/**
* completion_path: print candidate path list.
*
* @param[in] dbpath dbpath directory
* @param[in] prefix prefix of primary key
*/
void
completion_path(const char *dbpath, const char *prefix)
{
GFIND *gp;
const char *localprefix = "./";
DBOP *dbop = dbop_open(NULL, 1, 0600, DBOP_RAW);
const char *path;
int prefix_length;
int target = GPATH_SOURCE;
int flags = (match_part == MATCH_PART_LAST) ? MATCH_LAST : MATCH_FIRST;
if (dbop == NULL)
die("cannot open temporary file.");
if (prefix && *prefix == 0) /* In the case global -c '' */
prefix = NULL;
prefix_length = (prefix == NULL) ? 0 : strlen(prefix);
if (oflag)
target = GPATH_BOTH;
if (Oflag)
target = GPATH_OTHER;
if (iflag || getconfb("icase_path"))
flags |= IGNORE_CASE;
#if _WIN32 || __DJGPP__
else if (!Mflag)
flags |= IGNORE_CASE;
#endif
gp = gfind_open(dbpath, localprefix, target);
while ((path = gfind_read(gp)) != NULL) {
path++; /* skip '.'*/
if (prefix == NULL) {
dbop_put(dbop, path + 1, "");
} else if (match_part == MATCH_PART_ALL) {
const char *p = path;
while ((p = locatestring(p, prefix, flags)) != NULL) {
dbop_put(dbop, p, "");
p += prefix_length;
}
} else {
const char *p = locatestring(path, prefix, flags);
if (p != NULL) {
dbop_put(dbop, p, "");
}
}
}
gfind_close(gp);
for (path = dbop_first(dbop, NULL, NULL, DBOP_KEY); path != NULL; path = dbop_next(dbop)) {
fputs(path, stdout);
fputc('\n', stdout);
}
dbop_close(dbop);
}
/**
* gfind_open: start iterator using GPATH.
*
* @param[in] dbpath dbpath
* @param[in] local local prefix,
* if NULL specified, it assumes "./";
* @param[in] target GPATH_SOURCE: only source file,
* GPATH_OTHER: only other file,
* GPATH_BOTH: source file + other file
* @param[in] flags GPATH_NEARSORT
* @return GFIND structure
*/
GFIND *
gfind_open(const char *dbpath, const char *local, int target, int flags)
{
GFIND *gfind = (GFIND *)check_calloc(sizeof(GFIND), 1);
gfind->dbop = dbop_open(makepath(dbpath, dbname(GPATH), NULL), 0, 0, 0);
if (gfind->dbop == NULL)
die("GPATH not found.");
gfind->path = NULL;
gfind->prefix = check_strdup(local ? local : "./");
gfind->first = 1;
gfind->eod = 0;
gfind->target = target;
gfind->type = GPATH_SOURCE;
gfind->flags = flags;
gfind->path_array = NULL;
gfind->version = dbop_getversion(gfind->dbop);
if (gfind->version > support_version)
die("GPATH seems new format. Please install the latest GLOBAL.");
else if (gfind->version < support_version)
die("GPATH seems older format. Please remake tag files.");
/*
* Nearness sort.
* In fact, this timing of sort is not good for performance.
* Reconsideration is needed later.
*/
if (gfind->flags & GPATH_NEARSORT) {
const char *path = NULL;
VARRAY *varray = varray_open(sizeof(char *), 100);
POOL *pool = pool_open();
while ((path = gfind_read(gfind)) != NULL) {
char **a = varray_append(varray);
*a = pool_strdup(pool, path, 0);
}
if ((nearbase = get_nearbase_path()) == NULL)
die("cannot get nearbase path.");
qsort(varray_assign(varray, 0, 0), varray->length, sizeof(char *), compare_nearpath);
gfind->path_array = varray;
gfind->pool = pool;
gfind->index = 0;
}
return gfind;
}
/**
* Tag command that supports referenced tag must call this function
* to decide whether or not the tag is defined.
*/
int
defined(const char *name)
{
if (dbop == NULL) {
const char *dbpath;
/*
* gtags(1) set GTAGSDBPATH to the path GTAGS exist.
*/
if (!(dbpath = getenv("GTAGSDBPATH")))
dbpath = ".";
dbop = dbop_open(makepath(dbpath, "GTAGS", NULL), 0, 0, 0);
if (dbop == NULL)
die("'GTAGS' not found.");
}
if (dbop_get(dbop, name))
return 1;
return 0;
}
/*
* gfind_open: start iterator using GPATH.
*
* i) dbpath dbpath
* i) local local prefix
* if NULL specified, it assumes "./";
* i) target GPATH_SOURCE: only source file
* GPATH_OTHER: only other file
* GPATH_BOTH: source file + other file
* r) GFIND structure
*/
GFIND *
gfind_open(const char *dbpath, const char *local, int target)
{
GFIND *gfind = (GFIND *)check_calloc(sizeof(GFIND), 1);
gfind->dbop = dbop_open(makepath(dbpath, dbname(GPATH), NULL), 0, 0, 0);
if (gfind->dbop == NULL)
die("GPATH not found.");
gfind->path = NULL;
gfind->prefix = check_strdup(local ? local : "./");
gfind->first = 1;
gfind->eod = 0;
gfind->target = target;
gfind->type = GPATH_SOURCE;
gfind->version = dbop_getversion(gfind->dbop);
if (gfind->version > support_version)
die("GPATH seems new format. Please install the latest GLOBAL.");
else if (gfind->version < support_version)
die("GPATH seems older format. Please remake tag files.");
return gfind;
}
/*
* gpath_open: open gpath tag file
*
* i) dbpath GTAGSDBPATH
* i) mode 0: read only
* 1: create
* 2: modify
* r) 0: normal
* -1: error
*/
int
gpath_open(const char *dbpath, int mode)
{
if (opened > 0) {
if (mode != _mode)
die("duplicate open with different mode.");
opened++;
return 0;
}
/*
* We create GPATH just first time.
*/
_mode = mode;
if (mode == 1 && created)
mode = 0;
dbop = dbop_open(makepath(dbpath, dbname(GPATH), NULL), mode, 0644, 0);
if (dbop == NULL)
return -1;
if (mode == 1) {
dbop_putversion(dbop, create_version);
_nextkey = 1;
} else {
int format_version;
const char *path = dbop_get(dbop, NEXTKEY);
if (path == NULL)
die("nextkey not found in GPATH.");
_nextkey = atoi(path);
format_version = dbop_getversion(dbop);
if (format_version > support_version)
die("GPATH seems new format. Please install the latest GLOBAL.");
else if (format_version < support_version)
die("GPATH seems older format. Please remake tag files.");
}
opened++;
return 0;
}
/**
* gtags_open: open global tag.
*
* @param[in] dbpath dbpath directory
* @param[in] root root directory (needed when compact format)
* @param[in] db #GTAGS, #GRTAGS, #GSYMS
* @param[in] mode #GTAGS_READ: read only <br>
* #GTAGS_CREATE: create tag <br>
* #GTAGS_MODIFY: modify tag
* @param[in] flags #GTAGS_COMPACT: compact format
* @return #GTOP structure
*
* @note when error occurred, @NAME{gtags_open()} doesn't return.
*/
GTOP *
gtags_open(const char *dbpath, const char *root, int db, int mode, int flags)
{
GTOP *gtop;
char tagfile[MAXPATHLEN];
int dbmode;
gtop = (GTOP *)check_calloc(sizeof(GTOP), 1);
gtop->db = db;
gtop->mode = mode;
gtop->openflags = flags;
/*
* Open tag file allowing duplicate records.
*/
switch (gtop->mode) {
case GTAGS_READ:
dbmode = 0;
break;
case GTAGS_CREATE:
dbmode = 1;
break;
case GTAGS_MODIFY:
dbmode = 2;
break;
default:
assert(0);
}
/*
* GRTAGS and GSYMS are virtual tag file. They are included in a real GRTAGS file.
* In fact, GSYMS doesn't exist now.
*
* GRTAGS: tags which belongs to GRTAGS, and are defined in GTAGS.
* GSYMS: tags which belongs to GRTAGS, and is not defined in GTAGS.
*/
strlimcpy(tagfile, makepath(dbpath, dbname(db == GSYMS ? GRTAGS : db), NULL), sizeof(tagfile));
gtop->dbop = dbop_open(tagfile, dbmode, 0644, DBOP_DUP|DBOP_SORTED_WRITE);
if (gtop->dbop == NULL) {
if (dbmode == 1)
die("cannot make %s.", dbname(db));
die("%s not found.", dbname(db));
}
if (gtop->mode == GTAGS_READ && db != GTAGS) {
const char *gtags = makepath(dbpath, dbname(GTAGS), NULL);
int format_version;
gtop->gtags = dbop_open(gtags, 0, 0, 0);
if (gtop->gtags == NULL)
die("GTAGS not found.");
format_version = dbop_getversion(gtop->dbop);
if (format_version > upper_bound_version)
die("%s seems new format. Please install the latest GLOBAL.", gtags);
else if (format_version < lower_bound_version)
die("%s seems older format. Please remake tag files.", gtags);
}
if (gtop->mode == GTAGS_CREATE) {
/*
* Decide format.
*/
gtop->format = 0;
gtop->format_version = new_format_version;
/*
* GRTAGS and GSYSM always use compact format.
* GTAGS uses compact format only when the -c option specified.
*/
if (gtop->db == GRTAGS || gtop->db == GSYMS || gtop->openflags & GTAGS_COMPACT) {
gtop->format |= GTAGS_COMPACT;
gtop->format |= GTAGS_COMPLINE;
} else {
/* standard format */
gtop->format |= GTAGS_COMPRESS;
}
gtop->format |= GTAGS_COMPNAME;
if (gtop->format & GTAGS_COMPACT)
dbop_putoption(gtop->dbop, COMPACTKEY, NULL);
if (gtop->format & GTAGS_COMPRESS) {
dbop_putoption(gtop->dbop, COMPRESSKEY, DEFAULT_ABBREVIATION);
abbrev_open(DEFAULT_ABBREVIATION);
}
if (gtop->format & GTAGS_COMPLINE)
dbop_putoption(gtop->dbop, COMPLINEKEY, NULL);
if (gtop->format & GTAGS_COMPNAME)
dbop_putoption(gtop->dbop, COMPNAMEKEY, NULL);
dbop_putversion(gtop->dbop, gtop->format_version);
} else {
/*
* recognize format version of GTAGS. 'format version record'
* is saved as a META record in GTAGS and GRTAGS.
* if 'format version record' is not found, it's assumed
* version 1.
*/
const char *p;
/*
* check format version.
*/
gtop->format_version = dbop_getversion(gtop->dbop);
if (gtop->format_version > upper_bound_version)
die("%s seems new format. Please install the latest GLOBAL.", tagfile);
else if (gtop->format_version < lower_bound_version)
die("%s seems older format. Please remake tag files.", tagfile);
gtop->format = 0;
if (dbop_getoption(gtop->dbop, COMPACTKEY) != NULL)
gtop->format |= GTAGS_COMPACT;
if ((p = dbop_getoption(gtop->dbop, COMPRESSKEY)) != NULL) {
abbrev_open(p);
gtop->format |= GTAGS_COMPRESS;
}
if (dbop_getoption(gtop->dbop, COMPLINEKEY) != NULL)
gtop->format |= GTAGS_COMPLINE;
if (dbop_getoption(gtop->dbop, COMPNAMEKEY) != NULL)
gtop->format |= GTAGS_COMPNAME;
}
if (gpath_open(dbpath, dbmode) < 0) {
if (dbmode == 1)
die("cannot create GPATH.");
else
die("GPATH not found.");
}
if (gtop->mode != GTAGS_READ)
gtop->sb = strbuf_open(0); /* This buffer is used for working area. */
/*
* Stuff for compact format.
*/
if (gtop->format & GTAGS_COMPACT) {
assert(root != NULL);
strlimcpy(gtop->root, root, sizeof(gtop->root));
if (gtop->mode != GTAGS_READ)
gtop->path_hash = strhash_open(HASHBUCKETS);
}
return gtop;
}
int
decide_tag_by_context(const char *tag, const char *file, int lineno)
{
STRBUF *sb = NULL;
char path[MAXPATHLEN], s_fid[MAXFIDLEN];
const char *tagline, *p;
DBOP *dbop;
int db = GSYMS;
int iscompline = 0;
if (normalize(file, get_root_with_slash(), cwd, path, sizeof(path)) == NULL)
die("'%s' is out of source tree.", file);
/*
* get file id
*/
if (gpath_open(dbpath, 0) < 0)
die("GPATH not found.");
if ((p = gpath_path2fid(path, NULL)) == NULL)
die("path name in the context is not found.");
strlimcpy(s_fid, p, sizeof(s_fid));
gpath_close();
/*
* read btree records directly to avoid the overhead.
*/
dbop = dbop_open(makepath(dbpath, dbname(GTAGS), NULL), 0, 0, 0);
if (dbop == NULL)
die("cannot open GTAGS.");
if (dbop_getoption(dbop, COMPLINEKEY))
iscompline = 1;
tagline = dbop_first(dbop, tag, NULL, 0);
if (tagline) {
db = GTAGS;
for (; tagline; tagline = dbop_next(dbop)) {
/*
* examine whether the definition record include the context.
*/
p = locatestring(tagline, s_fid, MATCH_AT_FIRST);
if (p != NULL && *p == ' ') {
for (p++; *p && *p != ' '; p++)
;
if (*p++ != ' ' || !isdigit(*p))
die("Impossible! decide_tag_by_context(1)");
/*
* Standard format n <blank> <image>$
* Compact format d,d,d,d$
*/
if (!iscompline) { /* Standard format */
if (atoi(p) == lineno) {
db = GRTAGS;
goto finish;
}
} else { /* Compact format */
int n, cur, last = 0;
do {
if (!isdigit(*p))
die("Impossible! decide_tag_by_context(2)");
NEXT_NUMBER(p);
cur = last + n;
if (cur == lineno) {
db = GRTAGS;
goto finish;
}
last = cur;
if (*p == '-') {
if (!isdigit(*++p))
die("Impossible! decide_tag_by_context(3)");
NEXT_NUMBER(p);
cur = last + n;
if (lineno >= last && lineno <= cur) {
db = GRTAGS;
goto finish;
}
last = cur;
}
if (*p) {
if (*p == ',')
p++;
else
die("Impossible! decide_tag_by_context(4)");
}
} while (*p);
}
}
}
}
finish:
dbop_close(dbop);
if (db == GSYMS && getenv("GTAGSLIBPATH")) {
char libdbpath[MAXPATHLEN];
char *libdir = NULL, *nextp = NULL;
sb = strbuf_open(0);
strbuf_puts(sb, getenv("GTAGSLIBPATH"));
for (libdir = strbuf_value(sb); libdir; libdir = nextp) {
if ((nextp = locatestring(libdir, PATHSEP, MATCH_FIRST)) != NULL)
*nextp++ = 0;
if (!gtagsexist(libdir, libdbpath, sizeof(libdbpath), 0))
continue;
if (!strcmp(dbpath, libdbpath))
continue;
dbop = dbop_open(makepath(libdbpath, dbname(GTAGS), NULL), 0, 0, 0);
if (dbop == NULL)
continue;
tagline = dbop_first(dbop, tag, NULL, 0);
dbop_close(dbop);
if (tagline != NULL) {
db = GTAGS;
break;
}
}
strbuf_close(sb);
}
return db;
}
void
parsefile(char *const *argv, const char *cwd, const char *root, const char *dbpath, int db)
{
int count = 0;
int file_count = 0;
STRBUF *sb = strbuf_open(0);
char *langmap;
const char *plugin_parser, *av;
char path[MAXPATHLEN];
struct parsefile_data data;
if (db == GRTAGS + GSYMS)
data.target = TARGET_REF|TARGET_SYM;
else
data.target = 1 << db;
data.extractmethod = getconfb("extractmethod");
if (getconfs("langmap", sb))
langmap = check_strdup(strbuf_value(sb));
else
langmap = NULL;
strbuf_reset(sb);
if (getconfs("gtags_parser", sb))
plugin_parser = strbuf_value(sb);
else
plugin_parser = NULL;
data.cv = convert_open(type, format, root, cwd, dbpath, stdout);
if (gpath_open(dbpath, 0) < 0)
die("GPATH not found.");
if (data.target == TARGET_REF || data.target == TARGET_SYM) {
data.dbop = dbop_open(makepath(dbpath, dbname(GTAGS), NULL), 0, 0, 0);
if (data.dbop == NULL)
die("%s not found.", dbname(GTAGS));
} else {
data.dbop = NULL;
}
data.fid = NULL;
parser_init(langmap, plugin_parser);
if (langmap != NULL)
free(langmap);
if (*argv && file_list)
args_open_both(argv, file_list);
else if (*argv)
args_open(argv);
else if (file_list)
args_open_filelist(file_list);
else
args_open_nop();
while ((av = args_read()) != NULL) {
/*
* convert the path into relative to the root directory of source tree.
*/
if (normalize(av, get_root_with_slash(), cwd, path, sizeof(path)) == NULL)
if (!qflag)
fprintf(stderr, "'%s' is out of source tree.\n", path + 2);
/*
* Memorize the file id of the path. This is used in put_syms().
*/
{
static char s_fid[MAXFIDLEN];
const char *p = gpath_path2fid(path, NULL);
if (!p) {
if (!qflag)
fprintf(stderr, "'%s' not found in GPATH.\n", path + 2);
continue;
}
strlimcpy(s_fid, p, sizeof(s_fid));
data.fid = s_fid;
}
if (!test("f", makepath(root, path, NULL))) {
if (test("d", NULL)) {
if (!qflag)
fprintf(stderr, "'%s' is a directory.\n", av);
} else {
if (!qflag)
fprintf(stderr, "'%s' not found.\n", av);
}
continue;
}
if (lflag && !locatestring(path, localprefix, MATCH_AT_FIRST))
continue;
data.count = 0;
parse_file(path, 0, put_syms, &data);
count += data.count;
file_count++;
}
args_close();
parser_exit();
/*
* Settlement
*/
if (data.dbop != NULL)
dbop_close(data.dbop);
gpath_close();
convert_close(data.cv);
strbuf_close(sb);
if (vflag) {
print_count(count);
fprintf(stderr, " (no index used).\n");
}
}
int
main(int argc, char **argv)
{
char dbpath[MAXPATHLEN];
char cwd[MAXPATHLEN];
STRBUF *sb = strbuf_open(0);
int optchar;
int option_index = 0;
STATISTICS_TIME *tim;
while ((optchar = getopt_long(argc, argv, "cd:f:iuIn:oOqvwse", long_options, &option_index)) != EOF) {
switch (optchar) {
case 0:
/* already flags set */
break;
case OPT_CONFIG:
show_config = 1;
if (optarg)
config_name = optarg;
break;
case OPT_GTAGSCONF:
gtagsconf = optarg;
break;
case OPT_GTAGSLABEL:
gtagslabel = optarg;
break;
case OPT_PATH:
do_path = 1;
if (!strcmp("absolute", optarg))
convert_type = PATH_ABSOLUTE;
else if (!strcmp("relative", optarg))
convert_type = PATH_RELATIVE;
else if (!strcmp("through", optarg))
convert_type = PATH_THROUGH;
else
die("Unknown path type.");
break;
case OPT_SINGLE_UPDATE:
iflag++;
single_update = optarg;
break;
case OPT_ENCODE_PATH:
if (strlen(optarg) > 255)
die("too many encode chars.");
if (strchr(optarg, '/') || strchr(optarg, '.'))
die("cannot encode '/' and '.' in the path.");
set_encode_chars((unsigned char *)optarg);
break;
case 'c':
cflag++;
break;
case 'd':
dump_target = optarg;
break;
case 'f':
file_list = optarg;
break;
case 'i':
iflag++;
break;
case 'u':
uflag++;
iflag++;
break;
case 'I':
Iflag++;
break;
case 'o':
/*
* Though the -o(--omit-gsyms) was removed, this code
* is left for compatibility.
*/
break;
case 'O':
Oflag++;
break;
case 'q':
qflag++;
setquiet();
break;
case 'w':
wflag++;
break;
case 'v':
vflag++;
setverbose();
break;
default:
usage();
break;
}
}
if (gtagsconf) {
char path[MAXPATHLEN];
if (realpath(gtagsconf, path) == NULL)
die("%s not found.", gtagsconf);
set_env("GTAGSCONF", path);
}
if (gtagslabel) {
set_env("GTAGSLABEL", gtagslabel);
}
if (qflag)
vflag = 0;
if (show_version)
version(NULL, vflag);
if (show_help)
help();
argc -= optind;
argv += optind;
/* If dbpath is specified, -O(--objdir) option is ignored. */
if (argc > 0)
Oflag = 0;
if (show_config) {
if (config_name)
printconf(config_name);
else
fprintf(stdout, "%s\n", getconfline());
exit(0);
} else if (do_path) {
/*
* This is the main body of path filter.
* This code extract path name from tag line and
* replace it with the relative or the absolute path name.
*
* By default, if we are in src/ directory, the output
* should be converted like follws:
*
* main 10 ./src/main.c main(argc, argv)\n
* main 22 ./libc/func.c main(argc, argv)\n
* v
* main 10 main.c main(argc, argv)\n
* main 22 ../libc/func.c main(argc, argv)\n
*
* Similarly, the --path=absolute option specified, then
* v
* main 10 /prj/xxx/src/main.c main(argc, argv)\n
* main 22 /prj/xxx/libc/func.c main(argc, argv)\n
*/
STRBUF *ib = strbuf_open(MAXBUFLEN);
CONVERT *cv;
char *ctags_x;
if (argc < 3)
die("gtags --path: 3 arguments needed.");
cv = convert_open(convert_type, FORMAT_CTAGS_X, argv[0], argv[1], argv[2], stdout);
while ((ctags_x = strbuf_fgets(ib, stdin, STRBUF_NOCRLF)) != NULL)
convert_put(cv, ctags_x);
convert_close(cv);
strbuf_close(ib);
exit(0);
} else if (dump_target) {
/*
* Dump a tag file.
*/
DBOP *dbop = NULL;
const char *dat = 0;
int is_gpath = 0;
char* target_file = NULL;
if (!test("f", dump_target)) {
target_file = strchr(dump_target, ':');
if (target_file == NULL)
die("file '%s' not found", dump_target);
*target_file++ = 0; //move to the next char, which starts the target file.
if (!test("f", dump_target)) {
die("file '%s' not found.", dump_target);
}
}
if ((dbop = dbop_open(dump_target, 0, 0, DBOP_RAW)) == NULL)
die("file '%s' is not a tag file.", dump_target);
/*
* The file which has a NEXTKEY record is GPATH.
*/
if (dbop_get(dbop, NEXTKEY))
is_gpath = 1;
if (target_file && !is_gpath) {
die("dump target_file can only be used with GPATH");
}
if (target_file) {
dat = dbop_get(dbop, target_file);
if (dat == NULL) {
die("target_file %s not found in GPATH", target_file);
}
time_t t = gpath_mtime(dbop, target_file);
printf("%d\n", t);
} else {
for (dat = dbop_first(dbop, NULL, NULL, 0); dat != NULL; dat = dbop_next(dbop)) {
const char *flag = is_gpath ? dbop_getflag(dbop) : "";
if (*flag)
if (is_gpath) {
time_t t = gpath_mtime(dbop, dbop->lastkey);
printf("%s\t%s\t%s\t%s\n", dbop->lastkey, dat, flag, ctime(&t));
} else
printf("%s\t%s\t%s\n", dbop->lastkey, dat, flag);
else
printf("%s\t%s\n", dbop->lastkey, dat);
}
}
dbop_close(dbop);
exit(0);
} else if (Iflag) {
if (!usable("mkid"))
die("mkid not found.");
}
/*
* If 'gtags.files' exists, use it as a file list.
* If the file_list other than "-" is given, it must be readable file.
*/
if (file_list == NULL && test("f", GTAGSFILES))
file_list = GTAGSFILES;
if (file_list && strcmp(file_list, "-")) {
if (test("d", file_list))
die("'%s' is a directory.", file_list);
else if (!test("f", file_list))
die("'%s' not found.", file_list);
else if (!test("r", file_list))
die("'%s' is not readable.", file_list);
}
/*
* Regularize the path name for single updating (--single-update).
*/
if (single_update) {
static char regular_path_name[MAXPATHLEN];
char *p = single_update;
if (!test("f", p))
die("'%s' not found.", p);
if (isabspath(p))
die("--single-update requires relative path name.");
if (!(p[0] == '.' && p[1] == '/')) {
snprintf(regular_path_name, MAXPATHLEN, "./%s", p);
p = regular_path_name;
}
single_update = p;
}
if (!getcwd(cwd, MAXPATHLEN))
die("cannot get current directory.");
canonpath(cwd);
/*
* Decide directory (dbpath) in which gtags make tag files.
*
* Gtags create tag files at current directory by default.
* If dbpath is specified as an argument then use it.
* If the -i option specified and both GTAGS and GRTAGS exists
* at one of the candidate directories then gtags use existing
* tag files.
*/
if (iflag) {
if (argc > 0)
realpath(*argv, dbpath);
else if (!gtagsexist(cwd, dbpath, MAXPATHLEN, vflag))
strlimcpy(dbpath, cwd, sizeof(dbpath));
} else {
if (argc > 0)
realpath(*argv, dbpath);
else if (Oflag) {
char *objdir = getobjdir(cwd, vflag);
if (objdir == NULL)
die("Objdir not found.");
strlimcpy(dbpath, objdir, sizeof(dbpath));
} else
strlimcpy(dbpath, cwd, sizeof(dbpath));
}
if (iflag && (!test("f", makepath(dbpath, dbname(GTAGS), NULL)) ||
!test("f", makepath(dbpath, dbname(GRTAGS), NULL)) ||
!test("f", makepath(dbpath, dbname(GPATH), NULL)))) {
if (wflag)
warning("GTAGS, GRTAGS or GPATH not found. -i option ignored.");
iflag = 0;
}
if (!test("d", dbpath))
die("directory '%s' not found.", dbpath);
if (vflag)
fprintf(stderr, "[%s] Gtags started.\n", now());
/*
* load configuration file.
*/
openconf();
if (getconfb("extractmethod"))
extractmethod = 1;
strbuf_reset(sb);
if (getconfs("langmap", sb))
langmap = check_strdup(strbuf_value(sb));
strbuf_reset(sb);
if (getconfs("gtags_parser", sb))
gtags_parser = check_strdup(strbuf_value(sb));
/*
* initialize parser.
*/
if (vflag && gtags_parser)
fprintf(stderr, " Using plug-in parser.\n");
parser_init(langmap, gtags_parser);
if (vflag && file_list)
fprintf(stderr, " Using '%s' as a file list.\n", file_list);
/*
* Start statistics.
*/
init_statistics();
/*
* incremental update.
*/
if (iflag) {
/*
* Version check. If existing tag files are old enough
* gtagsopen() abort with error message.
*/
GTOP *gtop = gtags_open(dbpath, cwd, GTAGS, GTAGS_MODIFY, 0);
gtags_close(gtop);
/*
* GPATH is needed for incremental updating.
* Gtags check whether or not GPATH exist, since it may be
* removed by mistake.
*/
if (!test("f", makepath(dbpath, dbname(GPATH), NULL)))
die("Old version tag file found. Please remake it.");
(void)incremental(dbpath, cwd);
print_statistics(statistics);
exit(0);
}
/*
* create GTAGS and GRTAGS
*/
createtags(dbpath, cwd);
/*
* create idutils index.
*/
if (Iflag) {
tim = statistics_time_start("Time of creating ID");
if (vflag)
fprintf(stderr, "[%s] Creating indexes for idutils.\n", now());
strbuf_reset(sb);
strbuf_puts(sb, "mkid");
if (vflag)
strbuf_puts(sb, " -v");
strbuf_sprintf(sb, " --file='%s/ID'", dbpath);
if (vflag) {
#ifdef __DJGPP__
if (is_unixy()) /* test for 4DOS as well? */
#endif
strbuf_puts(sb, " 1>&2");
} else {
strbuf_puts(sb, " >/dev/null");
}
if (debug)
fprintf(stderr, "executing mkid like: %s\n", strbuf_value(sb));
if (system(strbuf_value(sb)))
die("mkid failed: %s", strbuf_value(sb));
if (chmod(makepath(dbpath, "ID", NULL), 0644) < 0)
die("cannot chmod ID file.");
statistics_time_end(tim);
}
if (vflag)
fprintf(stderr, "[%s] Done.\n", now());
closeconf();
strbuf_close(sb);
print_statistics(statistics);
return 0;
}
int
main(int argc, char **argv)
{
char dbpath[MAXPATHLEN];
char cwd[MAXPATHLEN];
STRBUF *sb = strbuf_open(0);
int optchar;
int option_index = 0;
STATISTICS_TIME *tim;
/*
* Setup GTAGSCONF and GTAGSLABEL environment variable
* according to the --gtagsconf and --gtagslabel option.
*/
preparse_options(argc, argv);
/*
* Get the project root directory.
*/
if (!vgetcwd(cwd, MAXPATHLEN))
die("cannot get current directory.");
canonpath(cwd);
/*
* Load configuration file.
*/
openconf(cwd);
configuration();
setenv_from_config();
{
char *env = getenv("GTAGS_OPTIONS");
if (env && *env)
argv = prepend_options(&argc, argv, env);
}
logging_arguments(argc, argv);
while ((optchar = getopt_long(argc, argv, "cd:f:iIn:oOqvwse", long_options, &option_index)) != EOF) {
switch (optchar) {
case 0:
/* already flags set */
break;
case OPT_CONFIG:
show_config = 1;
if (optarg)
config_name = optarg;
break;
case OPT_GTAGSCONF:
case OPT_GTAGSLABEL:
/* These options are already parsed in preparse_options() */
break;
case OPT_SINGLE_UPDATE:
iflag++;
single_update = optarg;
break;
case OPT_ACCEPT_DOTFILES:
set_accept_dotfiles();
break;
case 'c':
cflag++;
break;
case 'd':
dump_target = optarg;
break;
case 'f':
file_list = optarg;
break;
case 'i':
iflag++;
break;
case 'I':
Iflag++;
break;
case 'o':
/*
* Though the -o(--omit-gsyms) was removed, this code
* is left for compatibility.
*/
break;
case 'O':
Oflag++;
break;
case 'q':
qflag++;
setquiet();
break;
case 'w':
wflag++;
break;
case 'v':
vflag++;
setverbose();
break;
default:
usage();
break;
}
}
if (qflag)
vflag = 0;
if (show_version)
version(NULL, vflag);
if (show_help)
help();
argc -= optind;
argv += optind;
/* If dbpath is specified, -O(--objdir) option is ignored. */
if (argc > 0)
Oflag = 0;
if (show_config) {
openconf(setupdbpath(0) == 0 ? get_root() : NULL);
if (config_name)
printconf(config_name);
else
fprintf(stdout, "%s\n", getconfline());
exit(0);
} else if (dump_target) {
/*
* Dump a tag file.
*/
DBOP *dbop = NULL;
const char *dat = 0;
int is_gpath = 0;
if (!test("f", dump_target))
die("file '%s' not found.", dump_target);
if ((dbop = dbop_open(dump_target, 0, 0, DBOP_RAW)) == NULL)
die("file '%s' is not a tag file.", dump_target);
/*
* The file which has a NEXTKEY record is GPATH.
*/
if (dbop_get(dbop, NEXTKEY))
is_gpath = 1;
for (dat = dbop_first(dbop, NULL, NULL, 0); dat != NULL; dat = dbop_next(dbop)) {
const char *flag = is_gpath ? dbop_getflag(dbop) : "";
if (*flag)
printf("%s\t%s\t%s\n", dbop->lastkey, dat, flag);
else
printf("%s\t%s\n", dbop->lastkey, dat);
}
dbop_close(dbop);
exit(0);
} else if (Iflag) {
#define REQUIRED_MKID_VERSION "4.5"
char *p;
if (!usable("mkid"))
die("mkid not found.");
if (read_first_line("mkid --version", sb))
die("mkid cannot executed.");
p = strrchr(strbuf_value(sb), ' ');
if (p == NULL)
die("invalid version string of mkid: %s", strbuf_value(sb));
switch (check_version(p + 1, REQUIRED_MKID_VERSION)
#ifdef _WIN32
|| strcmp(p + 1, "3.2.99") == 0
#endif
) {
case 1:
break; /* OK */
case 0:
die("mkid version %s or later is required.", REQUIRED_MKID_VERSION);
default:
die("invalid version string of mkid: %s", strbuf_value(sb));
}
}
/*
* If 'gtags.files' exists, use it as a file list.
* If the file_list other than "-" is given, it must be readable file.
*/
if (file_list == NULL && test("f", GTAGSFILES))
file_list = GTAGSFILES;
if (file_list && strcmp(file_list, "-")) {
if (test("d", file_list))
die("'%s' is a directory.", file_list);
else if (!test("f", file_list))
die("'%s' not found.", file_list);
else if (!test("r", file_list))
die("'%s' is not readable.", file_list);
}
/*
* Regularize the path name for single updating (--single-update).
*/
if (single_update) {
static char regular_path_name[MAXPATHLEN];
char *p = single_update;
if (!test("f", p))
die("'%s' not found.", p);
#if _WIN32 || __DJGPP__
for (; *p; p++)
if (*p == '\\')
*p = '/';
p = single_update;
#define LOCATEFLAG MATCH_AT_FIRST|IGNORE_CASE
#else
#define LOCATEFLAG MATCH_AT_FIRST
#endif
if (isabspath(p)) {
char *q = locatestring(p, cwd, LOCATEFLAG);
if (q && *q == '/')
snprintf(regular_path_name, MAXPATHLEN, "./%s", q + 1);
else
die("path '%s' is out of the project.", p);
} else {
if (p[0] == '.' && p[1] == '/')
snprintf(regular_path_name, MAXPATHLEN, "%s", p);
else
snprintf(regular_path_name, MAXPATHLEN, "./%s", p);
}
single_update = regular_path_name;
}
/*
* Decide directory (dbpath) in which gtags make tag files.
*
* Gtags create tag files at current directory by default.
* If dbpath is specified as an argument then use it.
* If the -i option specified and both GTAGS and GRTAGS exists
* at one of the candidate directories then gtags use existing
* tag files.
*/
if (iflag) {
if (argc > 0)
realpath(*argv, dbpath);
else if (!gtagsexist(cwd, dbpath, MAXPATHLEN, vflag))
strlimcpy(dbpath, cwd, sizeof(dbpath));
} else {
if (argc > 0)
realpath(*argv, dbpath);
else if (Oflag) {
char *objdir = getobjdir(cwd, vflag);
if (objdir == NULL)
die("Objdir not found.");
strlimcpy(dbpath, objdir, sizeof(dbpath));
} else
strlimcpy(dbpath, cwd, sizeof(dbpath));
}
if (iflag && (!test("f", makepath(dbpath, dbname(GTAGS), NULL)) ||
!test("f", makepath(dbpath, dbname(GRTAGS), NULL)) ||
!test("f", makepath(dbpath, dbname(GPATH), NULL)))) {
if (wflag)
warning("GTAGS, GRTAGS or GPATH not found. -i option ignored.");
iflag = 0;
}
if (!test("d", dbpath))
die("directory '%s' not found.", dbpath);
if (vflag)
fprintf(stderr, "[%s] Gtags started.\n", now());
/*
* initialize parser.
*/
if (vflag && gtags_parser)
fprintf(stderr, " Using plug-in parser.\n");
parser_init(langmap, gtags_parser);
if (vflag && file_list)
fprintf(stderr, " Using '%s' as a file list.\n", file_list);
/*
* Start statistics.
*/
init_statistics();
/*
* incremental update.
*/
if (iflag) {
/*
* Version check. If existing tag files are old enough
* gtagsopen() abort with error message.
*/
GTOP *gtop = gtags_open(dbpath, cwd, GTAGS, GTAGS_MODIFY, 0);
gtags_close(gtop);
/*
* GPATH is needed for incremental updating.
* Gtags check whether or not GPATH exist, since it may be
* removed by mistake.
*/
if (!test("f", makepath(dbpath, dbname(GPATH), NULL)))
die("Old version tag file found. Please remake it.");
(void)incremental(dbpath, cwd);
print_statistics(statistics);
exit(0);
}
/*
* create GTAGS and GRTAGS
*/
createtags(dbpath, cwd);
/*
* create idutils index.
*/
if (Iflag) {
FILE *op;
GFIND *gp;
const char *path;
tim = statistics_time_start("Time of creating ID");
if (vflag)
fprintf(stderr, "[%s] Creating indexes for idutils.\n", now());
strbuf_reset(sb);
/*
* Since idutils stores the value of PWD in ID file, we need to
* force idutils to follow our style.
*/
#if _WIN32 || __DJGPP__
strbuf_puts(sb, "mkid --files0-from=-");
#else
strbuf_sprintf(sb, "PWD=%s mkid --files0-from=-", quote_shell(cwd));
#endif
if (vflag)
strbuf_puts(sb, " -v");
strbuf_sprintf(sb, " --file=%s/ID", quote_shell(dbpath));
if (vflag) {
#ifdef __DJGPP__
if (is_unixy()) /* test for 4DOS as well? */
#endif
strbuf_puts(sb, " 1>&2");
} else {
strbuf_puts(sb, " >" NULL_DEVICE);
#ifdef __DJGPP__
if (is_unixy()) /* test for 4DOS as well? */
#endif
strbuf_puts(sb, " 2>&1");
}
if (debug)
fprintf(stderr, "executing mkid like: %s\n", strbuf_value(sb));
op = popen(strbuf_value(sb), "w");
if (op == NULL)
die("cannot execute '%s'.", strbuf_value(sb));
gp = gfind_open(dbpath, NULL, GPATH_BOTH);
while ((path = gfind_read(gp)) != NULL) {
fputs(path, op);
fputc('\0', op);
}
gfind_close(gp);
if (pclose(op) != 0)
die("terminated abnormally '%s' (errno = %d).", strbuf_value(sb), errno);
if (test("f", makepath(dbpath, "ID", NULL)))
if (chmod(makepath(dbpath, "ID", NULL), 0644) < 0)
die("cannot chmod ID file.");
statistics_time_end(tim);
}
if (vflag)
fprintf(stderr, "[%s] Done.\n", now());
closeconf();
strbuf_close(sb);
print_statistics(statistics);
return 0;
}