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notmuch help: Update documentation (following recent text from notmuch.1)

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We take the recently created text from the notmuch manual page and
update the "notmuch help" command to use similar text. In particular,
we add a new "notmuch help search-terms" for documenting the search
syntax that is common to several commands.
This commit is contained in:
Carl Worth 2009-11-17 23:37:21 -08:00
parent d6faef5b76
commit 533d0f5382
2 changed files with 203 additions and 102 deletions
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9
notmuch-client.h
View file

@ -69,15 +69,6 @@
#define STRNCMP_LITERAL(var, literal) \ #define STRNCMP_LITERAL(var, literal) \
strncmp ((var), (literal), sizeof (literal) - 1) strncmp ((var), (literal), sizeof (literal) - 1)
typedef int (*command_function_t) (void *ctx, int argc, char *argv[]);
typedef struct command {
const char *name;
command_function_t function;
const char *summary;
const char *documentation;
} command_t;
typedef void (*add_files_callback_t) (notmuch_message_t *message); typedef void (*add_files_callback_t) (notmuch_message_t *message);
typedef struct { typedef struct {

296
notmuch.c
View file

@ -22,118 +22,199 @@
#include "notmuch-client.h" #include "notmuch-client.h"
typedef int (*command_function_t) (void *ctx, int argc, char *argv[]);
typedef struct command {
const char *name;
command_function_t function;
const char *arguments;
const char *summary;
const char *documentation;
} command_t;
static int static int
notmuch_help_command (void *ctx, int argc, char *argv[]); notmuch_help_command (void *ctx, int argc, char *argv[]);
static const char search_terms_help[] =
"\t\tSeveral notmuch commands accept a comman syntax for search\n"
"\t\tterms.\n"
"\n"
"\t\tThe search terms can consist of free-form text (and quoted\n"
"\t\tphrases) which will match all messages that contain all of\n"
"\t\tthe given terms/phrases in the body, the subject, or any of\n"
"\t\tthe sender or recipient headers.\n"
"\n"
"\t\tIn addition to free text, the following prefixes can be used\n"
"\t\tto force terms to match against specific portions of an email,\n"
"\t\t(where <brackets> indicate user-supplied values):\n"
"\n"
"\t\t\tfrom:<name-or-address>\n"
"\t\t\tto:<name-or-address>\n"
"\t\t\tsubject:<word-or-quoted-phrase>\n"
"\t\t\tattachment:<word>\n"
"\t\t\ttag:<tag>\n"
"\t\t\tid:<message-id>\n"
"\t\t\tthread:<thread-id>\n"
"\n"
"\t\tThe from: prefix is used to match the name or address of\n"
"\t\tthe sender of an email message.\n"
"\n"
"\t\tThe to: prefix is used to match the names or addresses of\n"
"\t\tany recipient of an email message, (whether To, Cc, or Bcc).\n"
"\n"
"\t\tAny term prefixed with subject: will match only text from\n"
"\t\tthe subject of an email. Quoted phrases are supported when\n"
"\t\tsearching with: subject:\"this is a phrase\".\n"
"\n"
"\t\tFor tag:, valid tag values include \"inbox\" and \"unread\"\n"
"\t\tby default for new messages added by \"notmuch new\" as well\n"
"\t\tas any other tag values added manually with \"notmuch tag\".\n"
"\n"
"\t\tFor id:, message ID values are the literal contents of the\n"
"\t\tMessage-ID: header of email messages, but without the '<','>'\n"
"\t\tdelimiters.\n"
"\n"
"\t\tThe thread: prefix can be used with the thread ID values that\n"
"\t\tare generated internally by notmuch (and do not appear in email\n"
"\t\tmessages). These thread ID values can be seen in the first\n"
"\t\tcolumn of output from \"notmuch search\".\n"
"\n"
"\t\tIn addition to individual terms, multiple terms can be\n"
"\t\tcombined with Boolean operators (\"and\", \"or\", \"not\", etc.).\n"
"\t\tEach term in the query will be implicitly connected by a\n"
"\t\tlogical AND if no explicit operator is provided, (except\n"
"\t\tthat terms with a common prefix will be implicitly combined\n"
"\t\twith OR until we get Xapian defect #402 fixed).\n"
"\n"
"\t\tParentheses can also be used to control the combination of\n"
"\t\tthe Boolean operators, but will have to be protected from\n"
"\t\tinterpretation by the shell, (such as by putting quotation\n"
"\t\tmarks around any parenthesized expression).\n\n";
command_t commands[] = { command_t commands[] = {
{ "setup", notmuch_setup_command, { "setup", notmuch_setup_command,
NULL,
"Interactively setup notmuch for first use.", "Interactively setup notmuch for first use.",
"\t\tThe setup command is the first command you will run in order\n" "\t\tThe setup command will prompt for your full name, your primary\n"
"\t\tto start using notmuch. It will prompt you for the directory\n" "\t\temail address, any alternate email addresses you use, and the\n"
"\t\tcontaining your email archives, and will then proceed to build\n" "\t\tdirectory containing your email archives. Your answers will be\n"
"\t\ta database to allow fast searching of that mail.\n\n" "\t\twritten to a configuration file in ${HOME}/.notmuch-config .\n"
"\n"
"\t\tThis configuration file will be created with descriptive\n"
"\t\tcomments, making it easy to edit by hand later to change the\n"
"\t\tconfiguration. Or you can run \"notmuch setup\" again.\n"
"\n"
"\t\tInvoking notmuch with no command argument will run setup if\n" "\t\tInvoking notmuch with no command argument will run setup if\n"
"\t\tthe setup command has not previously been completed." }, "\t\tthe setup command has not previously been completed." },
{ "new", notmuch_new_command, { "new", notmuch_new_command,
"Find and import any new messages.", NULL,
"\t\tScans all sub-directories of the database, adding new messages\n" "Find and import new messages to the notmuch database.",
"\t\tthat are found. Each new message will be tagged as both\n" "\t\tScans all sub-directories of the mail directory, performing\n"
"\t\t\"inbox\" and \"unread\".\n" "\t\tfull-text indexing on new messages that are found. Each new\n"
"\t\tmessage will be tagged as both \"inbox\" and \"unread\".\n"
"\n" "\n"
"\t\tNote: \"notmuch new\" will skip any read-only directories,\n" "\t\tYou should run \"notmuch new\" once after first running\n"
"\t\tso you can use that to mark directories that will not\n" "\t\t\"notmuch setup\" to create the initial database. The first\n"
"\t\treceive any new mail (and make \"notmuch new\" faster)." }, "\t\trun may take a long time if you have a significant amount of\n"
"\t\tmail (several hundred thousand messages or more).\n"
"\n"
"\t\tSubsequently, you should run \"notmuch new\" whenever new mail\n"
"\t\tis delivered and you wish to incorporate it into the database.\n"
"\t\tThese subsequent runs will be much quicker than the initial run.\n"
"\n"
"\t\tNote: \"notmuch new\" runs (other than the first run) will\n"
"\t\tskip any read-only directories, so you can use that to mark\n"
"\t\tdirectories that will not receive any new mail (and make\n"
"\t\t\"notmuch new\" even faster).\n"
"\n"
"\t\tInvoking notmuch with no command argument will run new if\n"
"\t\tthe setup command has previously been completed, but new has\n"
"\t\tnot previously been run." },
{ "search", notmuch_search_command, { "search", notmuch_search_command,
"<search-term> [...]\n\n" "[options...] <search-terms> [...]",
"\t\tSearch for threads matching the given search terms.", "\t\tSearch for messages matching the given search terms.",
"\t\tNote that the individual mail messages will be matched\n" "\t\tNote that the individual mail messages will be matched\n"
"\t\tagainst the search terms, but the results will be the\n" "\t\tagainst the search terms, but the results will be the\n"
"\t\tthreads containing the matched messages.\n\n" "\t\tthreads (one per line) containing the matched messages.\n"
"\t\tCurrently, in addition to free text (and quoted phrases)\n" "\n"
"\t\twhich match terms appearing anywhere within an email,\n" "\t\tSupported options for search include:\n"
"\t\tthe following prefixes can be used to search specific\n" "\n"
"\t\tportions of an email, (where <brackets> indicate user-\n" "\t\t--max-threads=<value>\n"
"\t\tsupplied values):\n\n" "\n"
"\t\t\tfrom:<name-or-address>\n" "\t\t\tRestricts displayed search results to a subset\n"
"\t\t\tto:<name-or-address>\n" "\t\t\tof the results that would match the terms.\n"
"\t\t\tsubject:<word-or-quoted-phrase>\n" "\n"
"\t\t\ttag:<tag>\n" "\t\t--first=<value>\n"
"\t\t\tid:<message-id>\n" "\n"
"\t\t\tthread:<thread-id>\n\n" "\t\t\tOmits the first <value> threads from the search\n"
"\t\tThe from: prefix is used to match the name or address of\n" "\t\t\tresults that would otherwise be displayed.\n"
"\t\tthe sender of an email message.\n\n" "\n"
"\t\tThe to: prefix is used to match the names or addresses of\n" "\t\t--sort=(newest-first|oldest-first)\n"
"\t\tany recipient of an email message, (whether To, Cc, or Bcc).\n\n" "\n"
"\t\tAny term prefixed with subject: will match only text from\n" "\t\t\tPresent results in either chronological order\n"
"\t\tthe subject of an email. Quoted phrases are supported when\n" "\t\t\t(oldest-first) or reverse chronological order\n"
"\t\tsearching with: subject:\"this is a phrase\".\n\n" "\t\t\t(newest-first), which is the default.\n"
"\t\tValid tag values include \"inbox\" and \"unread\" by default\n" "\n"
"\t\tfor new messages added by \"notmuch new\" as well as any other\n" "\t\tSee \"notmuch help search-terms\" for details of the search\n"
"\t\ttag values added manually with \"notmuch tag\".\n\n" "\t\tterms syntax." },
"\t\tMessage ID values are the literal contents of the Message-ID:\n"
"\t\theader of email messages, but without the '<','>' delimiters.\n\n"
"\t\tThread ID values are generated internally by notmuch but can\n"
"\t\tbe seen in the output of \"notmuch search\" for example.\n\n"
"\t\tIn addition to individual terms, multiple terms can be\n"
"\t\tcombined with Boolean operators (\"and\", \"or\", \"not\", etc.).\n"
"\t\tEach term in the query will be implicitly connected by a\n"
"\t\tlogical AND if no explicit operator is provided, (except\n"
"\t\tthat terms with a common prefix will be implicitly combined\n"
"\t\twith OR until we get Xapian defect #402 fixed).\n\n"
"\t\tParentheses can also be used to control the combination of\n"
"\t\tthe Boolean operators, but will have to be protected from\n"
"\t\tinterpretation by the shell, (such as by putting quotation\n"
"\t\tmarks around any parenthesized expression)." },
{ "reply", notmuch_reply_command,
"<search-terms> [...]\n\n"
"\t\tFormats a reply from a set of existing messages.",
"\t\tConstructs a new message as a reply to a set of existing\n"
"\t\tmessages. The From: address is used as a To: address\n"
"\t\talong with all old To: addresses. All of the Cc: addresses\n"
"\t\tare copied as new Cc: addresses. An In-Reply-To: header\n"
"\t\twill be constructed from the name and date of the original\n"
"\t\tmessage, and the original Message-ID will be added to the\n"
"\t\tlist of References in the new message. The text of each\n"
"\t\tmessage (as described in the \"show\" command) will be\n"
"\t\tpresented, each line prefixed with \"> \" The resulting\n"
"\t\tmessage will be dumped to stdout." },
{ "show", notmuch_show_command, { "show", notmuch_show_command,
"<search-terms> [...]\n\n" "<search-terms> [...]",
"\t\tShows all messages matching the search terms.", "\t\tShow all messages matching the search terms.",
"\t\tSee the documentation of \"notmuch search\" for details\n" "\t\tThe messages are grouped and sorted based on the threading\n"
"\t\tof the supported syntax of search terms.\n\n" "\t\t(all replies to a particular message appear immediately\n"
"\t\tafter that message in date order).\n"
"\n"
"\t\tThe output format is plain-text, with all text-content\n"
"\t\tMIME parts decoded. Various components in the output,\n"
"\t\t('message', 'header', 'body', 'attachment', and MIME 'part')\n"
"\t\tare delimited by easily-parsed markers. Each marker consists\n"
"\t\tof a Control-L character (ASCII decimal 12), the name of\n"
"\t\tthe marker, and then either an opening or closing brace,\n"
"\t\t'{' or '}' to either open or close the component.\n"
"\n"
"\t\tA common use of \"notmuch show\" is to display a single\n" "\t\tA common use of \"notmuch show\" is to display a single\n"
"\t\tthread of email messages. For this, use a search term of\n" "\t\tthread of email messages. For this, use a search term of\n"
"\t\t\"thread:<thread-id>\" as can be seen in the first column\n" "\t\t\"thread:<thread-id>\" as can be seen in the first column\n"
"\t\tof output from the \"notmuch search\" command.\n\n" "\t\tof output from the \"notmuch search\" command.\n"
"\t\tAll messages will be displayed in date order. The output\n" "\n"
"\t\tformat is plain-text, with all text-content MIME parts\n" "\t\tSee \"notmuch help search-terms\" for details of the search\n"
"\t\tdecoded. Various components in the output, ('message',\n" "\t\tterms syntax." },
"\t\t'header', 'body', 'attachment', and MIME 'part') will be\n" { "reply", notmuch_reply_command,
"\t\tdelimited by easily-parsed markers. Each marker consists\n" "<search-terms> [...]",
"\t\tof a Control-L character (ASCII decimal 12), the name of\n" "\t\tConstruct a reply template for a set of messages.",
"\t\tthe marker, and then either an opening or closing brace,\n" "\t\tConstructs a new message as a reply to a set of existing\n"
"\t\t'{' or '}' to either open or close the component."}, "\t\tmessages. The Reply-To: header (if any, otherwise From:) is\n"
"\t\tused for the To: address. The To: and Cc: headers are copied,\n"
"\t\tbut not including any of the user's configured addresses.\n"
"\n"
"\t\tA suitable subject is constructed. The In-Reply-to: and\n"
"\t\tReferences: headers are set appropriately, and the content\n"
"\t\tof the original messages is quoted and included in the body.\n"
"\n"
"\t\tThe resulting message template is output to stdout.\n"
"\n"
"\t\tSee \"notmuch help search-terms\" for details of the search\n"
"\t\tterms syntax." },
{ "tag", notmuch_tag_command, { "tag", notmuch_tag_command,
"+<tag>|-<tag> [...] [--] <search-term> [...]\n\n" "+<tag>|-<tag> [...] [--] <search-terms> [...]",
"\t\tAdd/remove tags for all messages matching the search terms.", "\t\tAdd/remove tags for all messages matching the search terms.",
"\t\tThe search terms are handled exactly as in 'search' so one\n" "\t\tThe search terms are handled exactly as in 'search' so one\n"
"\t\tcan use that command first to see what will be modified.\n\n" "\t\tcan use that command first to see what will be modified.\n"
"\t\tTags prefixed by '+' are added while those prefixed by '-' are\n" "\n"
"\t\tremoved. For each message, tag removal is before tag addition.\n\n" "\t\tTags prefixed by '+' are added while those prefixed by\n"
"\t\t'-' are removed. For each message, tag removal is performed\n"
"\t\tbefore tag addition.\n"
"\n"
"\t\tThe beginning of <search-terms> is recognized by the first\n" "\t\tThe beginning of <search-terms> is recognized by the first\n"
"\t\targument that begins with neither '+' nor '-'. Support for\n" "\t\targument that begins with neither '+' nor '-'. Support for\n"
"\t\tan initial search term beginning with '+' or '-' is provided\n" "\t\tan initial search term beginning with '+' or '-' is provided\n"
"\t\tby allowing the user to specify a \"--\" argument to separate\n" "\t\tby allowing the user to specify a \"--\" argument to separate\n"
"\t\tthe tags from the search terms.\n\n" "\t\tthe tags from the search terms.\n"
"\t\tNote: If you run \"notmuch new\" between reading a thread with\n" "\n"
"\t\t\"notmuch show\" and removing the \"inbox\" tag for that thread\n" "\t\tSee \"notmuch help search-terms\" for details of the search\n"
"\t\twith \"notmuch tag\" then you create the possibility of moving\n" "\t\tterms syntax." },
"\t\tsome messages from that thread out of your inbox without ever\n"
"\t\treading them. The easiest way to avoid this problem is to not\n"
"\t\trun \"notmuch new\" between reading and removing tags." },
{ "dump", notmuch_dump_command, { "dump", notmuch_dump_command,
"[<filename>]\n\n" "[<filename>]",
"\t\tCreate a plain-text dump of the tags for each message.", "\t\tCreate a plain-text dump of the tags for each message.",
"\t\tOutput is to the given filename, if any, or to stdout.\n" "\t\tOutput is to the given filename, if any, or to stdout.\n"
"\t\tThese tags are the only data in the notmuch database\n" "\t\tThese tags are the only data in the notmuch database\n"
@ -142,7 +223,7 @@ command_t commands[] = {
"\t\tcritical thing to backup (and much more friendly to\n" "\t\tcritical thing to backup (and much more friendly to\n"
"\t\tincremental backup than the native database files.)" }, "\t\tincremental backup than the native database files.)" },
{ "restore", notmuch_restore_command, { "restore", notmuch_restore_command,
"<filename>\n\n" "<filename>",
"\t\tRestore the tags from the given dump file (see 'dump').", "\t\tRestore the tags from the given dump file (see 'dump').",
"\t\tNote: The dump file format is specifically chosen to be\n" "\t\tNote: The dump file format is specifically chosen to be\n"
"\t\tcompatible with the format of files produced by sup-dump.\n" "\t\tcompatible with the format of files produced by sup-dump.\n"
@ -150,7 +231,7 @@ command_t commands[] = {
"\t\t\"notmuch restore\" command provides you a way to import\n" "\t\t\"notmuch restore\" command provides you a way to import\n"
"\t\tall of your tags (or labels as sup calls them)." }, "\t\tall of your tags (or labels as sup calls them)." },
{ "help", notmuch_help_command, { "help", notmuch_help_command,
"[<command>]\n\n" "[<command>]",
"\t\tThis message, or more detailed help for the named command.", "\t\tThis message, or more detailed help for the named command.",
"\t\tExcept in this case, where there's not much more detailed\n" "\t\tExcept in this case, where there's not much more detailed\n"
"\t\thelp available." } "\t\thelp available." }
@ -170,10 +251,17 @@ usage (void)
for (i = 0; i < ARRAY_SIZE (commands); i++) { for (i = 0; i < ARRAY_SIZE (commands); i++) {
command = &commands[i]; command = &commands[i];
fprintf (stderr, "\t%s\t%s\n\n", command->name, command->summary); if (command->arguments)
fprintf (stderr, "\t%s\t%s\n\n%s\n\n",
command->name, command->arguments, command->summary);
else
fprintf (stderr, "\t%s\t%s\n\n",
command->name, command->summary);
} }
fprintf (stderr, "Use \"notmuch help <command>\" for more details on each command.\n\n"); fprintf (stderr,
"Use \"notmuch help <command>\" for more details on each command.\n"
"And \"notmuch help search-terms\" for the common search-terms syntax.\n\n");
} }
static int static int
@ -193,12 +281,34 @@ notmuch_help_command (unused (void *ctx), int argc, char *argv[])
if (strcmp (argv[0], command->name) == 0) { if (strcmp (argv[0], command->name) == 0) {
fprintf (stderr, "Help for \"notmuch %s\":\n\n", argv[0]); fprintf (stderr, "Help for \"notmuch %s\":\n\n", argv[0]);
fprintf (stderr, "\t%s\t%s\n\n%s\n\n", command->name, if (command->arguments)
command->summary, command->documentation); fprintf (stderr, "\t%s\t%s\n\n%s\n\n%s\n\n",
command->name, command->arguments,
command->summary, command->documentation);
else
fprintf (stderr, "\t%s\t%s\n\n%s\n\n", command->name,
command->summary, command->documentation);
return 0; return 0;
} }
} }
if (strcmp (argv[0], "search-terms") == 0) {
fprintf (stderr, "Help for <%s>\n\n", argv[0]);
for (i = 0; i < ARRAY_SIZE (commands); i++) {
command = &commands[i];
if (command->arguments &&
strstr (command->arguments, "search-terms"))
{
fprintf (stderr, "\t%s\t%s\n",
command->name, command->arguments);
}
}
fprintf (stderr, "\n");
fprintf (stderr, search_terms_help);
return 0;
}
fprintf (stderr, fprintf (stderr,
"\nSorry, %s is not a known command. There's not much I can do to help.\n\n", "\nSorry, %s is not a known command. There's not much I can do to help.\n\n",
argv[0]); argv[0]);