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Wed, 7 Feb 2024 20:59:33 +0300 (MSK) Received: from tls.msk.ru (mjt.wg.tls.msk.ru [192.168.177.130]) by tsrv.corpit.ru (Postfix) with SMTP id 3FC36763A2; Wed, 7 Feb 2024 20:58:21 +0300 (MSK) Received: (nullmailer pid 296925 invoked by uid 1000); Wed, 07 Feb 2024 17:58:19 -0000 From: Michael Tokarev To: qemu-devel@nongnu.org, qemu-block@nongnu.org Cc: Michael Tokarev Subject: [PATCH 3/8] qemu-img: factor out parse_output_format() and use it in the code Date: Wed, 7 Feb 2024 20:58:12 +0300 Message-Id: <0ac80579cb2fb3138beaf88fb3261e05a6b81800.1707328606.git.mjt@tls.msk.ru> X-Mailer: git-send-email 2.39.2 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=86.62.121.231; envelope-from=mjt@tls.msk.ru; helo=isrv.corpit.ru X-Spam_score_int: -68 X-Spam_score: -6.9 X-Spam_bar: ------ X-Spam_report: (-6.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_HI=-5, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1707328805491100002 Content-Type: text/plain; charset="utf-8" Use common code and simplify error message Signed-off-by: Michael Tokarev --- qemu-img.c | 63 ++++++++++++++++-------------------------------------- 1 file changed, 18 insertions(+), 45 deletions(-) diff --git a/qemu-img.c b/qemu-img.c index b94622fadb..f851b290cc 100644 --- a/qemu-img.c +++ b/qemu-img.c @@ -136,6 +136,17 @@ void cmd_help(const char *cmdname, const char *syntax, exit(EXIT_SUCCESS); } =20 +static OutputFormat parse_output_format(const char *cmdname, const char *a= rg) +{ + if (!strcmp(arg, "json")) { + return OFORMAT_JSON; + } else if (!strcmp(arg, "human")) { + return OFORMAT_HUMAN; + } else { + error_exit(cmdname, "--output expects 'human' or 'json' not '%s'",= arg); + } +} + /* Please keep in synch with docs/tools/qemu-img.rst */ static G_NORETURN void help(void) @@ -751,7 +762,7 @@ static int img_check(const char *cmdname, int argc, cha= r **argv) { int c, ret; OutputFormat output_format =3D OFORMAT_HUMAN; - const char *filename, *fmt, *output, *cache; + const char *filename, *fmt, *cache; BlockBackend *blk; BlockDriverState *bs; int fix =3D 0; @@ -763,7 +774,6 @@ static int img_check(const char *cmdname, int argc, cha= r **argv) bool force_share =3D false; =20 fmt =3D NULL; - output =3D NULL; cache =3D BDRV_DEFAULT_CACHE; =20 for(;;) { @@ -809,7 +819,7 @@ static int img_check(const char *cmdname, int argc, cha= r **argv) } break; case OPTION_OUTPUT: - output =3D optarg; + output_format =3D parse_output_format(cmdname, optarg); break; case 'T': cache =3D optarg; @@ -833,15 +843,6 @@ static int img_check(const char *cmdname, int argc, ch= ar **argv) } filename =3D argv[optind++]; =20 - if (output && !strcmp(output, "json")) { - output_format =3D OFORMAT_JSON; - } else if (output && !strcmp(output, "human")) { - output_format =3D OFORMAT_HUMAN; - } else if (output) { - error_report("--output must be used with human or json as argument= ."); - return 1; - } - ret =3D bdrv_parse_cache_mode(cache, &flags, &writethrough); if (ret < 0) { error_report("Invalid source cache option: %s", cache); @@ -3035,13 +3036,12 @@ static int img_info(const char *cmdname, int argc, = char **argv) int c; OutputFormat output_format =3D OFORMAT_HUMAN; bool chain =3D false; - const char *filename, *fmt, *output; + const char *filename, *fmt; BlockGraphInfoList *list; bool image_opts =3D false; bool force_share =3D false; =20 fmt =3D NULL; - output =3D NULL; for(;;) { int option_index =3D 0; static const struct option long_options[] =3D { @@ -3076,7 +3076,7 @@ static int img_info(const char *cmdname, int argc, ch= ar **argv) force_share =3D true; break; case OPTION_OUTPUT: - output =3D optarg; + output_format =3D parse_output_format(cmdname, optarg); break; case OPTION_BACKING_CHAIN: chain =3D true; @@ -3094,15 +3094,6 @@ static int img_info(const char *cmdname, int argc, c= har **argv) } filename =3D argv[optind++]; =20 - if (output && !strcmp(output, "json")) { - output_format =3D OFORMAT_JSON; - } else if (output && !strcmp(output, "human")) { - output_format =3D OFORMAT_HUMAN; - } else if (output) { - error_report("--output must be used with human or json as argument= ."); - return 1; - } - list =3D collect_image_info_list(image_opts, filename, fmt, chain, force_share); if (!list) { @@ -3261,7 +3252,7 @@ static int img_map(const char *cmdname, int argc, cha= r **argv) OutputFormat output_format =3D OFORMAT_HUMAN; BlockBackend *blk; BlockDriverState *bs; - const char *filename, *fmt, *output; + const char *filename, *fmt; int64_t length; MapEntry curr =3D { .length =3D 0 }, next; int ret =3D 0; @@ -3271,7 +3262,6 @@ static int img_map(const char *cmdname, int argc, cha= r **argv) int64_t max_length =3D -1; =20 fmt =3D NULL; - output =3D NULL; for (;;) { int option_index =3D 0; static const struct option long_options[] =3D { @@ -3307,7 +3297,7 @@ static int img_map(const char *cmdname, int argc, cha= r **argv) force_share =3D true; break; case OPTION_OUTPUT: - output =3D optarg; + output_format =3D parse_output_format(cmdname, optarg); break; case 's': start_offset =3D cvtnum("start offset", optarg); @@ -3334,15 +3324,6 @@ static int img_map(const char *cmdname, int argc, ch= ar **argv) } filename =3D argv[optind]; =20 - if (output && !strcmp(output, "json")) { - output_format =3D OFORMAT_JSON; - } else if (output && !strcmp(output, "human")) { - output_format =3D OFORMAT_HUMAN; - } else if (output) { - error_report("--output must be used with human or json as argument= ."); - return 1; - } - blk =3D img_open(image_opts, filename, fmt, 0, false, false, force_sha= re); if (!blk) { return 1; @@ -5445,15 +5426,7 @@ static int img_measure(const char *cmdname, int argc= , char **argv) image_opts =3D true; break; case OPTION_OUTPUT: - if (!strcmp(optarg, "json")) { - output_format =3D OFORMAT_JSON; - } else if (!strcmp(optarg, "human")) { - output_format =3D OFORMAT_HUMAN; - } else { - error_report("--output must be used with human or json " - "as argument."); - goto out; - } + output_format =3D parse_output_format(cmdname, optarg); break; case OPTION_SIZE: { --=20 2.39.2