mirror of
https://github.com/elkowar/dots-of-war.git
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94 lines
2.8 KiB
Fennel
94 lines
2.8 KiB
Fennel
(module utils
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{autoload {a aniseed.core
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fennel aniseed.fennel
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nvim aniseed.nvim}
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require-macros [macros]})
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(def req
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(setmetatable {} {:__index (fn [_ idx] (require idx))}))
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(defn plugin-installed? [name]
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(~= nil (. packer_plugins name)))
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(defn dbg [x]
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(a.println (fennel.view x))
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x)
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(defn single-to-list [x]
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"Returns the list given to it. If given a single value, wraps it in a list"
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(if (a.table? x) x [x]))
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(defn contains? [list elem]
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(or (a.some #(= elem $1) list)) false)
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(defn filter-table [f t]
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(collect [k v (pairs t)]
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(when (f k v)
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(values k v))))
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(defn without-keys [keys t]
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(filter-table #(not (contains? keys $1)) t))
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(defn keymap [modes from to ?opts]
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"Set a mapping in the given modes, and some optional parameters, defaulting to {:noremap true :silent true}.
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If :buffer is set, uses buf_set_keymap rather than set_keymap"
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(local full-opts
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(->> (or ?opts {})
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(a.merge {:noremap true :silent true})
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(without-keys [:buffer])))
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(if (and ?opts (?. ?opts :buffer))
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(a.println (fennel.view modes))
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(each [_ mode (ipairs (single-to-list modes))]
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(nvim.buf_set_keymap 0 mode from to full-opts)
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(nvim.set_keymap mode from to full-opts))))
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(defn del-keymap [mode from ?buf-local]
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"Remove a keymap. Arguments: mode, mapping, bool if mapping should be buffer-local."
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(if ?buf-local
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(nvim.buf_del_keymap 0 mode from)
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(nvim.del_keymap mode from)))
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(defn- safe-require-plugin-config [name]
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(xpcall
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#(require name)
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#(a.println (.. "Error sourcing " name ":\n" (fennel.traceback $1)))))
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(defn use [...]
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"Iterates through the arguments as pairs and calls packer's function for
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each of them. Works around Fennel not liking mixed associative and sequential
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tables as well.
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Additionally sources the file set in the :mod field of the plugin options"
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(let [pkgs [...]
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packer (require "packer")]
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(packer.startup
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(fn [use]
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(each-pair [name opts pkgs]
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(-?> (. opts :mod) (safe-require-plugin-config))
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(use (a.assoc opts 1 name)))))))
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(defn surround-if-present [a mid b]
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(if mid
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(.. a mid b)
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""))
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(defn highlight [group-arg colset]
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(let [default { :fg "NONE" :bg "NONE" :gui "NONE"}
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opts (a.merge default colset)]
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(each [_ group (ipairs (single-to-list group-arg))]
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(nvim.command (.. "hi! "group" guifg='"opts.fg"' guibg='"opts.bg"' gui='"opts.gui"'")))))
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(defn highlight-add [group-arg colset]
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(each [_ group (ipairs (single-to-list group-arg))]
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(nvim.command
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(.. "hi! "
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group
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(surround-if-present " guibg='"colset.bg"'")
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(surround-if-present " guifg='"colset.fg"'")
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(surround-if-present " gui='"colset.gui"'")))))
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(defn comp [f g]
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(fn [...]
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(f (g ...))))
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