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psyced/utility/pkggen.c

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/* Why do we use C for shell scripts?
* Well.. why not?
* Because people like me need to add something and end up spending half
* an hour for a 30 second change.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <time.h>
#define unless(x) if (!(x))
void cvscp(char *filename) {
char cmdline[1000];
printf(">>> %s\n", filename);
snprintf(cmdline, (sizeof cmdline) - 1, "cp %s ../skel", filename);
if (system(cmdline)) {
printf(">> Could not update %s. Exiting.\n", filename);
exit(1);
}
}
void webcp(char *filename) {
char cmdline[1000];
printf(">>> %s\n", filename);
snprintf(cmdline, (sizeof cmdline) - 1, "lynx -dump http://www.psyced.org/%s.html > %s.txt", filename, filename);
if (system(cmdline)) {
printf(">> Could not update %s. Exiting.\n", filename);
exit(1);
}
}
int main(int argc, char **argv) {
time_t t;
struct tm *lt;
char ft[200], s[1000];
int l, hadskel;
time(&t);
lt = localtime(&t);
/* new format without dashes to accomodate gentoo versioning style */
strftime(ft, 199, "%Y%m%d", lt);
/* strftime(ft, 199, "%F", lt); */
if (chdir("skel")) {
hadskel = 0;
printf(">> Welcome. Today is %s. I will create a skel and data directory here.\n", ft);
if (argc != 2) {
printf(">> Usage: %s psyced-<date>.tar.bz2\n", argv[0]);
return 1;
}
l = strlen(argv[1]);
if (l < 10 || l > 30) {
puts(">> This doesn't look like a psyced-<date>.tar.bz2.");
return 1;
}
puts(">> Let me unpack this.");
snprintf(s, (sizeof s) - 1, "tar xvfj %s", argv[1]);
if (system(s)) {
printf(">> Could not untar %s. Exiting.\n", argv[1]);
return 1;
}
argv[1][l - sizeof("tar.bz2")] = 0;
if (rename(argv[1], "skel")) {
printf(">> Could not rename %s. Exiting.\n", argv[1]);
return 1;
}
if (chdir("skel")) {
puts(">> Could not enter skel/. Exiting.");
return 1;
}
}
else {
hadskel = 1;
puts(">> You already have a skel, good. Skipping unpack operation.");
}
if (!unlink(".config")) {
puts(">> Deleted a .config that someone left lying around.");
}
if (mkdir("../data", S_IRWXU)) {
puts(">> Could not create data/. Already there?");
/* return 1; */
} else {
puts(">> Extracting data");
if (system("tar xf data.tar -C../data")) {
puts(">> Error in extracting data.tar. Exiting.");
return 1;
}
}
if (chdir("../data")) {
puts(">> Could not enter data/. Exiting.");
return 1;
}
/* we don't want to update CHANGESTODO. we put a fake file
there so it doesn't download the real thing, later we delete it
system("cp BANNER CHANGESTODO");
hmm, doesn't really work like that
*/
puts(">> Now is your chance to inspect a cvs diff. Suspend now.");
sleep(4);
puts(">> Doing a CVS update");
if (system("cvs -q update -dP")) {
puts(">> Error during CVS update. Exiting.");
return 1;
}
/* because we want to keep it out of the snapshots anyway */
unlink("CHANGESTODO");
/* system("rm .#CHANGESTODO*") */
puts(">> Now is your chance to make manual changes. Suspend now.");
sleep(4);
puts(">> Creating new data.tar");
if (system("tar cf ../skel/data.tar --owner=root --group=root .")) {
puts(">> Error during archiving. Exiting.");
return 1;
}
puts(">> Updating files from CVS");
cvscp("install.sh");
puts(">> Cleaning up data/");
chdir("..");
if (system("rm -rf data")) {
puts(">> Could not remove data/. Exiting.");
return 1;
}
if (chdir("skel")) {
puts(">> Could not enter skel/. Exiting.");
return 1;
}
puts(">> Updating files from Webserver");
webcp("README");
webcp("INSTALL");
webcp("FIRSTSTEPS");
puts(">> Creating archive");
snprintf(s, (sizeof s) - 1, "../psyced-%s", ft);
if (mkdir(s, S_IRWXU)) {
printf(">> Could not create %s/. Exiting.\n", s);
return 1;
}
snprintf(s, (sizeof s) - 1, "tar cf - . | tar xf - -C../psyced-%s", ft);
if (system(s)) {
puts(">> Could not copy data for tarring. Exiting.");
return 1;
}
chdir("..");
snprintf(s, (sizeof s) - 1, "tar cfj psyced-%s.tar.bz2 --owner=root --group=root psyced-%s", ft, ft);
if (system(s)) {
printf(">> Could not create psyced-%s.tar.bz2. Exiting.\n", ft);
return 1;
}
printf(">> psyced-%s.tar.bz2 has been created. Cleaning up.\n", ft);
snprintf(s, (sizeof s) - 1, "rm -rf psyced-%s", ft);
if (system(s)) {
printf(">> Could not remove psyced-%s. Exiting.\n", ft);
return 1;
}
if (!hadskel) {
if (system("rm -r skel")) {
puts(">> I'm done, but I could not remove the skel directory.");
return 1;
}
}
puts(">> Done.");
return 0;
}