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#ifndef VOLGIT_SYSTEM_PART_C
#define VOLGIT_SYSTEM_PART_C VOLGIT_SYSTEM_PART_C
#include <system_part.h>
const char *default_header="<!DOCTYPE html><html><head><title>GIT</title></head><body>";
const char *default_footer="</body></html>";
struct Volgit_Options options;
void parse_options(int argc,char **argv)
{
options.header=default_header;
options.footer=default_footer;
switch(argc)
{
case 5:
options.header=read_file(argv[3]);
options.footer=read_file(argv[4]);
/*falltrough*/
case 3:
options.input_path=argv[1];
options.output_path=argv[2];
break;
default:
die("Usage: volgit source destination [ file-containint-header file-containing-footer ]\n");
}
options.output_dir_fd=open(options.output_path,O_RDONLY|O_DIRECTORY);
if(options.output_dir_fd==-1)
{
mkdir(options.output_path,0770);
options.output_dir_fd=open(options.output_path,O_RDONLY|O_DIRECTORY);
if(options.output_dir_fd==-1)
die("Could not open output dir\n");
}
}
char* read_file(const char *filename)
{
long file_size;
int file;
char *ret;
struct stat file_stats;
file=open(filename,O_RDONLY|O_CREAT);
if(file==-1)
die("Could not open file %s\n",filename);
fstat(file,&file_stats);
ret=malloc(file_stats.st_size+1);
if(ret==NULL)
die("Ran out of memory!\n");
close(file);
return ret;
}
int create_branch_dir(const char *branch_name)
{
int ret=0;
ret=openat(options.output_dir_fd,branch_name,O_DIRECTORY|O_RDONLY);
if(ret==-1)
{
if(mkdirat(options.output_dir_fd,branch_name,0770)==-1)
die("Could not create branch directory for %s\n",branch_name);
ret=openat(options.output_dir_fd,branch_name,O_DIRECTORY|O_RDONLY);
if(ret==-1)
die("Could not open newly created directory for branch %s\n",branch_name);
}
return ret;
}
FILE* create_file(int branch_dir,const char *filename)
{
int fd;
unlinkat(branch_dir,filename,0);
fd=openat(branch_dir,filename,O_CREAT|O_RDWR,0660);
if(fd==-1)
die("Could not open the file '%s' for one of the branches\n",filename);
return fdopen(fd,"w");
}
int create_files_dir(int branch_dir)
{
int ret;
ret=openat(branch_dir,"files",O_DIRECTORY|O_RDONLY);
if(ret!=-1)
return ret;
ret=mkdirat(branch_dir,"files",0770);
if(ret==-1)
die("Could not create the 'files' subdirectory of one of the branch dirs\n");
return ret;
}
int create_diff_dir(int branch_dir)
{
int ret;
ret=openat(branch_dir,"diffs",O_DIRECTORY|O_RDONLY);
if(ret!=-1)
return ret;
mkdirat(branch_dir,"diffs",0770);
ret=openat(branch_dir,"diffs",O_DIRECTORY|O_RDONLY);
if(ret==-1)
die("Could not create the 'diffs' subdirectory of one of the branch dirs\n");
return ret;
}
void die(const char *format, ...)
{
va_list args;
va_start(args,format);
vfprintf(stderr,format,args);
exit(1);
}
#endif
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