diff options
Diffstat (limited to 'mkfs/main.c')
| -rw-r--r-- | mkfs/main.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/mkfs/main.c b/mkfs/main.c index 6dda9e3..5c41fc0 100644 --- a/mkfs/main.c +++ b/mkfs/main.c @@ -198,6 +198,7 @@ static int mkfs_parse_options_cfg(int argc, char *argv[]) erofs_err("invalid UNIX timestamp %s", optarg); return -EINVAL; } + cfg.c_timeinherit = TIMESTAMP_FIXED; break; case 2: opt = erofs_parse_exclude_path(optarg, false); @@ -381,6 +382,33 @@ static void erofs_mkfs_generate_uuid(void) erofs_info("filesystem UUID: %s", uuid_str); } +/* https://reproducible-builds.org/specs/source-date-epoch/ for more details */ +int parse_source_date_epoch(void) +{ + char *source_date_epoch; + unsigned long long epoch = -1ULL; + char *endptr; + + source_date_epoch = getenv("SOURCE_DATE_EPOCH"); + if (!source_date_epoch) + return 0; + + epoch = strtoull(source_date_epoch, &endptr, 10); + if (epoch == -1ULL || *endptr != '\0') { + erofs_err("Environment variable $SOURCE_DATE_EPOCH %s is invalid", + source_date_epoch); + return -EINVAL; + } + + if (cfg.c_force_inodeversion != FORCE_INODE_EXTENDED) + erofs_info("SOURCE_DATE_EPOCH is set, forcely generate extended inodes instead"); + + cfg.c_force_inodeversion = FORCE_INODE_EXTENDED; + cfg.c_unix_timestamp = epoch; + cfg.c_timeinherit = TIMESTAMP_CLAMPING; + return 0; +} + int main(int argc, char **argv) { int err = 0; @@ -405,6 +433,12 @@ int main(int argc, char **argv) return 1; } + err = parse_source_date_epoch(); + if (err) { + usage(); + return 1; + } + err = lstat64(cfg.c_src_path, &st); if (err) return 1; |