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-rw-r--r--ui-snapshot.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/ui-snapshot.c b/ui-snapshot.c
index 4136b3e..1b25dca 100644
--- a/ui-snapshot.c
+++ b/ui-snapshot.c
@@ -1,138 +1,144 @@
/* ui-snapshot.c: generate snapshot of a commit
*
* Copyright (C) 2006 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 write_compressed_tar_archive(struct archiver_args *args,const char *filter)
{
int rv;
struct cgit_filter f;
f.cmd = xstrdup(filter);
f.argv = malloc(2 * sizeof(char *));
f.argv[0] = f.cmd;
f.argv[1] = NULL;
cgit_open_filter(&f);
rv = write_tar_archive(args);
cgit_close_filter(&f);
return rv;
}
static int write_tar_gzip_archive(struct archiver_args *args)
{
return write_compressed_tar_archive(args,"gzip");
}
static int write_tar_bzip2_archive(struct archiver_args *args)
{
return write_compressed_tar_archive(args,"bzip2");
}
+static int write_tar_xz_archive(struct archiver_args *args)
+{
+ return write_compressed_tar_archive(args,"xz");
+}
+
const struct cgit_snapshot_format cgit_snapshot_formats[] = {
- { ".zip", "application/x-zip", write_zip_archive, 0x1 },
- { ".tar.gz", "application/x-gzip", write_tar_gzip_archive, 0x2 },
- { ".tar.bz2", "application/x-bzip2", write_tar_bzip2_archive, 0x4 },
- { ".tar", "application/x-tar", write_tar_archive, 0x8 },
+ { ".zip", "application/x-zip", write_zip_archive, 0x01 },
+ { ".tar.gz", "application/x-gzip", write_tar_gzip_archive, 0x02 },
+ { ".tar.bz2", "application/x-bzip2", write_tar_bzip2_archive, 0x04 },
+ { ".tar", "application/x-tar", write_tar_archive, 0x08 },
+ { ".tar.xz", "application/x-xz", write_tar_xz_archive, 0x10 },
{}
};
static const struct cgit_snapshot_format *get_format(const char *filename)
{
const struct cgit_snapshot_format *fmt;
int fl, sl;
fl = strlen(filename);
for(fmt = cgit_snapshot_formats; fmt->suffix; fmt++) {
sl = strlen(fmt->suffix);
if (sl >= fl)
continue;
if (!strcmp(fmt->suffix, filename + fl - sl))
return fmt;
}
return NULL;
}
static int make_snapshot(const struct cgit_snapshot_format *format,
const char *hex, const char *prefix,
const char *filename)
{
struct archiver_args args;
struct commit *commit;
unsigned char sha1[20];
if(get_sha1(hex, sha1)) {
cgit_print_error(fmt("Bad object id: %s", hex));
return 1;
}
commit = lookup_commit_reference(sha1);
if(!commit) {
cgit_print_error(fmt("Not a commit reference: %s", hex));
return 1;
}
memset(&args, 0, sizeof(args));
if (prefix) {
args.base = fmt("%s/", prefix);
args.baselen = strlen(prefix) + 1;
} else {
args.base = "";
args.baselen = 0;
}
args.tree = commit->tree;
args.time = commit->date;
ctx.page.mimetype = xstrdup(format->mimetype);
ctx.page.filename = xstrdup(filename);
cgit_print_http_headers(&ctx);
format->write_func(&args);
return 0;
}
/* Try to guess the requested revision from the requested snapshot name.
* First the format extension is stripped, e.g. "cgit-0.7.2.tar.gz" become
* "cgit-0.7.2". If this is a valid commit object name we've got a winner.
* Otherwise, if the snapshot name has a prefix matching the result from
* repo_basename(), we strip the basename and any following '-' and '_'
* characters ("cgit-0.7.2" -> "0.7.2") and check the resulting name once
* more. If this still isn't a valid commit object name, we check if pre-
* pending a 'v' to the remaining snapshot name ("0.7.2" -> "v0.7.2") gives
* us something valid.
*/
static const char *get_ref_from_filename(const char *url, const char *filename,
const struct cgit_snapshot_format *format)
{
const char *reponame;
unsigned char sha1[20];
char *snapshot;
snapshot = xstrdup(filename);
snapshot[strlen(snapshot) - strlen(format->suffix)] = '\0';
fprintf(stderr, "snapshot=%s\n", snapshot);
if (get_sha1(snapshot, sha1) == 0)
return snapshot;
reponame = cgit_repobasename(url);
fprintf(stderr, "reponame=%s\n", reponame);
if (prefixcmp(snapshot, reponame) == 0) {
snapshot += strlen(reponame);
while (snapshot && (*snapshot == '-' || *snapshot == '_'))
snapshot++;
}
if (get_sha1(snapshot, sha1) == 0)
return snapshot;
snapshot = fmt("v%s", snapshot);
if (get_sha1(snapshot, sha1) == 0)
return snapshot;
return NULL;
}
void show_error(char *msg)