builtin/bugreport.c: create '--diagnose' option

Create a '--diagnose' option for 'git bugreport' to collect additional
information about the repository and write it to a zipped archive.

The '--diagnose' option behaves effectively as an alias for simultaneously
running 'git bugreport' and 'git diagnose'. In the documentation, users are
explicitly recommended to attach the diagnostics alongside a bug report to
provide additional context to readers, ideally reducing some back-and-forth
between reporters and those debugging the issue.

Note that '--diagnose' may take an optional string arg (either 'stats' or
'all'). If specified without the arg, the behavior corresponds to running
'git diagnose' without '--mode'. As with 'git diagnose', this default is
intended to help reduce unintentional leaking of sensitive information).
Users can also explicitly specify '--diagnose=(stats|all)' to generate the
respective archive created by 'git diagnose --mode=(stats|all)'.

Suggested-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Helped-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Victoria Dye <vdye@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 24 insertions, 3 deletions

diff --git a/builtin/bugreport.c b/builtin/bugreport.c
index 9de32bc96e..530895be55 100644
--- a/builtin/bugreport.c
+++ b/builtin/bugreport.c
@@ -5,6 +5,7 @@
 #include "compat/compiler.h"
 #include "hook.h"
 #include "hook-list.h"
+#include "diagnose.h"
 
 
 static void get_system_info(struct strbuf *sys_info)
@@ -59,7 +60,7 @@ static void get_populated_hooks(struct strbuf *hook_info, int nongit)
 }
 
 static const char * const bugreport_usage[] = {
-	N_("git bugreport [-o|--output-directory <file>] [-s|--suffix <format>]"),
+	N_("git bugreport [-o|--output-directory <file>] [-s|--suffix <format>] [--diagnose[=<mode>]"),
 	NULL
 };
 
@@ -98,16 +99,21 @@ int cmd_bugreport(int argc, const char **argv, const char *prefix)
 	int report = -1;
 	time_t now = time(NULL);
 	struct tm tm;
+	enum diagnose_mode diagnose = DIAGNOSE_NONE;
 	char *option_output = NULL;
 	char *option_suffix = "%Y-%m-%d-%H%M";
 	const char *user_relative_path = NULL;
 	char *prefixed_filename;
+	size_t output_path_len;
 
 	const struct option bugreport_options[] = {
+		OPT_CALLBACK_F(0, "diagnose", &diagnose, N_("mode"),
+			       N_("create an additional zip archive of detailed diagnostics (default 'stats')"),
+			       PARSE_OPT_OPTARG, option_parse_diagnose),
 		OPT_STRING('o', "output-directory", &option_output, N_("path"),
-			   N_("specify a destination for the bugreport file")),
+			   N_("specify a destination for the bugreport file(s)")),
 		OPT_STRING('s', "suffix", &option_suffix, N_("format"),
-			   N_("specify a strftime format suffix for the filename")),
+			   N_("specify a strftime format suffix for the filename(s)")),
 		OPT_END()
 	};
 
@@ -119,6 +125,7 @@ int cmd_bugreport(int argc, const char **argv, const char *prefix)
 					    option_output ? option_output : "");
 	strbuf_addstr(&report_path, prefixed_filename);
 	strbuf_complete(&report_path, '/');
+	output_path_len = report_path.len;
 
 	strbuf_addstr(&report_path, "git-bugreport-");
 	strbuf_addftime(&report_path, option_suffix, localtime_r(&now, &tm), 0, 0);
@@ -133,6 +140,20 @@ int cmd_bugreport(int argc, const char **argv, const char *prefix)
 		    report_path.buf);
 	}
 
+	/* Prepare diagnostics, if requested */
+	if (diagnose != DIAGNOSE_NONE) {
+		struct strbuf zip_path = STRBUF_INIT;
+		strbuf_add(&zip_path, report_path.buf, output_path_len);
+		strbuf_addstr(&zip_path, "git-diagnostics-");
+		strbuf_addftime(&zip_path, option_suffix, localtime_r(&now, &tm), 0, 0);
+		strbuf_addstr(&zip_path, ".zip");
+
+		if (create_diagnostics_archive(&zip_path, diagnose))
+			die_errno(_("unable to create diagnostics archive %s"), zip_path.buf);
+
+		strbuf_release(&zip_path);
+	}
+
 	/* Prepare the report contents */
 	get_bug_template(&buffer);