From: Frank Hunleth Date: Mon, 24 Oct 2016 14:36:39 +0000 (-0400) Subject: size-stats: don't count hard links X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=2ec0a7d11ca6c5a6fa1fe142e291a8f308f9c91f;p=buildroot.git size-stats: don't count hard links This change adds inode tracking to the size-stats script so that hard links don't cause files to be double counted. This has a significant effect on the size computation for some packages. For example, git has around a dozen hard links to a large file. Before this change, git would weigh in at about 170 MB with the total filesystem size reported as 175 MB. The actual rootfs.ext2 size was around 16 MB. With the change, the git package registers at 10.5 MB with a total filesystem size of 15.8 MB. Signed-off-by: Frank Hunleth Acked-by: Thomas De Schampheleire Signed-off-by: Thomas Petazzoni --- diff --git a/support/scripts/size-stats b/support/scripts/size-stats index 0ddcc07902..af45000359 100755 --- a/support/scripts/size-stats +++ b/support/scripts/size-stats @@ -88,11 +88,20 @@ def build_package_dict(builddir): def build_package_size(filesdict, builddir): pkgsize = collections.defaultdict(int) + seeninodes = set() for root, _, files in os.walk(os.path.join(builddir, "target")): for f in files: fpath = os.path.join(root, f) if os.path.islink(fpath): continue + + st = os.stat(fpath) + if st.st_ino in seeninodes: + # hard link + continue + else: + seeninodes.add(st.st_ino) + frelpath = os.path.relpath(fpath, os.path.join(builddir, "target")) if not frelpath in filesdict: print("WARNING: %s is not part of any package" % frelpath) @@ -100,7 +109,7 @@ def build_package_size(filesdict, builddir): else: pkg = filesdict[frelpath][0] - pkgsize[pkg] += os.path.getsize(fpath) + pkgsize[pkg] += st.st_size return pkgsize