From 8e8251582e977d7c6ab525ac1b493fbbe3af38b2 Mon Sep 17 00:00:00 2001 From: Luca Ceresoli Date: Fri, 29 Sep 2017 10:39:24 +0200 Subject: externalsrc: fix ExpansionError if the source dir does not exist yet The externalsrc class code assumes that the source directory (EXTERNALSRC) exists before bitbake is called. Otherwise do_configure will fail obviously since externalsrc does not fetch anything. Commit 3ca6085729d9 ("externalsrc: Handle .git not being a directory") changed this behaviour. Now on a missing EXTERNALSRC directory we get a bb.data_smart.ExpansionError during _parsing_, way before do_configure can be run. This new behaviour creates two problems: * First, there error message is very cryptic (and it's hard to provide a better message since no task is ever run): ERROR: ExpansionError during parsing /<...>/<...>.bb Traceback (most recent call last): bb.data_smart.ExpansionError: Failure expanding variable do_compile[file-checksums], expression was ${@srctree_hash_files(d)} which triggered exception FileNotFoundError: [Errno 2] No such file or directory: '<...>' * Second, this prevents creating a class based on externalsrc that automatically fetches the code in EXTERNALSRC before do_compile runs. Fix both problems by simply calling git with '-C ${EXTERNALSRC}' instead of calling git inside the non-existing directory. This changes from a bb.data_smart.ExpansionError to a subprocess.CalledProcessError, which is in line with what's actually going on: git is telling us it can't find the git dir. Also remove a comment that does not apply anymore. Signed-off-by: Luca Ceresoli Cc: Joshua Watt Signed-off-by: Ross Burton --- meta/classes/externalsrc.bbclass | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'meta/classes') diff --git a/meta/classes/externalsrc.bbclass b/meta/classes/externalsrc.bbclass index 08e6e47901..65dd13ddc1 100644 --- a/meta/classes/externalsrc.bbclass +++ b/meta/classes/externalsrc.bbclass @@ -188,10 +188,8 @@ def srctree_hash_files(d, srcdir=None): git_dir = None try: - # git rev-parse returns the path relative to the current working - # directory git_dir = os.path.join(s_dir, - subprocess.check_output(['git', 'rev-parse', '--git-dir'], cwd=s_dir).decode("utf-8").rstrip()) + subprocess.check_output(['git', '-C', s_dir, 'rev-parse', '--git-dir']).decode("utf-8").rstrip()) except subprocess.CalledProcessError: pass -- cgit 1.2.3-korg