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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 1.3 kit.
- *
- * Create Version
- *
- * "checkout" creates a "version" of an RCS repository. This version is owned
- * totally by the user and is actually an independent copy, to be dealt with
- * as seen fit. Once "checkout" has been called in a given directory, it
- * never needs to be called again. The user can keep up-to-date by calling
- * "update" when he feels like it; this will supply him with a merge of his
- * own modifications and the changes made in the RCS original. See "update"
- * for details.
- *
- * "checkout" can be given a list of directories or files to be updated and in
- * the case of a directory, will recursivley create any sub-directories that
- * exist in the repository.
- *
- * When the user is satisfied with his own modifications, the present version
- * can be committed by "commit"; this keeps the present version in tact,
- * usually.
- *
- * The call is cvs checkout [options] <module-name>...
- *
- * "checkout" creates a directory ./CVS, in which it keeps its administration,
- * in two files, Repository and Entries. The first contains the name of the
- * repository. The second contains one line for each registered file,
- * consisting of the version number it derives from, its time stamp at
- * derivation time and its name. Both files are normal files and can be
- * edited by the user, if necessary (when the repository is moved, e.g.)
- */
-
- #include "cvs.h"
-
- #ifndef lint
- static char rcsid[] = "@(#)checkout.c 1.67 92/04/10";
- #endif
-
- #if __STDC__
- static char *findslash (char *start, char *p);
- static int build_dirs_and_chdir (char *dir, char *prepath, char *realdir,
- int sticky);
- static int checkout_proc (int *pargc, char *argv[], char *where,
- char *mwhere, char *mfile, int shorten,
- int local_specified, char *omodule,
- char *msg);
- #else
- static int checkout_proc ();
- static char *findslash ();
- static int build_dirs_and_chdir ();
- #endif /* __STDC__ */
-
- static char *checkout_usage[] =
- {
- "Usage:\n %s %s [-ANPQcflnpqs] [-r rev | -D date] [-d dir] [-k kopt] modules...\n",
- "\t-A\tReset any sticky tags/date/kopts.\n",
- "\t-N\tDon't shorten module paths if -d specified.\n",
- "\t-P\tPrune empty directories.\n",
- "\t-Q\tReally quiet.\n",
- "\t-c\t\"cat\" the module database.\n",
- "\t-f\tForce a head revision match if tag/date not found.\n",
- "\t-l\tLocal directory only, not recursive\n",
- "\t-n\tDo not run module program (if any).\n",
- "\t-p\tCheck out files to standard output.\n",
- "\t-q\tSomewhat quiet.\n",
- "\t-s\tLike -c, but include module status.\n",
- "\t-r rev\tCheck out revision or tag. (implies -P)\n",
- "\t-D date\tCheck out revisions as of date. (implies -P)\n",
- "\t-d dir\tCheck out into dir instead of module name.\n",
- "\t-k kopt\tUse RCS kopt -k option on checkout.\n",
- "\t-j rev\tMerge in changes made between current revision and rev.\n",
- NULL
- };
-
- static char *export_usage[] =
- {
- "Usage: %s %s [-NPQflnq] [-r rev | -D date] [-d dir] module...\n",
- "\t-N\tDon't shorten module paths if -d specified.\n",
- "\t-Q\tReally quiet.\n",
- "\t-f\tForce a head revision match if tag/date not found.\n",
- "\t-l\tLocal directory only, not recursive\n",
- "\t-n\tDo not run module program (if any).\n",
- "\t-q\tSomewhat quiet.\n",
- "\t-r rev\tCheck out revision or tag. (implies -P)\n",
- "\t-D date\tCheck out revisions as of date. (implies -P)\n",
- "\t-d dir\tCheck out into dir instead of module name.\n",
- NULL
- };
-
- static int checkout_prune_dirs;
- static int force_tag_match = 1;
- static int pipeout;
- static int aflag;
- static char *options = NULL;
- static char *tag = NULL;
- static char *date = NULL;
- static char *join_rev1 = NULL;
- static char *join_rev2 = NULL;
- static char *preload_update_dir = NULL;
-
- int
- checkout (argc, argv)
- int argc;
- char *argv[];
- {
- register int i;
- int c;
- DBM *db;
- int cat = 0, err = 0, status = 0;
- int run_module_prog = 1;
- int local = 0;
- int shorten = -1;
- char *where = NULL;
- char *valid_options, **valid_usage;
-
- /*
- * A smaller subset of options are allowed for the export command, which
- * is essentially like checkout, except that it hard-codes certain
- * options to be on (like -kv) and takes care to remove the CVS directory
- * when it has done its duty
- */
- if (strcmp (command_name, "export") == 0)
- {
- valid_options = "Nnd:flRQqr:D:";
- valid_usage = export_usage;
- }
- else
- {
- valid_options = "ANnk:d:flRpQqcsr:D:j:P";
- valid_usage = checkout_usage;
- }
-
- if (argc == -1)
- usage (valid_usage);
-
- ign_setup ();
-
- optind = 1;
- while ((c = gnu_getopt (argc, argv, valid_options)) != -1)
- {
- switch (c)
- {
- case 'A':
- aflag = 1;
- break;
- case 'N':
- shorten = 0;
- break;
- case 'k':
- if (options)
- free (options);
- options = RCS_check_kflag (optarg);
- break;
- case 'n':
- run_module_prog = 0;
- break;
- case 'Q':
- really_quiet = 1;
- /* FALL THROUGH */
- case 'q':
- quiet = 1;
- break;
- case 'l':
- local = 1;
- break;
- case 'R':
- local = 0;
- break;
- case 'P':
- checkout_prune_dirs = 1;
- break;
- case 'p':
- pipeout = 1;
- run_module_prog = 0; /* don't run module prog when piping */
- noexec = 1; /* so no locks will be created */
- break;
- case 'c':
- cat = 1;
- break;
- case 'd':
- where = optarg;
- if (shorten == -1)
- shorten = 1;
- break;
- case 's':
- status = 1;
- break;
- case 'f':
- force_tag_match = 0;
- break;
- case 'r':
- tag = optarg;
- checkout_prune_dirs = 1;
- break;
- case 'D':
- date = Make_Date (optarg);
- checkout_prune_dirs = 1;
- break;
- case 'j':
- if (join_rev2)
- error (1, 0, "only two -j options can be specified");
- if (join_rev1)
- join_rev2 = optarg;
- else
- join_rev1 = optarg;
- break;
- case '?':
- default:
- usage (valid_usage);
- break;
- }
- }
- argc -= optind;
- argv += optind;
-
- if (shorten == -1)
- shorten = 0;
-
- if ((!(cat + status) && argc == 0) || ((cat + status) && argc != 0)
- || (tag && date))
- usage (valid_usage);
-
- if (where && pipeout)
- error (1, 0, "-d and -p are mutually exclusive");
-
- if (strcmp (command_name, "export") == 0)
- {
- if (!tag && !date)
- {
- error (0, 0, "must specify a tag or date");
- usage (valid_usage);
- }
- if (tag && isdigit (tag[0]))
- error (1, 0, "tag `%s' must be a symbolic tag", tag);
- options = RCS_check_kflag ("v");/* -kv must be on */
- }
-
- if (cat || status)
- {
- cat_module (status);
- return (0);
- }
- db = open_module ();
-
- /*
- * if we have more than one argument and where was specified, we make the
- * where, cd into it, and try to shorten names as much as possible.
- * Otherwise, we pass the where as a single argument to do_module.
- */
- if (argc > 1 && where != NULL)
- {
- char repository[PATH_MAX];
-
- (void) mkdir (where, 0777);
- if (chdir (where) < 0)
- error (1, errno, "cannot chdir to %s", where);
- preload_update_dir = xstrdup (where);
- where = (char *) NULL;
- if (!isfile (CVSADM) && !isfile (OCVSADM))
- {
- (void) sprintf (repository, "%s/%s", CVSroot, CVSNULLREPOS);
- if (!isfile (repository))
- (void) mkdir (repository, 0777);
- Create_Admin (".", repository, (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);
- }
- }
- }
-
- /*
- * if where was specified (-d) and we have not taken care of it already
- * with the multiple arg stuff, and it was not a simple directory name
- * but rather a path, we strip off everything but the last component and
- * attempt to cd to the indicated place. where then becomes simply the
- * last component
- */
- if (where != NULL && index (where, '/') != NULL)
- {
- char *slash;
-
- slash = rindex (where, '/');
- *slash = '\0';
-
- if (chdir (where) < 0)
- error (1, errno, "cannot chdir to %s", where);
-
- preload_update_dir = xstrdup (where);
-
- where = slash + 1;
- if (*where == '\0')
- where = NULL;
- }
-
- for (i = 0; i < argc; i++)
- err += do_module (db, argv[i], CHECKOUT, "Updating", checkout_proc,
- where, shorten, local, run_module_prog,
- (char *) NULL);
- close_module (db);
- return (err);
- }
-
- /*
- * process_module calls us back here so we do the actual checkout stuff
- */
- /* ARGSUSED */
- static int
- checkout_proc (pargc, argv, where, mwhere, mfile, shorten,
- local_specified, omodule, msg)
- int *pargc;
- char *argv[];
- char *where;
- char *mwhere;
- char *mfile;
- int shorten;
- int local_specified;
- char *omodule;
- char *msg;
- {
- int err = 0;
- int which;
- char *cp;
- char *cp2;
- char repository[PATH_MAX];
- char xwhere[PATH_MAX];
- char *oldupdate = NULL;
- char *prepath;
- char *realdirs;
-
- /*
- * OK, so we're doing the checkout! Our args are as follows:
- * argc,argv contain either dir or dir followed by a list of files
- * where contains where to put it (if supplied by checkout)
- * mwhere contains the module name or -d from module file
- * mfile says do only that part of the module
- * shorten = TRUE says shorten as much as possible
- * omodule is the original arg to do_module()
- */
-
- /* set up the repository (maybe) for the bottom directory */
- (void) sprintf (repository, "%s/%s", CVSroot, argv[0]);
-
-
- /* save the original value of preload_update_dir */
- if (preload_update_dir != NULL)
- oldupdate = xstrdup (preload_update_dir);
-
- /* fix up argv[] for the case of partial modules */
- if (mfile != NULL)
- {
- char file[PATH_MAX];
-
- /* if mfile is really a path, straighten it out first */
- if ((cp = rindex (mfile, '/')) != NULL)
- {
- *cp = 0;
- (void) strcat (repository, "/");
- (void) strcat (repository, mfile);
-
- /*
- * Now we need to fill in the where correctly. if !shorten, tack
- * the rest of the path onto where if where is filled in
- * otherwise tack the rest of the path onto mwhere and make that
- * the where
- *
- * If shorten is enabled, we might use mwhere to set where if
- * nobody set it yet, so we'll need to setup mwhere as the last
- * component of the path we are tacking onto repository
- */
- if (!shorten)
- {
- if (where != NULL)
- (void) sprintf (xwhere, "%s/%s", where, mfile);
- else
- (void) sprintf (xwhere, "%s/%s", mwhere, mfile);
- where = xwhere;
- }
- else
- {
- char *slash;
-
- if ((slash = rindex (mfile, '/')) != NULL)
- mwhere = slash + 1;
- else
- mwhere = mfile;
- }
- mfile = cp + 1;
- }
-
- (void) sprintf (file, "%s/%s", repository, mfile);
- if (isdir (file))
- {
-
- /*
- * The portion of a module was a directory, so kludge up where to
- * be the subdir, and fix up repository
- */
- (void) strcpy (repository, file);
-
- /*
- * At this point, if shorten is not enabled, we make where either
- * where with mfile concatenated, or if where hadn't been set we
- * set it to mwhere with mfile concatenated.
- *
- * If shorten is enabled and where hasn't been set yet, then where
- * becomes mfile
- */
- if (!shorten)
- {
- if (where != NULL)
- (void) sprintf (xwhere, "%s/%s", where, mfile);
- else
- (void) sprintf (xwhere, "%s/%s", mwhere, mfile);
- where = xwhere;
- }
- else if (where == NULL)
- where = mfile;
- }
- else
- {
- int i;
-
- /*
- * The portion of a module was a file, so kludge up argv to be
- * correct
- */
- for (i = 1; i < *pargc; i++)/* free the old ones */
- free (argv[i]);
- argv[1] = xstrdup (mfile); /* set up the new one */
- *pargc = 2;
-
- /* where gets mwhere if where isn't set */
- if (where == NULL)
- where = mwhere;
- }
- }
-
- /*
- * if shorten is enabled and where isn't specified yet, we pluck the last
- * directory component of argv[0] and make it the where
- */
- if (shorten && where == NULL)
- {
- if ((cp = rindex (argv[0], '/')) != NULL)
- {
- (void) strcpy (xwhere, cp + 1);
- where = xwhere;
- }
- }
-
- /* if where is still NULL, use mwhere if set or the argv[0] dir */
- if (where == NULL)
- {
- if (mwhere)
- where = mwhere;
- else
- {
- (void) strcpy (xwhere, argv[0]);
- where = xwhere;
- }
- }
-
- if (preload_update_dir != NULL)
- {
- char tmp[PATH_MAX];
-
- (void) sprintf (tmp, "%s/%s", preload_update_dir, where);
- free (preload_update_dir);
- preload_update_dir = xstrdup (tmp);
- }
- else
- preload_update_dir = xstrdup (where);
-
- /*
- * At this point, where is the directory we want to build, repository is
- * the repository for the lowest level of the path.
- */
-
- /*
- * If we are sending everything to stdout, we can skip a whole bunch of
- * work from here
- */
- if (!pipeout)
- {
-
- /*
- * We need to tell build_dirs not only the path we want it to build,
- * but also the repositories we want it to populate the path with. To
- * accomplish this, we pass build_dirs a ``real path'' with valid
- * repositories and a string to pre-pend based on how many path
- * elements exist in where. Big Black Magic
- */
- prepath = xstrdup (repository);
- cp = rindex (where, '/');
- cp2 = rindex (prepath, '/');
- while (cp != NULL)
- {
- cp = findslash (where, cp - 1);
- cp2 = findslash (prepath, cp2 - 1);
- }
- *cp2 = '\0';
- realdirs = cp2 + 1;
-
- /*
- * build dirs on the path if necessary and leave us in the bottom
- * directory (where if where was specified) doesn't contain a CVS
- * subdir yet, but all the others contain CVS and Entries.Static
- * files
- */
- if (build_dirs_and_chdir (where, prepath, realdirs, *pargc <= 1) != 0)
- {
- error (0, 0, "ignoring module %s", omodule);
- free (prepath);
- free (preload_update_dir);
- preload_update_dir = oldupdate;
- return (1);
- }
-
- /* clean up */
- free (prepath);
-
- /* set up the repository (or make sure the old one matches) */
- if (!isfile (CVSADM) && !isfile (OCVSADM))
- {
- FILE *fp;
-
- if (!noexec && *pargc > 1)
- {
- Create_Admin (".", repository, (char *) NULL, (char *) NULL);
- fp = open_file (CVSADM_ENTSTAT, "w+");
- if (fclose(fp) == EOF)
- error(1, errno, "cannot close %s", CVSADM_ENTSTAT);
- }
- else
- Create_Admin (".", repository, tag, date);
- }
- else
- {
- char *repos;
-
- /* get the contents of the previously existing repository */
- repos = Name_Repository ((char *) NULL, preload_update_dir);
- if (strcmp (repository, repos) != 0)
- {
- error (0, 0, "existing repository %s does not match %s",
- repos, repository);
- error (0, 0, "ignoring module %s", omodule);
- free (repos);
- free (preload_update_dir);
- preload_update_dir = oldupdate;
- return (1);
- }
- free (repos);
- }
- }
-
- /*
- * If we are going to be updating to stdout, we need to cd to the
- * repository directory so the recursion processor can use the current
- * directory as the place to find repository information
- */
- if (pipeout)
- {
- if (chdir (repository) < 0)
- {
- error (0, errno, "cannot chdir to %s", repository);
- free (preload_update_dir);
- preload_update_dir = oldupdate;
- return (1);
- }
- which = W_REPOS;
- }
- else
- which = W_LOCAL | W_REPOS;
-
- if (tag != NULL || date != NULL)
- which |= W_ATTIC;
-
- /*
- * if we are going to be recursive (building dirs), go ahead and call the
- * update recursion processor. We will be recursive unless either local
- * only was specified, or we were passed arguments
- */
- if (!(local_specified || *pargc > 1))
- {
- if (strcmp (command_name, "export") != 0 && !pipeout)
- history_write ('O', preload_update_dir, tag ? tag : date, where,
- repository);
- err += do_update (0, (char **) NULL, options, tag, date,
- force_tag_match, 0 /* !local */ ,
- 1 /* update -d */ , aflag, checkout_prune_dirs,
- pipeout, which, join_rev1, join_rev2,
- preload_update_dir);
- free (preload_update_dir);
- preload_update_dir = oldupdate;
- return (err);
- }
-
- if (!pipeout)
- {
- int i;
- List *entries;
-
- /* we are only doing files, so register them */
- entries = ParseEntries (0);
- for (i = 1; i < *pargc; i++)
- {
- char line[MAXLINELEN];
- char *user;
- Vers_TS *vers;
-
- user = argv[i];
- vers = Version_TS (repository, options, tag, date, user,
- force_tag_match, 0, entries, (List *) NULL);
- if (vers->ts_user == NULL)
- {
- (void) sprintf (line, "Initial %s", user);
- Register (entries, user, vers->vn_rcs, line, vers->options,
- vers->tag, vers->date);
- }
- freevers_ts (&vers);
- }
- dellist (&entries);
- }
-
- /* Don't log "export", just regular "checkouts" */
- if (strcmp (command_name, "export") != 0 && !pipeout)
- history_write ('O', preload_update_dir, (tag ? tag : date), where,
- repository);
-
- /* go ahead and call update now that everything is set */
- err += do_update (*pargc - 1, argv + 1, options, tag, date,
- force_tag_match, local_specified, 1 /* update -d */,
- aflag, checkout_prune_dirs, pipeout, which, join_rev1,
- join_rev2, preload_update_dir);
- free (preload_update_dir);
- preload_update_dir = oldupdate;
- return (err);
- }
-
- static char *
- findslash (start, p)
- char *start;
- char *p;
- {
- while ((int) p >= (int) start && *p != '/')
- p--;
- if ((int) p < (int) start)
- return (NULL);
- else
- return (p);
- }
-
- /*
- * build all the dirs along the path to dir with CVS subdirs with appropriate
- * repositories and Entries.Static files
- */
- static int
- build_dirs_and_chdir (dir, prepath, realdir, sticky)
- char *dir;
- char *prepath;
- char *realdir;
- int sticky;
- {
- FILE *fp;
- char repository[PATH_MAX];
- char path[PATH_MAX];
- char path2[PATH_MAX];
- char *slash;
- char *slash2;
- char *cp;
- char *cp2;
-
- (void) strcpy (path, dir);
- (void) strcpy (path2, realdir);
- for (cp = path, cp2 = path2;
- (slash = index (cp, '/')) != NULL && (slash2 = index (cp2, '/')) != NULL;
- cp = slash + 1, cp2 = slash2 + 1)
- {
- *slash = '\0';
- *slash2 = '\0';
- (void) mkdir (cp, 0777);
- if (chdir (cp) < 0)
- {
- error (0, errno, "cannot chdir to %s", cp);
- return (1);
- }
- if (!isfile (CVSADM) && !isfile (OCVSADM) &&
- strcmp (command_name, "export") != 0)
- {
- (void) sprintf (repository, "%s/%s", prepath, path2);
- Create_Admin (".", repository, sticky ? (char *) NULL : tag,
- sticky ? (char *) NULL : date);
- if (!noexec)
- {
- fp = open_file (CVSADM_ENTSTAT, "w+");
- if (fclose(fp) == EOF)
- error(1, errno, "cannot close %s", CVSADM_ENTSTAT);
- }
- }
- *slash = '/';
- *slash2 = '/';
- }
- (void) mkdir (cp, 0777);
- if (chdir (cp) < 0)
- {
- error (0, errno, "cannot chdir to %s", cp);
- return (1);
- }
- return (0);
- }
-