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|
/*
* Copyright (c) 1992, Brian Berliner and Jeff Polk
* Copyright (c) 1989-1992, Brian Berliner
*
* You may distribute under the terms of the GNU General Public License
* as specified in the README file that comes with the CVS 1.4 kit.
*
* Modules
*
* Functions for accessing the modules file.
*
* The modules file supports basically three formats of lines:
* key [options] directory files... [ -x directory [files] ] ...
* key [options] directory [ -x directory [files] ] ...
* key -a aliases...
*
* The -a option allows an aliasing step in the parsing of the modules
* file. The "aliases" listed on a line following the -a are
* processed one-by-one, as if they were specified as arguments on the
* command line.
*/
#include "cvs.h"
#include "savecwd.h"
/* Defines related to the syntax of the modules file. */
/* Options in modules file. Note that it is OK to use GNU getopt features;
we already are arranging to make sure we are using the getopt distributed
with CVS. */
#define CVSMODULE_OPTS "+ad:i:lo:e:s:t:u:"
/* Special delimiter. */
#define CVSMODULE_SPEC '&'
struct sortrec
{
char *modname;
char *status;
char *rest;
char *comment;
};
static int sort_order PROTO((const PTR l, const PTR r));
static void save_d PROTO((char *k, int ks, char *d, int ds));
/*
* Open the modules file, and die if the CVSROOT environment variable
* was not set. If the modules file does not exist, that's fine, and
* a warning message is displayed and a NULL is returned.
*/
DBM *
open_module ()
{
char mfile[PATH_MAX];
if (CVSroot == NULL)
{
(void) fprintf (stderr,
"%s: must set the CVSROOT environment variable\n",
program_name);
error (1, 0, "or specify the '-d' option to %s", program_name);
}
(void) sprintf (mfile, "%s/%s/%s", CVSroot, CVSROOTADM, CVSROOTADM_MODULES);
return (dbm_open (mfile, O_RDONLY, 0666));
}
/*
* Close the modules file, if the open succeeded, that is
*/
void
close_module (db)
DBM *db;
{
if (db != NULL)
dbm_close (db);
}
/*
* This is the recursive function that processes a module name.
* It calls back the passed routine for each directory of a module
* It runs the post checkout or post tag proc from the modules file
*/
int
do_module (db, mname, m_type, msg, callback_proc, where,
shorten, local_specified, run_module_prog, extra_arg)
DBM *db;
char *mname;
enum mtype m_type;
char *msg;
CALLBACKPROC callback_proc;
char *where;
int shorten;
int local_specified;
int run_module_prog;
char *extra_arg;
{
char *checkin_prog = NULL;
char *checkout_prog = NULL;
char *export_prog = NULL;
char *tag_prog = NULL;
char *update_prog = NULL;
struct saved_cwd cwd;
char *line;
int modargc;
int xmodargc;
char **modargv;
char *xmodargv[MAXFILEPERDIR];
char *value;
char *zvalue;
char *mwhere = NULL;
char *mfile = NULL;
char *spec_opt = NULL;
char xvalue[PATH_MAX];
int alias = 0;
datum key, val;
char *cp;
int c, err = 0;
#ifdef SERVER_SUPPORT
if (trace)
{
fprintf (stderr, "%s%c-> do_module (%s, %s, %s, %s)\n",
error_use_protocol ? "E " : "",
(server_active) ? 'S' : ' ',
mname, msg, where ? where : "",
extra_arg ? extra_arg : "");
}
#endif
/* if this is a directory to ignore, add it to that list */
if (mname[0] == '!' && mname[1] != '\0')
{
ign_dir_add (mname+1);
return(err);
}
/* strip extra stuff from the module name */
strip_path (mname);
/*
* Look up the module using the following scheme:
* 1) look for mname as a module name
* 2) look for mname as a directory
* 3) look for mname as a file
* 4) take mname up to the first slash and look it up as a module name
* (this is for checking out only part of a module)
*/
/* look it up as a module name */
key.dptr = mname;
key.dsize = strlen (key.dptr);
if (db != NULL)
val = dbm_fetch (db, key);
else
val.dptr = NULL;
if (val.dptr != NULL)
{
/* null terminate the value XXX - is this space ours? */
val.dptr[val.dsize] = '\0';
/* If the line ends in a comment, strip it off */
if ((cp = strchr (val.dptr, '#')) != NULL)
{
do
*cp-- = '\0';
while (isspace (*cp));
}
else
{
/* Always strip trailing spaces */
cp = strchr (val.dptr, '\0');
while (cp > val.dptr && isspace(*--cp))
*cp = '\0';
}
value = val.dptr;
mwhere = xstrdup (mname);
goto found;
}
else
{
char file[PATH_MAX];
char attic_file[PATH_MAX];
char *acp;
/* check to see if mname is a directory or file */
(void) sprintf (file, "%s/%s", CVSroot, mname);
if ((acp = strrchr (mname, '/')) != NULL)
{
*acp = '\0';
(void) sprintf (attic_file, "%s/%s/%s/%s%s", CVSroot, mname,
CVSATTIC, acp + 1, RCSEXT);
*acp = '/';
}
else
(void) sprintf (attic_file, "%s/%s/%s%s", CVSroot, CVSATTIC,
mname, RCSEXT);
if (isdir (file))
{
value = mname;
goto found;
}
else
{
(void) strcat (file, RCSEXT);
if (isfile (file) || isfile (attic_file))
{
/* if mname was a file, we have to split it into "dir file" */
if ((cp = strrchr (mname, '/')) != NULL && cp != mname)
{
char *slashp;
/* put the ' ' in a copy so we don't mess up the original */
value = strcpy (xvalue, mname);
slashp = strrchr (value, '/');
*slashp = ' ';
}
else
{
/*
* the only '/' at the beginning or no '/' at all
* means the file we are interested in is in CVSROOT
* itself so the directory should be '.'
*/
if (cp == mname)
{
/* drop the leading / if specified */
value = strcpy (xvalue, ". ");
(void) strcat (xvalue, mname + 1);
}
else
{
/* otherwise just copy it */
value = strcpy (xvalue, ". ");
(void) strcat (xvalue, mname);
}
}
goto found;
}
}
}
/* look up everything to the first / as a module */
if (mname[0] != '/' && (cp = strchr (mname, '/')) != NULL)
{
/* Make the slash the new end of the string temporarily */
*cp = '\0';
key.dptr = mname;
key.dsize = strlen (key.dptr);
/* do the lookup */
if (db != NULL)
val = dbm_fetch (db, key);
else
val.dptr = NULL;
/* if we found it, clean up the value and life is good */
if (val.dptr != NULL)
{
char *cp2;
/* null terminate the value XXX - is this space ours? */
val.dptr[val.dsize] = '\0';
/* If the line ends in a comment, strip it off */
if ((cp2 = strchr (val.dptr, '#')) != NULL)
{
do
*cp2-- = '\0';
while (isspace (*cp2));
}
value = val.dptr;
/* mwhere gets just the module name */
mwhere = xstrdup (mname);
mfile = cp + 1;
/* put the / back in mname */
*cp = '/';
goto found;
}
/* put the / back in mname */
*cp = '/';
}
/* if we got here, we couldn't find it using our search, so give up */
error (0, 0, "cannot find module `%s' - ignored", mname);
err++;
if (mwhere)
free (mwhere);
return (err);
/*
* At this point, we found what we were looking for in one
* of the many different forms.
*/
found:
/* remember where we start */
if (save_cwd (&cwd))
exit (EXIT_FAILURE);
/* copy value to our own string since if we go recursive we'll be
really screwed if we do another dbm lookup */
zvalue = xstrdup (value);
value = zvalue;
/* search the value for the special delimiter and save for later */
if ((cp = strchr (value, CVSMODULE_SPEC)) != NULL)
{
*cp = '\0'; /* null out the special char */
spec_opt = cp + 1; /* save the options for later */
if (cp != value) /* strip whitespace if necessary */
while (isspace (*--cp))
*cp = '\0';
if (cp == value)
{
/*
* we had nothing but special options, so skip arg
* parsing and regular stuff entirely
*
* If there were only special ones though, we must
* make the appropriate directory and cd to it
*/
char *dir;
/* XXX - XXX - MAJOR HACK - DO NOT SHIP - this needs to
be !pipeout, but we don't know that here yet */
if (!run_module_prog)
goto out;
dir = where ? where : mname;
/* XXX - think about making null repositories at each dir here
instead of just at the bottom */
make_directories (dir);
if (chdir (dir) < 0)
{
error (0, errno, "cannot chdir to %s", dir);
spec_opt = NULL;
err++;
goto out;
}
if (!isfile (CVSADM))
{
char nullrepos[PATH_MAX];
(void) sprintf (nullrepos, "%s/%s/%s", CVSroot,
CVSROOTADM, CVSNULLREPOS);
if (!isfile (nullrepos))
{
mode_t omask;
omask = umask (cvsumask);
(void) CVS_MKDIR (nullrepos, 0777);
(void) umask (omask);
}
if (!isdir (nullrepos))
error (1, 0, "there is no repository %s", nullrepos);
Create_Admin (".", dir,
nullrepos, (char *) NULL, (char *) NULL);
if (!noexec)
{
FILE *fp;
fp = open_file (CVSADM_ENTSTAT, "w+");
if (fclose (fp) == EOF)
error (1, errno, "cannot close %s", CVSADM_ENTSTAT);
#ifdef SERVER_SUPPORT
if (server_active)
server_set_entstat (dir, nullrepos);
#endif
}
}
out:
goto do_special;
}
}
/* don't do special options only part of a module was specified */
if (mfile != NULL)
spec_opt = NULL;
/*
* value now contains one of the following:
* 1) dir
* 2) dir file
* 3) the value from modules without any special args
* [ args ] dir [file] [file] ...
* or -a module [ module ] ...
*/
/* Put the value on a line with XXX prepended for getopt to eat */
line = xmalloc (strlen (value) + 10);
(void) sprintf (line, "%s %s", "XXX", value);
/* turn the line into an argv[] array */
line2argv (&xmodargc, xmodargv, line);
free (line);
modargc = xmodargc;
modargv = xmodargv;
/* parse the args */
optind = 1;
while ((c = getopt (modargc, modargv, CVSMODULE_OPTS)) != -1)
{
switch (c)
{
case 'a':
alias = 1;
break;
case 'd':
if (mwhere)
free (mwhere);
mwhere = xstrdup (optarg);
break;
case 'i':
checkin_prog = optarg;
break;
case 'l':
local_specified = 1;
break;
case 'o':
checkout_prog = optarg;
break;
case 'e':
export_prog = optarg;
break;
case 't':
tag_prog = optarg;
break;
case 'u':
update_prog = optarg;
break;
case '?':
error (0, 0,
"modules file has invalid option for key %s value %s",
key.dptr, val.dptr);
err++;
if (mwhere)
free (mwhere);
free (zvalue);
free_cwd (&cwd);
return (err);
}
}
modargc -= optind;
modargv += optind;
if (modargc == 0)
{
error (0, 0, "modules file missing directory for module %s", mname);
if (mwhere)
free (mwhere);
free (zvalue);
free_cwd (&cwd);
return (++err);
}
/* if this was an alias, call ourselves recursively for each module */
if (alias)
{
int i;
for (i = 0; i < modargc; i++)
{
if (strcmp (mname, modargv[i]) == 0)
error (0, 0,
"module `%s' in modules file contains infinite loop",
mname);
else
err += do_module (db, modargv[i], m_type, msg, callback_proc,
where, shorten, local_specified,
run_module_prog, extra_arg);
}
if (mwhere)
free (mwhere);
free (zvalue);
free_cwd (&cwd);
return (err);
}
/* otherwise, process this module */
err += callback_proc (&modargc, modargv, where, mwhere, mfile, shorten,
local_specified, mname, msg);
#if 0
/* FIXME: I've fixed this so that the correct arguments are called,
but now this fails because there is code below this point that
uses optarg values extracted from the arg vector. */
free_names (&xmodargc, xmodargv);
#endif
/* if there were special include args, process them now */
do_special:
/* blow off special options if -l was specified */
if (local_specified)
spec_opt = NULL;
while (spec_opt != NULL)
{
char *next_opt;
cp = strchr (spec_opt, CVSMODULE_SPEC);
if (cp != NULL)
{
/* save the beginning of the next arg */
next_opt = cp + 1;
/* strip whitespace off the end */
do
*cp = '\0';
while (isspace (*--cp));
}
else
next_opt = NULL;
/* strip whitespace from front */
while (isspace (*spec_opt))
spec_opt++;
if (*spec_opt == '\0')
error (0, 0, "Mal-formed %c option for module %s - ignored",
CVSMODULE_SPEC, mname);
else
err += do_module (db, spec_opt, m_type, msg, callback_proc,
(char *) NULL, 0, local_specified,
run_module_prog, extra_arg);
spec_opt = next_opt;
}
/* write out the checkin/update prog files if necessary */
#ifdef SERVER_SUPPORT
if (err == 0 && !noexec && m_type == CHECKOUT && server_expanding)
{
if (checkin_prog != NULL)
server_prog (where ? where : mname, checkin_prog, PROG_CHECKIN);
if (update_prog != NULL)
server_prog (where ? where : mname, update_prog, PROG_UPDATE);
}
else
#endif
if (err == 0 && !noexec && m_type == CHECKOUT && run_module_prog)
{
FILE *fp;
if (checkin_prog != NULL)
{
fp = open_file (CVSADM_CIPROG, "w+");
(void) fprintf (fp, "%s\n", checkin_prog);
if (fclose (fp) == EOF)
error (1, errno, "cannot close %s", CVSADM_CIPROG);
}
if (update_prog != NULL)
{
fp = open_file (CVSADM_UPROG, "w+");
(void) fprintf (fp, "%s\n", update_prog);
if (fclose (fp) == EOF)
error (1, errno, "cannot close %s", CVSADM_UPROG);
}
}
/* cd back to where we started */
if (restore_cwd (&cwd, NULL))
exit (EXIT_FAILURE);
free_cwd (&cwd);
/* run checkout or tag prog if appropriate */
if (err == 0 && run_module_prog)
{
if ((m_type == TAG && tag_prog != NULL) ||
(m_type == CHECKOUT && checkout_prog != NULL) ||
(m_type == EXPORT && export_prog != NULL))
{
/*
* If a relative pathname is specified as the checkout, tag
* or export proc, try to tack on the current "where" value.
* if we can't find a matching program, just punt and use
* whatever is specified in the modules file.
*/
char real_prog[PATH_MAX];
char *prog = (m_type == TAG ? tag_prog :
(m_type == CHECKOUT ? checkout_prog : export_prog));
char *real_where = (where != NULL ? where : mwhere);
if ((*prog != '/') && (*prog != '.'))
{
(void) sprintf (real_prog, "%s/%s", real_where, prog);
if (isfile (real_prog))
prog = real_prog;
}
run_setup ("%s %s", prog, real_where);
if (extra_arg)
run_arg (extra_arg);
if (!quiet)
{
(void) printf ("%s %s: Executing '", program_name,
command_name);
run_print (stdout);
(void) printf ("'\n");
}
err += run_exec (RUN_TTY, RUN_TTY, RUN_TTY, RUN_NORMAL);
}
}
/* clean up */
if (mwhere)
free (mwhere);
free (zvalue);
return (err);
}
/* - Read all the records from the modules database into an array.
- Sort the array depending on what format is desired.
- Print the array in the format desired.
Currently, there are only two "desires":
1. Sort by module name and format the whole entry including switches,
files and the comment field: (Including aliases)
modulename -s switches, one per line, even if
-i it has many switches.
Directories and files involved, formatted
to cover multiple lines if necessary.
# Comment, also formatted to cover multiple
# lines if necessary.
2. Sort by status field string and print: (*not* including aliases)
modulename STATUS Directories and files involved, formatted
to cover multiple lines if necessary.
# Comment, also formatted to cover multiple
# lines if necessary.
*/
static struct sortrec *s_head;
static int s_max = 0; /* Number of elements allocated */
static int s_count = 0; /* Number of elements used */
static int Status; /* Nonzero if the user is
interested in status
information as well as
module name */
static char def_status[] = "NONE";
/* Sort routine for qsort:
- If we want the "Status" field to be sorted, check it first.
- Then compare the "module name" fields. Since they are unique, we don't
have to look further.
*/
static int
sort_order (l, r)
const PTR l;
const PTR r;
{
int i;
const struct sortrec *left = (const struct sortrec *) l;
const struct sortrec *right = (const struct sortrec *) r;
if (Status)
{
/* If Sort by status field, compare them. */
if ((i = strcmp (left->status, right->status)) != 0)
return (i);
}
return (strcmp (left->modname, right->modname));
}
static void
save_d (k, ks, d, ds)
char *k;
int ks;
char *d;
int ds;
{
char *cp, *cp2;
struct sortrec *s_rec;
if (Status && *d == '-' && *(d + 1) == 'a')
return; /* We want "cvs co -s" and it is an alias! */
if (s_count == s_max)
{
s_max += 64;
s_head = (struct sortrec *) xrealloc ((char *) s_head, s_max * sizeof (*s_head));
}
s_rec = &s_head[s_count];
s_rec->modname = cp = xmalloc (ks + 1);
(void) strncpy (cp, k, ks);
*(cp + ks) = '\0';
s_rec->rest = cp2 = xmalloc (ds + 1);
cp = d;
*(cp + ds) = '\0'; /* Assumes an extra byte at end of static dbm buffer */
while (isspace (*cp))
cp++;
/* Turn <spaces> into one ' ' -- makes the rest of this routine simpler */
while (*cp)
{
if (isspace (*cp))
{
*cp2++ = ' ';
while (isspace (*cp))
cp++;
}
else
*cp2++ = *cp++;
}
*cp2 = '\0';
/* Look for the "-s statusvalue" text */
if (Status)
{
s_rec->status = def_status;
/* Minor kluge, but general enough to maintain */
for (cp = s_rec->rest; (cp2 = strchr (cp, '-')) != NULL; cp = ++cp2)
{
if (*(cp2 + 1) == 's' && *(cp2 + 2) == ' ')
{
s_rec->status = (cp2 += 3);
while (*cp2 != ' ')
cp2++;
*cp2++ = '\0';
cp = cp2;
break;
}
}
}
else
cp = s_rec->rest;
/* Find comment field, clean up on all three sides & compress blanks */
if ((cp2 = cp = strchr (cp, '#')) != NULL)
{
if (*--cp2 == ' ')
*cp2 = '\0';
if (*++cp == ' ')
cp++;
s_rec->comment = cp;
}
else
s_rec->comment = "";
s_count++;
}
/* Print out the module database as we know it. If STATUS is
non-zero, print out status information for each module. */
void
cat_module (status)
int status;
{
DBM *db;
datum key, val;
int i, c, wid, argc, cols = 80, indent, fill;
int moduleargc;
struct sortrec *s_h;
char *cp, *cp2, **argv;
char *line;
char *moduleargv[MAXFILEPERDIR];
#ifdef sun
#ifdef TIOCGSIZE
struct ttysize ts;
(void) ioctl (0, TIOCGSIZE, &ts);
cols = ts.ts_cols;
#endif
#else
#ifdef TIOCGWINSZ
struct winsize ws;
(void) ioctl (0, TIOCGWINSZ, &ws);
cols = ws.ws_col;
#endif
#endif
Status = status;
/* Read the whole modules file into allocated records */
if (!(db = open_module ()))
error (1, 0, "failed to open the modules file");
for (key = dbm_firstkey (db); key.dptr != NULL; key = dbm_nextkey (db))
{
val = dbm_fetch (db, key);
if (val.dptr != NULL)
save_d (key.dptr, key.dsize, val.dptr, val.dsize);
}
/* Sort the list as requested */
qsort ((PTR) s_head, s_count, sizeof (struct sortrec), sort_order);
/*
* Run through the sorted array and format the entries
* indent = space for modulename + space for status field
*/
indent = 12 + (status * 12);
fill = cols - (indent + 2);
for (s_h = s_head, i = 0; i < s_count; i++, s_h++)
{
/* Print module name (and status, if wanted) */
(void) printf ("%-12s", s_h->modname);
if (status)
{
(void) printf (" %-11s", s_h->status);
if (s_h->status != def_status)
*(s_h->status + strlen (s_h->status)) = ' ';
}
/* Parse module file entry as command line and print options */
line = xmalloc (strlen (s_h->modname) + strlen (s_h->rest) + 10);
(void) sprintf (line, "%s %s", s_h->modname, s_h->rest);
line2argv (&moduleargc, moduleargv, line);
free (line);
argc = moduleargc;
argv = moduleargv;
optind = 0;
wid = 0;
while ((c = getopt (argc, argv, CVSMODULE_OPTS)) != -1)
{
if (!status)
{
if (c == 'a' || c == 'l')
{
(void) printf (" -%c", c);
wid += 3; /* Could just set it to 3 */
}
else
{
if (strlen (optarg) + 4 + wid > (unsigned) fill)
{
(void) printf ("\n%*s", indent, "");
wid = 0;
}
(void) printf (" -%c %s", c, optarg);
wid += strlen (optarg) + 4;
}
}
}
argc -= optind;
argv += optind;
/* Format and Print all the files and directories */
for (; argc--; argv++)
{
if (strlen (*argv) + wid > (unsigned) fill)
{
(void) printf ("\n%*s", indent, "");
wid = 0;
}
(void) printf (" %s", *argv);
wid += strlen (*argv) + 1;
}
(void) printf ("\n");
/* Format the comment field -- save_d (), compressed spaces */
for (cp2 = cp = s_h->comment; *cp; cp2 = cp)
{
(void) printf ("%*s # ", indent, "");
if (strlen (cp2) < (unsigned) (fill - 2))
{
(void) printf ("%s\n", cp2);
break;
}
cp += fill - 2;
while (*cp != ' ' && cp > cp2)
cp--;
if (cp == cp2)
{
(void) printf ("%s\n", cp2);
break;
}
*cp++ = '\0';
(void) printf ("%s\n", cp2);
}
free_names(&moduleargc, moduleargv);
}
}
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