| """ |
| This module defines the GitKernel class |
| |
| @author: Ryan Harper (ryanh@us.ibm.com) |
| @copyright: IBM 2007 |
| """ |
| |
| import os, logging |
| import git, source_kernel |
| |
| |
| class GitKernel(git.InstallableGitRepo): |
| """ |
| This class represents an installable git kernel repo. |
| |
| It is used to pull down a local copy of a git repo, check if the local repo |
| is up-to-date, if not update and then build the kernel from the git repo. |
| """ |
| def __init__(self, repodir, giturl, weburl=None): |
| super(GitKernel, self).__init__(repodir, giturl, weburl) |
| self._patches = [] |
| self._config = None |
| self._build = None |
| self._branch = None |
| self._revision = None |
| |
| |
| def configure(self, config): |
| self._config = config |
| |
| |
| def patch(self, patch): |
| self._patches.append(patch) |
| |
| |
| def checkout(self, revision, local=None): |
| """ |
| Checkout the commit id, branch, or tag. |
| |
| @param revision: Name of the git remote branch, revision or tag |
| @param local: Name of the local branch, implies -b |
| """ |
| logging.info('Checking out %s', revision) |
| super(GitKernel, self).checkout(revision) |
| self._revision = super(GitKernel, self).get_revision() |
| self._branch = super(GitKernel, self).get_branch() |
| logging.info('Checked out %s on branch %s', self._revision, |
| self._branch) |
| |
| |
| def show_branch(self): |
| """ |
| Print the current local branch name. |
| """ |
| self._branch = super(GitKernel, self).get_branch() |
| logging.info(self._branch) |
| |
| |
| def show_branches(self, all=True): |
| """ |
| Print the local and remote branches. |
| |
| @param all: Whether to show all branches (True) or only local branches |
| (False). |
| """ |
| self._branch = super(GitKernel, self).get_branch() |
| logging.info(super(GitKernel, self).get_branch(all=all)) |
| |
| |
| def show_revision(self): |
| """ |
| Show the current git revision. |
| """ |
| self._revision = super(GitKernel, self).get_revision() |
| logging.info(self._revision) |
| |
| |
| def install(self, host, build=True, builddir=None, revision=None): |
| """ |
| Install the git tree in a host. |
| |
| @param host: Host object |
| @param build: Whether to build the source tree |
| @param builddir: Specify a build dir. If no build dir is specified, |
| the job temporary directory will be used, so the build won't |
| be persistent. |
| @param revision: Desired commit hash. If ommited, will build from HEAD |
| of the branch. |
| """ |
| if revision: |
| self.checkout(revision) |
| self._revision = super(GitKernel, self).get_revision() |
| logging.info('Checked out revision: %s', self._revision) |
| |
| if not builddir: |
| self._build = os.path.join(host.get_tmp_dir(), "build") |
| logging.warning('Builddir %s is not persistent (it will be erased ' |
| 'in future jobs)', self._build) |
| else: |
| self._build = builddir |
| |
| # push source to host for install |
| logging.info('Pushing %s to host', self.source_material) |
| host.send_file(self.source_material, self._build) |
| remote_source_material= os.path.join(self._build, |
| os.path.basename(self.source_material)) |
| |
| # use a source_kernel to configure, patch, build and install. |
| sk = source_kernel.SourceKernel(remote_source_material) |
| |
| if build: |
| # apply patches |
| for p in self._patches: |
| sk.patch(p) |
| |
| # configure |
| sk.configure(self._config) |
| |
| # build |
| sk.build(host) |
| |
| # install |
| sk.install(host) |
