When installing a package, write an mtree of the package files into the local database. This will be useful for doing validation of all files on a system.
Signed-off-by: Allan McRae <al...@archlinux.org> --- Query: should we keep the info on .INSTALL and .CHANGELOG files? Changing a .INSTALL file would be an interesting tactic, but if someone is doing that then they can already adjust the mtree file... Also, from http://goo.gl/Uq6X5 it appears that this could be made more efficient by reusing the file descriptor, but I could not get that working after many, many, many attempts. lib/libalpm/add.c | 68 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 68 insertions(+), 0 deletions(-) diff --git a/lib/libalpm/add.c b/lib/libalpm/add.c index b007766..31313a7 100644 --- a/lib/libalpm/add.c +++ b/lib/libalpm/add.c @@ -449,6 +449,68 @@ needbackup_cleanup: return errors; } +static int write_package_mtree(alpm_handle_t *handle, alpm_pkg_t *pkg, const char *file) +{ + char *path; + struct archive *archive, *mtree; + struct archive_entry *entry; + struct stat buf; + char buffer[ALPM_BUFFER_SIZE]; + int fd, ret = 0, read = 0; + + _alpm_log(handle, ALPM_LOG_DEBUG, "creating package mtree\n"); + + fd = _alpm_open_archive(handle, file, &buf, + &archive, ALPM_ERR_PKG_OPEN); + if(fd < 0) { + ret = ALPM_ERR_PKG_OPEN; + goto error; + } + + if((mtree = archive_write_new()) == NULL) { + ret = ALPM_ERR_LIBARCHIVE; + archive_read_finish(archive); + goto error; + } + + archive_write_set_format_mtree(mtree); + archive_write_set_compression_gzip(mtree); + + /* output the type, uid, gid, mode, size, time, md5 and link fields */ + archive_write_set_options(mtree, "use-set,!device,!flags,!gname,!nlink,!uname,md5"); + + path = _alpm_local_db_pkgpath(handle->db_local, pkg, "files.mtree"); + + if(archive_write_open_filename(mtree, path) != ARCHIVE_OK) { + _alpm_log(handle, ALPM_LOG_ERROR, _("could not open file %s: %s\n"), + path, archive_error_string(archive)); + ret = ALPM_ERR_DB_WRITE; + goto cleanup; + } + + while(archive_read_next_header(archive, &entry) == ARCHIVE_OK) { + const char *entryname = archive_entry_pathname(entry); + if(*entryname != '.') { + archive_write_header(mtree, entry); + while ((read = archive_read_data(archive, &buffer, ALPM_BUFFER_SIZE)) > 0) { + archive_write_data(mtree, buffer, read); + } + } + } + +cleanup: + archive_read_finish(archive); + archive_write_finish(mtree); + free(path); + + if(ret == 0) { + return 0; + } + +error: + RET_ERR(handle, ret, -1); +} + static int commit_single_pkg(alpm_handle_t *handle, alpm_pkg_t *newpkg, size_t pkg_current, size_t pkg_count) { @@ -589,6 +651,12 @@ static int commit_single_pkg(alpm_handle_t *handle, alpm_pkg_t *newpkg, archive_read_finish(archive); CLOSE(fd); + if(write_package_mtree(handle, newpkg, pkgfile) == -1) + { + _alpm_log(handle, ALPM_LOG_WARNING, + _("could not create mtree file (%s)\n"), alpm_strerror(handle->pm_errno)); + } + /* restore the old cwd if we have it */ if(cwdfd >= 0) { if(fchdir(cwdfd) != 0) { -- 1.7.9.1
