From 6783fd3cef0d6625e8a6d9d42d76042447078401 Mon Sep 17 00:00:00 2001 From: Victoria Dye Date: Fri, 12 Aug 2022 20:10:15 +0000 Subject: [PATCH] builtin/diagnose.c: create 'git diagnose' builtin MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Create a 'git diagnose' builtin to generate a standalone zip archive of repository diagnostics. The "diagnose" functionality was originally implemented for Scalar in aa5c79a331 (scalar: implement `scalar diagnose`, 2022-05-28). However, the diagnostics gathered are not specific to Scalar-cloned repositories and can be useful when diagnosing issues in any Git repository. Helped-by: Ævar Arnfjörð Bjarmason Helped-by: Derrick Stolee Signed-off-by: Victoria Dye Signed-off-by: Junio C Hamano --- .gitignore | 1 + Documentation/git-diagnose.txt | 50 ++++++++++++++++++++++++++++++++++++ Makefile | 1 + builtin.h | 1 + builtin/diagnose.c | 57 ++++++++++++++++++++++++++++++++++++++++++ git.c | 1 + t/t0092-diagnose.sh | 32 ++++++++++++++++++++++++ 7 files changed, 143 insertions(+) create mode 100644 Documentation/git-diagnose.txt create mode 100644 builtin/diagnose.c create mode 100755 t/t0092-diagnose.sh diff --git a/.gitignore b/.gitignore index 42fd7253b4..80b530bbed 100644 --- a/.gitignore +++ b/.gitignore @@ -53,6 +53,7 @@ /git-cvsimport /git-cvsserver /git-daemon +/git-diagnose /git-diff /git-diff-files /git-diff-index diff --git a/Documentation/git-diagnose.txt b/Documentation/git-diagnose.txt new file mode 100644 index 0000000000..ce07dd0725 --- /dev/null +++ b/Documentation/git-diagnose.txt @@ -0,0 +1,50 @@ +git-diagnose(1) +================ + +NAME +---- +git-diagnose - Generate a zip archive of diagnostic information + +SYNOPSIS +-------- +[verse] +'git diagnose' [(-o | --output-directory) ] [(-s | --suffix) ] + +DESCRIPTION +----------- +Collects detailed information about the user's machine, Git client, and +repository state and packages that information into a zip archive. The +generated archive can then, for example, be shared with the Git mailing list to +help debug an issue or serve as a reference for independent debugging. + +The following information is captured in the archive: + + * 'git version --build-options' + * The path to the repository root + * The available disk space on the filesystem + * The name and size of each packfile, including those in alternate object + stores + * The total count of loose objects, as well as counts broken down by + `.git/objects` subdirectory + +This tool differs from linkgit:git-bugreport[1] in that it collects much more +detailed information with a greater focus on reporting the size and data shape +of repository contents. + +OPTIONS +------- +-o :: +--output-directory :: + Place the resulting diagnostics archive in `` instead of the + current directory. + +-s :: +--suffix :: + Specify an alternate suffix for the diagnostics archive name, to create + a file named 'git-diagnostics-'. This should take the + form of a strftime(3) format string; the current local time will be + used. + +GIT +--- +Part of the linkgit:git[1] suite diff --git a/Makefile b/Makefile index ad27a0bd70..9ceaf55582 100644 --- a/Makefile +++ b/Makefile @@ -1154,6 +1154,7 @@ BUILTIN_OBJS += builtin/credential-cache.o BUILTIN_OBJS += builtin/credential-store.o BUILTIN_OBJS += builtin/credential.o BUILTIN_OBJS += builtin/describe.o +BUILTIN_OBJS += builtin/diagnose.o BUILTIN_OBJS += builtin/diff-files.o BUILTIN_OBJS += builtin/diff-index.o BUILTIN_OBJS += builtin/diff-tree.o diff --git a/builtin.h b/builtin.h index 40e9ecc848..8901a34d6b 100644 --- a/builtin.h +++ b/builtin.h @@ -144,6 +144,7 @@ int cmd_credential_cache(int argc, const char **argv, const char *prefix); int cmd_credential_cache_daemon(int argc, const char **argv, const char *prefix); int cmd_credential_store(int argc, const char **argv, const char *prefix); int cmd_describe(int argc, const char **argv, const char *prefix); +int cmd_diagnose(int argc, const char **argv, const char *prefix); int cmd_diff_files(int argc, const char **argv, const char *prefix); int cmd_diff_index(int argc, const char **argv, const char *prefix); int cmd_diff(int argc, const char **argv, const char *prefix); diff --git a/builtin/diagnose.c b/builtin/diagnose.c new file mode 100644 index 0000000000..832493bba6 --- /dev/null +++ b/builtin/diagnose.c @@ -0,0 +1,57 @@ +#include "builtin.h" +#include "parse-options.h" +#include "diagnose.h" + +static const char * const diagnose_usage[] = { + N_("git diagnose [-o|--output-directory ] [-s|--suffix ]"), + NULL +}; + +int cmd_diagnose(int argc, const char **argv, const char *prefix) +{ + struct strbuf zip_path = STRBUF_INIT; + time_t now = time(NULL); + struct tm tm; + char *option_output = NULL; + char *option_suffix = "%Y-%m-%d-%H%M"; + char *prefixed_filename; + + const struct option diagnose_options[] = { + OPT_STRING('o', "output-directory", &option_output, N_("path"), + N_("specify a destination for the diagnostics archive")), + OPT_STRING('s', "suffix", &option_suffix, N_("format"), + N_("specify a strftime format suffix for the filename")), + OPT_END() + }; + + argc = parse_options(argc, argv, prefix, diagnose_options, + diagnose_usage, 0); + + /* Prepare the path to put the result */ + prefixed_filename = prefix_filename(prefix, + option_output ? option_output : ""); + strbuf_addstr(&zip_path, prefixed_filename); + strbuf_complete(&zip_path, '/'); + + strbuf_addstr(&zip_path, "git-diagnostics-"); + strbuf_addftime(&zip_path, option_suffix, localtime_r(&now, &tm), 0, 0); + strbuf_addstr(&zip_path, ".zip"); + + switch (safe_create_leading_directories(zip_path.buf)) { + case SCLD_OK: + case SCLD_EXISTS: + break; + default: + die_errno(_("could not create leading directories for '%s'"), + zip_path.buf); + } + + /* Prepare diagnostics */ + if (create_diagnostics_archive(&zip_path, DIAGNOSE_STATS)) + die_errno(_("unable to create diagnostics archive %s"), + zip_path.buf); + + free(prefixed_filename); + strbuf_release(&zip_path); + return 0; +} diff --git a/git.c b/git.c index e5d62fa5a9..0b9d8ef767 100644 --- a/git.c +++ b/git.c @@ -522,6 +522,7 @@ static struct cmd_struct commands[] = { { "credential-cache--daemon", cmd_credential_cache_daemon }, { "credential-store", cmd_credential_store }, { "describe", cmd_describe, RUN_SETUP }, + { "diagnose", cmd_diagnose, RUN_SETUP_GENTLY }, { "diff", cmd_diff, NO_PARSEOPT }, { "diff-files", cmd_diff_files, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, { "diff-index", cmd_diff_index, RUN_SETUP | NO_PARSEOPT }, diff --git a/t/t0092-diagnose.sh b/t/t0092-diagnose.sh new file mode 100755 index 0000000000..b6923726fd --- /dev/null +++ b/t/t0092-diagnose.sh @@ -0,0 +1,32 @@ +#!/bin/sh + +test_description='git diagnose' + +TEST_PASSES_SANITIZE_LEAK=true +. ./test-lib.sh + +test_expect_success UNZIP 'creates diagnostics zip archive' ' + test_when_finished rm -rf report && + + git diagnose -o report -s test >out && + grep "Available space" out && + + zip_path=report/git-diagnostics-test.zip && + test_path_is_file "$zip_path" && + + # Check zipped archive content + "$GIT_UNZIP" -p "$zip_path" diagnostics.log >out && + test_file_not_empty out && + + "$GIT_UNZIP" -p "$zip_path" packs-local.txt >out && + grep ".git/objects" out && + + "$GIT_UNZIP" -p "$zip_path" objects-local.txt >out && + grep "^Total: [0-9][0-9]*" out && + + # Should not include .git directory contents by default + ! "$GIT_UNZIP" -l "$zip_path" | grep ".git/" + grep "^Total: [0-9][0-9]*" out +' + +test_done -- 2.11.4.GIT