diff options
Diffstat (limited to 'poky/bitbake/lib/bb/utils.py')
| -rw-r--r-- | poky/bitbake/lib/bb/utils.py | 38 |
1 files changed, 36 insertions, 2 deletions
diff --git a/poky/bitbake/lib/bb/utils.py b/poky/bitbake/lib/bb/utils.py index 2ff7e8222..73b6cb423 100644 --- a/poky/bitbake/lib/bb/utils.py +++ b/poky/bitbake/lib/bb/utils.py @@ -497,7 +497,11 @@ def lockfile(name, shared=False, retry=True, block=False): if statinfo.st_ino == statinfo2.st_ino: return lf lf.close() - except Exception: + except OSError as e: + if e.errno == errno.EACCES: + logger.error("Unable to acquire lock '%s', %s", + e.strerror, name) + sys.exit(1) try: lf.close() except Exception: @@ -906,6 +910,23 @@ def copyfile(src, dest, newmtime = None, sstat = None): newmtime = sstat[stat.ST_MTIME] return newmtime +def break_hardlinks(src, sstat = None): + """ + Ensures src is the only hardlink to this file. Other hardlinks, + if any, are not affected (other than in their st_nlink value, of + course). Returns true on success and false on failure. + + """ + try: + if not sstat: + sstat = os.lstat(src) + except Exception as e: + logger.warning("break_hardlinks: stat of %s failed (%s)" % (src, e)) + return False + if sstat[stat.ST_NLINK] == 1: + return True + return copyfile(src, src, sstat=sstat) + def which(path, item, direction = 0, history = False, executable=False): """ Locate `item` in the list of paths `path` (colon separated string like $PATH). @@ -1290,7 +1311,7 @@ def edit_metadata_file(meta_file, variables, varfunc): return updated -def edit_bblayers_conf(bblayers_conf, add, remove): +def edit_bblayers_conf(bblayers_conf, add, remove, edit_cb=None): """Edit bblayers.conf, adding and/or removing layers Parameters: bblayers_conf: path to bblayers.conf file to edit @@ -1298,6 +1319,8 @@ def edit_bblayers_conf(bblayers_conf, add, remove): list to add nothing remove: layer path (or list of layer paths) to remove; None or empty list to remove nothing + edit_cb: optional callback function that will be called after + processing adds/removes once per existing entry. Returns a tuple: notadded: list of layers specified to be added but weren't (because they were already in the list) @@ -1361,6 +1384,17 @@ def edit_bblayers_conf(bblayers_conf, add, remove): bblayers.append(addlayer) del addlayers[:] + if edit_cb: + newlist = [] + for layer in bblayers: + res = edit_cb(layer, canonicalise_path(layer)) + if res != layer: + newlist.append(res) + updated = True + else: + newlist.append(layer) + bblayers = newlist + if updated: if op == '+=' and not bblayers: bblayers = None |
