Integrated Fossil source control
Prerequisites
Note: This extension leverages your machine's Fossil installation, so you need to install Fossil first.
NOTE: WORK IN PROGRESS. NOT READY FOR RELEASE
 
 
Features
- Add files and commit from the source control side-bar (i.e. where git normally appears). 
- All the basics: commit, add, forget, update, push and pull. 
- See changes inline within text editor. 
- Interactive log for basic file history and diff. 
- Branch, merge heads, merge with branch, resolve + unresolve files. 
- Quickly switch branches, push and pull via status bar. 
- Supports named-branches or bookmark workflows. 
- Automatic incoming/outgoing counters. 
- Undo/rollback. 
Feedback & Contributing
- Please report any bugs, suggestions or documentation requests via the Github issues (yes, I see the irony).
- Feel free to submit pull requests.
Initialize a new repo
 
 
- Just click the Mercurial icon from the source control title area:
Update to a branch/tag/bookmark

- The current branch name is shown in the bottom-left corner.
- Click it to see a list of branches and tags that you can update to.
- When hg.useBookmarksis enabled, this changes to bookmarks.
Settings
hg.enabled { boolean }
- Enables Hg as a source control manager in VS Code.
hg.useBookmarks { boolean }
- Choose between bookmarks vs. named-branches: 
 "false"— named-branches mode (default)
 "true"— bookmarks mode
hg.pushPullScope { all / current / default }
- Specifies what to include in Push/Pull operations.
- Depends on the choice of hg.useBookmarks.
- For named-branches mode:   (i.e. hg.useBookmarks= false)
 "all"— all branches / unrestricted (this is the default)
 "current"— only includes changesets for the current branch
 "default"— only includes changesets for the default branch
- For bookmarks mode:   (i.e. hg.useBookmarks= true)
 "all"— all bookmarks / unrestricted (this is the default)
 "current"— only includes changesets for the active bookmark
 "default"— only includes changesets for bookmarks on the default branch
hg.autoUpdate { boolean }
- Enables automatic update of working directory to branch/bookmark head after pulling (equivalent to hg pull --update)
 "true"— enabled
 "false"— disabled, manual update/merge required
hg.autoInOut { boolean }
- Enables automatic counting of incoming/outgoing changes.
- When enabled, these show in the status bar.
- Updated every 3 minutes, or whenever a commit/push/pull is done.
- Note: when hg.pushPullBranchis set to"current"or"default"then only the respective branch will be included in the counts.
hg.autoRefresh { boolean }
- Enables automatic refreshing of Source Control tab and badge counter when files within the project change: 
 "true"— enabled
 "false"— disabled, manual refresh still available.
hg.countBadge { tracked / all / off }
- Controls the badge counter for Source Control in the activity bar: 
 "tracked"— only count changes to tracked files (default).
 "all"— include untracked files in count.
 "off"— no badge counter.
hg.allowPushNewBranches { boolean }
- Overrides the warning that normally occurs when a new branch is pushed: 
 "true"— new branches are pushed without warning (default).
 "false"— shows a prompt when new branches are being pushed (e.ghg push --new-branch)
hg.path { string / null }
- Specifies an explicit hgfile path to use.
- This should only be used if hgcannot be found automatically.
- The default behaviour is to search for hgin commonly-known install locations and on the PATH.
hg.commandMode
- Controls the method used to communicate with hg.
- There is a slight start-up performance cost with repeatedly running hgcommands.
- Running a command server process in the background allows frequently-used commands to run ~10× faster (e.g. cat,status,summary,branchetc.)
- The server feature is still expiremental, and is therefore not the default.
"cli"— spawn a newhgprocess per command (default)."server"— run a command server process i.e.hg serve --cmdserve
Acknowledgements
Ben Crowl, ajansveld, hoffmael, nioh-wiki, joaomoreno, nsgundy