Move functions for generic object output into ui-view.c

Signed-off-by: Lars Hjemli <hjemli@gmail.com>

4 files changed, 43 insertions, 34 deletions

diff --git a/Makefile b/Makefile
index 64bbd5c..4e532d0 100644
--- a/Makefile
+++ b/Makefile
@@ -1,28 +1,28 @@
 CGIT_VERSION = 0.1-pre
 
 INSTALL_BIN = /var/www/htdocs/cgit.cgi
 INSTALL_CSS = /var/www/htdocs/cgit.css
 CACHE_ROOT = /var/cache/cgit
 
 EXTLIBS = ../git/libgit.a ../git/xdiff/lib.a -lz -lcrypto
 OBJECTS = cache.o parsing.o html.o ui-shared.o ui-repolist.o ui-summary.o \
-	ui-log.o
+	ui-log.o ui-view.c
 
 CFLAGS += -Wall
 
 all: cgit
 
 install: all
 	install cgit $(INSTALL_BIN)
 	install cgit.css $(INSTALL_CSS)
 	rm -rf $(CACHE_ROOT)/*
 
 cgit: cgit.c cgit.h git.h $(OBJECTS)
 	$(CC) $(CFLAGS) -DCGIT_VERSION='"$(CGIT_VERSION)"' cgit.c -o cgit \
 		$(OBJECTS) $(EXTLIBS)
 
 $(OBJECTS): cgit.h git.h
 
 .PHONY: clean
 clean:
 	rm -f cgit *.o
diff --git a/cgit.c b/cgit.c
index 30a9a2a..52d9bd3 100644
--- a/cgit.c
+++ b/cgit.c
@@ -1,203 +1,171 @@
 /* cgit.c: cgi for the git scm
  *
  * Copyright (C) 2006 Lars Hjemli
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
 #include "cgit.h"
 
 const char cgit_version[] = CGIT_VERSION;
 
 int htmlfd = 0;
 
 char *cgit_root         = "/usr/src/git";
 char *cgit_root_title   = "Git repository browser";
 char *cgit_css          = "/cgit.css";
 char *cgit_logo         = "/git-logo.png";
 char *cgit_logo_link    = "http://www.kernel.org/pub/software/scm/git/docs/";
 char *cgit_virtual_root = NULL;
 
 char *cgit_cache_root   = "/var/cache/cgit";
 
 int cgit_max_lock_attempts     =  5;
 int cgit_cache_root_ttl        =  5;
 int cgit_cache_repo_ttl        =  5;
 int cgit_cache_dynamic_ttl     =  5;
 int cgit_cache_static_ttl      = -1;
 int cgit_cache_max_create_time =  5;
 
 char *cgit_repo_name    = NULL;
 char *cgit_repo_desc    = NULL;
 char *cgit_repo_owner   = NULL;
 
 int cgit_query_has_symref = 0;
 int cgit_query_has_sha1   = 0;
 
 char *cgit_querystring  = NULL;
 char *cgit_query_repo   = NULL;
 char *cgit_query_page   = NULL;
 char *cgit_query_head   = NULL;
 char *cgit_query_sha1   = NULL;
 
 struct cacheitem cacheitem;
 
 void cgit_global_config_cb(const char *name, const char *value)
 {
 	if (!strcmp(name, "root"))
 		cgit_root = xstrdup(value);
 	else if (!strcmp(name, "root-title"))
 		cgit_root_title = xstrdup(value);
 	else if (!strcmp(name, "css"))
 		cgit_css = xstrdup(value);
 	else if (!strcmp(name, "logo"))
 		cgit_logo = xstrdup(value);
 	else if (!strcmp(name, "logo-link"))
 		cgit_logo_link = xstrdup(value);
 	else if (!strcmp(name, "virtual-root"))
 		cgit_virtual_root = xstrdup(value);
 }
 
 void cgit_repo_config_cb(const char *name, const char *value)
 {
 	if (!strcmp(name, "name"))
 		cgit_repo_name = xstrdup(value);
 	else if (!strcmp(name, "desc"))
 		cgit_repo_desc = xstrdup(value);
 	else if (!strcmp(name, "owner"))
 		cgit_repo_owner = xstrdup(value);
 }
 
 void cgit_querystring_cb(const char *name, const char *value)
 {
 	if (!strcmp(name,"r"))
 		cgit_query_repo = xstrdup(value);
 	else if (!strcmp(name, "p"))
 		cgit_query_page = xstrdup(value);
 	else if (!strcmp(name, "h")) {
 		cgit_query_head = xstrdup(value);
 		cgit_query_has_symref = 1;
 	} else if (!strcmp(name, "id")) {
 		cgit_query_sha1 = xstrdup(value);
 		cgit_query_has_sha1 = 1;
 	}
 }
 
-static void cgit_print_object(char *hex)
-{
-	unsigned char sha1[20];
-	//struct object *object;
-	char type[20];
-	unsigned char *buf;
-	unsigned long size;
-
-	if (get_sha1_hex(hex, sha1)){
-		cgit_print_error(fmt("Bad hex value: %s", hex));
-	        return;
-	}
-
-	if (sha1_object_info(sha1, type, NULL)){
-		cgit_print_error("Bad object name");
-		return;
-	}
-
-	buf = read_sha1_file(sha1, type, &size);
-	if (!buf) {
-		cgit_print_error("Error reading object");
-		return;
-	}
-
-	buf[size] = '\0';
-	html("<h2>Object view</h2>");
-	htmlf("sha1=%s<br/>type=%s<br/>size=%i<br/>", hex, type, size);
-	html("<pre>");
-	html_txt(buf);
-	html("</pre>");
-}
-
 static void cgit_print_repo_page(struct cacheitem *item)
 {
 	if (chdir(fmt("%s/%s", cgit_root, cgit_query_repo)) || 
 	    cgit_read_config("info/cgit", cgit_repo_config_cb)) {
 		char *title = fmt("%s - %s", cgit_root_title, "Bad request");
 		cgit_print_docstart(title, item);
 		cgit_print_pageheader(title);
 		cgit_print_error(fmt("Unable to scan repository: %s",
 				     strerror(errno)));
 		cgit_print_docend();
 		return;
 	}
 	setenv("GIT_DIR", fmt("%s/%s", cgit_root, cgit_query_repo), 1);
 	char *title = fmt("%s - %s", cgit_repo_name, cgit_repo_desc);
 	cgit_print_docstart(title, item);
 	cgit_print_pageheader(title);
 	if (!cgit_query_page)
 		cgit_print_summary();
 	else if (!strcmp(cgit_query_page, "log")) {
 		cgit_print_log(cgit_query_head, 0, 100);
 	} else if (!strcmp(cgit_query_page, "view")) {
-		cgit_print_object(cgit_query_sha1);
+		cgit_print_view(cgit_query_sha1);
 	}
 	cgit_print_docend();
 }
 
 static void cgit_fill_cache(struct cacheitem *item)
 {
 	htmlfd = item->fd;
 	item->st.st_mtime = time(NULL);
 	if (cgit_query_repo)
 		cgit_print_repo_page(item);
 	else
 		cgit_print_repolist(item);
 }
 
 static void cgit_refresh_cache(struct cacheitem *item)
 {
 	int i = 0;
 
 	cache_prepare(item);
  top:
 	if (++i > cgit_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);
 		cache_unlock(item);
 	} else if (cache_expired(item) && cache_lock(item)) {
 		if (cache_expired(item))
 			cgit_fill_cache(item);
 		cache_unlock(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);
 }
 
 int main(int argc, const char **argv)
 {
 	cgit_read_config("/etc/cgitrc", cgit_global_config_cb);
 	cgit_querystring = xstrdup(getenv("QUERY_STRING"));
 	cgit_parse_query(cgit_querystring, cgit_querystring_cb);
 	cgit_refresh_cache(&cacheitem);
 	cgit_print_cache(&cacheitem);
 	return 0;
 }
diff --git a/cgit.h b/cgit.h
index 0100763..9c7f0b4 100644
--- a/cgit.h
+++ b/cgit.h
@@ -1,84 +1,85 @@
 #ifndef CGIT_H
 #define CGIT_H
 
 #include "git.h"
 #include <openssl/sha.h>
 #include <ctype.h>
 #include <sched.h>
 
 typedef void (*configfn)(const char *name, const char *value);
 
 struct cacheitem {
 	char *name;
 	struct stat st;
 	int ttl;
 	int fd;
 };
 
 extern const char cgit_version[];
 
 extern char *cgit_root;
 extern char *cgit_root_title;
 extern char *cgit_css;
 extern char *cgit_logo;
 extern char *cgit_logo_link;
 extern char *cgit_virtual_root;
 extern char *cgit_cache_root;
 
 extern int cgit_max_lock_attempts;
 extern int cgit_cache_root_ttl;
 extern int cgit_cache_repo_ttl;
 extern int cgit_cache_dynamic_ttl;
 extern int cgit_cache_static_ttl;
 extern int cgit_cache_max_create_time;
 
 extern char *cgit_repo_name;
 extern char *cgit_repo_desc;
 extern char *cgit_repo_owner;
 
 extern int cgit_query_has_symref;
 extern int cgit_query_has_sha1;
 
 extern char *cgit_querystring;
 extern char *cgit_query_repo;
 extern char *cgit_query_page;
 extern char *cgit_query_head;
 extern char *cgit_query_sha1;
 
 extern int htmlfd;
 
 extern char *fmt(const char *format,...);
 
 extern void html(const char *txt);
 extern void htmlf(const char *format,...);
 extern void html_txt(char *txt);
 extern void html_attr(char *txt);
 extern void html_link_open(char *url, char *title, char *class);
 extern void html_link_close(void);
 
 extern int cgit_read_config(const char *filename, configfn fn);
 extern int cgit_parse_query(char *txt, configfn fn);
 
 extern void cache_prepare(struct cacheitem *item);
 extern int cache_lock(struct cacheitem *item);
 extern int cache_unlock(struct cacheitem *item);
 extern int cache_exist(struct cacheitem *item);
 extern int cache_expired(struct cacheitem *item);
 
 extern char *cgit_repourl(const char *reponame);
 extern char *cgit_pageurl(const char *reponame, const char *pagename, 
 			  const char *query);
 
 extern void cgit_print_error(char *msg);
 extern void cgit_print_docstart(char *title, struct cacheitem *item);
 extern void cgit_print_docend();
 extern void cgit_print_pageheader(char *title);
 
 extern void cgit_print_repolist(struct cacheitem *item);
 extern void cgit_print_summary();
 extern void cgit_print_log(const char *tip, int ofs, int cnt);
+extern void cgit_print_view(char *hex);
 
 extern void cgit_repo_config_cb(const char *name, const char *value);
 
 
 #endif /* CGIT_H */
diff --git a/ui-view.c b/ui-view.c
new file mode 100644
index 0000000..193c685
--- a/dev/null
+++ b/ui-view.c
@@ -0,0 +1,40 @@
+/* ui-view.c: functions to output _any_ object, given it's sha1
+ *
+ * Copyright (C) 2006 Lars Hjemli
+ *
+ * Licensed under GNU General Public License v2
+ *   (see COPYING for full license text)
+ */
+
+#include "cgit.h"
+
+void cgit_print_view(char *hex)
+{
+	unsigned char sha1[20];
+	char type[20];
+	unsigned char *buf;
+	unsigned long size;
+
+	if (get_sha1_hex(hex, sha1)){
+		cgit_print_error(fmt("Bad hex value: %s", hex));
+	        return;
+	}
+
+	if (sha1_object_info(sha1, type, NULL)){
+		cgit_print_error("Bad object name");
+		return;
+	}
+
+	buf = read_sha1_file(sha1, type, &size);
+	if (!buf) {
+		cgit_print_error("Error reading object");
+		return;
+	}
+
+	buf[size] = '\0';
+	html("<h2>Object view</h2>");
+	htmlf("sha1=%s<br/>type=%s<br/>size=%i<br/>", hex, type, size);
+	html("<pre>");
+	html_txt(buf);
+	html("</pre>");
+}