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authorRoss Burton <ross.burton@intel.com>2017-03-30 14:34:17 +0100
committerRichard Purdie <richard.purdie@linuxfoundation.org>2017-03-31 10:08:36 +0100
commit8ce18c5c4402243dc2ce7e6648e0d343acef46ef (patch)
tree3a2189648891a47ffa793ddef7887672322dc181 /bitbake/lib
parentf46846dc118a3132eee5aeddb43570b8343afc0a (diff)
downloadpoky-8ce18c5c4402243dc2ce7e6648e0d343acef46ef.tar.gz
bitbake: bb/utils: extend which() so it can look for just executables
Normally bb.utils.which() is used by the unpack code to find a file in a variety of places, but it is useful as a slightly more powerful version of os.which(). Support this by allowing it to only return matches which are executable files, instead of just the first filename that matches. (Bitbake rev: c0b94f02f0cba7a424aaa16cf98c0f7a3f62b889) Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'bitbake/lib')
-rw-r--r--bitbake/lib/bb/utils.py15
1 files changed, 12 insertions, 3 deletions
diff --git a/bitbake/lib/bb/utils.py b/bitbake/lib/bb/utils.py
index d6bcfa37e8..077fddc0ee 100644
--- a/bitbake/lib/bb/utils.py
+++ b/bitbake/lib/bb/utils.py
@@ -899,11 +899,20 @@ def copyfile(src, dest, newmtime = None, sstat = None):
899 newmtime = sstat[stat.ST_MTIME] 899 newmtime = sstat[stat.ST_MTIME]
900 return newmtime 900 return newmtime
901 901
902def which(path, item, direction = 0, history = False): 902def which(path, item, direction = 0, history = False, executable=False):
903 """ 903 """
904 Locate a file in a PATH 904 Locate `item` in the list of paths `path` (colon separated string like $PATH).
905 If `direction` is non-zero then the list is reversed.
906 If `history` is True then the list of candidates also returned as result,history.
907 If `executable` is True then the candidate has to be an executable file,
908 otherwise the candidate simply has to exist.
905 """ 909 """
906 910
911 if executable:
912 is_candidate = lambda p: os.path.isfile(p) and os.access(p, os.X_OK)
913 else:
914 is_candidate = lambda p: os.path.exists(p)
915
907 hist = [] 916 hist = []
908 paths = (path or "").split(':') 917 paths = (path or "").split(':')
909 if direction != 0: 918 if direction != 0:
@@ -912,7 +921,7 @@ def which(path, item, direction = 0, history = False):
912 for p in paths: 921 for p in paths:
913 next = os.path.join(p, item) 922 next = os.path.join(p, item)
914 hist.append(next) 923 hist.append(next)
915 if os.path.exists(next): 924 if is_candidate(next):
916 if not os.path.isabs(next): 925 if not os.path.isabs(next):
917 next = os.path.abspath(next) 926 next = os.path.abspath(next)
918 if history: 927 if history: