Example #1
0
/* ARGSUSED */
static int diff_fileproc (void *callerdat, struct file_info *finfo)
{
    int status, err = 2;		/* 2 == trouble, like rcsdiff */
    Vers_TS *vers;
    enum diff_file empty_file = DIFF_DIFFERENT;
    char *tmp;
    char *fname;
    char *label1;
    char *label2;
    char *default_branch;

    /* Initialize these solely to avoid warnings from gcc -Wall about
       variables that might be used uninitialized.  */
    tmp = NULL;
    fname = NULL;

    user_file_rev = 0;
    vers = Version_TS (finfo, NULL, NULL, NULL, 1, 0, 0);
    if(vers->tag && RCS_isbranch(finfo->rcs, vers->tag))
        default_branch = vers->tag;
    else
        default_branch = NULL;

    if (diff_rev2 != NULL || diff_date2 != NULL)
    {
        /* Skip all the following checks regarding the user file; we're
           not using it.  */
    }
    else if (vers->vn_user == NULL)
    {
        /* The file does not exist in the working directory.  */
        if ((diff_rev1 != NULL || diff_date1 != NULL)
                && vers->srcfile != NULL)
        {
            /* The file does exist in the repository.  */
            if (empty_files)
                empty_file = DIFF_REMOVED;
            else
            {
                int exists;

                exists = 0;
                /* special handling for TAG_HEAD */
                if (diff_rev1 && strcmp (diff_rev1, TAG_HEAD) == 0)
                {
                    char *head =
                        (vers->vn_rcs == NULL
                         ? NULL
                         : RCS_branch_head (vers->srcfile, vers->vn_rcs));
                    exists = head != NULL;
                    if (head != NULL)
                        xfree (head);
                }
                else
                {
                    Vers_TS *xvers;

                    xvers = Version_TS (finfo, NULL, diff_rev1?diff_rev1:default_branch, diff_date1,
                                        1, 0, 0);
                    exists = xvers->vn_rcs != NULL;
                    freevers_ts (&xvers);
                }
                if (exists)
                    error (0, 0,
                           "%s no longer exists, no comparison available",
                           fn_root(finfo->fullname));
                freevers_ts (&vers);
                diff_mark_errors (err);
                return (err);
            }
        }
        else
        {
            error (0, 0, "I know nothing about %s", fn_root(finfo->fullname));
            freevers_ts (&vers);
            diff_mark_errors (err);
            return (err);
        }
    }
    else if (vers->vn_user[0] == '0' && vers->vn_user[1] == '\0')
    {
        if (empty_files)
            empty_file = DIFF_ADDED;
        else
        {
            error (0, 0, "%s is a new entry, no comparison available",
                   fn_root(finfo->fullname));
            freevers_ts (&vers);
            diff_mark_errors (err);
            return (err);
        }
    }
    else if (vers->vn_user[0] == '-')
    {
        if (empty_files)
            empty_file = DIFF_REMOVED;
        else
        {
            error (0, 0, "%s was removed, no comparison available",
                   fn_root(finfo->fullname));
            freevers_ts (&vers);
            diff_mark_errors (err);
            return (err);
        }
    }
    else
    {
        if (vers->vn_rcs == NULL && vers->srcfile == NULL)
        {
            error (0, 0, "cannot find revision control file for %s",
                   fn_root(finfo->fullname));
            freevers_ts (&vers);
            diff_mark_errors (err);
            return (err);
        }
        else
        {
            if (vers->ts_user == NULL)
            {
                error (0, 0, "cannot find %s", fn_root(finfo->fullname));
                freevers_ts (&vers);
                diff_mark_errors (err);
                return (err);
            }
            else if (!strcmp (vers->ts_user, vers->ts_rcs))
            {
                /* The user file matches some revision in the repository
                   Diff against the repository (for remote CVS, we might not
                   have a copy of the user file around).  */
                user_file_rev = vers->vn_user;
            }
        }
    }
    empty_file = diff_file_nodiff (finfo, vers, empty_file, default_branch);
    if (empty_file == DIFF_SAME || empty_file == DIFF_ERROR)
    {
        freevers_ts (&vers);
        if (empty_file == DIFF_SAME)
        {
            /* In the server case, would be nice to send a "Checked-in"
               response, so that the client can rewrite its timestamp.
               server_checked_in by itself isn't the right thing (it
               needs a server_register), but I'm not sure what is.
               It isn't clear to me how "cvs status" handles this (that
               is, for a client which sends Modified not Is-modified to
               "cvs status"), but it does.  */
            return (0);
        }
        else
        {
            diff_mark_errors (err);
            return (err);
        }
    }

    if (empty_file == DIFF_DIFFERENT)
    {
        int dead1, dead2;

        if (use_rev1 == NULL)
            dead1 = 0;
        else
            dead1 = RCS_isdead (vers->srcfile, use_rev1);
        if (use_rev2 == NULL)
            dead2 = 0;
        else
            dead2 = RCS_isdead (vers->srcfile, use_rev2);

        if (dead1 && dead2)
        {
            freevers_ts (&vers);
            return (0);
        }
        else if (dead1)
        {
            if (empty_files)
                empty_file = DIFF_ADDED;
            else
            {
                error (0, 0, "%s is a new entry, no comparison available",
                       fn_root(finfo->fullname));
                freevers_ts (&vers);
                diff_mark_errors (err);
                return (err);
            }
        }
        else if (dead2)
        {
            if (empty_files)
                empty_file = DIFF_REMOVED;
            else
            {
                error (0, 0, "%s was removed, no comparison available",
                       fn_root(finfo->fullname));
                freevers_ts (&vers);
                diff_mark_errors (err);
                return (err);
            }
        }
    }

    /* Output an "Index:" line for patch to use */
    if(!is_rcs)
    {
        cvs_output ("Index: ", 0);
        cvs_output (fn_root(finfo->fullname), 0);
        cvs_output ("\n", 1);
    }

    /* Set up file labels appropriate for compatibility with the Larry Wall
     * implementation of patch if the user didn't specify.  This is irrelevant
     * according to the POSIX.2 specification.
     */
    label1 = NULL;
    label2 = NULL;
    if (!have_rev1_label)
    {
        if (empty_file == DIFF_ADDED)
        {
            TRACE(3,"diff_fileproc(); !have_rev1_label; empty_file == DIFF_ADDED make_file_label(is_rcs=%d)",is_rcs);

            label1 =
                make_file_label (DEVNULL, NULL, NULL, is_rcs);
        }
        else
        {
            TRACE(3,"diff_fileproc(); !have_rev1_label; empty_file != DIFF_ADDED make_file_label(is_rcs=%d)",is_rcs);

            label1 =
                make_file_label (is_rcs?fn_root(finfo->file):fn_root(finfo->fullname), use_rev1, vers ? vers->srcfile : NULL, is_rcs);
        }
    }

    if (!have_rev2_label)
    {
        if (empty_file == DIFF_REMOVED)
        {
            TRACE(3,"diff_fileproc(); !have_rev2_label; empty_file == DIFF_REMOVED make_file_label(is_rcs=%d)",is_rcs);

            label2 =
                make_file_label (DEVNULL, NULL, NULL, is_rcs);
        }
        else
        {
            TRACE(3,"diff_fileproc(); !have_rev2_label; empty_file != DIFF_REMOVED make_file_label(is_rcs=%d)",is_rcs);

            label2 =
                make_file_label (is_rcs?fn_root(finfo->file):fn_root(finfo->fullname), use_rev2, vers ? vers->srcfile : NULL, is_rcs);
        }
    }

    if (empty_file == DIFF_ADDED || empty_file == DIFF_REMOVED)
    {
        /* This is fullname, not file, possibly despite the POSIX.2
         * specification, because that's the way all the Larry Wall
         * implementations of patch (are there other implementations?) want
         * things and the POSIX.2 spec appears to leave room for this.
         */
        cvs_output ("\
===================================================================\n\
RCS file: ", 0);
        cvs_output (fn_root(finfo->fullname), 0);
        cvs_output ("\n", 1);

        cvs_output ("diff -N ", 0);
        cvs_output (fn_root(finfo->fullname), 0);
        cvs_output ("\n", 1);

        if (empty_file == DIFF_ADDED)
        {
            if (use_rev2 == NULL)
                status = diff_exec (DEVNULL, finfo->file, label1, label2, opts, RUN_TTY);
            else
            {
                int retcode;

                tmp = cvs_temp_name ();
                retcode = RCS_checkout (vers->srcfile, (char *) NULL,
                                        use_rev2, (char *) NULL,
                                        vers->options,
                                        tmp, (RCSCHECKOUTPROC) NULL,
                                        (void *) NULL, NULL);
                if (retcode != 0)
                {
                    diff_mark_errors (err);
                    return err;
                }

                status = diff_exec (DEVNULL, tmp, label1, label2, opts, RUN_TTY);
            }
        }
        else
        {
            int retcode;

            tmp = cvs_temp_name ();
            retcode = RCS_checkout (vers->srcfile, (char *) NULL,
                                    use_rev1, (char *) NULL,
                                    *options ? options : vers->options,
                                    tmp, (RCSCHECKOUTPROC) NULL,
                                    (void *) NULL, NULL);
            if (retcode != 0)
            {
                diff_mark_errors (err);
                return err;
            }

            status = diff_exec (tmp, DEVNULL, label1, label2, opts, RUN_TTY);
        }
    }
Example #2
0
/*
 * Classify the state of a file
 */
Ctype Classify_File (struct file_info *finfo, const char *tag, const char *date,
    const char *options, int force_tag_match, int aflag, Vers_TS **versp,
    int pipeout, int force_time_mismatch, int ignore_keywords)
    /* Keyword expansion options can be either NULL or "" to
       indicate none are specified here.  */
{
    Vers_TS *vers;
    Ctype ret;
	kflag kf,kf_ent;

    TRACE(3,"Classify_File (%s)",PATCH_NULL(finfo->file));
    /* get all kinds of good data about the file */
    vers = Version_TS (finfo, options, tag, date, force_tag_match, 0, 0);
    TRACE(3,"vn_rcs=%s",PATCH_NULL(vers->vn_rcs));	

	RCS_get_kflags(vers->options,false,kf);
	if(vers->entdata)
		RCS_get_kflags(vers->entdata->options,false,kf_ent);

	if(force_time_mismatch)
	{
		xfree(vers->ts_user);
		vers->ts_user=xstrdup("modified");
	}

    if (vers->vn_user == NULL)
    {
	/* No entry available, ts_rcs is invalid */
	if (vers->vn_rcs == NULL)
	{
	    /* there is no RCS file either */
	    if (vers->ts_user == NULL)
	    {
		/* there is no user file */
		/* FIXME: Why do we skip this message if vers->tag or
		   vers->date is set?  It causes "cvs update -r tag98 foo"
		   to silently do nothing, which is seriously confusing
		   behavior.  "cvs update foo" gives this message, which
		   is what I would expect.  */
		if (!force_tag_match || !(vers->tag || vers->date))
		{
		    if (!really_quiet)
				error (0, 0, "nothing known about %s", fn_root(finfo->fullname));
		}
		ret = T_UNKNOWN;
	    }
	    else
	    {
		/* there is a user file */
		/* FIXME: Why do we skip this message if vers->tag or
		   vers->date is set?  It causes "cvs update -r tag98 foo"
		   to silently do nothing, which is seriously confusing
		   behavior.  "cvs update foo" gives this message, which
		   is what I would expect.  */
		if (!force_tag_match || !(vers->tag || vers->date))
		    if (!really_quiet)
			error (0, 0, "use `%s add' to create an entry for %s",
			       program_name, fn_root(finfo->fullname));
		ret = T_UNKNOWN;
	    }
	}
	else if (RCS_isdead (vers->srcfile, vers->vn_rcs))
	{
	    /* there is an RCS file, but it's dead */
	    if (vers->ts_user == NULL)
		ret = T_UPTODATE;
	    else
	    {
		error (0, 0, "use `%s add' to create an entry for %s",
		       program_name, fn_root(finfo->fullname));
		ret = T_UNKNOWN;
	    }
	}
	else if (vers->ts_user && !strcmp(vers->ts_user,"0") && !strcmp(finfo->file,RCSREPOVERSION))
	{
		/* It's a directory entry, but there isn't one in the repository */
		ret = T_UNKNOWN;
	}
	else if (!pipeout && vers->ts_user && No_Difference(finfo, vers, (kf.flags&KFLAG_STATIC || kf_ent.flags&KFLAG_STATIC), ignore_keywords))
	{
	    /* the files were different so it is a conflict */
	    if (!really_quiet)
		error (0, 0, "move away %s; it is in the way",
		       fn_root(finfo->fullname));
	    ret = T_CONFLICT;
	}
	else
	{
	    /* no user file or no difference, just checkout */
	    ret = T_CHECKOUT;
	}
    }
    else if (strcmp (vers->vn_user, "0") == 0)
    {
	/* An entry for a new-born file; ts_rcs is dummy */

	if (vers->ts_user == NULL)
	{
	    /*
	     * There is no user file, but there should be one; remove the
	     * entry
	     */
		if(!really_quiet)
			error (0, 0, "warning: new-born %s has disappeared", fn_root(finfo->fullname));
		ret = T_REMOVE_ENTRY;
	}
	else if (vers->vn_rcs == NULL ||
		 RCS_isdead (vers->srcfile, vers->vn_rcs))
	    /* No RCS file or RCS file revision is dead  */
	    ret = T_ADDED;
	else
	{
	    if (vers->srcfile->flags & VALID)
	    {
		/* This file has been added on some branch other than
		   the one we are looking at.  In the branch we are
		   looking at, the file was already valid.  */
		if (!really_quiet)
		    error (0, 0,
			   "conflict: %s has been added, but already exists",
			   fn_root(finfo->fullname));
	    }
	    else
	    {
		/*
		 * There is an RCS file, so someone else must have checked
		 * one in behind our back; conflict
		 */
		if (!really_quiet)
		    error (0, 0,
			   "conflict: %s created independently by second party",
			   fn_root(finfo->fullname));
	    }
	    ret = T_CONFLICT;
	}
    }
    else if (vers->vn_user[0] == '-')
    {
	/* An entry for a removed file, ts_rcs is invalid */

	if (vers->ts_user == NULL)
	{
	    /* There is no user file (as it should be) */

	    if (vers->vn_rcs == NULL
		|| RCS_isdead (vers->srcfile, vers->vn_rcs))
	    {

		/*
		 * There is no RCS file; this is all-right, but it has been
		 * removed independently by a second party; remove the entry
		 */
		ret = T_REMOVE_ENTRY;
	    }
	    else if (strcmp (vers->vn_rcs, vers->vn_user + 1) == 0)
		/*
		 * The RCS file is the same version as the user file was, and
		 * that's OK; remove it
		 */
		ret = T_REMOVED;
	    else if (pipeout)
		/*
		 * The RCS file doesn't match the user's file, but it doesn't
		 * matter in this case
		 */
		ret = T_NEEDS_MERGE;
	    else
	    {

		/*
		 * The RCS file is a newer version than the removed user file
		 * and this is definitely not OK; make it a conflict.
		 */
		if (!really_quiet)
		    error (0, 0,
			   "conflict: removed %s was modified by second party",
			   fn_root(finfo->fullname));
		ret = T_CONFLICT;
	    }
	}
	else
	{
	    /* The user file shouldn't be there */
	    if (!really_quiet)
		error (0, 0, "%s should be removed and is still there",
		       fn_root(finfo->fullname));
	    ret = T_REMOVED;
	}
    }
    else
    {
	/* A normal entry, TS_Rcs is valid */
	if (vers->vn_rcs == NULL || RCS_isdead (vers->srcfile, vers->vn_rcs))
	{
	    /* There is no RCS file */

	    if (vers->ts_user == NULL)
	    {
		/* There is no user file, so just remove the entry */
		if (!really_quiet)
		    error (0, 0, "warning: %s is not (any longer) pertinent",
			   fn_root(finfo->fullname));
		ret = T_REMOVE_ENTRY;
	    }
	    else if (!strcmp (vers->ts_user, vers->ts_rcs))
	    {
		/*
		 * The user file is still unmodified, so just remove it from
		 * the entry list
		 */
		if (!really_quiet)
		    error (0, 0, "%s is no longer in the repository",
			   fn_root(finfo->fullname));
		ret = T_REMOVE_ENTRY;
	    }
		else if (No_Difference (finfo, vers, (kf.flags&KFLAG_STATIC || kf_ent.flags&KFLAG_STATIC), ignore_keywords))
	    {
		/* they are different -> conflict */
		if (!really_quiet)
		    error (0, 0,
	       "conflict: %s is modified but no longer in the repository",
			   fn_root(finfo->fullname));
		ret = T_CONFLICT;
	    }
	    else
	    {
		/* they weren't really different */
		if (!really_quiet)
		    error (0, 0,
			   "warning: %s is not (any longer) pertinent",
			   fn_root(finfo->fullname));
		ret = T_REMOVE_ENTRY;
	    }
	}
	else if (strcmp (vers->vn_rcs, vers->vn_user) == 0)
	{
	    /* The RCS file is the same version as the user file */

	    if (vers->ts_user == NULL)
	    {
		/*
		 * There is no user file, so note that it was lost and
		 * extract a new version
		 */
		/* Comparing the command_name against "update", in
		   addition to being an ugly way to operate, means
		   that this message does not get printed by the
		   server.  That might be considered just a straight
		   bug, although there is one subtlety: that case also
		   gets hit when a patch fails and the client fetches
		   a file.  I'm not sure there is currently any way
		   for the server to distinguish those two cases.  */
		if (strcmp (command_name, "update") == 0)
		    if (!really_quiet)
			error (0, 0, "warning: %s was lost", fn_root(finfo->fullname));
		ret = T_CHECKOUT;
	    }
		else if (!strcmp(vers->ts_user,"0") && !strcmp(finfo->file,RCSREPOVERSION))
		{
			/* This is a directory... The only important entry is the version*/
			ret = T_UPTODATE;
		}
	    else if (strcmp (vers->ts_user, vers->ts_rcs) == 0)
	    {
			/* Check for expansion option changes */
			if (options && !options_same(vers->entdata->options,vers->options))
				ret = T_CHECKOUT;
			else
			{
				if(aflag && !options_same(vers->entdata->options, vers->options))
					ret = T_CHECKOUT;
				else
					ret = T_UPTODATE;
				/* Changing the expansion option now requires a commit -f, which makes
				   sense (since you might have a sandbox specially checked out as -kb for example) */
				sticky_ck (finfo, aflag, vers);
			}
	    }
	    else if (vers->entdata->merge_from_tag_1[0]) 
		{
			ret = T_MODIFIED;
		}
		else if (No_Difference (finfo, vers, (kf.flags&KFLAG_STATIC || kf_ent.flags&KFLAG_STATIC), ignore_keywords))
	    {
			ret = T_MODIFIED;
			sticky_ck (finfo, aflag, vers);
	    }
	    else if (!options_same(vers->entdata->options,vers->options))
	    {
			/* file has not changed; check out if -k changed */
			ret = T_CHECKOUT;
	    }
	    else
	    {

		/*
		 * else -> note that No_Difference will Register the
		 * file already for us, using the new tag/date. This
		 * is the desired behaviour
		 */
		ret = T_UPTODATE;
	    }
	}
	else
	{
	    /* The RCS file is a newer version than the user file */

	    if (vers->ts_user == NULL)
	    {
		/* There is no user file, so just get it */

		/* See comment at other "update" compare, for more
		   thoughts on this comparison.  */
		if (strcmp (command_name, "update") == 0)
		    if (!really_quiet)
			error (0, 0, "warning: %s was lost", fn_root(finfo->fullname));
		ret = T_CHECKOUT;
	    }
	    else if (!strcmp (vers->ts_user, vers->ts_rcs))
	    {

		/*
		 * The user file is still unmodified, so just get it as well
		 */
		if (!options_same(vers->entdata->options,vers->options))
		    ret = T_CHECKOUT;
		else
		    ret = T_PATCH;
	    }
		else if (No_Difference (finfo, vers, (kf.flags&KFLAG_STATIC || kf_ent.flags&KFLAG_STATIC), ignore_keywords))
			/* really modified, needs to merge */
			ret = T_NEEDS_MERGE;
	    else if(!options_same(vers->entdata->options,vers->options))
			/* not really modified, check it out */
			ret = T_CHECKOUT;
	    else
			ret = T_PATCH;
	}
    }

    /* free up the vers struct, or just return it */
    if (versp != (Vers_TS **) NULL)
	*versp = vers;
    else
	freevers_ts (&vers);

    /* return the status of the file */
    return (ret);
}
Example #3
0
/* ARGSUSED */
static int
ls_fileproc (void *callerdat, struct file_info *finfo)
{
    Vers_TS *vers;
    char *regex_err;
    Node *p, *n;
    bool isdead;
    const char *filename;

    if (regexp_match)
    {
#ifdef FILENAMES_CASE_INSENSITIVE
	  re_set_syntax (REG_ICASE|RE_SYNTAX_EGREP);
#else
	  re_set_syntax (RE_SYNTAX_EGREP);
#endif
	  if ((regex_err = re_comp (regexp_match)) != NULL)
	  {
	      error (1, 0, "bad regular expression passed to 'ls': %s",
                     regex_err);
	  }
	  if (re_exec (finfo->file) == 0)
	      return 0;				/* no match */
    }

    vers = Version_TS (finfo, NULL, show_tag, show_date, 1, 0);
    /* Skip dead revisions unless specifically requested to do otherwise.
     * We also bother to check for long_format so we can print the state.
     */
    if (vers->vn_rcs && (!show_dead_revs || long_format))
	isdead = RCS_isdead (finfo->rcs, vers->vn_rcs);
    else
	isdead = false;
    if (!vers->vn_rcs || (!show_dead_revs && isdead))
    {
        freevers_ts (&vers);
	return 0;
    }

    p = findnode (callerdat, finfo->update_dir);
    if (!p)
    {
	/* This only occurs when a complete path to a file is specified on the
	 * command line.  Put the file in the root list.
	 */
	filename = finfo->fullname;

	/* Add update_dir node.  */
	p = findnode (callerdat, ".");
	if (!p)
	{
	    p = getnode ();
	    p->key = xstrdup (".");
	    p->data = getlist ();
	    p->delproc = ls_delproc;
	    addnode (callerdat, p);
	}
    }
    else
	filename = finfo->file;

    n = getnode();
    if (entries_format)
    {
	char *outdate = entries_time (RCS_getrevtime (finfo->rcs, vers->vn_rcs,
                                                      0, 0));
	n->data = Xasprintf ("/%s/%s/%s/%s/%s%s\n",
                             filename, vers->vn_rcs,
                             outdate, vers->options,
                             show_tag ? "T" : "", show_tag ? show_tag : "");
	free (outdate);
    }
    else if (long_format)
    {
	struct long_format_data *out =
		xmalloc (sizeof (struct long_format_data));
	out->header = Xasprintf ("%-5.5s",
                                 vers->options[0] != '\0' ? vers->options
                                                          : "----");
	/* FIXME: Do we want to mimc the real `ls' command's date format?  */
	out->time = gmformat_time_t (RCS_getrevtime (finfo->rcs, vers->vn_rcs,
                                                     0, 0));
	out->footer = Xasprintf (" %-9.9s%s %s%s", vers->vn_rcs,
                                 strlen (vers->vn_rcs) > 9 ? "+" : " ",
                                 show_dead_revs ? (isdead ? "dead " : "     ")
                                                : "",
                                 filename);
	n->data = out;
	n->delproc = long_format_data_delproc;
    }
    else
	n->data = Xasprintf ("%s\n", filename);

    addnode (p->data, n);

    freevers_ts (&vers);
    return 0;
}