On Wed, 6 Feb 2019 19:42:19 +0000
andrew@xxxxxxxxxxxxx wrote:
> From: Andrew Oakley <andrew@xxxxxxxxxxxxx>
>
> Perforce allows you commit files and directories with the same name, so
> you could have files //depot/foo and //depot/foo/bar both checked in. A
> p4 sync of a repository in this state fails. Deleting one of the files
> recovers the repository.
>
> When this happens we want git-p4 to recover in the same way as perforce.
I'm finding the test fails for me on a clean git repo, although I can't see any obvious reason why.
Having the ability to detect when Perforce users submit a change which creates a file-inside-a-file will be really very useful.
Luke
>
> Signed-off-by: Andrew Oakley <andrew@xxxxxxxxxxxxx>
> ---
> git-p4.py | 41 ++++++++++++++++++++++--
> t/t9834-git-p4-file-dir-bug.sh | 58 ++++++++++++++++++++++++++++++++++
> 2 files changed, 97 insertions(+), 2 deletions(-)
> create mode 100755 t/t9834-git-p4-file-dir-bug.sh
>
> diff --git a/git-p4.py b/git-p4.py
> index 3e12774f96..6bf2bbbcec 100755
> --- a/git-p4.py
> +++ b/git-p4.py
> @@ -3012,6 +3012,43 @@ def hasBranchPrefix(self, path):
> print('Ignoring file outside of prefix: {0}'.format(path))
> return hasPrefix
>
> + def isIncluded(self, path):
> + return self.inClientSpec(path) and self.hasBranchPrefix(path)
> +
> + def findShadowedFiles(self, files, change):
> + # Perforce allows you commit files and directories with the same name,
> + # so you could have files //depot/foo and //depot/foo/bar both checked
> + # in. A p4 sync of a repository in this state fails. Deleting one of
> + # the files recovers the repository.
> + #
> + # Git will not allow the broken state to exist and only the most recent
> + # of the conflicting names is left in the repository. When one of the
> + # conflicting files is deleted we need to re-add the other one to make
> + # sure the git repository recovers in the same way as perforce.
> + deleted = [f for f in files if f['action'] in self.delete_actions]
> + to_check = set()
> + for f in deleted:
> + path = f['path']
> + to_check.add(path + '/...')
> + while True:
> + path = path.rsplit("/", 1)[0]
> + if path == "/" or path in to_check:
> + break
> + to_check.add(path)
> + to_check = [p for p in to_check if self.isIncluded(p)]
> + if to_check:
> + stat_result = p4CmdList(
> + ["fstat", "-T", "depotFile,headRev,headType"] +
> + ["%s@%s" % (p, change) for p in to_check])
> + for record in stat_result:
> + if record['code'] != 'stat':
> + continue
> + files.append({
> + 'action': 'add',
> + 'path': record['depotFile'],
> + 'rev': record['headRev'],
> + 'type': record['headType']})
> +
> def commit(self, details, files, branch, parent = "", allow_empty=False):
> epoch = details["time"]
> author = details["user"]
> @@ -3023,8 +3060,8 @@ def commit(self, details, files, branch, parent = "", allow_empty=False):
> if self.clientSpecDirs:
> self.clientSpecDirs.update_client_spec_path_cache(files)
>
> - files = [f for f in files
> - if self.inClientSpec(f['path']) and self.hasBranchPrefix(f['path'])]
> + files = [f for f in files if self.isIncluded(f['path'])]
> + self.findShadowedFiles(files, details["change"])
>
> if gitConfigBool('git-p4.keepEmptyCommits'):
> allow_empty = True
> diff --git a/t/t9834-git-p4-file-dir-bug.sh b/t/t9834-git-p4-file-dir-bug.sh
> new file mode 100755
> index 0000000000..9839a3d2bb
> --- /dev/null
> +++ b/t/t9834-git-p4-file-dir-bug.sh
> @@ -0,0 +1,58 @@
> +#!/bin/sh
> +
> +test_description='git p4 directory/file bug handling
> +
> +This test creates files and directories with the same name in perforce and
> +checks that git-p4 recovers from the error at the same time as the perforce
> +repository.'
> +
> +. ./lib-git-p4.sh
> +
> +test_expect_success 'start p4d' '
> + start_p4d
> +'
> +
> +test_expect_success 'init depot' '
> + (
> + cd "$cli" &&
> +
> + touch add_file_add_dir_del_file add_file_add_dir_del_dir &&
> + p4 add add_file_add_dir_del_file add_file_add_dir_del_dir &&
> + mkdir add_dir_add_file_del_file add_dir_add_file_del_dir &&
> + touch add_dir_add_file_del_file/file add_dir_add_file_del_dir/file &&
> + p4 add add_dir_add_file_del_file/file add_dir_add_file_del_dir/file &&
> + p4 submit -d "add initial" &&
> +
> + rm -f add_file_add_dir_del_file add_file_add_dir_del_dir &&
> + mkdir add_file_add_dir_del_file add_file_add_dir_del_dir &&
> + touch add_file_add_dir_del_file/file add_file_add_dir_del_dir/file &&
> + p4 add add_file_add_dir_del_file/file add_file_add_dir_del_dir/file &&
> + rm -rf add_dir_add_file_del_file add_dir_add_file_del_dir &&
> + touch add_dir_add_file_del_file add_dir_add_file_del_dir &&
> + p4 add add_dir_add_file_del_file add_dir_add_file_del_dir &&
> + p4 submit -d "add conflicting" &&
> +
> + p4 delete -k add_file_add_dir_del_file &&
> + p4 delete -k add_file_add_dir_del_dir/file &&
> + p4 delete -k add_dir_add_file_del_file &&
> + p4 delete -k add_dir_add_file_del_dir/file &&
> + p4 submit -d "delete conflicting"
> + )
> +'
> +
> +test_expect_success 'clone with git-p4' '
> + git p4 clone --dest="$git" //depot/@all
> +'
> +
> +test_expect_success 'check final contents' '
> + test_path_is_dir "$git/add_file_add_dir_del_file" &&
> + test_path_is_file "$git/add_file_add_dir_del_dir" &&
> + test_path_is_dir "$git/add_dir_add_file_del_file" &&
> + test_path_is_file "$git/add_dir_add_file_del_dir"
> +'
> +
> +test_expect_success 'kill p4d' '
> + kill_p4d
> +'
> +
> +test_done
> --
> 2.19.2
>
--
Luke Diamand <luke@xxxxxxxxxxx>
