Linux Cubed Series 4: GNU Archives/Linux Cubed Series 4 - GNU Archives.iso/gnu/cvs-1.8/cvs-1/cvs-1.8.1/src/checkin.c

C/C++ Source or Header | 1996-05-06 | 4.9 KB | 189 lines

/*
 * 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.
 *
 * Check In
 *
 * Does a very careful checkin of the file "user", and tries not to spoil its
 * modification time (to avoid needless recompilations). When RCS ID keywords
 * get expanded on checkout, however, the modification time is updated and
 * there is no good way to get around this.
 *
 * Returns non-zero on error.
 */

#include "cvs.h"
#include "fileattr.h"
#include "edit.h"

int
Checkin (type, file, update_dir, repository,
     rcs, rev, tag, options, message, entries)
    int type;
    char *file;
    char *update_dir;
    char *repository;
    char *rcs;
    char *rev;
    char *tag;
    char *options;
    char *message;
    List *entries;
{
    char fname[PATH_MAX];
    Vers_TS *vers;
    int set_time;
    char *fullname;

    char *tocvsPath = NULL;

    fullname = xmalloc (strlen (update_dir) + strlen (file) + 10);
    if (update_dir[0] == '\0')
    strcpy (fullname, file);
    else
    sprintf (fullname, "%s/%s", update_dir, file);

    (void) printf ("Checking in %s;\n", fullname);
    (void) sprintf (fname, "%s/%s%s", CVSADM, CVSPREFIX, file);

    /*
     * Move the user file to a backup file, so as to preserve its
     * modification times, then place a copy back in the original file name
     * for the checkin and checkout.
     */

    tocvsPath = wrap_tocvs_process_file (fullname);

    if (!noexec)
    {
        if (tocvsPath)
    {
            copy_file (tocvsPath, fname);
        if (unlink_file_dir (file) < 0)
        if (! existence_error (errno))
            error (1, errno, "cannot remove %s", file);
        copy_file (tocvsPath, file);
    }
    else
    {
        copy_file (file, fname);
    }
    }

    switch (RCS_checkin (rcs, NULL, message, rev, 0, 0))
    {
    case 0:            /* everything normal */

        /*
         * The checkin succeeded, so now check the new file back out and
         * see if it matches exactly with the one we checked in. If it
         * does, just move the original user file back, thus preserving
         * the modes; otherwise, we have no recourse but to leave the
         * newly checkout file as the user file and remove the old
         * original user file.
         */

        if (strcmp (options, "-V4") == 0) /* upgrade to V5 now */
        options[0] = '\0';

        /* FIXME: should be checking for errors.  */
        (void) RCS_checkout (rcs, "", rev, options, RUN_TTY, 0, 0);

        xchmod (file, 1);
        if (xcmp (file, fname) == 0)
        {
        rename_file (fname, file);
        /* the time was correct, so leave it alone */
        set_time = 0;
        }
        else
        {
        if (unlink_file (fname) < 0)
            error (0, errno, "cannot remove %s", fname);
        /* sync up with the time from the RCS file */
        set_time = 1;
        }

        wrap_fromcvs_process_file (file);

        /*
         * If we want read-only files, muck the permissions here, before
         * getting the file time-stamp.
         */
        if (cvswrite == FALSE || fileattr_get (file, "_watched"))
        xchmod (file, 0);

        /* re-register with the new data */
        vers = Version_TS (repository, (char *) NULL, tag, (char *) NULL,
                   file, 1, set_time, entries, (RCSNode *) NULL);
        if (strcmp (vers->options, "-V4") == 0)
        vers->options[0] = '\0';
        Register (entries, file, vers->vn_rcs, vers->ts_user,
              vers->options, vers->tag, vers->date, (char *) 0);
        history_write (type, (char *) 0, vers->vn_rcs, file, repository);
        freevers_ts (&vers);

        if (tocvsPath)
        if (unlink_file_dir (tocvsPath) < 0)
            error (0, errno, "cannot remove %s", tocvsPath);

        break;

    case -1:            /* fork failed */
        if (tocvsPath)
        if (unlink_file_dir (tocvsPath) < 0)
            error (0, errno, "cannot remove %s", tocvsPath);

        if (!noexec)
        error (1, errno, "could not check in %s -- fork failed",
               fullname);
        return (1);

    default:            /* ci failed */

        /*
         * The checkin failed, for some unknown reason, so we restore the
         * original user file, print an error, and return an error
         */
        if (tocvsPath)
        if (unlink_file_dir (tocvsPath) < 0)
            error (0, errno, "cannot remove %s", tocvsPath);

        if (!noexec)
        {
        rename_file (fname, file);
        error (0, 0, "could not check in %s", fullname);
        }
        return (1);
    }

    /*
     * When checking in a specific revision, we may have locked the wrong
     * branch, so to be sure, we do an extra unlock here before
     * returning.
     */
    if (rev)
    {
    (void) RCS_unlock (rcs, NULL, 1);
    }

#ifdef SERVER_SUPPORT
    if (server_active)
    {
    if (set_time)
        /* Need to update the checked out file on the client side.  */
        server_updated (file, update_dir, repository, SERVER_UPDATED,
                NULL, NULL);
    else
        server_checked_in (file, update_dir, repository);
    }
    else
#endif
    mark_up_to_date (file);

    return (0);
}