Copy step improved for focker_dir

Fockerfile

@@ -6,3 +6,6 @@ steps:
       pkg -y install -y py37-pip
   - run: |
       pkg install -y py37-yaml
+  - copy:
+    - [ '/tmp/x', '/etc/x' ]
+    - [ 'focker-compose.yml', '/etc/focker-compose.yml' ]

image.py

@@ -18,7 +18,7 @@ def process_steps(steps, name):
         process_step(steps, name)
 
 
-def build(spec):
+def build(spec, args):
     if 'base' not in spec:
         raise ValueError('Missing base in specification')
 
@@ -37,7 +37,7 @@ def build(spec):
 
     for st in steps:
         st = create_step(st)
-        st_sha256 = st.hash(base_sha256)
+        st_sha256 = st.hash(base_sha256, args=args)
         if zfs_exists_snapshot_sha256(st_sha256):
             base = zfs_snapshot_by_sha256(st_sha256)
             base_sha256 = st_sha256
@@ -47,7 +47,7 @@ def build(spec):
             name = root + '/' + st_sha256[:pre]
             if not zfs_exists(name):
                 break
-        snap_name = new_snapshot(base, lambda: st.execute(zfs_mountpoint(name)), name)
+        snap_name = new_snapshot(base, lambda: st.execute(zfs_mountpoint(name), args=args), name)
         feed = {
             'focker:sha256': st_sha256
         }
@@ -60,6 +60,7 @@ def build(spec):
 
 
 def command_image_build(args):
+    # os.chdir(args.focker_dir)
     fname = os.path.join(args.focker_dir, 'Fockerfile')
     print('fname:', fname)
     if not os.path.exists(fname):
@@ -67,9 +68,10 @@ def command_image_build(args):
     with open(fname, 'r') as f:
         spec = yaml.safe_load(f)
     print('spec:', spec)
-    image, image_sha256 = build(spec)
+    image, image_sha256 = build(spec, args)
     zfs_untag(args.tag)
     zfs_tag(image.split('@')[0], args.tag)
 
+
 def command_image_untag(args):
     zfs_untag(args.tags)

steps.py

@@ -2,6 +2,7 @@ import hashlib
 import json
 from .jail import jail_run
 import shutil
+import os
 
 
 def filehash(fname):
@@ -23,13 +24,13 @@ class RunStep(object):
             raise ValueError('Run spec must be a list or a string')
         self.spec = spec
 
-    def hash(self, base):
+    def hash(self, base, **kwargs):
         res = hashlib.sha256(
             json.dumps(( base, self.spec ))
             .encode('utf-8')).hexdigest()
         return res
 
-    def execute(self, path):
+    def execute(self, path, **kwargs):
         spec = self.spec
         if isinstance(spec, list):
             spec = ' && ' .join(self.spec)
@@ -42,24 +43,28 @@ class CopyStep(object):
             raise ValueError('CopyStep spec should be a list')
         self.spec = spec
 
-    def hash(self, base):
+    def hash(self, base, args, **kwargs):
         if len(self.spec) == 0:
             fh = []
         elif isinstance(self.spec[0], list):
-            fh = list(map(lambda a: filehash(a[0]), self.spec))
+            fh = list(map(lambda a: filehash(os.path.join(args.focker_dir, a[0])), self.spec))
         else:
-            fh = [ filehash(self.spec[0]) ]
+            fh = [ filehash(os.path.join(args.focker_dir, self.spec[0])) ]
         res = hashlib.sha256(
             json.dumps(( base, fh, self.spec ))
             .encode('utf-8')).hexdigest()
         return res
 
-    def execute(self, path):
+    def execute(self, path, **kwargs):
         lst = [ self.spec ] \
             if not isinstance(self.spec[0], list) \
             else self.spec
         for a in lst:
-            shutil.copyfile(a[0], os.path.join(path, a[1]))
+            source, target = a
+            if target.startswith('/'):
+                target = target[1:]
+            shutil.copyfile(os.path.join(kwargs['args'].focker_dir, source),
+                os.path.join(path, target))
 
 
 def create_step(spec):