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authorLars Hjemli <hjemli@gmail.com>2008-08-06 01:20:24 +0200
committerLars Hjemli <hjemli@gmail.com>2008-08-06 11:21:09 +0200
commit02a545e63454530c1639014d3239c14ced2022c6 (patch)
treeda4c89a94b117d936f2eeb486c9dedf192e6746e
parent0f0ab148c6d444316af10e6b4c7a60630fed45d3 (diff)
Add support for cloning over http
This patch implements basic support for cloning over http, based on the work on git-http-backend by Shawn O. Pearce. Signed-off-by: Lars Hjemli <hjemli@gmail.com>
-rw-r--r--Makefile1
-rw-r--r--cmd.c19
-rw-r--r--html.c7
-rw-r--r--html.h1
-rw-r--r--ui-clone.c104
-rw-r--r--ui-clone.h8
6 files changed, 140 insertions, 0 deletions
diff --git a/Makefile b/Makefile
index e1436a3..78aad10 100644
--- a/Makefile
+++ b/Makefile
@@ -56,6 +56,7 @@ OBJECTS += html.o
OBJECTS += parsing.o
OBJECTS += shared.o
OBJECTS += ui-blob.o
+OBJECTS += ui-clone.o
OBJECTS += ui-commit.o
OBJECTS += ui-diff.o
OBJECTS += ui-log.o
diff --git a/cmd.c b/cmd.c
index fe0ea8f..03e165c 100644
--- a/cmd.c
+++ b/cmd.c
@@ -11,6 +11,7 @@
#include "cache.h"
#include "ui-shared.h"
#include "ui-blob.h"
+#include "ui-clone.h"
#include "ui-commit.h"
#include "ui-diff.h"
#include "ui-log.h"
@@ -22,6 +23,11 @@
#include "ui-tag.h"
#include "ui-tree.h"
+static void HEAD_fn(struct cgit_context *ctx)
+{
+ cgit_clone_head(ctx);
+}
+
static void about_fn(struct cgit_context *ctx)
{
if (ctx->repo)
@@ -45,6 +51,11 @@ static void diff_fn(struct cgit_context *ctx)
cgit_print_diff(ctx->qry.sha1, ctx->qry.sha2, ctx->qry.path);
}
+static void info_fn(struct cgit_context *ctx)
+{
+ cgit_clone_info(ctx);
+}
+
static void log_fn(struct cgit_context *ctx)
{
cgit_print_log(ctx->qry.sha1, ctx->qry.ofs, ctx->cfg.max_commit_count,
@@ -59,6 +70,11 @@ static void ls_cache_fn(struct cgit_context *ctx)
cache_ls(ctx->cfg.cache_root);
}
+static void objects_fn(struct cgit_context *ctx)
+{
+ cgit_clone_objects(ctx);
+}
+
static void repolist_fn(struct cgit_context *ctx)
{
cgit_print_repolist();
@@ -102,12 +118,15 @@ static void tree_fn(struct cgit_context *ctx)
struct cgit_cmd *cgit_get_cmd(struct cgit_context *ctx)
{
static struct cgit_cmd cmds[] = {
+ def_cmd(HEAD, 1, 0),
def_cmd(about, 0, 1),
def_cmd(blob, 1, 0),
def_cmd(commit, 1, 1),
def_cmd(diff, 1, 1),
+ def_cmd(info, 1, 0),
def_cmd(log, 1, 1),
def_cmd(ls_cache, 0, 0),
+ def_cmd(objects, 1, 0),
def_cmd(patch, 1, 0),
def_cmd(refs, 1, 1),
def_cmd(repolist, 0, 0),
diff --git a/html.c b/html.c
index bddb04d..1237076 100644
--- a/html.c
+++ b/html.c
@@ -51,6 +51,13 @@ void htmlf(const char *format, ...)
html(buf);
}
+void html_status(int code, int more_headers)
+{
+ htmlf("Status: %d\n", code);
+ if (!more_headers)
+ html("\n");
+}
+
void html_txt(char *txt)
{
char *t = txt;
diff --git a/html.h b/html.h
index e6fdc54..2bde28d 100644
--- a/html.h
+++ b/html.h
@@ -5,6 +5,7 @@ extern int htmlfd;
extern void html(const char *txt);
extern void htmlf(const char *format,...);
+extern void html_status(int code, int more_headers);
extern void html_txt(char *txt);
extern void html_ntxt(int len, char *txt);
extern void html_attr(char *txt);
diff --git a/ui-clone.c b/ui-clone.c
new file mode 100644
index 0000000..3a037ad
--- /dev/null
+++ b/ui-clone.c
@@ -0,0 +1,104 @@
+/* ui-clone.c: functions for http cloning, based on
+ * git's http-backend.c by Shawn O. Pearce
+ *
+ * Copyright (C) 2008 Lars Hjemli
+ *
+ * Licensed under GNU General Public License v2
+ * (see COPYING for full license text)
+ */
+
+#include "cgit.h"
+#include "html.h"
+#include "ui-shared.h"
+
+static int print_ref_info(const char *refname, const unsigned char *sha1,
+ int flags, void *cb_data)
+{
+ struct object *obj;
+
+ if (!(obj = parse_object(sha1)))
+ return 0;
+
+ if (!strcmp(refname, "HEAD") || !prefixcmp(refname, "refs/heads/"))
+ htmlf("%s\t%s\n", sha1_to_hex(sha1), refname);
+ else if (!prefixcmp(refname, "refs/tags") && obj->type == OBJ_TAG) {
+ if (!(obj = deref_tag(obj, refname, 0)))
+ return 0;
+ htmlf("%s\t%s\n", sha1_to_hex(sha1), refname);
+ htmlf("%s\t%s^{}\n", sha1_to_hex(obj->sha1), refname);
+ }
+ return 0;
+}
+
+static void print_pack_info(struct cgit_context *ctx)
+{
+ struct packed_git *pack;
+ int ofs;
+
+ ctx->page.mimetype = "text/plain";
+ ctx->page.filename = "objects/info/packs";
+ cgit_print_http_headers(ctx);
+ ofs = strlen(ctx->repo->path) + strlen("/objects/pack/");
+ prepare_packed_git();
+ for (pack = packed_git; pack; pack = pack->next)
+ if (pack->pack_local)
+ htmlf("P %s\n", pack->pack_name + ofs);
+}
+
+static void send_file(struct cgit_context *ctx, char *path)
+{
+ struct stat st;
+ int err;
+
+ if (stat(path, &st)) {
+ switch (errno) {
+ case ENOENT:
+ err = 404;
+ break;
+ case EACCES:
+ err = 403;
+ break;
+ default:
+ err = 400;
+ }
+ html_status(err, 0);
+ return;
+ }
+ ctx->page.mimetype = "application/octet-stream";
+ ctx->page.filename = path;
+ if (prefixcmp(ctx->repo->path, path))
+ ctx->page.filename += strlen(ctx->repo->path) + 1;
+ cgit_print_http_headers(ctx);
+ html_include(path);
+}
+
+void cgit_clone_info(struct cgit_context *ctx)
+{
+ if (!ctx->qry.path || strcmp(ctx->qry.path, "refs"))
+ return;
+
+ ctx->page.mimetype = "text/plain";
+ ctx->page.filename = "info/refs";
+ cgit_print_http_headers(ctx);
+ for_each_ref(print_ref_info, ctx);
+}
+
+void cgit_clone_objects(struct cgit_context *ctx)
+{
+ if (!ctx->qry.path) {
+ html_status(400, 0);
+ return;
+ }
+
+ if (!strcmp(ctx->qry.path, "info/packs")) {
+ print_pack_info(ctx);
+ return;
+ }
+
+ send_file(ctx, git_path("objects/%s", ctx->qry.path));
+}
+
+void cgit_clone_head(struct cgit_context *ctx)
+{
+ send_file(ctx, git_path("%s", "HEAD"));
+}
diff --git a/ui-clone.h b/ui-clone.h
new file mode 100644
index 0000000..89cd4f1
--- /dev/null
+++ b/ui-clone.h
@@ -0,0 +1,8 @@
+#ifndef UI_CLONE_H
+#define UI_CLONE_H
+
+void cgit_clone_info(struct cgit_context *ctx);
+void cgit_clone_objects(struct cgit_context *ctx);
+void cgit_clone_head(struct cgit_context *ctx);
+
+#endif /* UI_CLONE_H */