/mingw.c
@@ -341,6 +341,27 @@ int mingw_rmdir(const char *pathname)
{
int ret, tries = 0;
wchar_t wpathname[MAX_PATH];
+ struct stat st;
+
+ /*
+ * Contrary to Linux' `rmdir()`, Windows' _wrmdir() and _rmdir()
+ * (and `RemoveDirectoryW()`) will attempt to remove the target of a
+ * symbolic link (if it points to a directory).
+ *
+ * This behavior breaks the assumption of e.g. `remove_path()` which
+ * upon successful deletion of a file will attempt to remove its parent
+ * directories recursively until failure (which usually happens when
+ * the directory is not empty).
+ *
+ * Therefore, before calling `_wrmdir()`, we first check if the path is
+ * a symbolic link. If it is, we exit and return the same error as
+ * Linux' `rmdir()` would, i.e. `ENOTDIR`.
+ */
+ if (!mingw_lstat(pathname, &st) && S_ISLNK(st.st_mode)) {
+ errno = ENOTDIR;
+ return -1;
+ }
+
if (xutftowcs_path(wpathname, pathname) < 0)
return -1;
diff --git a/compat/stub/procinfo.c b/compat/stub/procinfo.c
new file mode 100644
index 0000000000..12c0a23c9e
--- /dev/null
+++ b/compat/stub/procinfo.c
@@ -0,0 +1,11 @@
+#include "git-compat-util.h"
+
+#include "trace2.h"
+
+/*
+ * Stub. See sample implementations in compat/linux/procinfo.c and
+ * compat/win32/trace2_win32_process_info.c.
+ */
+void trace2_collect_process_info(enum trace2_process_info_reason reason)
+{
+}