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cli: after cloning git repo, update to remote's HEAD
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README.md
21
README.md
@ -100,30 +100,26 @@ Now let's clone the same repo using `jj`:
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# repos yet)
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$ jj git clone https://github.com/martinvonz/jj.git jj-jj
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Fetching into new repo in "<dir>/jj-jj"
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Working copy now at: 265ecf5cab2d
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$ cd jj-jj
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```
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Running `jj st` (short for`jj status`) now yields something like this:
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```shell script
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$ jj st
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Parent commit: 000000000000
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Working copy : 60c89901778d
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Parent commit: 723ebb380971 cleanup: restructure escaped newlines to make new rustc happy
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Working copy : 265ecf5cab2d
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The working copy is clean
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```
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The `000000000000` commit is a virtual commit that's called the "root commit".
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It's the root commit of every repo. The reason that it is our working copy's
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parent is that `jj git clone` doesn't yet check out a particular commit.
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We can see from the output above that our working copy has a commit id
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(`265ecf5cab2d` in the example).
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We can also see from the output above that our working copy has a commit id
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(`60c89901778d` in the example).
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Let's check out a different commit so we get some files to work with in the
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working copy:
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Let's check out a particular commit, so we get more predicable output:
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```shell script
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$ jj co 080a9b37ff7e
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Working copy now at: 608c179a60df
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added 84 files, modified 0 files, removed 0 files
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added 2 files, modified 57 files, removed 5 files
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$ jj st
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Parent commit: 080a9b37ff7e cli: make `jj st` show parent commit before working copy commit
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Working copy : 608c179a60df
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@ -255,6 +251,9 @@ o 080a9b37ff7e 6a91b4ba16c7 martinvonz@google.com 2021-05-23 22:08:37.000 -07:00
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o 000000000000 000000000000 1970-01-01 00:00:00.000 +00:00
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```
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(The `000000000000` commit is a virtual commit that's called the "root commit".
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It's the root commit of every repo. The `root` symbol in the revset matches it.)
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There are also operators for getting the parents (`:foo`), children `foo:`,
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ancestors (`,,foo`), descendants (`foo,,`), DAG range (`foo,,bar`, like
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`git log --ancestry-path`), range (`foo,,,bar`, like Git's `foo..bar`). There
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@ -2800,7 +2800,16 @@ fn cmd_git_clone(
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CommandError::UserError(format!("Fetch failed: {:?}", err))
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}
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})?;
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tx.commit();
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if let Ok(fetch_head_ref) = git_repo.find_reference("FETCH_HEAD") {
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if let Ok(fetch_head_git_commit) = fetch_head_ref.peel_to_commit() {
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let fetch_head_id = CommitId(fetch_head_git_commit.id().as_bytes().to_vec());
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if let Ok(fetch_head_commit) = repo.store().get_commit(&fetch_head_id) {
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tx.mut_repo().check_out(ui.settings(), &fetch_head_commit);
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}
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}
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}
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let repo = tx.commit();
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update_working_copy(ui, &repo, &repo.working_copy_locked())?;
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Ok(())
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}
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