Re: [Kimchi-devel] [PATCHv6 1/2] utils: Add nfs prevalication

From: Royce Lv <lvroyce(a)linux.vnet.ibm.com&gt; Abstract a helper function to parse cmd result. Usage: (1)get cmd result with subprocess.call or subprocess.Popen (2) call pass_cmd_output to get formated outputs Example: blkid = subprocess.Popen(["cat", "/proc/mounts"], stdout=subprocess.PIPE, stderr=subprocess.PIPE) outs = blkid.communicate()[0] output_items= ['path', 'mnt_point', 'type', 'option'] utils.parse_cmd_output(outs, output_items) Sample output: [{'path': '/dev/sda8', 'type': 'ext4', 'option': 'rw,relatime,data=ordered', 'mnt_point': '/home'}, {'path': 'localhost:/home/royce/isorepo', 'type': 'nfs4', 'option': 'rw...addr=127.0.0.1', 'mnt_point': '/mnt'}] To prevent future mount of nfs path will hang, we will try nfs path with a quick mount, if this check fails, report warning to user. Signed-off-by: Royce Lv <lvroyce(a)linux.vnet.ibm.com&gt; --- src/kimchi/utils.py | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/src/kimchi/utils.py b/src/kimchi/utils.py index 331da91..5d6e8ea 100644 --- a/src/kimchi/utils.py +++ b/src/kimchi/utils.py @@ -154,3 +154,11 @@ def run_command(cmd, timeout=None): finally: if timer and not timeout_flag[0]: timer.cancel() + + +def parse_cmd_output(output, output_items): + res = [] + for line in output.split("\n"): + res.append(dict(zip(output_items, line.split()))) + + return res