Class: GitMaintain::Branch

Inherits:
Object
  • Object
show all
Defined in:
lib/branch.rb

Direct Known Subclasses

RDMACoreBranch

Constant Summary collapse

ACTION_LIST = 
[
    :cp, :steal, :list, :list_stable,
    :merge, :push, :monitor,
    :push_stable, :monitor_stable,
    :release, :reset, :create, :delete
]
NO_FETCH_ACTIONS = 
[
    :cp, :merge, :monitor, :release, :delete
]
NO_CHECKOUT_ACTIONS = 
[
    :create, :delete, :list, :list_stable, :push, :monitor, :monitor_stable
]
ALL_BRANCHES_ACTIONS = 
[
    :create
]
ACTION_HELP = 
[
    "* cp: Backport commits and eventually push them to github",
    "* create: Create missing local branches from all the stable branches",
    "* delete: Delete all local branches using the suffix",
    "* steal: Steal commit from upstream that fixes commit in the branch or were tagged as stable",
    "* list: List commit present in the branch but not in the stable branch",
    "* list_stable: List commit present in the stable branch but not in the latest associated relase",
    "* merge: Merge branch with suffix specified in -m <suff> into the main branch",
    "* push: Push branches to github for validation",
    "* monitor: Check the travis state of all branches",
    "* push_stable: Push to stable repo",
    "* monitor_stable: Check the travis state of all stable branches",
    "* release: Create new release on all concerned branches",
    "* reset: Reset branch against upstream",
]

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(repo, version, travis, branch_suff) ⇒ Branch

Returns a new instance of Branch.



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# File 'lib/branch.rb', line 170

def initialize(repo, version, travis, branch_suff)
    GitMaintain::checkDirectConstructor(self.class)

    @repo          = repo
    @travis        = travis
    @version       = version
    @branch_suff   = branch_suff

    if version =~ /^[0-9]+$/
        @local_branch  = @repo.versionToLocalBranch(@version, @branch_suff)
        @remote_branch = @repo.versionToStableBranch(@version)
        @branch_type = :std
        @verbose_name = "v"+version
    else
        @remote_branch = @local_branch = version
        @branch_type = :user_specified
        @verbose_name = version
    end

    @head          = @repo.runGit("rev-parse --verify --quiet #{@local_branch}")
    @remote_ref    = "#{@repo.stable_repo}/#{@remote_branch}"
    @stable_head   = @repo.runGit("rev-parse --verify --quiet #{@remote_ref}")
    @stable_base   = @repo.findStableBase(@local_branch)
end

Instance Attribute Details

#exists ⇒ Object (readonly)

Returns the value of attribute exists.



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# File 'lib/branch.rb', line 194

def exists
  @exists
end

#head ⇒ Object (readonly)

Returns the value of attribute head.



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# File 'lib/branch.rb', line 194

def head
  @head
end

#local_branch ⇒ Object (readonly)

Returns the value of attribute local_branch.



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# File 'lib/branch.rb', line 194

def local_branch
  @local_branch
end

#remote_branch ⇒ Object (readonly)

Returns the value of attribute remote_branch.



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# File 'lib/branch.rb', line 194

def remote_branch
  @remote_branch
end

#remote_ref ⇒ Object (readonly)

Returns the value of attribute remote_ref.



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# File 'lib/branch.rb', line 194

def remote_ref
  @remote_ref
end

#stable_head ⇒ Object (readonly)

Returns the value of attribute stable_head.



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# File 'lib/branch.rb', line 194

def stable_head
  @stable_head
end

#verbose_name ⇒ Object (readonly)

Returns the value of attribute verbose_name.



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# File 'lib/branch.rb', line 194

def verbose_name
  @verbose_name
end

#version ⇒ Object (readonly)

Returns the value of attribute version.



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# File 'lib/branch.rb', line 194

def version
  @version
end

Class Method Details

.check_opts(opts) ⇒ Object 



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# File 'lib/branch.rb', line 108

def self.check_opts(opts)
    if opts[:action] == :push_stable ||
       opts[:action] == :release then
        if opts[:br_suff] != "master" then
            raise "Action #{opts[:action]} can only be done on 'master' suffixed branches"
        end
    end
    if opts[:action] == :delete then
        if opts[:br_suff] == "master" then
            raise "Action #{opts[:action]} can NOT be done on 'master' suffixed branches"
        end
    end
end

.execAction(opts, action) ⇒ Object 



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# File 'lib/branch.rb', line 122

def self.execAction(opts, action)
    repo   = Repo::load()
    travis = TravisChecker::load(repo)

    if NO_FETCH_ACTIONS.index(action) == nil && opts[:no_fetch] == false then
        repo.stableUpdate()
    end

    branchList=[]
    if opts[:manual_branch] == nil then
        unfilteredList = nil
        if ALL_BRANCHES_ACTIONS.index(action) != nil then
            unfilteredList = repo.getStableBranchList()
        else
            unfilteredList = repo.getBranchList(opts[:br_suff])
        end
        branchList = unfilteredList.map(){|br|
            branch = Branch::load(repo, br, travis, opts[:br_suff])
            case branch.is_targetted?(opts)
            when :too_old
                GitMaintain::log(:VERBOSE, "Skipping older v#{branch.version}")
                next
            when :no_match
                GitMaintain::log(:VERBOSE, "Skipping v#{branch.version} not matching" +
                                           opts[:version].to_s())
                next
            end
            branch
        }.compact()
    else
        branchList = [ Branch::load(repo, opts[:manual_branch], travis, opts[:br_suff]) ]
    end

    loop do
        system("clear; date") if opts[:watch] != false
        branchList.each(){|branch|
            if NO_CHECKOUT_ACTIONS.index(action) == nil  then
                GitMaintain::log(:INFO, "Working on #{branch.verbose_name}")
                branch.checkout()
            end
            branch.send(action, opts)
        }
        break if opts[:watch] == false
        sleep(opts[:watch])
        travis.emptyCache()
    end
end

.load(repo, version, travis, branch_suff) ⇒ Object 



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# File 'lib/branch.rb', line 43

def self.load(repo, version, travis, branch_suff)
    repo_name = File.basename(repo.path)
    return GitMaintain::loadClass(Branch, repo_name, repo, version, travis, branch_suff)
end

.set_opts(action, optsParser, opts) ⇒ Object 



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# File 'lib/branch.rb', line 48

def self.set_opts(action, optsParser, opts)
    opts[:base_ver] = 0
    opts[:version] = /.*/
    opts[:commits] = []
    opts[:do_merge] = false
    opts[:push_force] = false
    opts[:no_travis] = false
    opts[:all] = false
    opts[:check_only] = false
    opts[:no_fetch] = false
    opts[:watch] = false

    optsParser.on("-v", "--base-version [MIN_VER]", Integer, "Older release to consider.") {
        |val| opts[:base_ver] = val}
    optsParser.on("-V", "--version [regexp]", Regexp, "Regexp to filter versions.") {
        |val| opts[:version] = val}

    if  ALL_BRANCHES_ACTIONS.index(action) == nil &&
        action != :merge &&
        action != :delete then
        optsParser.on("-B", "--manual-branch <branch name>", "Work on a specific (non-stable) branch.") {
            |val| opts[:manual_branch] = val}
    end

    if NO_FETCH_ACTIONS.index(action) == nil
        optsParser.on("--no-fetch", "Skip fetch of stable repo.") {
            |val| opts[:no_fetch] = true}
    end

    case action
    when :cp
        optsParser.banner += "-c <sha1> [-c <sha1> ...]"
        optsParser.on("-c", "--sha1 [SHA1]", String, "Commit to cherry-pick. Can be used multiple time.") {
            |val| opts[:commits] << val}
    when :merge
        optsParser.banner += "-m <suffix>"
        optsParser.on("-m", "--merge [SUFFIX]", "Merge branch with suffix.") {
            |val| opts[:do_merge] = val}
    when :monitor, :monitor_stable
        optsParser.on("-w", "--watch <PERIOD>", Integer,
                      "Watch and refresh travis status every <PERIOD>.") {
            |val| opts[:watch] = val}
    when :push
        optsParser.banner += "[-f]"
        optsParser.on("-f", "--force", "Add --force to git push (for 'push' action).") {
            |val| opts[:push_force] = val}
    when :push_stable
        optsParser.banner += "[-T]"
        optsParser.on("-T", "--no-travis", "Ignore Travis build status and push anyway.") {
            |val| opts[:no_travis] = true}
        optsParser.on("-c", "--check", "Check if there is something to be pushed.") {
            |val| opts[:check_only] = true}
    when :steal
        optsParser.banner += "[-a]"
        optsParser.on("-a", "--all", "Check all commits from master. "+
                                       "By default only new commits (since last successful run) are considered.") {
            |val| opts[:all] = true}
    end
end

Instance Method Details

#checkout ⇒ Object

Checkout the repo to the given branch



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# File 'lib/branch.rb', line 213

def checkout()
    print @repo.runGit("checkout -q #{@local_branch}")
    if $? != 0 then
        raise "Error: Failed to checkout the branch"
    end
end

#cp(opts) ⇒ Object

Cherry pick an array of commits



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# File 'lib/branch.rb', line 221

def cp(opts)
    opts[:commits].each(){|commit|
        prev_head=@repo.runGit("rev-parse HEAD")
        log(:INFO, "Applying #{@repo.getCommitHeadline(commit)}")
        @repo.runGit("cherry-pick #{commit}")
        if $? != 0 then
            log(:WARNING, "Cherry pick failure. Starting bash for manual fixes. Exit shell to continue")
   @repo.runBash()
  end
        new_head=@repo.runGit("rev-parse HEAD")
        # Do not make commit pretty if it was not applied
        if new_head != prev_head
      make_pretty(commit)
        end
    }
end

#create(opts) ⇒ Object 



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# File 'lib/branch.rb', line 405

def create(opts)
    return if @head != ""
    log(:INFO, "Creating missing #{@local_branch} from #{@remote_ref}")
    @repo.runGit("branch #{@local_branch} #{@remote_ref}")
end

#delete(opts) ⇒ Object 



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# File 'lib/branch.rb', line 411

def delete(opts)
    rep = GitMaintain::confirm(opts, "delete branch #{@local_branch}")
    if rep == "y" then
        @repo.runGit("branch -D #{@local_branch}")
    else
        log(:INFO, "Skipping deletion")
        return
    end
end

#is_targetted?(opts) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/branch.rb', line 201

def is_targetted?(opts)
    return true if @branch_type == :user_specified
    if @version.to_i < opts[:base_ver] then
        return :too_old
    end
    if @version !~ opts[:version] then
        return :no_match
    end
    return true
end

#list(opts) ⇒ Object

List commits in the branch that are no in the stable branch



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# File 'lib/branch.rb', line 267

def list(opts)
    GitMaintain::log(:INFO, "Working on #{@verbose_name}")
    GitMaintain::showLog(opts, @local_branch, @remote_ref)
end

#list_stable(opts) ⇒ Object

List commits in the stable_branch that are no in the latest release



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# File 'lib/branch.rb', line 273

def list_stable(opts)
    GitMaintain::log(:INFO, "Working on #{@verbose_name}")
    GitMaintain::showLog(opts, @remote_ref, @repo.runGit("describe --abbrev=0 #{@local_branch}"))
end

#log(lvl, str) ⇒ Object 



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# File 'lib/branch.rb', line 197

def log(lvl, str)
    GitMaintain::log(lvl, str)
end

#merge(opts) ⇒ Object

Merge merge_branch into this one



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# File 'lib/branch.rb', line 279

def merge(opts)
    merge_branch = @repo.versionToLocalBranch(@version, opts[:do_merge])

    # Make sure branch exists
    hash_to_merge = @repo.runGit("rev-parse --verify --quiet #{merge_branch}")
    if $? != 0 then
        log(:INFO, "Branch #{merge_branch} does not exists. Skipping...")
        return
    end

    # See if there is anything worth merging
    merge_base_hash = @repo.runGit("merge-base #{merge_branch} #{@local_branch}")
    if merge_base_hash == hash_to_merge then
        log(:INFO, "Branch #{merge_branch} has no commit that needs to be merged")
        return
    end

    rep = GitMaintain::checkLog(opts, merge_branch, @local_branch, "merge")
    if rep == "y" then
        @repo.runGit("merge #{merge_branch}")
        if $? != 0 then
            log(:WARNING, "Merge failure. Starting bash for manual fixes. Exit shell to continue")
   @repo.runBash()
  end
    else
        log(:INFO, "Skipping merge")
        return
    end 
end

#monitor(opts) ⇒ Object

Monitor the build status on Travis



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# File 'lib/branch.rb', line 320

def monitor(opts)
    st = @travis.getValidState(head)
    suff=""
    case st
    when "started"
        suff= " started at #{@travis.getValidTS(head)}"
    end
    log(:INFO, "Status for v#{@version}: " + st + suff)
    if st == "failed" && opts[:watch] == false
        rep = "y"
        suff=""
        while rep == "y"
            rep = GitMaintain::confirm(opts, "see the build log#{suff}")
            if rep == "y" then
                log = @travis.getValidLog(head)
                tmp = `mktemp`.chomp()
                tmpfile = File.open(tmp, "w+")
                tmpfile.puts(log)
                tmpfile.close()
                system("less -r #{tmp}")
                `rm -f #{tmp}`
            end
            suff=" again"
        end
    end
end

#monitor_stable(opts) ⇒ Object

Monitor the build status of the stable branch on Travis



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# File 'lib/branch.rb', line 375

def monitor_stable(opts)
    st = @travis.getStableState(@stable_head)
    suff=""
    case st
    when "started"
        suff= " started at #{@travis.getStableTS(@stable_head)}"
    end
    log(:INFO, "Status for v#{@version}: " + st + suff)
end

#push(opts) ⇒ Object

Push the branch to the validation repo



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# File 'lib/branch.rb', line 310

def push(opts)
    if same_sha?(@local_branch, @repo.valid_repo + "/" + @local_branch) then
        log(:INFO, "Nothing to push")
        return
    end

   @repo.runGit("push #{opts[:push_force] == true ? "-f" : ""} #{@repo.valid_repo} #{@local_branch}")
end

#push_stable(opts) ⇒ Object

Push branch to the stable repo



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# File 'lib/branch.rb', line 348

def push_stable(opts)
    if (opts[:no_travis] != true && @NO_TRAVIS != true) &&
       @travis.checkValidState(@head) != true then
        log(:WARNING, "Build is not passed on travis. Skipping push to stable")
        return
    end

    if same_sha?(@local_branch, @remote_ref) then
        log(:INFO, "Stable is already up-to-date")
        return
    end

    if opts[:check_only] == true then
        GitMaintain::checkLog(opts, @local_branch, @remote_ref, "")
        return
    end

    rep = GitMaintain::checkLog(opts, @local_branch, @remote_ref, "submit")
    if rep == "y" then
        @repo.runGit("push #{@repo.stable_repo} #{@local_branch}:#{@remote_branch}")
    else
        log(:INFO, "Skipping push to stable")
        return
    end
end

#release(opts) ⇒ Object 



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# File 'lib/branch.rb', line 401

def release(opts)
    log(:ERROR,"#No release command available for this repo")
end

#reset(opts) ⇒ Object

Reset the branch to the upstream stable one



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# File 'lib/branch.rb', line 386

def reset(opts)
    if same_sha?(@local_branch, @remote_ref) then
        log(:INFO, "Nothing to reset")
        return
    end

    rep = GitMaintain::checkLog(opts, @local_branch, @remote_ref, "reset")
    if rep == "y" then
        @repo.runGit("reset --hard #{@remote_ref}")
    else
        log(:INFO, "Skipping reset")
        return
    end
end

#steal(opts) ⇒ Object

Steal upstream commits that are not in the branch



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# File 'lib/branch.rb', line 239

def steal(opts)
    base_ref=@stable_base

    # If we are not force checking everything,
    # try to start from the last tag we steal upto
    if opts[:all] != true then
        sha = @repo.runGit("rev-parse 'git-maintain/steal/last/#{@stable_base}' 2>&1")
        if $? == 0 then
            base_ref=sha
            log(:VERBOSE, "Starting from last successfull run:")
            log(:VERBOSE, @repo.getCommitHeadline(base_ref))
        end
    end

    master_sha=@repo.runGit("rev-parse origin/master")
    res = steal_all(opts, "#{base_ref}..#{master_sha}")

    # If we picked all the commits (or nothing happened)
    # Mark the current master as the last checked point so we
    # can just steal from this point on the next run
    if res == true then
        @repo.runGit("tag -f 'git-maintain/steal/last/#{@stable_base}' origin/master")
        log(:VERBOSE, "Marking new last successfull run at:")
        log(:VERBOSE, @repo.getCommitHeadline(master_sha))
    end
end