Merge branch 'lh/cache'
* lh/cache: Add page 'ls_cache' Redesign the caching layer
This commit is contained in:
Lars Hjemli
melakukan
e19683bede
437
cache.c
437
cache.c
@ -4,117 +4,408 @@
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*
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* Licensed under GNU General Public License v2
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* (see COPYING for full license text)
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*
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*
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* The cache is just a directory structure where each file is a cache slot,
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* and each filename is based on the hash of some key (e.g. the cgit url).
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* Each file contains the full key followed by the cached content for that
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* key.
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*
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*/
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#include "cgit.h"
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#include "cache.h"
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const int NOLOCK = -1;
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#define CACHE_BUFSIZE (1024 * 4)
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char *cache_safe_filename(const char *unsafe)
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struct cache_slot {
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const char *key;
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int keylen;
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int ttl;
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cache_fill_fn fn;
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void *cbdata;
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int cache_fd;
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int lock_fd;
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const char *cache_name;
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const char *lock_name;
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int match;
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struct stat cache_st;
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struct stat lock_st;
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int bufsize;
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char buf[CACHE_BUFSIZE];
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};
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/* Open an existing cache slot and fill the cache buffer with
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* (part of) the content of the cache file. Return 0 on success
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* and errno otherwise.
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*/
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static int open_slot(struct cache_slot *slot)
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{
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static char buf[4][PATH_MAX];
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static int bufidx;
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char *s;
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char c;
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char *bufz;
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int bufkeylen = -1;
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bufidx++;
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bufidx &= 3;
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s = buf[bufidx];
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slot->cache_fd = open(slot->cache_name, O_RDONLY);
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if (slot->cache_fd == -1)
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return errno;
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while(unsafe && (c = *unsafe++) != 0) {
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if (c == '/' || c == ' ' || c == '&' || c == '|' ||
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c == '>' || c == '<' || c == '.')
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c = '_';
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*s++ = c;
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}
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*s = '\0';
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return buf[bufidx];
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if (fstat(slot->cache_fd, &slot->cache_st))
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return errno;
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slot->bufsize = read(slot->cache_fd, slot->buf, sizeof(slot->buf));
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if (slot->bufsize == 0)
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return errno;
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bufz = memchr(slot->buf, 0, slot->bufsize);
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if (bufz)
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bufkeylen = bufz - slot->buf;
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slot->match = bufkeylen == slot->keylen &&
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!memcmp(slot->key, slot->buf, bufkeylen + 1);
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return 0;
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}
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int cache_exist(struct cacheitem *item)
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/* Close the active cache slot */
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static void close_slot(struct cache_slot *slot)
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{
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if (stat(item->name, &item->st)) {
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item->st.st_mtime = 0;
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return 0;
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if (slot->cache_fd > 0) {
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close(slot->cache_fd);
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slot->cache_fd = -1;
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}
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return 1;
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}
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int cache_create_dirs()
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/* Print the content of the active cache slot (but skip the key). */
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static int print_slot(struct cache_slot *slot)
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{
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char *path;
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ssize_t i, j = 0;
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path = fmt("%s", ctx.cfg.cache_root);
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if (mkdir(path, S_IRWXU) && errno!=EEXIST)
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i = lseek(slot->cache_fd, slot->keylen + 1, SEEK_SET);
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if (i != slot->keylen + 1)
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return errno;
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while((i=read(slot->cache_fd, slot->buf, sizeof(slot->buf))) > 0)
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j = write(STDOUT_FILENO, slot->buf, i);
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if (j < 0)
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return errno;
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else
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return 0;
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if (!ctx.repo)
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return 0;
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path = fmt("%s/%s", ctx.cfg.cache_root,
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cache_safe_filename(ctx.repo->url));
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if (mkdir(path, S_IRWXU) && errno!=EEXIST)
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return 0;
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if (ctx.qry.page) {
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path = fmt("%s/%s/%s", ctx.cfg.cache_root,
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cache_safe_filename(ctx.repo->url),
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ctx.qry.page);
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if (mkdir(path, S_IRWXU) && errno!=EEXIST)
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return 0;
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}
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return 1;
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}
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int cache_refill_overdue(const char *lockfile)
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/* Check if the slot has expired */
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static int is_expired(struct cache_slot *slot)
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{
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if (slot->ttl < 0)
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return 0;
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else
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return slot->cache_st.st_mtime + slot->ttl*60 < time(NULL);
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}
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/* Check if the slot has been modified since we opened it.
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* NB: If stat() fails, we pretend the file is modified.
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*/
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static int is_modified(struct cache_slot *slot)
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{
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struct stat st;
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if (stat(lockfile, &st))
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return 0;
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if (stat(slot->cache_name, &st))
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return 1;
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return (st.st_ino != slot->cache_st.st_ino ||
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st.st_mtime != slot->cache_st.st_mtime ||
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st.st_size != slot->cache_st.st_size);
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}
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/* Close an open lockfile */
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static void close_lock(struct cache_slot *slot)
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{
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if (slot->lock_fd > 0) {
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close(slot->lock_fd);
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slot->lock_fd = -1;
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}
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}
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/* Create a lockfile used to store the generated content for a cache
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* slot, and write the slot key + \0 into it.
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* Returns 0 on success and errno otherwise.
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*/
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static int lock_slot(struct cache_slot *slot)
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{
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slot->lock_fd = open(slot->lock_name, O_RDWR|O_CREAT|O_EXCL,
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S_IRUSR|S_IWUSR);
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if (slot->lock_fd == -1)
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return errno;
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write(slot->lock_fd, slot->key, slot->keylen + 1);
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return 0;
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}
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/* Release the current lockfile. If `replace_old_slot` is set the
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* lockfile replaces the old cache slot, otherwise the lockfile is
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* just deleted.
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*/
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static int unlock_slot(struct cache_slot *slot, int replace_old_slot)
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{
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int err;
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if (replace_old_slot)
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err = rename(slot->lock_name, slot->cache_name);
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else
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return (time(NULL) - st.st_mtime > ctx.cfg.cache_max_create_time);
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err = unlink(slot->lock_name);
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return err;
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}
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int cache_lock(struct cacheitem *item)
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/* Generate the content for the current cache slot by redirecting
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* stdout to the lock-fd and invoking the callback function
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*/
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static int fill_slot(struct cache_slot *slot)
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{
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int i = 0;
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char *lockfile = xstrdup(fmt("%s.lock", item->name));
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int tmp;
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top:
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if (++i > ctx.cfg.max_lock_attempts)
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die("cache_lock: unable to lock %s: %s",
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item->name, strerror(errno));
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/* Preserve stdout */
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tmp = dup(STDOUT_FILENO);
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if (tmp == -1)
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return errno;
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item->fd = open(lockfile, O_WRONLY|O_CREAT|O_EXCL, S_IRUSR|S_IWUSR);
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/* Redirect stdout to lockfile */
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if (dup2(slot->lock_fd, STDOUT_FILENO) == -1)
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return errno;
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if (item->fd == NOLOCK && errno == ENOENT && cache_create_dirs())
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goto top;
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/* Generate cache content */
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slot->fn(slot->cbdata);
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if (item->fd == NOLOCK && errno == EEXIST &&
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cache_refill_overdue(lockfile) && !unlink(lockfile))
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goto top;
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/* Restore stdout */
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if (dup2(tmp, STDOUT_FILENO) == -1)
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return errno;
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free(lockfile);
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return (item->fd > 0);
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/* Close the temporary filedescriptor */
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close(tmp);
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return 0;
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}
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int cache_unlock(struct cacheitem *item)
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/* Crude implementation of 32-bit FNV-1 hash algorithm,
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* see http://www.isthe.com/chongo/tech/comp/fnv/ for details
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* about the magic numbers.
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*/
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#define FNV_OFFSET 0x811c9dc5
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#define FNV_PRIME 0x01000193
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unsigned long hash_str(const char *str)
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{
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close(item->fd);
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return (rename(fmt("%s.lock", item->name), item->name) == 0);
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unsigned long h = FNV_OFFSET;
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unsigned char *s = (unsigned char *)str;
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if (!s)
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return h;
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while(*s) {
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h *= FNV_PRIME;
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h ^= *s++;
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}
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return h;
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}
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int cache_cancel_lock(struct cacheitem *item)
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static int process_slot(struct cache_slot *slot)
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{
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return (unlink(fmt("%s.lock", item->name)) == 0);
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}
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int err;
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int cache_expired(struct cacheitem *item)
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{
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if (item->ttl < 0)
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err = open_slot(slot);
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if (!err && slot->match) {
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if (is_expired(slot)) {
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if (!lock_slot(slot)) {
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/* If the cachefile has been replaced between
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* `open_slot` and `lock_slot`, we'll just
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* serve the stale content from the original
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* cachefile. This way we avoid pruning the
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* newly generated slot. The same code-path
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* is chosen if fill_slot() fails for some
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* reason.
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*
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* TODO? check if the new slot contains the
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* same key as the old one, since we would
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* prefer to serve the newest content.
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* This will require us to open yet another
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* file-descriptor and read and compare the
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* key from the new file, so for now we're
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* lazy and just ignore the new file.
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*/
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if (is_modified(slot) || fill_slot(slot)) {
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unlock_slot(slot, 0);
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close_lock(slot);
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} else {
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close_slot(slot);
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unlock_slot(slot, 1);
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slot->cache_fd = slot->lock_fd;
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||||
}
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||||
}
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||||
}
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print_slot(slot);
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||||
close_slot(slot);
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||||
return 0;
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return item->st.st_mtime + item->ttl * 60 < time(NULL);
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||||
}
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||||
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/* If the cache slot does not exist (or its key doesn't match the
|
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* current key), lets try to create a new cache slot for this
|
||||
* request. If this fails (for whatever reason), lets just generate
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||||
* the content without caching it and fool the caller to belive
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||||
* everything worked out (but print a warning on stdout).
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||||
*/
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|
||||
close_slot(slot);
|
||||
if ((err = lock_slot(slot)) != 0) {
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||||
cache_log("[cgit] Unable to lock slot %s: %s (%d)\n",
|
||||
slot->lock_name, strerror(err), err);
|
||||
slot->fn(slot->cbdata);
|
||||
return 0;
|
||||
}
|
||||
|
||||
if ((err = fill_slot(slot)) != 0) {
|
||||
cache_log("[cgit] Unable to fill slot %s: %s (%d)\n",
|
||||
slot->lock_name, strerror(err), err);
|
||||
unlock_slot(slot, 0);
|
||||
close_lock(slot);
|
||||
slot->fn(slot->cbdata);
|
||||
return 0;
|
||||
}
|
||||
// We've got a valid cache slot in the lock file, which
|
||||
// is about to replace the old cache slot. But if we
|
||||
// release the lockfile and then try to open the new cache
|
||||
// slot, we might get a race condition with a concurrent
|
||||
// writer for the same cache slot (with a different key).
|
||||
// Lets avoid such a race by just printing the content of
|
||||
// the lock file.
|
||||
slot->cache_fd = slot->lock_fd;
|
||||
unlock_slot(slot, 1);
|
||||
err = print_slot(slot);
|
||||
close_slot(slot);
|
||||
return err;
|
||||
}
|
||||
|
||||
/* Print cached content to stdout, generate the content if necessary. */
|
||||
int cache_process(int size, const char *path, const char *key, int ttl,
|
||||
cache_fill_fn fn, void *cbdata)
|
||||
{
|
||||
unsigned long hash;
|
||||
int len, i;
|
||||
char filename[1024];
|
||||
char lockname[1024 + 5]; /* 5 = ".lock" */
|
||||
struct cache_slot slot;
|
||||
|
||||
/* If the cache is disabled, just generate the content */
|
||||
if (size <= 0) {
|
||||
fn(cbdata);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Verify input, calculate filenames */
|
||||
if (!path) {
|
||||
cache_log("[cgit] Cache path not specified, caching is disabled\n");
|
||||
fn(cbdata);
|
||||
return 0;
|
||||
}
|
||||
len = strlen(path);
|
||||
if (len > sizeof(filename) - 10) { /* 10 = "/01234567\0" */
|
||||
cache_log("[cgit] Cache path too long, caching is disabled: %s\n",
|
||||
path);
|
||||
fn(cbdata);
|
||||
return 0;
|
||||
}
|
||||
if (!key)
|
||||
key = "";
|
||||
hash = hash_str(key) % size;
|
||||
strcpy(filename, path);
|
||||
if (filename[len - 1] != '/')
|
||||
filename[len++] = '/';
|
||||
for(i = 0; i < 8; i++) {
|
||||
sprintf(filename + len++, "%x",
|
||||
(unsigned char)(hash & 0xf));
|
||||
hash >>= 4;
|
||||
}
|
||||
filename[len] = '\0';
|
||||
strcpy(lockname, filename);
|
||||
strcpy(lockname + len, ".lock");
|
||||
slot.fn = fn;
|
||||
slot.cbdata = cbdata;
|
||||
slot.ttl = ttl;
|
||||
slot.cache_name = filename;
|
||||
slot.lock_name = lockname;
|
||||
slot.key = key;
|
||||
slot.keylen = strlen(key);
|
||||
return process_slot(&slot);
|
||||
}
|
||||
|
||||
/* Return a strftime formatted date/time
|
||||
* NB: the result from this function is to shared memory
|
||||
*/
|
||||
char *sprintftime(const char *format, time_t time)
|
||||
{
|
||||
static char buf[64];
|
||||
struct tm *tm;
|
||||
|
||||
if (!time)
|
||||
return NULL;
|
||||
tm = gmtime(&time);
|
||||
strftime(buf, sizeof(buf)-1, format, tm);
|
||||
return buf;
|
||||
}
|
||||
|
||||
int cache_ls(const char *path)
|
||||
{
|
||||
DIR *dir;
|
||||
struct dirent *ent;
|
||||
int err = 0;
|
||||
struct cache_slot slot;
|
||||
char fullname[1024];
|
||||
char *name;
|
||||
|
||||
if (!path) {
|
||||
cache_log("[cgit] cache path not specified\n");
|
||||
return -1;
|
||||
}
|
||||
if (strlen(path) > 1024 - 10) {
|
||||
cache_log("[cgit] cache path too long: %s\n",
|
||||
path);
|
||||
return -1;
|
||||
}
|
||||
dir = opendir(path);
|
||||
if (!dir) {
|
||||
err = errno;
|
||||
cache_log("[cgit] unable to open path %s: %s (%d)\n",
|
||||
path, strerror(err), err);
|
||||
return err;
|
||||
}
|
||||
strcpy(fullname, path);
|
||||
name = fullname + strlen(path);
|
||||
if (*(name - 1) != '/') {
|
||||
*name++ = '/';
|
||||
*name = '\0';
|
||||
}
|
||||
slot.cache_name = fullname;
|
||||
while((ent = readdir(dir)) != NULL) {
|
||||
if (strlen(ent->d_name) != 8)
|
||||
continue;
|
||||
strcpy(name, ent->d_name);
|
||||
if ((err = open_slot(&slot)) != 0) {
|
||||
cache_log("[cgit] unable to open path %s: %s (%d)\n",
|
||||
fullname, strerror(err), err);
|
||||
continue;
|
||||
}
|
||||
printf("%s %s %10lld %s\n",
|
||||
name,
|
||||
sprintftime("%Y-%m-%d %H:%M:%S",
|
||||
slot.cache_st.st_mtime),
|
||||
slot.cache_st.st_size,
|
||||
slot.buf);
|
||||
close_slot(&slot);
|
||||
}
|
||||
closedir(dir);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Print a message to stdout */
|
||||
void cache_log(const char *format, ...)
|
||||
{
|
||||
va_list args;
|
||||
va_start(args, format);
|
||||
vfprintf(stderr, format, args);
|
||||
va_end(args);
|
||||
}
|
||||
|
||||
|
||||
36
cache.h
36
cache.h
@ -6,18 +6,30 @@
|
||||
#ifndef CGIT_CACHE_H
|
||||
#define CGIT_CACHE_H
|
||||
|
||||
struct cacheitem {
|
||||
char *name;
|
||||
struct stat st;
|
||||
int ttl;
|
||||
int fd;
|
||||
};
|
||||
typedef void (*cache_fill_fn)(void *cbdata);
|
||||
|
||||
extern char *cache_safe_filename(const char *unsafe);
|
||||
extern int cache_lock(struct cacheitem *item);
|
||||
extern int cache_unlock(struct cacheitem *item);
|
||||
extern int cache_cancel_lock(struct cacheitem *item);
|
||||
extern int cache_exist(struct cacheitem *item);
|
||||
extern int cache_expired(struct cacheitem *item);
|
||||
|
||||
/* Print cached content to stdout, generate the content if necessary.
|
||||
*
|
||||
* Parameters
|
||||
* size max number of cache files
|
||||
* path directory used to store cache files
|
||||
* key the key used to lookup cache files
|
||||
* ttl max cache time in seconds for this key
|
||||
* fn content generator function for this key
|
||||
* cbdata user-supplied data to the content generator function
|
||||
*
|
||||
* Return value
|
||||
* 0 indicates success, everyting else is an error
|
||||
*/
|
||||
extern int cache_process(int size, const char *path, const char *key, int ttl,
|
||||
cache_fill_fn fn, void *cbdata);
|
||||
|
||||
|
||||
/* List info about all cache entries on stdout */
|
||||
extern int cache_ls(const char *path);
|
||||
|
||||
/* Print a message to stdout */
|
||||
extern void cache_log(const char *format, ...);
|
||||
|
||||
#endif /* CGIT_CACHE_H */
|
||||
|
||||
166
cgit.c
166
cgit.c
@ -49,6 +49,8 @@ void config_cb(const char *name, const char *value)
|
||||
ctx.cfg.enable_log_filecount = atoi(value);
|
||||
else if (!strcmp(name, "enable-log-linecount"))
|
||||
ctx.cfg.enable_log_linecount = atoi(value);
|
||||
else if (!strcmp(name, "cache-size"))
|
||||
ctx.cfg.cache_size = atoi(value);
|
||||
else if (!strcmp(name, "cache-root"))
|
||||
ctx.cfg.cache_root = xstrdup(value);
|
||||
else if (!strcmp(name, "cache-root-ttl"))
|
||||
@ -147,6 +149,8 @@ static void prepare_context(struct cgit_context *ctx)
|
||||
{
|
||||
memset(ctx, 0, sizeof(ctx));
|
||||
ctx->cfg.agefile = "info/web/last-modified";
|
||||
ctx->cfg.nocache = 0;
|
||||
ctx->cfg.cache_size = 0;
|
||||
ctx->cfg.cache_dynamic_ttl = 5;
|
||||
ctx->cfg.cache_max_create_time = 5;
|
||||
ctx->cfg.cache_repo_ttl = 5;
|
||||
@ -168,47 +172,8 @@ static void prepare_context(struct cgit_context *ctx)
|
||||
ctx->page.mimetype = "text/html";
|
||||
ctx->page.charset = PAGE_ENCODING;
|
||||
ctx->page.filename = NULL;
|
||||
}
|
||||
|
||||
static int cgit_prepare_cache(struct cacheitem *item)
|
||||
{
|
||||
if (!ctx.repo && ctx.qry.repo) {
|
||||
ctx.page.title = fmt("%s - %s", ctx.cfg.root_title,
|
||||
"Bad request");
|
||||
cgit_print_http_headers(&ctx);
|
||||
cgit_print_docstart(&ctx);
|
||||
cgit_print_pageheader(&ctx);
|
||||
cgit_print_error(fmt("Unknown repo: %s", ctx.qry.repo));
|
||||
cgit_print_docend();
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (!ctx.repo) {
|
||||
item->name = xstrdup(fmt("%s/index.%s.html",
|
||||
ctx.cfg.cache_root,
|
||||
cache_safe_filename(ctx.qry.raw)));
|
||||
item->ttl = ctx.cfg.cache_root_ttl;
|
||||
return 1;
|
||||
}
|
||||
|
||||
if (!ctx.qry.page) {
|
||||
item->name = xstrdup(fmt("%s/%s/index.%s.html", ctx.cfg.cache_root,
|
||||
cache_safe_filename(ctx.repo->url),
|
||||
cache_safe_filename(ctx.qry.raw)));
|
||||
item->ttl = ctx.cfg.cache_repo_ttl;
|
||||
} else {
|
||||
item->name = xstrdup(fmt("%s/%s/%s/%s.html", ctx.cfg.cache_root,
|
||||
cache_safe_filename(ctx.repo->url),
|
||||
ctx.qry.page,
|
||||
cache_safe_filename(ctx.qry.raw)));
|
||||
if (ctx.qry.has_symref)
|
||||
item->ttl = ctx.cfg.cache_dynamic_ttl;
|
||||
else if (ctx.qry.has_sha1)
|
||||
item->ttl = ctx.cfg.cache_static_ttl;
|
||||
else
|
||||
item->ttl = ctx.cfg.cache_repo_ttl;
|
||||
}
|
||||
return 1;
|
||||
ctx->page.modified = time(NULL);
|
||||
ctx->page.expires = ctx->page.modified;
|
||||
}
|
||||
|
||||
struct refmatch {
|
||||
@ -293,8 +258,9 @@ static int prepare_repo_cmd(struct cgit_context *ctx)
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void process_request(struct cgit_context *ctx)
|
||||
static void process_request(void *cbdata)
|
||||
{
|
||||
struct cgit_context *ctx = cbdata;
|
||||
struct cgit_cmd *cmd;
|
||||
|
||||
cmd = cgit_get_cmd(ctx);
|
||||
@ -333,82 +299,6 @@ static void process_request(struct cgit_context *ctx)
|
||||
cgit_print_docend();
|
||||
}
|
||||
|
||||
static long ttl_seconds(long ttl)
|
||||
{
|
||||
if (ttl<0)
|
||||
return 60 * 60 * 24 * 365;
|
||||
else
|
||||
return ttl * 60;
|
||||
}
|
||||
|
||||
static void cgit_fill_cache(struct cacheitem *item, int use_cache)
|
||||
{
|
||||
int stdout2;
|
||||
|
||||
if (use_cache) {
|
||||
stdout2 = chk_positive(dup(STDOUT_FILENO),
|
||||
"Preserving STDOUT");
|
||||
chk_zero(close(STDOUT_FILENO), "Closing STDOUT");
|
||||
chk_positive(dup2(item->fd, STDOUT_FILENO), "Dup2(cachefile)");
|
||||
}
|
||||
|
||||
ctx.page.modified = time(NULL);
|
||||
ctx.page.expires = ctx.page.modified + ttl_seconds(item->ttl);
|
||||
process_request(&ctx);
|
||||
|
||||
if (use_cache) {
|
||||
chk_zero(close(STDOUT_FILENO), "Close redirected STDOUT");
|
||||
chk_positive(dup2(stdout2, STDOUT_FILENO),
|
||||
"Restoring original STDOUT");
|
||||
chk_zero(close(stdout2), "Closing temporary STDOUT");
|
||||
}
|
||||
}
|
||||
|
||||
static void cgit_check_cache(struct cacheitem *item)
|
||||
{
|
||||
int i = 0;
|
||||
|
||||
top:
|
||||
if (++i > ctx.cfg.max_lock_attempts) {
|
||||
die("cgit_refresh_cache: unable to lock %s: %s",
|
||||
item->name, strerror(errno));
|
||||
}
|
||||
if (!cache_exist(item)) {
|
||||
if (!cache_lock(item)) {
|
||||
sleep(1);
|
||||
goto top;
|
||||
}
|
||||
if (!cache_exist(item)) {
|
||||
cgit_fill_cache(item, 1);
|
||||
cache_unlock(item);
|
||||
} else {
|
||||
cache_cancel_lock(item);
|
||||
}
|
||||
} else if (cache_expired(item) && cache_lock(item)) {
|
||||
if (cache_expired(item)) {
|
||||
cgit_fill_cache(item, 1);
|
||||
cache_unlock(item);
|
||||
} else {
|
||||
cache_cancel_lock(item);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void cgit_print_cache(struct cacheitem *item)
|
||||
{
|
||||
static char buf[4096];
|
||||
ssize_t i;
|
||||
|
||||
int fd = open(item->name, O_RDONLY);
|
||||
if (fd<0)
|
||||
die("Unable to open cached file %s", item->name);
|
||||
|
||||
while((i=read(fd, buf, sizeof(buf))) > 0)
|
||||
write(STDOUT_FILENO, buf, i);
|
||||
|
||||
close(fd);
|
||||
}
|
||||
|
||||
static void cgit_parse_args(int argc, const char **argv)
|
||||
{
|
||||
int i;
|
||||
@ -443,13 +333,29 @@ static void cgit_parse_args(int argc, const char **argv)
|
||||
}
|
||||
}
|
||||
|
||||
static int calc_ttl()
|
||||
{
|
||||
if (!ctx.repo)
|
||||
return ctx.cfg.cache_root_ttl;
|
||||
|
||||
if (!ctx.qry.page)
|
||||
return ctx.cfg.cache_repo_ttl;
|
||||
|
||||
if (ctx.qry.has_symref)
|
||||
return ctx.cfg.cache_dynamic_ttl;
|
||||
|
||||
if (ctx.qry.has_sha1)
|
||||
return ctx.cfg.cache_static_ttl;
|
||||
|
||||
return ctx.cfg.cache_repo_ttl;
|
||||
}
|
||||
|
||||
int main(int argc, const char **argv)
|
||||
{
|
||||
struct cacheitem item;
|
||||
const char *cgit_config_env = getenv("CGIT_CONFIG");
|
||||
int err, ttl;
|
||||
|
||||
prepare_context(&ctx);
|
||||
item.st.st_mtime = time(NULL);
|
||||
cgit_repolist.length = 0;
|
||||
cgit_repolist.count = 0;
|
||||
cgit_repolist.repos = NULL;
|
||||
@ -463,13 +369,15 @@ int main(int argc, const char **argv)
|
||||
ctx.qry.raw = xstrdup(getenv("QUERY_STRING"));
|
||||
cgit_parse_args(argc, argv);
|
||||
http_parse_querystring(ctx.qry.raw, querystring_cb);
|
||||
if (!cgit_prepare_cache(&item))
|
||||
return 0;
|
||||
if (ctx.cfg.nocache) {
|
||||
cgit_fill_cache(&item, 0);
|
||||
} else {
|
||||
cgit_check_cache(&item);
|
||||
cgit_print_cache(&item);
|
||||
}
|
||||
return 0;
|
||||
|
||||
ttl = calc_ttl();
|
||||
ctx.page.expires += ttl*60;
|
||||
if (ctx.cfg.nocache)
|
||||
ctx.cfg.cache_size = 0;
|
||||
err = cache_process(ctx.cfg.cache_size, ctx.cfg.cache_root,
|
||||
ctx.qry.raw, ttl, process_request, &ctx);
|
||||
if (err)
|
||||
cache_log("[cgit] error %d - %s\n",
|
||||
err, strerror(err));
|
||||
return err;
|
||||
}
|
||||
|
||||
1
cgit.h
1
cgit.h
@ -136,6 +136,7 @@ struct cgit_config {
|
||||
char *root_readme;
|
||||
char *script_name;
|
||||
char *virtual_root;
|
||||
int cache_size;
|
||||
int cache_dynamic_ttl;
|
||||
int cache_max_create_time;
|
||||
int cache_repo_ttl;
|
||||
|
||||
21
cmd.c
21
cmd.c
@ -8,6 +8,8 @@
|
||||
|
||||
#include "cgit.h"
|
||||
#include "cmd.h"
|
||||
#include "cache.h"
|
||||
#include "ui-shared.h"
|
||||
#include "ui-blob.h"
|
||||
#include "ui-commit.h"
|
||||
#include "ui-diff.h"
|
||||
@ -43,17 +45,25 @@ static void diff_fn(struct cgit_context *ctx)
|
||||
cgit_print_diff(ctx->qry.sha1, ctx->qry.sha2, ctx->qry.path);
|
||||
}
|
||||
|
||||
static void repolist_fn(struct cgit_context *ctx)
|
||||
{
|
||||
cgit_print_repolist();
|
||||
}
|
||||
|
||||
static void log_fn(struct cgit_context *ctx)
|
||||
{
|
||||
cgit_print_log(ctx->qry.sha1, ctx->qry.ofs, ctx->cfg.max_commit_count,
|
||||
ctx->qry.grep, ctx->qry.search, ctx->qry.path, 1);
|
||||
}
|
||||
|
||||
static void ls_cache_fn(struct cgit_context *ctx)
|
||||
{
|
||||
ctx->page.mimetype = "text/plain";
|
||||
ctx->page.filename = "ls-cache.txt";
|
||||
cgit_print_http_headers(ctx);
|
||||
cache_ls(ctx->cfg.cache_root);
|
||||
}
|
||||
|
||||
static void repolist_fn(struct cgit_context *ctx)
|
||||
{
|
||||
cgit_print_repolist();
|
||||
}
|
||||
|
||||
static void patch_fn(struct cgit_context *ctx)
|
||||
{
|
||||
cgit_print_patch(ctx->qry.sha1);
|
||||
@ -97,6 +107,7 @@ struct cgit_cmd *cgit_get_cmd(struct cgit_context *ctx)
|
||||
def_cmd(commit, 1, 1),
|
||||
def_cmd(diff, 1, 1),
|
||||
def_cmd(log, 1, 1),
|
||||
def_cmd(ls_cache, 0, 0),
|
||||
def_cmd(patch, 1, 0),
|
||||
def_cmd(refs, 1, 1),
|
||||
def_cmd(repolist, 0, 0),
|
||||
|
||||
@ -44,7 +44,7 @@ setup_repos()
|
||||
virtual-root=/
|
||||
cache-root=$PWD/trash/cache
|
||||
|
||||
nocache=0
|
||||
cache-size=1021
|
||||
snapshots=tar.gz tar.bz zip
|
||||
enable-log-filecount=1
|
||||
enable-log-linecount=1
|
||||
|
||||
67
tests/t0020-validate-cache.sh
Executable file
67
tests/t0020-validate-cache.sh
Executable file
@ -0,0 +1,67 @@
|
||||
#!/bin/sh
|
||||
|
||||
. ./setup.sh
|
||||
|
||||
prepare_tests 'Validate cache'
|
||||
|
||||
run_test 'verify cache-size=0' '
|
||||
|
||||
rm -f trash/cache/* &&
|
||||
sed -i -e "s/cache-size=1021$/cache-size=0/" trash/cgitrc &&
|
||||
cgit_url "" &&
|
||||
cgit_url "foo" &&
|
||||
cgit_url "foo/refs" &&
|
||||
cgit_url "foo/tree" &&
|
||||
cgit_url "foo/log" &&
|
||||
cgit_url "foo/diff" &&
|
||||
cgit_url "foo/patch" &&
|
||||
cgit_url "bar" &&
|
||||
cgit_url "bar/refs" &&
|
||||
cgit_url "bar/tree" &&
|
||||
cgit_url "bar/log" &&
|
||||
cgit_url "bar/diff" &&
|
||||
cgit_url "bar/patch" &&
|
||||
test 0 -eq $(ls trash/cache | wc -l)
|
||||
'
|
||||
|
||||
run_test 'verify cache-size=1' '
|
||||
|
||||
rm -f trash/cache/* &&
|
||||
sed -i -e "s/cache-size=0$/cache-size=1/" trash/cgitrc &&
|
||||
cgit_url "" &&
|
||||
cgit_url "foo" &&
|
||||
cgit_url "foo/refs" &&
|
||||
cgit_url "foo/tree" &&
|
||||
cgit_url "foo/log" &&
|
||||
cgit_url "foo/diff" &&
|
||||
cgit_url "foo/patch" &&
|
||||
cgit_url "bar" &&
|
||||
cgit_url "bar/refs" &&
|
||||
cgit_url "bar/tree" &&
|
||||
cgit_url "bar/log" &&
|
||||
cgit_url "bar/diff" &&
|
||||
cgit_url "bar/patch" &&
|
||||
test 1 -eq $(ls trash/cache | wc -l)
|
||||
'
|
||||
|
||||
run_test 'verify cache-size=1021' '
|
||||
|
||||
rm -f trash/cache/* &&
|
||||
sed -i -e "s/cache-size=1$/cache-size=1021/" trash/cgitrc &&
|
||||
cgit_url "" &&
|
||||
cgit_url "foo" &&
|
||||
cgit_url "foo/refs" &&
|
||||
cgit_url "foo/tree" &&
|
||||
cgit_url "foo/log" &&
|
||||
cgit_url "foo/diff" &&
|
||||
cgit_url "foo/patch" &&
|
||||
cgit_url "bar" &&
|
||||
cgit_url "bar/refs" &&
|
||||
cgit_url "bar/tree" &&
|
||||
cgit_url "bar/log" &&
|
||||
cgit_url "bar/diff" &&
|
||||
cgit_url "bar/patch" &&
|
||||
test 13 -eq $(ls trash/cache | wc -l)
|
||||
'
|
||||
|
||||
tests_done
|
||||
Memuat…
Reference in New Issue
Block a user