Add ui-commit.c + misc ui cleanups

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

9 files changed, 140 insertions, 19 deletions

diff --git a/Makefile b/Makefile
index 2a4d62a..58a583b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,30 +1,30 @@
 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 = shared.o cache.o parsing.o html.o ui-shared.o ui-repolist.o \
-        ui-summary.o ui-log.o ui-view.c ui-tree.c
+        ui-summary.o ui-log.o ui-view.c ui-tree.c ui-commit.c
 
 CFLAGS += -Wall
 
 all: cgit
 
 install: all clean-cache
         install cgit $(INSTALL_BIN)
         install cgit.css $(INSTALL_CSS)
 
 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
 
 clean-cache:
         rm -rf $(CACHE_ROOT)/*
diff --git a/cgit.c b/cgit.c
index d7e586d..37cdb83 100644
--- a/cgit.c
+++ b/cgit.c
@@ -1,82 +1,84 @@
 /* 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;
 
 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, cgit_query_ofs, 100);
         } else if (!strcmp(cgit_query_page, "tree")) {
                 cgit_print_tree(cgit_query_sha1);
+        } else if (!strcmp(cgit_query_page, "commit")) {
+                cgit_print_commit(cgit_query_sha1);
         } else if (!strcmp(cgit_query_page, "view")) {
                 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_check_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 {
                         cache_cancel_lock(item);
                 }
         } else if (cache_expired(item) && cache_lock(item)) {
                 if (cache_expired(item)) {
                         cgit_fill_cache(item);
                         cache_unlock(item);
                 } else {
                         cache_cancel_lock(item);
                 }
         }
 }
 
 static void cgit_print_cache(struct cacheitem *item)
diff --git a/cgit.css b/cgit.css
index 97b4e27..3579598 100644
--- a/cgit.css
+++ b/cgit.css
@@ -1,78 +1,120 @@
 body {
         font-family: arial;
         font-size: normal;
         background: white;
         padding: 0em;
         margin: 0.5em;
 }
 
 
 h2 {
         font-size: normal;
         font-weight: bold;
         margin-bottom: 0.1em;
 }
 
 
 table.list {
         border: solid 1px black;
         border-collapse: collapse;
         border: solid 1px #aaa;
 }
 
 table.list th {
-        text-align: left;
         font-weight: bold;
         background: #ddd;
         border-bottom: solid 1px #aaa;
-        padding: 0.1em 0.5em 0.1em;
+        padding: 0.1em 0.5em 0.1em 0.5em;
         vertical-align: baseline;
 }
 table.list td {
         border: none;
-        padding: 0.1em 1em 0.1em 0.5em;
+        padding: 0.1em 0.5em 0.1em 0.5em;
         background: white;
 }
 
 img {
         border: none;
 }
 
 
 div#header {
         background-color: #ddd;
         padding: 0.25em 0.25em 0.25em 0.5em;
         font-size: 150%;
         font-weight: bold;
         border: solid 1px #aaa;
         vertical-align: middle;
 }
 
 div#header img#logo {
         float: right;
 }
 
 div#content {
         margin: 0.5em 0.5em;
 }
 
+div#blob {
+        border: solid 1px black;
+}
+
 div.error {
         color: red;
         font-weight: bold;
         margin: 1em 2em;
 }
 div.ls-dir a {
         font-weight: bold;
 }
 th.filesize, td.filesize {
         text-align: right;
 }
 th.filemode, td.filemode {
         text-align: center;
 }
 
 td.blob {
         white-space: pre;
         font-family: courier;
         font-size: 100%;
-}
\ No newline at end of file
+}
+
+table.log td {
+        white-space: nowrap;
+}
+
+table.commit-info {
+        border-collapse: collapse;
+        margin-top: 1em;
+        
+}
+table.commit-info th {
+        text-align: left;
+        font-weight: normal;
+        padding: 0.1em 1em 0.1em 0.1em;
+}
+table.commit-info td {
+        font-weight: normal;
+        padding: 0.1em 1em 0.1em 0.1em;
+}
+div.commit-subject {
+        font-weight: bold;
+        font-size: 110%;
+        margin: 1em 0em 1em;
+}
+div.commit-msg {
+        white-space: pre;
+        font-family: courier;
+        font-size: 100%;
+}
+.sha1 {
+        font-family: courier;
+        font-size: 90%;
+}
+.left {
+        text-align: left;
+}
+.right {
+        text-align: right;
+}
diff --git a/cgit.h b/cgit.h
index 268db53..a905e47 100644
--- a/cgit.h
+++ b/cgit.h
@@ -47,52 +47,53 @@ 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   cgit_query_ofs;
 
 extern int htmlfd;
 
 extern void cgit_global_config_cb(const char *name, const char *value);
 extern void cgit_repo_config_cb(const char *name, const char *value);
 extern void cgit_querystring_cb(const char *name, const char *value);
 
 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 struct commitinfo *cgit_parse_commit(struct commit *commit);
 
 extern void cache_prepare(struct cacheitem *item);
 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);
 
 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_print_tree(const char *sha1);
+extern void cgit_print_view(const char *hex);
+extern void cgit_print_tree(const char *hex);
+extern void cgit_print_commit(const char *hex);
 
 #endif /* CGIT_H */
diff --git a/parsing.c b/parsing.c
index 6cab0e9..be471b5 100644
--- a/parsing.c
+++ b/parsing.c
@@ -105,55 +105,56 @@ int cgit_parse_query(char *txt, configfn fn)
         return 0;
 }
 
 char *substr(const char *head, const char *tail)
 {
         char *buf;
 
         buf = xmalloc(tail - head + 1);
         strncpy(buf, head, tail - head);
         buf[tail - head] = '\0';
         return buf;
 }
 
 struct commitinfo *cgit_parse_commit(struct commit *commit)
 {
         struct commitinfo *ret;
         char *p = commit->buffer, *t = commit->buffer;
 
         ret = xmalloc(sizeof(*ret));
         ret->commit = commit;
 
         if (strncmp(p, "tree ", 5))
                 die("Bad commit: %s", sha1_to_hex(commit->object.sha1));
         else
                 p += 46; // "tree " + hex[40] + "\n"
 
         while (!strncmp(p, "parent ", 7))
                 p += 48; // "parent " + hex[40] + "\n"
 
         if (!strncmp(p, "author ", 7)) {
                 p += 7;
                 t = strchr(p, '<') - 1;
                 ret->author = substr(p, t);
                 p = strchr(p, '\n') + 1;
         }
 
         if (!strncmp(p, "committer ", 9)) {
                 p += 9;
                 t = strchr(p, '<') - 1;
                 ret->committer = substr(p, t);
                 p = strchr(p, '\n') + 1;
         }
 
         while (*p == '\n')
                 p = strchr(p, '\n') + 1;
 
         t = strchr(p, '\n');
         ret->subject = substr(p, t);
+        p = t + 1;
 
         while (*p == '\n')
                 p = strchr(p, '\n') + 1;
         ret->msg = p;
 
         return ret;
 }
diff --git a/ui-commit.c b/ui-commit.c
new file mode 100644
index 0000000..1c0e7e5
--- a/dev/null
+++ b/ui-commit.c
@@ -0,0 +1,80 @@
+#include "cgit.h"
+
+void cgit_print_date(unsigned long secs)
+{
+        char buf[32];
+        struct tm *time;
+
+        time = gmtime(&secs);
+        strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", time);
+        html_txt(buf);
+        
+}
+
+void cgit_print_commit(const char *hex)
+{
+        struct commit *commit;
+        struct commitinfo *info;
+        struct commit_list *p;
+        unsigned long size;
+        char type[20];
+        char *buf;
+
+        unsigned char sha1[20];
+
+        if (get_sha1(hex, sha1)) {
+                cgit_print_error(fmt("Bad object id: %s", hex));
+                return;
+        }
+
+        buf = read_sha1_file(sha1, type, &size);
+        if (!buf) {
+                cgit_print_error(fmt("Bad object reference: %s", hex));
+                return;
+        }
+
+        commit = lookup_commit(sha1);
+        if (!commit) {
+                cgit_print_error(fmt("Bad commit reference: %s", hex));
+                return;
+        }
+
+        commit->buffer = buf;
+        if (parse_commit_buffer(commit, buf, size)) {
+                cgit_print_error(fmt("Malformed commit buffer: %s", hex));
+                return;
+        }
+
+        info = cgit_parse_commit(commit);
+
+        html("<table class='commit-info'>\n");
+        html("<tr><th>author</th><td colspan='2'>");
+        html_txt(info->author);
+        html("</td></tr>\n");
+        html("<tr><th>committer</th><td>");
+        html_txt(info->committer);
+        html("</td><td class='right'>");
+        cgit_print_date(commit->date);
+        html("</td></tr>\n");
+        html("<tr><th>tree</th><td colspan='2' class='sha1'><a href='");
+        html_attr(cgit_pageurl(cgit_query_repo, "tree", fmt("id=%s", sha1_to_hex(commit->tree->object.sha1))));
+        htmlf("'>%s</a></td></tr>\n", sha1_to_hex(commit->tree->object.sha1));
+        
+        for (p = commit->parents; p ; p = p->next) {
+                html("<tr><th>parent</th><td colspan='2' class='sha1'><a href='");
+                html_attr(cgit_pageurl(cgit_query_repo, "commit", fmt("id=%s", sha1_to_hex(p->item->object.sha1))));
+                htmlf("'>%s</a></td></tr>\n", 
+                      sha1_to_hex(p->item->object.sha1));
+        }
+        html("</table>\n");
+        html("<div class='commit-subject'>");
+        html_txt(info->subject);
+        html("</div>");
+        html("<div class='commit-msg'>");
+        html_txt(info->msg);
+        html("</div>");
+        free(info->author);
+        free(info->committer);
+        free(info->subject);
+        free(info);
+}
diff --git a/ui-log.c b/ui-log.c
index 31331ef..c52af79 100644
--- a/ui-log.c
+++ b/ui-log.c
@@ -1,97 +1,92 @@
 /* ui-log.c: functions for log output
  *
  * Copyright (C) 2006 Lars Hjemli
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
 #include "cgit.h"
 
 void print_commit(struct commit *commit)
 {
         char buf[32];
         struct commitinfo *info;
         struct tm *time;
 
         info = cgit_parse_commit(commit);
         time = gmtime(&commit->date);
         html("<tr><td>");
         strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", time);
         html_txt(buf);
         html("</td><td>");
         char *qry = fmt("id=%s", sha1_to_hex(commit->object.sha1));
-        char *url = cgit_pageurl(cgit_query_repo, "view", qry);
+        char *url = cgit_pageurl(cgit_query_repo, "commit", qry);
         html_link_open(url, NULL, NULL);
         html_txt(info->subject);
         html_link_close();
         html("</td><td>");
         html_txt(info->author);
-        html("</td><td><a href='");
-        html_attr(cgit_pageurl(cgit_query_repo, "tree", 
-                               fmt("id=%s", 
-                                   sha1_to_hex(commit->tree->object.sha1))));
-        html("'>tree</a>");
         html("</td></tr>\n");
         free(info->author);
         free(info->committer);
         free(info->subject);
         free(info);
 }
 
 
 void cgit_print_log(const char *tip, int ofs, int cnt)
 {
         struct rev_info rev;
         struct commit *commit;
         const char *argv[2] = {NULL, tip};
         int i;
         
         init_revisions(&rev, NULL);
         rev.abbrev = DEFAULT_ABBREV;
         rev.commit_format = CMIT_FMT_DEFAULT;
         rev.verbose_header = 1;
         rev.show_root_diff = 0;
         setup_revisions(2, argv, &rev, NULL);
         prepare_revision_walk(&rev);
 
         html("<h2>Log</h2>");
-        html("<table class='list'>");
-        html("<tr><th>Date</th><th>Message</th><th>Author</th><th>Link</th></tr>\n");
+        html("<table class='list log'>");
+        html("<tr><th class='left'>Date</th><th class='left'>Message</th><th class='left'>Author</th></tr>\n");
 
         if (ofs<0)
                 ofs = 0;
 
         for (i = 0; i < ofs && (commit = get_revision(&rev)) != NULL; i++) {
                 free(commit->buffer);
                 commit->buffer = NULL;
                 free_commit_list(commit->parents);
                 commit->parents = NULL;
         }
 
         for (i = 0; i < cnt && (commit = get_revision(&rev)) != NULL; i++) {
                 print_commit(commit);
                 free(commit->buffer);
                 commit->buffer = NULL;
                 free_commit_list(commit->parents);
                 commit->parents = NULL;
         }
         html("</table>\n");
 
         html("<div class='pager'>");
         if (ofs > 0) {
                 html("&nbsp;<a href='");
                 html(cgit_pageurl(cgit_query_repo, cgit_query_page,
                                   fmt("h=%s&ofs=%d", tip, ofs-cnt)));
                 html("'>[prev]</a>&nbsp;");
                }
 
         if ((commit = get_revision(&rev)) != NULL) {
                 html("&nbsp;<a href='");
                 html(cgit_pageurl(cgit_query_repo, "log",
                                   fmt("h=%s&ofs=%d", tip, ofs+cnt)));
                 html("'>[next]</a>&nbsp;");
         }
         html("</div>");
 }
 
diff --git a/ui-tree.c b/ui-tree.c
index 84930cb..c4d75ab 100644
--- a/ui-tree.c
+++ b/ui-tree.c
@@ -17,54 +17,54 @@ static int print_entry(const unsigned char *sha1, const char *base,
         char type[20];
         unsigned long size;
 
         if (sha1_object_info(sha1, type, &size)) {
                 cgit_print_error(fmt("Bad object name: %s", 
                                      sha1_to_hex(sha1)));
                 return 0;
         }
         name = xstrdup(pathname);
         html("<tr><td>");
         if (S_ISDIR(mode)) {
                 html("<div class='ls-dir'><a href='");
                 html_attr(cgit_pageurl(cgit_query_repo, "tree", 
                                        fmt("id=%s", sha1_to_hex(sha1))));
         } else {
                 html("<div class='ls-blob'><a href='");
                 html_attr(cgit_pageurl(cgit_query_repo, "view",
                                       fmt("id=%s", sha1_to_hex(sha1))));
         }
         html("'>");
         html_txt(name);
         if (S_ISDIR(mode))
                 html("/");
         html("</a></div></td>");
         htmlf("<td class='filesize'>%li</td>", size);
         htmlf("<td class='filemode'>%06o</td>", mode);
         html("</tr>\n");
         free(name);
         return 0;
 }
 
 void cgit_print_tree(const char *hex)
 {
         struct tree *tree;
         unsigned char sha1[20];
 
         if (get_sha1_hex(hex, sha1)) {
                 cgit_print_error(fmt("Invalid object id: %s", hex));
                 return;
         }
         tree = parse_tree_indirect(sha1);
         if (!tree) {
                 cgit_print_error(fmt("Not a tree object: %s", hex));
                 return;
         }
 
         html("<h2>Tree content</h2>\n");
         html("<table class='list'>\n");
-        html("<tr><th>Name</th>");
-        html("<th class='filesize'>Size</th>");
-        html("<th class='filemode'>Mode</th></tr>\n");
+        html("<tr><th class='left'>Name</th>");
+        html("<th class='right'>Size</th>");
+        html("<th class='right'>Mode</th></tr>\n");
         read_tree_recursive(tree, "", 0, 1, NULL, print_entry);
         html("</table>\n");
 }
diff --git a/ui-view.c b/ui-view.c
index 9d13be1..b75ce9a 100644
--- a/ui-view.c
+++ b/ui-view.c
@@ -1,42 +1,42 @@
 /* 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)
+void cgit_print_view(const 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, &size)){
                 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 content</h2>\n");
         html("<table class='list'>\n");
         htmlf("<tr><th>%s %s, %li bytes</th></tr>\n", type, hex, size);
         html("<tr><td class='blob'>\n");
         html_txt(buf);
         html("\n</td></tr>\n");
         html("</table>\n");
 }