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-rw-r--r--.gitignore1
-rw-r--r--Makefile6
-rw-r--r--README54
-rw-r--r--cache.c86
-rw-r--r--cgit.c117
-rw-r--r--cgit.h47
-rw-r--r--config.c4
-rw-r--r--git.h60
-rw-r--r--html.c6
9 files changed, 353 insertions, 28 deletions
diff --git a/.gitignore b/.gitignore
index 4eaec97..c4c9ac3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
1# Files I don't care to see in git-status/commit 1# Files I don't care to see in git-status/commit
2cgit 2cgit
3*.o 3*.o
4*~
diff --git a/Makefile b/Makefile
index 4e72b07..243f590 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,9 @@ INSTALL_BIN = /var/www/htdocs/cgit.cgi
3INSTALL_CSS = /var/www/htdocs/cgit.css 3INSTALL_CSS = /var/www/htdocs/cgit.css
4 4
5EXTLIBS = ../git/libgit.a ../git/xdiff/lib.a -lz -lcrypto 5EXTLIBS = ../git/libgit.a ../git/xdiff/lib.a -lz -lcrypto
6OBJECTS = cgit.o config.o html.o 6OBJECTS = cgit.o config.o html.o cache.o
7
8CFLAGS += -Wall
7 9
8all: cgit 10all: cgit
9 11
@@ -15,6 +17,6 @@ clean:
15 rm -f cgit *.o 17 rm -f cgit *.o
16 18
17cgit: $(OBJECTS) 19cgit: $(OBJECTS)
18 $(CC) -o cgit $(OBJECTS) $(EXTLIBS) 20 $(CC) $(CFLAGS) -o cgit $(OBJECTS) $(EXTLIBS)
19 21
20$(OBJECTS): cgit.h git.h 22$(OBJECTS): cgit.h git.h
diff --git a/README b/README
new file mode 100644
index 0000000..5917c37
--- /dev/null
+++ b/README
@@ -0,0 +1,54 @@
1Cache algorithm
2===============
3
4Cgit normally returns cached pages when invoked. If there is no cache file, or
5the cache file has expired, it is regenerated. Finally, the cache file is
6printed on stdout.
7
8When it is decided that a cache file needs to be regenerated, an attempt is
9made to create a corresponding lockfile. If this fails, the process gives up
10and uses the expired cache file instead.
11
12When there is no cache file for a request, an attempt is made to create a
13corresponding lockfile. If this fails, the process calls sched_yield(2) before
14restarting the request handling.
15
16In pseudocode:
17
18 name = generate_cache_name(request);
19top:
20 if (!exists(name)) {
21 if (lock_cache(name)) {
22 generate_cache(request, name);
23 unlock_cache(name);
24 } else {
25 sched_yield();
26 goto top;
27 }
28 } else if (expired(name)) {
29 if (lock_cache(name)) {
30 generate_cache(request, name);
31 unlock_cache(name);
32 }
33 }
34 print_file(name);
35
36
37The following options can be set in /etc/cgitrc to control cache behaviour:
38 cache-root: root directory for cache files
39 cache-root-ttl: TTL for the repo listing page
40 cache-repo-ttl: TTL for any repos summary page
41 cache-dynamic-ttl: TTL for pages with symbolic references (not SHA1)
42 cache-static-ttl: TTL for pages with sha1 references
43
44TTL is specified in minutes, -1 meaning "infinite caching".
45
46
47Naming of cache files
48---------------------
49Repository listing: <cachedir>/index.html
50Repository summary: <cachedir>/<repo>/index.html
51Repository subpage: <cachedir>/<repo>/<page>/<querystring>.html
52
53The corresponding lock files have a ".lock" suffix.
54
diff --git a/cache.c b/cache.c
new file mode 100644
index 0000000..1be1ea4
--- /dev/null
+++ b/cache.c
@@ -0,0 +1,86 @@
1#include "cgit.h"
2
3const int NOLOCK = -1;
4
5int cache_lookup(struct cacheitem *item)
6{
7 if (!cgit_query_repo) {
8 item->name = xstrdup(fmt("%s/index.html", cgit_cache_root));
9 item->ttl = cgit_cache_root_ttl;
10 } else if (!cgit_query_page) {
11 item->name = xstrdup(fmt("%s/%s/index.html", cgit_cache_root,
12 cgit_query_repo));
13 item->ttl = cgit_cache_repo_ttl;
14 } else {
15 item->name = xstrdup(fmt("%s/%s/%s/%s.html", cgit_cache_root,
16 cgit_query_repo, cgit_query_page,
17 cgit_querystring));
18 if (cgit_query_has_symref)
19 item->ttl = cgit_cache_dynamic_ttl;
20 else if (cgit_query_has_sha1)
21 item->ttl = cgit_cache_static_ttl;
22 else
23 item->ttl = cgit_cache_repo_ttl;
24 }
25 if (stat(item->name, &item->st)) {
26 item->st.st_mtime = 0;
27 return 0;
28 }
29 return 1;
30}
31
32int cache_create_dirs()
33{
34 char *path;
35
36 if (!cgit_query_repo)
37 return 0;
38
39 path = fmt("%s/%s", cgit_cache_root, cgit_query_repo);
40 if (mkdir(path, S_IRWXU) && errno!=EEXIST)
41 return 0;
42
43 if (cgit_query_page) {
44 path = fmt("%s/%s/%s", cgit_cache_root, cgit_query_repo,
45 cgit_query_page);
46 if (mkdir(path, S_IRWXU) && errno!=EEXIST)
47 return 0;
48 }
49 return 1;
50}
51
52int cache_lock(struct cacheitem *item)
53{
54 int ret;
55 char *lockfile = fmt("%s.lock", item->name);
56
57 top:
58 item->fd = open(lockfile, O_WRONLY | O_CREAT | O_EXCL, S_IRUSR|S_IWUSR);
59 if (item->fd == NOLOCK && errno == ENOENT && cache_create_dirs())
60 goto top;
61 if (item->fd == NOLOCK && errno == EEXIST) {
62 struct stat st;
63 time_t t;
64 if (stat(lockfile, &st))
65 return ret;
66 t = time(NULL);
67 if (t-st.st_mtime > cgit_cache_max_create_time &&
68 !unlink(lockfile))
69 goto top;
70 return 0;
71 }
72 return (item->fd > 0);
73}
74
75int cache_unlock(struct cacheitem *item)
76{
77 close(item->fd);
78 return (rename(fmt("%s.lock", item->name), item->name) == 0);
79}
80
81int cache_expired(struct cacheitem *item)
82{
83 if (item->ttl < 0)
84 return 0;
85 return item->st.st_mtime + item->ttl * 60 < time(NULL);
86}
diff --git a/cgit.c b/cgit.c
index 4c14f77..09c857c 100644
--- a/cgit.c
+++ b/cgit.c
@@ -10,29 +10,47 @@ static const char cgit_error[] =
10static const char cgit_lib_error[] = 10static const char cgit_lib_error[] =
11"<div class='error'>%s: %s</div>"; 11"<div class='error'>%s: %s</div>";
12 12
13int htmlfd = 0;
13 14
14char *cgit_root = "/var/git"; 15char *cgit_root = "/usr/src/git";
15char *cgit_root_title = "Git repository browser"; 16char *cgit_root_title = "Git repository browser";
16char *cgit_css = "/cgit.css"; 17char *cgit_css = "/cgit.css";
17char *cgit_logo = "/git-logo.png"; 18char *cgit_logo = "/git-logo.png";
18char *cgit_logo_link = "http://www.kernel.org/pub/software/scm/git/docs/"; 19char *cgit_logo_link = "http://www.kernel.org/pub/software/scm/git/docs/";
19char *cgit_virtual_root = NULL; 20char *cgit_virtual_root = NULL;
20 21
22char *cgit_cache_root = "/var/cache/cgit";
23
24int cgit_cache_root_ttl = 5;
25int cgit_cache_repo_ttl = 5;
26int cgit_cache_dynamic_ttl = 5;
27int cgit_cache_static_ttl = -1;
28int cgit_cache_max_create_time = 5;
29
21char *cgit_repo_name = NULL; 30char *cgit_repo_name = NULL;
22char *cgit_repo_desc = NULL; 31char *cgit_repo_desc = NULL;
23char *cgit_repo_owner = NULL; 32char *cgit_repo_owner = NULL;
24 33
34int cgit_query_has_symref = 0;
35int cgit_query_has_sha1 = 0;
36
37char *cgit_querystring = NULL;
25char *cgit_query_repo = NULL; 38char *cgit_query_repo = NULL;
26char *cgit_query_page = NULL; 39char *cgit_query_page = NULL;
27char *cgit_query_head = NULL; 40char *cgit_query_head = NULL;
41char *cgit_query_sha1 = NULL;
42
43struct cacheitem cacheitem;
28 44
29int cgit_parse_query(char *txt, configfn fn) 45int cgit_parse_query(char *txt, configfn fn)
30{ 46{
31 char *t = txt, *value = NULL, c; 47 char *t, *value = NULL, c;
32 48
33 if (!txt) 49 if (!txt)
34 return 0; 50 return 0;
35 51
52 t = txt = xstrdup(txt);
53
36 while((c=*t) != '\0') { 54 while((c=*t) != '\0') {
37 if (c=='=') { 55 if (c=='=') {
38 *t = '\0'; 56 *t = '\0';
@@ -82,8 +100,13 @@ void cgit_querystring_cb(const char *name, const char *value)
82 cgit_query_repo = xstrdup(value); 100 cgit_query_repo = xstrdup(value);
83 else if (!strcmp(name, "p")) 101 else if (!strcmp(name, "p"))
84 cgit_query_page = xstrdup(value); 102 cgit_query_page = xstrdup(value);
85 else if (!strcmp(name, "h")) 103 else if (!strcmp(name, "h")) {
86 cgit_query_head = xstrdup(value); 104 cgit_query_head = xstrdup(value);
105 cgit_query_has_symref = 1;
106 } else if (!strcmp(name, "id")) {
107 cgit_query_sha1 = xstrdup(value);
108 cgit_query_has_sha1 = 1;
109 }
87} 110}
88 111
89char *cgit_repourl(const char *reponame) 112char *cgit_repourl(const char *reponame)
@@ -136,9 +159,32 @@ static int cgit_print_branch_cb(const char *refname, const unsigned char *sha1,
136 return 0; 159 return 0;
137} 160}
138 161
162/* Sun, 06 Nov 1994 08:49:37 GMT */
163static char *http_date(time_t t)
164{
165 static char day[][4] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
166 static char month[][4] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
167 "Jul", "Aug", "Sep", "Oct", "Now", "Dec"};
168 struct tm *tm = gmtime(&t);
169 return fmt("%s, %02d %s %04d %02d:%02d:%02d GMT", day[tm->tm_wday],
170 tm->tm_mday, month[tm->tm_mon], 1900+tm->tm_year,
171 tm->tm_hour, tm->tm_min, tm->tm_sec);
172}
173
174static int ttl_seconds(int ttl)
175{
176 if (ttl<0)
177 return 60 * 60 * 24 * 365;
178 else
179 return ttl * 60;
180}
181
139static void cgit_print_docstart(char *title) 182static void cgit_print_docstart(char *title)
140{ 183{
141 html("Content-Type: text/html; charset=utf-8\n"); 184 html("Content-Type: text/html; charset=utf-8\n");
185 htmlf("Last-Modified: %s\n", http_date(cacheitem.st.st_mtime));
186 htmlf("Expires: %s\n", http_date(cacheitem.st.st_mtime +
187 ttl_seconds(cacheitem.ttl)));
142 html("\n"); 188 html("\n");
143 html(cgit_doctype); 189 html(cgit_doctype);
144 html("<html>\n"); 190 html("<html>\n");
@@ -175,6 +221,7 @@ static void cgit_print_repolist()
175 struct stat st; 221 struct stat st;
176 char *name; 222 char *name;
177 223
224 chdir(cgit_root);
178 cgit_print_docstart(cgit_root_title); 225 cgit_print_docstart(cgit_root_title);
179 cgit_print_pageheader(cgit_root_title); 226 cgit_print_pageheader(cgit_root_title);
180 227
@@ -197,7 +244,7 @@ static void cgit_print_repolist()
197 continue; 244 continue;
198 245
199 cgit_repo_name = cgit_repo_desc = cgit_repo_owner = NULL; 246 cgit_repo_name = cgit_repo_desc = cgit_repo_owner = NULL;
200 name = fmt("%s/.git/info/cgit", de->d_name); 247 name = fmt("%s/info/cgit", de->d_name);
201 if (cgit_read_config(name, cgit_repo_config_cb)) 248 if (cgit_read_config(name, cgit_repo_config_cb))
202 continue; 249 continue;
203 250
@@ -291,7 +338,7 @@ static void cgit_print_commit_shortlog(struct commit *commit)
291 strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", time); 338 strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", time);
292 html_txt(buf); 339 html_txt(buf);
293 html("</td><td>"); 340 html("</td><td>");
294 char *qry = fmt("h=%s", sha1_to_hex(commit->object.sha1)); 341 char *qry = fmt("id=%s", sha1_to_hex(commit->object.sha1));
295 char *url = cgit_pageurl(cgit_query_repo, "view", qry); 342 char *url = cgit_pageurl(cgit_query_repo, "view", qry);
296 html_link_open(url, NULL, NULL); 343 html_link_open(url, NULL, NULL);
297 html_txt(subject); 344 html_txt(subject);
@@ -371,8 +418,8 @@ static void cgit_print_object(char *hex)
371 418
372static void cgit_print_repo_page() 419static void cgit_print_repo_page()
373{ 420{
374 if (chdir(cgit_query_repo) || 421 if (chdir(fmt("%s/%s", cgit_root, cgit_query_repo)) ||
375 cgit_read_config(".git/info/cgit", cgit_repo_config_cb)) { 422 cgit_read_config("info/cgit", cgit_repo_config_cb)) {
376 char *title = fmt("%s - %s", cgit_root_title, "Bad request"); 423 char *title = fmt("%s - %s", cgit_root_title, "Bad request");
377 cgit_print_docstart(title); 424 cgit_print_docstart(title);
378 cgit_print_pageheader(title); 425 cgit_print_pageheader(title);
@@ -381,7 +428,7 @@ static void cgit_print_repo_page()
381 cgit_print_docend(); 428 cgit_print_docend();
382 return; 429 return;
383 } 430 }
384 431 setenv("GIT_DIR", fmt("%s/%s", cgit_root, cgit_query_repo), 1);
385 char *title = fmt("%s - %s", cgit_repo_name, cgit_repo_desc); 432 char *title = fmt("%s - %s", cgit_repo_name, cgit_repo_desc);
386 cgit_print_docstart(title); 433 cgit_print_docstart(title);
387 cgit_print_pageheader(title); 434 cgit_print_pageheader(title);
@@ -390,21 +437,61 @@ static void cgit_print_repo_page()
390 else if (!strcmp(cgit_query_page, "log")) { 437 else if (!strcmp(cgit_query_page, "log")) {
391 cgit_print_log(cgit_query_head, 0, 100); 438 cgit_print_log(cgit_query_head, 0, 100);
392 } else if (!strcmp(cgit_query_page, "view")) { 439 } else if (!strcmp(cgit_query_page, "view")) {
393 cgit_print_object(cgit_query_head); 440 cgit_print_object(cgit_query_sha1);
394 } 441 }
395 cgit_print_docend(); 442 cgit_print_docend();
396} 443}
397 444
398int main(int argc, const char **argv) 445static void cgit_fill_cache(struct cacheitem *item)
399{ 446{
400 if (cgit_read_config("/etc/cgitrc", cgit_global_config_cb)) 447 htmlfd = item->fd;
401 die("Error reading config: %d %s", errno, strerror(errno)); 448 item->st.st_mtime = time(NULL);
402
403 chdir(cgit_root);
404 cgit_parse_query(getenv("QUERY_STRING"), cgit_querystring_cb);
405 if (cgit_query_repo) 449 if (cgit_query_repo)
406 cgit_print_repo_page(); 450 cgit_print_repo_page();
407 else 451 else
408 cgit_print_repolist(); 452 cgit_print_repolist();
453}
454
455static void cgit_refresh_cache(struct cacheitem *item)
456{
457 top:
458 if (!cache_lookup(item)) {
459 if (cache_lock(item)) {
460 cgit_fill_cache(item);
461 cache_unlock(item);
462 } else {
463 sched_yield();
464 goto top;
465 }
466 } else if (cache_expired(item)) {
467 if (cache_lock(item)) {
468 cgit_fill_cache(item);
469 cache_unlock(item);
470 }
471 }
472}
473
474static void cgit_print_cache(struct cacheitem *item)
475{
476 static char buf[4096];
477 ssize_t i;
478
479 int fd = open(item->name, O_RDONLY);
480 if (fd<0)
481 die("Unable to open cached file %s", item->name);
482
483 while((i=read(fd, buf, sizeof(buf))) > 0)
484 write(STDOUT_FILENO, buf, i);
485
486 close(fd);
487}
488
489int main(int argc, const char **argv)
490{
491 cgit_read_config("/etc/cgitrc", cgit_global_config_cb);
492 cgit_querystring = xstrdup(getenv("QUERY_STRING"));
493 cgit_parse_query(cgit_querystring, cgit_querystring_cb);
494 cgit_refresh_cache(&cacheitem);
495 cgit_print_cache(&cacheitem);
409 return 0; 496 return 0;
410} 497}
diff --git a/cgit.h b/cgit.h
index 19f7ba7..1e084d4 100644
--- a/cgit.h
+++ b/cgit.h
@@ -3,6 +3,46 @@
3 3
4#include "git.h" 4#include "git.h"
5#include <openssl/sha.h> 5#include <openssl/sha.h>
6#include <ctype.h>
7#include <sched.h>
8
9typedef void (*configfn)(const char *name, const char *value);
10
11struct cacheitem {
12 char *name;
13 struct stat st;
14 int ttl;
15 int fd;
16};
17
18extern char *cgit_root;
19extern char *cgit_root_title;
20extern char *cgit_css;
21extern char *cgit_logo;
22extern char *cgit_logo_link;
23extern char *cgit_virtual_root;
24extern char *cgit_cache_root;
25
26extern int cgit_cache_root_ttl;
27extern int cgit_cache_repo_ttl;
28extern int cgit_cache_dynamic_ttl;
29extern int cgit_cache_static_ttl;
30extern int cgit_cache_max_create_time;
31
32extern char *cgit_repo_name;
33extern char *cgit_repo_desc;
34extern char *cgit_repo_owner;
35
36extern int cgit_query_has_symref;
37extern int cgit_query_has_sha1;
38
39extern char *cgit_querystring;
40extern char *cgit_query_repo;
41extern char *cgit_query_page;
42extern char *cgit_query_head;
43extern char *cgit_query_sha1;
44
45extern int htmlfd;
6 46
7extern char *fmt(const char *format,...); 47extern char *fmt(const char *format,...);
8 48
@@ -10,12 +50,15 @@ extern void html(const char *txt);
10extern void htmlf(const char *format,...); 50extern void htmlf(const char *format,...);
11extern void html_txt(char *txt); 51extern void html_txt(char *txt);
12extern void html_attr(char *txt); 52extern void html_attr(char *txt);
13
14extern void html_link_open(char *url, char *title, char *class); 53extern void html_link_open(char *url, char *title, char *class);
15extern void html_link_close(void); 54extern void html_link_close(void);
16 55
17typedef void (*configfn)(const char *name, const char *value);
18 56
19extern int cgit_read_config(const char *filename, configfn fn); 57extern int cgit_read_config(const char *filename, configfn fn);
20 58
59extern int cache_lookup(struct cacheitem *item);
60extern int cache_lock(struct cacheitem *item);
61extern int cache_unlock(struct cacheitem *item);
62extern int cache_expired(struct cacheitem *item);
63
21#endif /* CGIT_H */ 64#endif /* CGIT_H */
diff --git a/config.c b/config.c
index 858ab69..ee49b62 100644
--- a/config.c
+++ b/config.c
@@ -32,7 +32,7 @@ int read_config_line(FILE *f, char *line, const char **value, int bufsize)
32 skip_line(f); 32 skip_line(f);
33 continue; 33 continue;
34 } 34 }
35 if (!isname && isblank(c)) 35 if (!isname && isspace(c))
36 continue; 36 continue;
37 37
38 if (c=='=' && !*value) { 38 if (c=='=' && !*value) {
@@ -64,7 +64,7 @@ int cgit_read_config(const char *filename, configfn fn)
64 if (!f) 64 if (!f)
65 return -1; 65 return -1;
66 66
67 while(len = read_config_line(f, line, &value, sizeof(line))) 67 while((len = read_config_line(f, line, &value, sizeof(line))) > 0)
68 (*fn)(line, value); 68 (*fn)(line, value);
69 69
70 fclose(f); 70 fclose(f);
diff --git a/git.h b/git.h
index 443f216..dfa3542 100644
--- a/git.h
+++ b/git.h
@@ -33,6 +33,26 @@
33#include <time.h> 33#include <time.h>
34 34
35 35
36/* On most systems <limits.h> would have given us this, but
37 * not on some systems (e.g. GNU/Hurd).
38 */
39#ifndef PATH_MAX
40#define PATH_MAX 4096
41#endif
42
43#ifdef __GNUC__
44#define NORETURN __attribute__((__noreturn__))
45#else
46#define NORETURN
47#ifndef __attribute__
48#define __attribute__(x)
49#endif
50#endif
51
52
53extern void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2)));
54
55
36static inline char* xstrdup(const char *str) 56static inline char* xstrdup(const char *str)
37{ 57{
38 char *ret = strdup(str); 58 char *ret = strdup(str);
@@ -108,9 +128,13 @@ static inline ssize_t xwrite(int fd, const void *buf, size_t len)
108#define MINIMUM_ABBREV 4 128#define MINIMUM_ABBREV 4
109#define DEFAULT_ABBREV 7 129#define DEFAULT_ABBREV 7
110 130
131extern int sha1_object_info(const unsigned char *, char *, unsigned long *);
111 132
112extern void * read_sha1_file(const unsigned char *sha1, char *type, unsigned long *size); 133extern void * read_sha1_file(const unsigned char *sha1, char *type, unsigned long *size);
113 134
135extern int get_sha1(const char *str, unsigned char *sha1);
136extern int get_sha1_hex(const char *hex, unsigned char *sha1);
137extern char *sha1_to_hex(const unsigned char *sha1); /* static buffer result! */
114 138
115 139
116 140
@@ -183,6 +207,21 @@ struct commit {
183}; 207};
184 208
185 209
210struct commit *lookup_commit(const unsigned char *sha1);
211struct commit *lookup_commit_reference(const unsigned char *sha1);
212struct commit *lookup_commit_reference_gently(const unsigned char *sha1,
213 int quiet);
214
215int parse_commit_buffer(struct commit *item, void *buffer, unsigned long size);
216int parse_commit(struct commit *item);
217
218struct commit_list * commit_list_insert(struct commit *item, struct commit_list **list_p);
219struct commit_list * insert_by_date(struct commit *item, struct commit_list **list);
220
221void free_commit_list(struct commit_list *list);
222
223void sort_by_date(struct commit_list **list);
224
186/* Commit formats */ 225/* Commit formats */
187enum cmit_fmt { 226enum cmit_fmt {
188 CMIT_FMT_RAW, 227 CMIT_FMT_RAW,
@@ -197,13 +236,9 @@ enum cmit_fmt {
197 CMIT_FMT_UNSPECIFIED, 236 CMIT_FMT_UNSPECIFIED,
198}; 237};
199 238
239extern unsigned long pretty_print_commit(enum cmit_fmt fmt, const struct commit *, unsigned long len, char *buf, unsigned long space, int abbrev, const char *subject, const char *after_subject, int relative_date);
200 240
201 241
202struct commit *lookup_commit(const unsigned char *sha1);
203struct commit *lookup_commit_reference(const unsigned char *sha1);
204struct commit *lookup_commit_reference_gently(const unsigned char *sha1,
205 int quiet);
206
207typedef void (*topo_sort_set_fn_t)(struct commit*, void *data); 242typedef void (*topo_sort_set_fn_t)(struct commit*, void *data);
208typedef void* (*topo_sort_get_fn_t)(struct commit*); 243typedef void* (*topo_sort_get_fn_t)(struct commit*);
209 244
@@ -306,6 +341,16 @@ enum color_diff {
306 341
307 342
308 343
344/*
345 * from git:refs.g
346 */
347
348typedef int each_ref_fn(const char *refname, const unsigned char *sha1, int flags, void *cb_data);
349extern int head_ref(each_ref_fn, void *);
350extern int for_each_ref(each_ref_fn, void *);
351extern int for_each_tag_ref(each_ref_fn, void *);
352extern int for_each_branch_ref(each_ref_fn, void *);
353extern int for_each_remote_ref(each_ref_fn, void *);
309 354
310 355
311 356
@@ -391,6 +436,11 @@ struct rev_info {
391}; 436};
392 437
393 438
439extern void init_revisions(struct rev_info *revs, const char *prefix);
440extern int setup_revisions(int argc, const char **argv, struct rev_info *revs, const char *def);
441extern int handle_revision_arg(const char *arg, struct rev_info *revs,int flags,int cant_be_filename);
442
443extern void prepare_revision_walk(struct rev_info *revs);
394extern struct commit *get_revision(struct rev_info *revs); 444extern struct commit *get_revision(struct rev_info *revs);
395 445
396 446
diff --git a/html.c b/html.c
index 5780dc1..bf1490f 100644
--- a/html.c
+++ b/html.c
@@ -20,16 +20,18 @@ char *fmt(const char *format, ...)
20 20
21void html(const char *txt) 21void html(const char *txt)
22{ 22{
23 fputs(txt, stdout); 23 write(htmlfd, txt, strlen(txt));
24} 24}
25 25
26void htmlf(const char *format, ...) 26void htmlf(const char *format, ...)
27{ 27{
28 static char buf[65536];
28 va_list args; 29 va_list args;
29 30
30 va_start(args, format); 31 va_start(args, format);
31 vprintf(format, args); 32 vsnprintf(buf, sizeof(buf), format, args);
32 va_end(args); 33 va_end(args);
34 html(buf);
33} 35}
34 36
35void html_txt(char *txt) 37void html_txt(char *txt)