mirror of
https://github.com/mruby/mruby
synced 2026-06-08 16:11:16 +00:00
Daniel Bovensiepen
443 lines
10 KiB
C
443 lines
10 KiB
C
#include <string.h>
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#include <stdio.h>
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#include <dirent.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <mrbconf.h>
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#include <stdlib.h>
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static int
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one (const struct dirent *unused)
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{
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return 1;
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}
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/*
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* Does a directory exist?
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* yes => TRUE
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* no => FALSE
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* fs error => FALSE
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*
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*/
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static int
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directory_exists(char path[4096]) {
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DIR* dir = opendir(path);
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if (dir)
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return TRUE;
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else
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return FALSE;
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}
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/*
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* Template generator for each active GEM
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*
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* Arguments:
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* before:
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* String before each GEM template
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* after:
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* String after each GEM template
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* start:
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* String at the start of the template
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* end:
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* String at the end of the template
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* dir_to_skip:
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* Name of a directory which will be skipped
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*
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*/
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static char*
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for_each_gem (char before[1024], char after[1024],
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char start[1024], char end[1024],
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char dir_to_skip[1024])
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{
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/* active GEM check */
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FILE *active_gem_file;
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char gem_char;
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char gem_name[1024] = { 0 };
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int char_index;
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char gem_list[1024][1024] = { { 0 }, { 0 } };
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int gem_index;
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int i;
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int gem_active;
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int cnt;
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/* folder check */
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struct dirent **eps;
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int n;
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char gemname[1024] = { 0 };
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char gemname_path[4096] = { 0 };
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char src_path[4096] = { 0 };
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struct stat attribut;
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/* return value */
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char* complete_line = malloc(4096 + sizeof(char));
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strcpy(complete_line, "");
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strcat(complete_line, start);
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/* Read out the active GEMs */
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active_gem_file = fopen("GEMS.active", "r+");
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if (active_gem_file != NULL) {
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char_index = 0;
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gem_index = 0;
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while((gem_char = fgetc(active_gem_file)) != EOF) {
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if (gem_char == '\n') {
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/* Every line contains one active GEM */
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gem_name[char_index++] = '\0';
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strcpy(gem_list[gem_index++], gem_name);
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gem_name[0] = '\0';
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char_index = 0;
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}
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else
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gem_name[char_index++] = gem_char;
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}
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if (gem_index > 0) {
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/* clean close of the last GEM name */
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gem_name[char_index++] = '\0';
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strcpy(gem_list[gem_index++], gem_name);
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}
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fclose(active_gem_file);
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}
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else { /* Error: Active GEM list couldn't be loaded */ }
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n = scandir("./g", &eps, one, alphasort);
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if (n >= 0) {
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/* iterate over each file and figure out what is a GEM and what not */
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for (cnt = 0; cnt < n; ++cnt) {
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strcpy(gemname, eps[cnt]->d_name);
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strcpy(gemname_path, "./g/");
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strcat(gemname_path, gemname);
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/* we ignore all the default files */
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if (strcmp(gemname, ".") == 0)
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continue;
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if (strcmp(gemname, "..") == 0)
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continue;
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if (strcmp(gemname, ".gitignore") == 0)
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continue;
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/* In case the current location isn't a folder we skip it */
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stat(gemname_path, &attribut);
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if (S_ISDIR(attribut.st_mode) == 0) {
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continue;
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}
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/* Check if user has activated this GEM */
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gem_active = 0;
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for(i = 0; i <= gem_index; i++) {
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if (strcmp(gem_list[i], gemname) != 0)
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gem_active = FALSE;
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else {
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/* Current GEM is active */
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gem_active = TRUE;
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break;
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}
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}
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/* In case the current GEM isn't active we skip it */
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if (gem_active == FALSE)
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continue;
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/* sometimes we are only interested in GEMs
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with a specific folder.
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*/
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if (strcmp(dir_to_skip, "") != 0) {
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strcpy(src_path, gemname_path);
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strcat(src_path, "/");
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strcat(src_path, dir_to_skip);
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if (directory_exists(src_path) != TRUE)
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continue;
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}
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strcat(complete_line, before);
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strcat(complete_line, gemname);
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strcat(complete_line, after);
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}
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}
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else {
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perror("Error while scanning the directory.");
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}
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strcat(complete_line, end);
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return complete_line;
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}
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/*
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* Gem Makefile Generator
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*
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* Global Makefile which starts the build process
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* for every active GEM.
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*
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*/
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void
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make_gem_makefile()
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{
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char *gem_check = { 0 };
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int gem_empty;
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printf("CFLAGS := -I. -I../../include -I../../src\n\n"
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"ifeq ($(OS),Windows_NT)\n"
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"MAKE_FLAGS = --no-print-directory CC=$(CC) LL=$(LL) ALL_CFLAGS='$(ALL_CFLAGS)'\n"
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"else\n"
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"MAKE_FLAGS = --no-print-directory CC='$(CC)' LL='$(LL)' ALL_CFLAGS='$(ALL_CFLAGS)'\n"
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"endif\n\n");
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/* is there any GEM available? */
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gem_check = for_each_gem("", "", "", "", "");
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if (strcmp(gem_check, "") == 0)
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gem_empty = TRUE;
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else
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gem_empty = FALSE;
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/* Makefile Rules to build every single GEM */
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printf(".PHONY : all\n");
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if (gem_empty)
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printf("all :\n\n");
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else {
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printf("all : all_gems\n\n");
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/* Call make for every GEM */
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printf("all_gems :\n%s\n",
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for_each_gem("\t@$(MAKE) -C ", " $(MAKE_FLAGS)\n", "", "", "")
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);
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printf("\n");
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}
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/* Makefile Rules to Test GEMs */
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printf(".PHONY : prepare-test\n"
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"prepare-test :\n"
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);
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if (!gem_empty)
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printf("%s",
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for_each_gem(" ", "/test/*.rb ", "\tcat", " > mrbgemtest.rbtmp", "test")
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);
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else
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printf("\t../generator rbtmp > mrbgemtest.rbtmp");
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printf("\n\t../../bin/mrbc -Bmrbgemtest_irep -omrbgemtest.ctmp mrbgemtest.rbtmp\n\n");
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/* Makefile Rules to Clean GEMs */
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printf(".PHONY : clean\n"
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"clean :\n"
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"\t$(RM) *.c *.d *.rbtmp *.ctmp *.o mrbtest\n");
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if (!gem_empty)
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printf("%s",
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for_each_gem("\t@$(MAKE) clean -C ", " $(MAKE_FLAGS)\n", "", "", "")
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);
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}
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/*
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* Gem Makefile List Generator
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*
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* Creates a Makefile which will be included by other Makefiles
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* which need to know which GEMs are active.
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*
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*/
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void
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make_gem_makefile_list()
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{
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printf("%s",
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for_each_gem(" ", "", "GEM_LIST := ", "\n", "")
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);
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printf("GEM_ARCHIVE_FILES := $(addprefix $(MRUBY_ROOT)/mrbgems/g/, $(GEM_LIST))\n"
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"GEM_ARCHIVE_FILES := $(addsuffix /gem.a, $(GEM_ARCHIVE_FILES))\n"
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"GEM_ARCHIVE_FILES += $(MRUBY_ROOT)/mrbgems/gem_init.a\n\n");
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}
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/*
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* gem_init.c Generator
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*
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*/
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void
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make_gem_init()
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{
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printf("/*\n"
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" * This file contains a list of all\n"
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" * initializing methods which are\n"
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" * necessary to bootstrap all gems.\n"
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" *\n"
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" * IMPORTANT:\n"
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" * This file was generated!\n"
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" * All manual changes will get lost.\n"
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" */\n\n"
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"#include \"mruby.h\"\n");
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/* Protoype definition of all initialization methods */
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printf("\n%s",
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for_each_gem("void GENERATED_TMP_mrb_", "_gem_init(mrb_state*);\n", "", "", "")
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);
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printf("\n");
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/* mrb_init_mrbgems(mrb) method for initialization of all GEMs */
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printf("void\n"
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"mrb_init_mrbgems(mrb_state *mrb) {\n");
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printf( "%s",
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for_each_gem(" GENERATED_TMP_mrb_", "_gem_init(mrb);\n", "", "", "")
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);
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printf("}");
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}
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/*
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* Empty Generator
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*
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* Generates a clean file.
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*
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*/
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void
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make_rbtmp()
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{
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printf("\n");
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}
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/*
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* Header Generator
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*
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* Head of the C Code for loading the GEMs into the interpreter.
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*
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*/
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void
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make_gem_mrblib_header()
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{
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printf("/*\n"
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" * This file is loading the irep\n"
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" * Ruby GEM code.\n"
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" *\n"
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" * IMPORTANT:\n"
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" * This file was generated!\n"
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" * All manual changes will get lost.\n"
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" */\n\n"
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"#include \"mruby.h\"\n"
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"#include \"mruby/irep.h\"\n"
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"#include \"mruby/dump.h\"\n"
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"#include \"mruby/string.h\"\n"
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"#include \"mruby/proc.h\"\n\n");
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}
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/*
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* mrblib Generator
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*
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* Generates the C Code for loading
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* the pure Ruby GEMs into the interpreter.
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*
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*/
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void
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make_gem_mrblib(char argv[1024])
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{
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printf("\n"
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"void\n"
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"GENERATED_TMP_mrb_%s_gem_init(mrb_state *mrb) {\n"
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" int n = mrb_read_irep(mrb, gem_mrblib_irep_%s);\n"
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" mrb_run(mrb, mrb_proc_new(mrb, mrb->irep[n]), mrb_top_self(mrb));\n"
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" if (mrb->exc) {\n"
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" mrb_p(mrb, mrb_obj_value(mrb->exc));\n"
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" exit(0);\n"
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" }\n"
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"}", argv, argv);
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}
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/*
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* srclib Generator
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*
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* Generates the C Code for loading
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* the pure C GEMs into the interpreter.
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*
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*/
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void
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make_gem_srclib(char argv[1024])
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{
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printf("/*\n"
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" * This file is loading the irep\n"
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" * Ruby GEM code.\n"
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" *\n"
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" * IMPORTANT:\n"
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" * This file was generated!\n"
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" * All manual changes will get lost.\n"
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" */\n\n"
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"#include \"mruby.h\"\n");
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printf("\n"
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"void mrb_%s_gem_init(mrb_state*);\n", argv);
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printf("\n"
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"void\n"
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"GENERATED_TMP_mrb_%s_gem_init(mrb_state *mrb) {\n"
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" mrb_%s_gem_init(mrb);\n"
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"}", argv, argv);
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}
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/*
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* mixlib Generator
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*
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* Generates the C Code for loading
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* the mixed Ruby and C GEMs
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* into the interpreter.
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*
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*/
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void
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make_gem_mixlib(char argv[1024])
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{
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printf("\n"
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"void mrb_%s_gem_init(mrb_state*);\n", argv);
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printf("\n"
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"void\n"
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"GENERATED_TMP_mrb_%s_gem_init(mrb_state *mrb) {\n"
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" mrb_%s_gem_init(mrb);\n"
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" int n = mrb_read_irep(mrb, gem_mrblib_irep_%s);\n"
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" mrb_run(mrb, mrb_proc_new(mrb, mrb->irep[n]), mrb_top_self(mrb));\n"
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" if (mrb->exc) {\n"
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" mrb_p(mrb, mrb_obj_value(mrb->exc));\n"
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" exit(0);\n"
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" }\n"
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"}", argv, argv, argv);
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}
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/*
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* Start the generator and decide what to generate.
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*
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*/
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int
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main (int argc, char *argv[])
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{
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const char * argument_info = "Wrong argument! Options: 'makefile', 'gem_init', 'rbtmp', 'gem_mrblib', gem_srclib\n";
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if (argc == 2) {
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if (strcmp(argv[1], "makefile") == 0)
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make_gem_makefile();
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else if (strcmp(argv[1], "makefile_list") == 0)
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make_gem_makefile_list();
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else if (strcmp(argv[1], "gem_init") == 0)
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make_gem_init();
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else if (strcmp(argv[1], "rbtmp") == 0)
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make_rbtmp();
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else if (strcmp(argv[1], "gem_mrblib") == 0)
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make_gem_mrblib_header();
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else {
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printf("%s", argument_info);
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return 1;
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}
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}
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else if (argc == 3) {
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if (strcmp(argv[1], "gem_mrblib") == 0)
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make_gem_mrblib(argv[2]);
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else if (strcmp(argv[1], "gem_srclib") == 0)
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make_gem_srclib(argv[2]);
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else if (strcmp(argv[1], "gem_mixlib") == 0)
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make_gem_mixlib(argv[2]);
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else {
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printf("%s", argument_info);
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return 1;
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}
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}
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else {
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printf("%s", argument_info);
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return 1;
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}
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return 0;
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}
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