checkout.c

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/************************************************************************
 * Copyright (C) 2007-2009 Philipp Marek.
 *
 * This program is free software;  you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3 as
 * published by the Free Software Foundation.
 ************************************************************************/

#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <time.h>
#include <ctype.h>
#include <sys/select.h>

#include "url.h"
#include "waa.h"
#include "helper.h"
#include "commit.h"
#include "export.h"


int co__work(struct estat *root, int argc, char *argv[])
{
    int status;
    int l;
    char *path;
    time_t delay_start;


    path=NULL;

    /* The allocation uses calloc(), so current_rev is initialized to 0. */
    STOPIF( url__allocate(argc+1), NULL);
    /* Append URLs. */
    for(l=0; l<argc; l++)
    {
        DEBUGP("parsing %s into %d", argv[l], urllist_count);
        /* Should we fail if the URL is given twice? */
        /* Don't print errors for now ... so we see whether it's an URL or not, 
         * without alerting the user. */
        make_STOP_silent++;
        status=url__insert_or_replace(argv[l], NULL, NULL);
        make_STOP_silent--;
        if (status == EINVAL)
        {
            /* Invalid URL ... possibly path. */
            STOPIF_CODE_ERR(path, EINVAL,
                    "!Two non-URLs were given:\n"
                    "  %s\n"
                    "and\n"
                    "  %s\n"
                    "but this action accepts only a single path.",
                    path, argv[l]);

            path=argv[l];
        }
    }

    STOPIF_CODE_ERR( urllist_count==0, EINVAL,
            "!Need at least a single URL to checkout from.");

    if (path)
        STOPIF_CODE_ERR( chdir(path)==-1, errno,
                "!Cannot use the directory \"%s\";\nmaybe you meant to give an URL?", path);


    root->arg=path ? path : ".";

    STOPIF( waa__save_cwd( &path, NULL, 0), NULL);
    STOPIF( waa__create_working_copy(path), NULL);
    free(path);

    /* We don't use the loop above, because the user might give the same URL 
     * twice - and we'd overwrite the fetched files. */
    for(l=0; l<urllist_count; l++)
    {
        STOPIF( exp__do(root, urllist[l]), NULL);

        urllist[l]->current_rev = target_revision;
        STOPIF( ci__set_revision(root, target_revision), NULL);
        printf("Checked out %s at revision\t%ld.\n", 
                urllist[l]->url, urllist[l]->current_rev);
    }

    /* Store where we are ... */
    delay_start=time(NULL);
    STOPIF( url__output_list(), NULL);
    STOPIF( waa__output_tree(root), NULL);
    STOPIF( hlp__delay(delay_start, DELAY_CHECKOUT), NULL);

ex:
    return status;
}

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