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[92.243.24.172]) by mx.google.com with ESMTPS id dk2sm32206242qab.12.2012.02.05.23.54.04 (version=SSLv3 cipher=OTHER); Sun, 05 Feb 2012 23:54:05 -0800 (PST) From: Jani Nikula To: Austin Clements Subject: Re: [PATCH 1/2] cli: convert "notmuch show" to use the new argument parser In-Reply-To: <20120206041205.GP10898@mit.edu> References: <20120206041205.GP10898@mit.edu> User-Agent: Notmuch/0.10.2+187~g43d4f26 (http://notmuchmail.org) Emacs/23.1.1 (i686-pc-linux-gnu) Date: Mon, 06 Feb 2012 07:54:02 +0000 Message-ID: <87ty34bdnp.fsf@nikula.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: notmuch@notmuchmail.org X-BeenThere: notmuch@notmuchmail.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: "Use and development of the notmuch mail system." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 06 Feb 2012 07:54:08 -0000 On Sun, 5 Feb 2012 23:12:05 -0500, Austin Clements wrote: > Yikes. I don't envy you this patch. Two minor nits, otherwise this > and the next patch LGTM. Thanks for the review. I'll roll another version, I think it will be better with your suggestions incorporated. > Quoth Jani Nikula on Feb 04 at 12:41 am: > > Use the new notmuch argument parser to handle arguments in "notmuch > > show". There are two corner case functional changes: > > > > 1) Also set params.raw = 1 when defaulting to raw format when part is > > requested but format is not specified. > > Huh. So "notmuch show --part=0 " was broken before. Hmm, yes, it seems so. Do you think I should make this a separate fix? BTW an alternative would be to require setting --format if --part is specified, and not adapt the default format depending on --part. > > 2) Do not set params.decrypt if crypto context creation fails. > > Technically this also behaves differently if given multiple --format > arguments, but I'll let that slide. Ugh, right, the old parsing was broken also that way. Luckily that falls in the corner case department too. > > > > Signed-off-by: Jani Nikula > > --- > > notmuch-show.c | 153 +++++++++++++++++++++++++++++--------------------------- > > 1 files changed, 79 insertions(+), 74 deletions(-) > > > > diff --git a/notmuch-show.c b/notmuch-show.c > > index dec799c..f93e121 100644 > > --- a/notmuch-show.c > > +++ b/notmuch-show.c > > @@ -1049,6 +1049,14 @@ do_show (void *ctx, > > return 0; > > } > > > > +enum { > > + NOTMUCH_FORMAT_NOT_SPECIFIED, > > + NOTMUCH_FORMAT_JSON, > > + NOTMUCH_FORMAT_TEXT, > > + NOTMUCH_FORMAT_MBOX, > > + NOTMUCH_FORMAT_RAW > > +}; > > + > > int > > notmuch_show_command (void *ctx, unused (int argc), unused (char *argv[])) > > { > > @@ -1056,92 +1064,98 @@ notmuch_show_command (void *ctx, unused (int argc), unused (char *argv[])) > > notmuch_database_t *notmuch; > > notmuch_query_t *query; > > char *query_string; > > - char *opt; > > + int opt_index; > > const notmuch_show_format_t *format = &format_text; > > - notmuch_show_params_t params; > > - int mbox = 0; > > - int format_specified = 0; > > - int i; > > + notmuch_show_params_t params = { .part = -1 }; > > + int format_sel = NOTMUCH_FORMAT_NOT_SPECIFIED; > > + notmuch_bool_t decrypt = FALSE; > > + notmuch_bool_t verify = FALSE; > > + notmuch_bool_t entire_thread = FALSE; > > + > > + notmuch_opt_desc_t options[] = { > > + { NOTMUCH_OPT_KEYWORD, &format_sel, "format", 'f', > > + (notmuch_keyword_t []){ { "json", NOTMUCH_FORMAT_JSON }, > > + { "text", NOTMUCH_FORMAT_TEXT }, > > + { "mbox", NOTMUCH_FORMAT_MBOX }, > > + { "raw", NOTMUCH_FORMAT_RAW }, > > + { 0, 0 } } }, > > + { NOTMUCH_OPT_INT, ¶ms.part, "part", 'p', 0 }, > > + { NOTMUCH_OPT_BOOLEAN, &entire_thread, "entire-thread", 't', 0 }, > > + { NOTMUCH_OPT_BOOLEAN, &decrypt, "decrypt", 'd', 0 }, > > + { NOTMUCH_OPT_BOOLEAN, &verify, "verify", 'v', 0 }, > > + { 0, 0, 0, 0, 0 } > > + }; > > + > > + opt_index = parse_arguments (argc, argv, options, 1); > > + if (opt_index < 0) { > > + /* diagnostics already printed */ > > + return 1; > > + } > > > > - params.entire_thread = 0; > > - params.raw = 0; > > - params.part = -1; > > - params.cryptoctx = NULL; > > - params.decrypt = 0; > > + params.entire_thread = entire_thread; > > If you make params.entire_thread a notmuch_bool_t (instead of an int), > you could pass ¶ms.entire_thread in the notmuch_opt_desc_t and get > rid of the local variable. You're right; I was a bit lazy and didn't consider changing notmuch_show_params_t. I'll change both this and params.decrypt to notmuch_bool_t. > > > > > - argc--; argv++; /* skip subcommand argument */ > > + if (format_sel == NOTMUCH_FORMAT_NOT_SPECIFIED) { > > + /* if part was requested and format was not specified, use format=raw */ > > + if (params.part >= 0) > > + format_sel = NOTMUCH_FORMAT_RAW; > > + else > > + format_sel = NOTMUCH_FORMAT_TEXT; > > + } > > > > - for (i = 0; i < argc && argv[i][0] == '-'; i++) { > > - if (strcmp (argv[i], "--") == 0) { > > - i++; > > - break; > > + switch (format_sel) { > > + case NOTMUCH_FORMAT_JSON: > > + format = &format_json; > > + params.entire_thread = 1; > > + break; > > + case NOTMUCH_FORMAT_TEXT: > > + format = &format_text; > > + break; > > + case NOTMUCH_FORMAT_MBOX: > > + if (params.part > 0) { > > + fprintf (stderr, "Error: specifying parts is incompatible with mbox output format.\n"); > > + return 1; > > } > > - if (STRNCMP_LITERAL (argv[i], "--format=") == 0) { > > - opt = argv[i] + sizeof ("--format=") - 1; > > - if (strcmp (opt, "text") == 0) { > > - format = &format_text; > > - } else if (strcmp (opt, "json") == 0) { > > - format = &format_json; > > - params.entire_thread = 1; > > - } else if (strcmp (opt, "mbox") == 0) { > > - format = &format_mbox; > > - mbox = 1; > > - } else if (strcmp (opt, "raw") == 0) { > > - format = &format_raw; > > - params.raw = 1; > > - } else { > > - fprintf (stderr, "Invalid value for --format: %s\n", opt); > > - return 1; > > - } > > - format_specified = 1; > > - } else if (STRNCMP_LITERAL (argv[i], "--part=") == 0) { > > - params.part = atoi(argv[i] + sizeof ("--part=") - 1); > > - } else if (STRNCMP_LITERAL (argv[i], "--entire-thread") == 0) { > > - params.entire_thread = 1; > > - } else if ((STRNCMP_LITERAL (argv[i], "--verify") == 0) || > > - (STRNCMP_LITERAL (argv[i], "--decrypt") == 0)) { > > - if (params.cryptoctx == NULL) { > > + format = &format_mbox; > > + break; > > + case NOTMUCH_FORMAT_RAW: > > + format = &format_raw; > > + /* If --format=raw specified without specifying part, we can only > > + * output single message, so set part=0 */ > > + if (params.part < 0) > > + params.part = 0; > > + params.raw = 1; > > + break; > > + } > > + > > + if (decrypt || verify) { > > #ifdef GMIME_ATLEAST_26 > > - /* TODO: GMimePasswordRequestFunc */ > > - if (NULL == (params.cryptoctx = g_mime_gpg_context_new(NULL, "gpg"))) > > + /* TODO: GMimePasswordRequestFunc */ > > + params.cryptoctx = g_mime_gpg_context_new (NULL, "gpg"); > > #else > > - GMimeSession* session = g_object_new(g_mime_session_get_type(), NULL); > > - if (NULL == (params.cryptoctx = g_mime_gpg_context_new(session, "gpg"))) > > -#endif > > - fprintf (stderr, "Failed to construct gpg context.\n"); > > - else > > - g_mime_gpg_context_set_always_trust((GMimeGpgContext*)params.cryptoctx, FALSE); > > -#ifndef GMIME_ATLEAST_26 > > - g_object_unref (session); > > - session = NULL; > > + GMimeSession* session = g_object_new (g_mime_session_get_type(), NULL); > > + params.cryptoctx = g_mime_gpg_context_new (session, "gpg"); > > #endif > > - } > > - if (STRNCMP_LITERAL (argv[i], "--decrypt") == 0) > > - params.decrypt = 1; > > + if (params.cryptoctx) { > > + g_mime_gpg_context_set_always_trust ((GMimeGpgContext*) params.cryptoctx, FALSE); > > + params.decrypt = decrypt; > > Would it be easier to pass ¶ms.decrypt in the notmuch_opt_desc_t > and set it to FALSE in the 'else' branch of this? Agreed. That can be done if decrypt is changed to notmuch_bool_t. > > > } else { > > - fprintf (stderr, "Unrecognized option: %s\n", argv[i]); > > - return 1; > > + fprintf (stderr, "Failed to construct gpg context.\n"); > > } > > +#ifndef GMIME_ATLEAST_26 > > + g_object_unref (session); > > +#endif > > } > > > > - argc -= i; > > - argv += i; > > - > > config = notmuch_config_open (ctx, NULL, NULL); > > if (config == NULL) > > return 1; > > > > - query_string = query_string_from_args (ctx, argc, argv); > > + query_string = query_string_from_args (ctx, argc-opt_index, argv+opt_index); > > if (query_string == NULL) { > > fprintf (stderr, "Out of memory\n"); > > return 1; > > } > > > > - if (mbox && params.part > 0) { > > - fprintf (stderr, "Error: specifying parts is incompatible with mbox output format.\n"); > > - return 1; > > - } > > - > > if (*query_string == '\0') { > > fprintf (stderr, "Error: notmuch show requires at least one search term.\n"); > > return 1; > > @@ -1158,15 +1172,6 @@ notmuch_show_command (void *ctx, unused (int argc), unused (char *argv[])) > > return 1; > > } > > > > - /* if part was requested and format was not specified, use format=raw */ > > - if (params.part >= 0 && !format_specified) > > - format = &format_raw; > > - > > - /* If --format=raw specified without specifying part, we can only > > - * output single message, so set part=0 */ > > - if (params.raw && params.part < 0) > > - params.part = 0; > > - > > if (params.part >= 0) > > return do_show_single (ctx, query, format, ¶ms); > > else