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| author | David Oberhollenzer <david.oberhollenzer@sigma-star.at> | 2019-08-02 11:41:36 +0200 |
|---|---|---|
| committer | David Oberhollenzer <david.oberhollenzer@sigma-star.at> | 2019-08-02 11:41:36 +0200 |
| commit | 402fc5a6000bf0ec12f05d4aa2b3e250ec85a60a (patch) | |
| tree | 7d9a1b7bc77cbd0211e3e4cb31c079778207453a /include/util.h | |
| parent | eddb62072f4d4d2402d520e5041d9677fa6efdff (diff) | |
Implement support for SOURCE_DATE_EPOCH environment variable
reproducible-builds.org suggests the use of an environment variable
as a source for time stamps:
https://reproducible-builds.org/specs/source-date-epoch/
This commit adds support for setting the default mtime from the variable,
if it is set and only defaulting to 0 if not. The timestamp given by the
command line switch takes precedence.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Diffstat (limited to 'include/util.h')
| -rw-r--r-- | include/util.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/util.h b/include/util.h index 9d5cc94..82e3177 100644 --- a/include/util.h +++ b/include/util.h @@ -83,4 +83,11 @@ int padd_file(int outfd, uint64_t size, size_t blocksize); uint32_t update_crc32(uint32_t crc, const void *data, size_t size); +/* + If the environment variable SOURCE_DATE_EPOCH is set to a parsable number + that fits into an unsigned 32 bit value, return its value. Otherwise, + default to 0. + */ +uint32_t get_source_date_epoch(void); + #endif /* UTIL_H */ |