templater: add subsetparents(rev, revset) function Naming suggestions are welcome. And this could be flagged as an (ADVANCED) function since the primary use case is to draw a graph. This provides all data needed for drawing revisions graph filtered by revset, and allows us to implement a GUI graph viewer in some languages better than Python. A frontend grapher will be quite similar to our graphmod since subsetparents() just returns parent-child relations in the filtered sub graph. Frontend example: https://hg.sr.ht/~yuja/hgv/browse/default/core/hgchangesetgrapher.cpp However, the resulting graph will be simpler than the one "hg log -G" would generate because redundant edges are eliminated. This should be the same graph rendering strategy as TortoiseHg. This function could be implemented as a revset predicate, but that would mean the scanning state couldn't be cached and thus slow. Test cases are split to new file since test-template-functions.t is quite big and we'll need a new branchy repository anyway.

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[package]

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name = "chg"

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version = "0.1.0"

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authors = ["Yuya Nishihara <yuya@tcha.org>"]

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description = "Client for Mercurial command server with cHg extension"

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license = "GPL-2.0+"

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[dependencies]

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bytes = "0.4"

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futures = "0.1"

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libc = "0.2"

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log = { version = "0.4", features = ["std"] }

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tokio = "0.1"

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tokio-hglib = "0.2"

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# TODO: "^0.2.3" once released. we need AsRawFd support.

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tokio-process = { git = "https://github.com/alexcrichton/tokio-process" }

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tokio-timer = "0.2"

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[build-dependencies]

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cc = "1.0"