9cda9ad176
* BUG: The previous fix was incorrect. We can now really create an executable when the project directory and the target directory are not on the same device. git-svn-id: svn://localhost/gambas/trunk@5604 867c0c6c-44f3-4631-809d-bfa615b0a4ec
429 lines
No EOL
8.5 KiB
C
429 lines
No EOL
8.5 KiB
C
/***************************************************************************
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gbc_archive.c
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(c) 2000-2012 Benoît Minisini <gambas@users.sourceforge.net>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA.
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***************************************************************************/
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#define __GBC_ARCHIVE_C
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#include "config.h"
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include "gb_common.h"
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#include "gb_error.h"
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#include "gb_str.h"
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#include "gb_file.h"
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#include "gb_magic.h"
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#include "gb_common_swap.h"
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#include "gbc_chown.h"
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#include "gbc_archive.h"
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/*#define DEBUG*/
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#define TEMP_EXEC ".temp.gambas"
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char *ARCH_project;
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char *ARCH_project_name;
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char *ARCH_output = NULL;
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bool ARCH_verbose = FALSE;
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bool ARCH_swap = FALSE;
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static int arch_dir_pos;
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static TABLE *arch_table;
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static FILE *arch_file = NULL;
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#define ARCH_BUFFER_SIZE 4096
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static char *arch_buffer;
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static int pos_start;
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static void write_int(uint val)
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{
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if (ARCH_swap)
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SWAP_int((int *)&val);
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if (fwrite(&val, sizeof(uint), 1, arch_file) < 1)
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THROW("Write error");
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}
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static void write_short(ushort val)
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{
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if (ARCH_swap)
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SWAP_short((short *)&val);
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if (fwrite(&val, sizeof(ushort), 1, arch_file) < 1)
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THROW("Write error");
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}
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static long get_pos(void)
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{
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long pos = ftell(arch_file);
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if (pos < 0)
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THROW("Unable to get file position");
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return (int)pos; // No archive file greater then 2 Go!
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}
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static void write_int_at(int pos, uint val)
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{
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int old_pos = get_pos();
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fseek(arch_file, pos, SEEK_SET);
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write_int(val);
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fseek(arch_file, old_pos, SEEK_SET);
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}
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static void write_string(const char *str, int len)
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{
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if (fwrite(str, sizeof(char), len, arch_file) < len)
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THROW("Write error");
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}
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static void make_executable(void)
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{
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const char *err;
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struct stat info;
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FILE_chdir(FILE_get_dir(ARCH_output));
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// If we cannot make the archive executable, just print a warning. gbs creates an executable cache
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// inside /tmp, and /tmp may be mounted with the "noexec" flag.
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if (stat(TEMP_EXEC, &info) || chmod(TEMP_EXEC, info.st_mode | S_IXUSR | S_IXGRP | S_IXOTH))
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fprintf(stderr, "gba: warning: cannot change executable permissions\n");
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FILE_set_owner(TEMP_EXEC, FILE_cat(FILE_get_dir(ARCH_project), ".project", NULL));
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if (FILE_exist(ARCH_output) && unlink(ARCH_output))
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{
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err = "Cannot remove previous executable";
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goto __ERROR;
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}
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if (rename(TEMP_EXEC, ARCH_output))
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{
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err = "Cannot create executable";
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goto __ERROR;
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}
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return;
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__ERROR:
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THROW("Cannot make executable: &1: &2", err, strerror(errno));
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}
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void ARCH_define_output(const char *path)
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{
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STR_free(ARCH_output);
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if (path && *path != '/')
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path = FILE_cat(FILE_get_current_dir(), path, NULL);
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else if (!path)
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path = "";
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ARCH_output = STR_copy(path);
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}
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void ARCH_define_project(const char *project)
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{
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char *name;
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char *dir;
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const char *path;
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if (project == NULL)
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project = FILE_get_current_dir();
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FILE_chdir(project);
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dir = STR_copy(FILE_get_current_dir());
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arch_dir_pos = strlen(dir) + 1;
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path = FILE_cat(dir, ".startup", NULL);
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if (FILE_exist(path))
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ARCH_project = STR_copy(path);
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else
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ARCH_project = STR_copy(FILE_cat(dir, ".project", NULL));
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name = STR_copy(FILE_get_name(dir));
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/*ARCH_project_name = STR_copy(FILE_set_ext(name, NULL));*/
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ARCH_project_name = STR_copy(name);
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if (!ARCH_output)
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ARCH_define_output(strcat((char *)FILE_cat(dir, ARCH_project_name, NULL), ".gambas"));
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STR_free(name);
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STR_free(dir);
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}
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void ARCH_init(void)
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{
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TABLE_create(&arch_table, sizeof(ARCH_SYMBOL), TF_NORMAL);
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ALLOC(&arch_buffer, ARCH_BUFFER_SIZE);
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arch_file = fopen(FILE_cat(FILE_get_dir(ARCH_output), TEMP_EXEC, NULL), "w");
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if (arch_file == NULL)
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THROW("Cannot create temporary archive file: &1", ARCH_output);
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fputs("#! /usr/bin/env gbr" GAMBAS_VERSION_STRING "\n", arch_file);
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while (get_pos() < 31)
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fprintf(arch_file, " ");
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fprintf(arch_file, "\n");
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write_int(ARCH_MAGIC);
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write_int(ARCH_VERSION);
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if (ARCH_verbose)
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printf("Format version: %d\n", ARCH_VERSION);
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pos_start = get_pos();
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write_int(0);
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write_int(0);
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write_int(0);
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write_int(0);
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write_int_at(pos_start, get_pos());
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}
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#if ARCH_VERSION == 2
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static void compress_file_name(const char *src, int lsrc, char **dst, int *ldst)
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{
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char *p;
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static char tpath[PATH_MAX];
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char tpath2[PATH_MAX];
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int len;
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int ind;
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strncpy(tpath, src, lsrc);
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tpath[lsrc] = 0;
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len = lsrc;
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if (ARCH_verbose)
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printf("%s", tpath);
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for(;;)
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{
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p = index(tpath + 1, '/');
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if (!p)
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break;
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if (!TABLE_find_symbol(arch_table, tpath, p - tpath, &ind))
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{
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*p = 0;
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THROW("&1: not in archive", tpath);
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}
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len = snprintf(tpath2, sizeof(tpath2), "/%d:%s", ind, p + 1);
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strcpy(tpath, tpath2);
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}
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if (ARCH_verbose)
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printf(" -> %s\n", tpath);
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*dst = tpath;
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*ldst = len;
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}
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#endif
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void ARCH_exit(void)
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{
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int i;
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ARCH_SYMBOL *sym;
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int pos_str;
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/* Write strings */
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write_int_at(pos_start + sizeof(int), get_pos());
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pos_str = 0;
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for (i = 0; i < TABLE_count(arch_table); i++)
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{
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sym = (ARCH_SYMBOL *)TABLE_get_symbol(arch_table, i);
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write_string(sym->sym.name, sym->sym.len);
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}
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/* Write file names */
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write_int_at(pos_start + sizeof(int) * 2, get_pos());
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write_int_at(pos_start + sizeof(int) * 3, TABLE_count(arch_table));
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for (i = 0; i < TABLE_count(arch_table); i++)
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{
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sym = (ARCH_SYMBOL *)TABLE_get_symbol(arch_table, i);
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//write_short((ushort)i);
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write_int(pos_str);
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write_int(sym->sym.len);
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write_int(sym->pos);
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write_int(sym->len);
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pos_str += sym->sym.len;
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}
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for (i = 0; i < TABLE_count(arch_table); i++)
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write_short(arch_table->sort[i]);
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/* Close file */
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fclose(arch_file);
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make_executable();
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/* Free everything */
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for (i = 0; i < TABLE_count(arch_table); i++)
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STR_free(TABLE_get_symbol(arch_table, i)->name);
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TABLE_delete(&arch_table);
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STR_free(ARCH_output);
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STR_free(ARCH_project);
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STR_free(ARCH_project_name);
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FREE(&arch_buffer);
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}
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int ARCH_add_file(const char *path)
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{
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char *rel_path;
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ARCH_SYMBOL *sym;
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FILE *file;
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struct stat info;
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int len, len_read;
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int ind;
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#if ARCH_VERSION == 2
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compress_file_name(&path[arch_dir_pos], strlen(&path[arch_dir_pos]), &rel_path, &len);
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rel_path = STR_copy(rel_path);
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#else
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rel_path = STR_copy(&path[arch_dir_pos]);
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len = strlen(rel_path);
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#endif
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TABLE_add_symbol(arch_table, rel_path, len, &ind);
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sym = (ARCH_SYMBOL *)TABLE_get_symbol(arch_table, ind);
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sym->pos = get_pos();
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file = fopen(path, "r");
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if (file == NULL)
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THROW("Cannot open file: &1", path);
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fstat(fileno(file), &info);
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if (S_ISDIR(info.st_mode))
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{
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sym->pos = -1;
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sym->len = 0;
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fclose(file);
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if (ARCH_verbose)
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printf("Adding directory %s", rel_path);
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}
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else
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{
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sym->len = info.st_size;
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len = sym->len;
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while (len > 0)
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{
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len_read = fread(arch_buffer, 1, ARCH_BUFFER_SIZE, file);
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if (len_read > 0)
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fwrite(arch_buffer, 1, len_read, arch_file);
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if (len_read < ARCH_BUFFER_SIZE)
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{
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if (ferror(file))
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THROW("Cannot read file: &1: &2", path, strerror(errno));
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else
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break;
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}
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}
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fclose(file);
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if (ARCH_verbose)
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printf("Adding file %s (%d bytes)", rel_path, sym->len);
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}
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if (ARCH_verbose)
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printf(" -> %d\n", ind);
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return ind;
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}
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#if 0
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void ARCH_browse(ARCH *a, void (*found)(const char *path, int64_t size))
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{
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int i;
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ARCH_SYMBOL *asym;
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SYMBOL *sym;
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char *path;
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char *temp;
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int size;
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int ip;
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for (i = 0; i < a->header.n_symbol; i++)
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{
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asym = &a->symbol[i];
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sym = &asym->sym;
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size = asym->len;
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path = STR_copy_len(sym->name, sym->len);
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for(;;)
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{
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if (*path != '/')
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break;
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ip = atoi(&path[1]);
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sym = &a->symbol[ip].sym;
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temp = path;
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path = STR_copy_len(sym->name, sym->len);
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if (path[sym->len - 1] != '/')
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STRING_add(&path, "/", 1);
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STRING_add(&path, strchr(temp, ':') + 1, 0);
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STRING_free(&temp);
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}
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(*found)(path, size);
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STR_free(path);
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}
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}
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#endif
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