[PATCH v7 12/15] bugreport: count loose objects

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The number of unpacked objects in a user's repository may help us
understand the root of the problem they're seeing, especially if a
command is running unusually slowly.

Helped-by: Johannes Schindelin <Johannes.Schindelin@xxxxxx>
Signed-off-by: Emily Shaffer <emilyshaffer@xxxxxxxxxx>
---
 Documentation/git-bugreport.txt |  1 +
 bugreport.c                     | 52 +++++++++++++++++++++++++++++++++
 2 files changed, 53 insertions(+)

diff --git a/Documentation/git-bugreport.txt b/Documentation/git-bugreport.txt
index 779c9c7fd9..7e1ed44cb4 100644
--- a/Documentation/git-bugreport.txt
+++ b/Documentation/git-bugreport.txt
@@ -32,6 +32,7 @@ The following information is captured automatically:
  - $SHELL
  - Selected config values
  - A list of enabled hooks
+ - The number of loose objects in the repository
 
 OPTIONS
 -------
diff --git a/bugreport.c b/bugreport.c
index 7e6147a935..f5201ce416 100644
--- a/bugreport.c
+++ b/bugreport.c
@@ -10,6 +10,7 @@
 #include "bugreport-config-safelist.h"
 #include "khash.h"
 #include "run-command.h"
+#include "object-store.h"
 
 static void get_git_remote_https_version_info(struct strbuf *version_info)
 {
@@ -128,6 +129,54 @@ static void get_populated_hooks(struct strbuf *hook_info, int nongit)
 	}
 }
 
+static int loose_object_cb(const struct object_id *oid, const char *path,
+			   void *data) {
+	int *loose_object_count = data;
+
+	if (loose_object_count) {
+		(*loose_object_count)++;
+		return 0;
+	}
+
+	return 1;
+}
+
+static void get_loose_object_summary(struct strbuf *obj_info, int nongit) {
+
+	int local_loose_object_count = 0, total_loose_object_count = 0;
+	int local_count_questionable = 0, total_count_questionable = 0;
+
+	if (nongit) {
+		strbuf_addstr(obj_info,
+			"not run from a git repository - no objects to show\n");
+		return;
+	}
+
+	local_count_questionable = for_each_loose_object(
+					loose_object_cb,
+					&local_loose_object_count,
+					FOR_EACH_OBJECT_LOCAL_ONLY);
+
+	total_count_questionable = for_each_loose_object(
+					loose_object_cb,
+					&total_loose_object_count,
+					0);
+
+	strbuf_addf(obj_info, "%d local loose objects%s\n",
+		    local_loose_object_count,
+		    local_count_questionable ? " (problem during count)" : "");
+
+	strbuf_addf(obj_info, "%d alternate loose objects%s\n",
+		    total_loose_object_count - local_loose_object_count,
+		    (local_count_questionable || total_count_questionable)
+			? " (problem during count)"
+			: "");
+
+	strbuf_addf(obj_info, "%d total loose objects%s\n",
+		    total_loose_object_count,
+		    total_count_questionable ? " (problem during count)" : "");
+}
+
 static const char * const bugreport_usage[] = {
 	N_("git bugreport [-o|--output-directory <file>] [-s|--suffix <format>]"),
 	NULL
@@ -219,6 +268,9 @@ int cmd_main(int argc, const char **argv)
 	get_header(&buffer, "Enabled Hooks");
 	get_populated_hooks(&buffer, nongit_ok);
 
+	get_header(&buffer, "Loose Object Counts");
+	get_loose_object_summary(&buffer, nongit_ok);
+
 	report = fopen_for_writing(report_path.buf);
 
 	if (report == NULL) {
-- 
2.25.0.265.gbab2e86ba0-goog




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