hy/scripts/reformat-changelog

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#!/usr/bin/env hy
(import re)
(import pdb)
(import codecs)
(setv *maintainer-line*
" -- Alexander Artemenko <svetlyak.40wt@gmail.com> Thu, 30 Sep 2014 13:06:09 +0400")
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(defn read-lines-from-file [filename]
(let [[f (codecs.open filename "r" "utf-8")]]
(fn [] (let [[line (.readline f) ]]
line))))
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(defn get-version-number [line]
(let [[match (re.search r"Changes from.*(\d+\.\d+\.\d+)$" line)]]
(if match
(let [[version (.group match (int 1))]
[numbered (list (map int (.split version "."))) ]
[explicit-mapping {"0.9.12" "0.10.0"
"0.8.2" "0.9.0"}]]
(assoc numbered 2 (+ (get numbered 2) 1))
(.get explicit-mapping
version
(.join "." (map str numbered)))))))
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(defn read-version-content [reader]
(setv line (reader))
(setv content [])
(while (and line (not (get-version-number line)))
(.append content (.strip line))
(setv line (reader)))
[content line])
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(defn read-versions-from-file [filename]
(let [[reader (read-lines-from-file filename)]]
(read-versions-rec (reader)
reader)))
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(defn read-versions-rec [line reader]
(if line
(let [[version (get-version-number line)]
[[content next-line] (read-version-content reader)]]
(+ [{"from" version
"content" content}]
(read-versions-rec next-line reader)))
[]))
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(defn format-deb-version [version]
(setv result [(.format "hy ({}) unstable; urgency=low"
(get version "from"))])
(for [line (get version "content")]
(.append result (+ " " line)))
(.append result *maintainer-line*)
(.append result "")
(.join "\n" result))
(defmain [&rest args]
(let ((versions (read-versions-from-file "NEWS")))
(for [version versions]
(print (.encode (format-deb-version version) "utf-8")))))