X-Git-Url: https://git.distorted.org.uk/~mdw/stgit/blobdiff_plain/e58f264a3e59a0887c7aaa1e3227cff108ac840d..9ab06b9858bbb0196867506724a8d74c8f39e113:/stgit/commands/common.py

diff --git a/stgit/commands/common.py b/stgit/commands/common.py
index 4f53f91..bc8266e 100644
--- a/stgit/commands/common.py
+++ b/stgit/commands/common.py
@@ -53,11 +53,20 @@ def git_id(crt_series, rev):
     repository = libstack.Repository.default()
     return git_commit(rev, repository, crt_series.get_name()).sha1
 
+def get_public_ref(branch_name):
+    """Return the public ref of the branch."""
+    public_ref = config.get('branch.%s.public' % branch_name)
+    if not public_ref:
+        public_ref = 'refs/heads/%s.public' % branch_name
+    return public_ref
+
 def git_commit(name, repository, branch_name = None):
     """Return the a Commit object if 'name' is a patch name or Git commit.
     The patch names allowed are in the form '<branch>:<patch>' and can
     be followed by standard symbols used by git rev-parse. If <patch>
-    is '{base}', it represents the bottom of the stack.
+    is '{base}', it represents the bottom of the stack. If <patch> is
+    {public}, it represents the public branch corresponding to the stack as
+    described in the 'publish' command.
     """
     # Try a [branch:]patch name first
     branch, patch = parse_rev(name)
@@ -69,6 +78,11 @@ def git_commit(name, repository, branch_name = None):
         base_id = repository.get_stack(branch).base.sha1
         return repository.rev_parse(base_id +
                                     strip_prefix('{base}', patch))
+    elif patch.startswith('{public}'):
+        public_ref = get_public_ref(branch)
+        return repository.rev_parse(public_ref +
+                                    strip_prefix('{public}', patch),
+                                    discard_stderr = True)
 
     # Other combination of branch and patch
     try:
@@ -83,6 +97,15 @@ def git_commit(name, repository, branch_name = None):
     except libgit.RepositoryException:
         raise CmdException('%s: Unknown patch or revision name' % name)
 
+def color_diff_flags():
+    """Return the git flags for coloured diff output if the configuration and
+    stdout allows."""
+    stdout_is_tty = (sys.stdout.isatty() and 'true') or 'false'
+    if config.get_colorbool('color.diff', stdout_is_tty) == 'true':
+        return ['--color']
+    else:
+        return []
+
 def check_local_changes():
     if git.local_changes():
         raise CmdException('local changes in the tree. Use "refresh" or'
@@ -97,7 +120,7 @@ def check_head_top_equal(crt_series):
 def check_conflicts():
     if git.get_conflicts():
         raise CmdException('Unsolved conflicts. Please fix the conflicts'
-                           ' then use "resolve <files>" or revert the'
+                           ' then use "git add --update <files>" or revert the'
                            ' changes with "status --reset".')
 
 def print_crt_patch(crt_series, branch = None):