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initial extraction and import

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0 parents commit d6e21a96cb7d58dd751cfeaf35066cb439baba36 @tobyhede committed Jan 29, 2012
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  1. +8 −0 .gitignore
  2. +227 −0 LICENSE
  3. +22 −0 README
  4. +3 −0 project.clj
  5. +111 −0 src/leiningen/git-deps.clj
  6. +6 −0 test/lein_git_deps/test/core.clj
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+/pom.xml
+*jar
+/lib
+/classes
+/native
+/.lein-failures
+/checkouts
+/.lein-deps-sum
227 LICENSE
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+Eclipse Public License - v 1.0
+
+THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS ECLIPSE
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+This Agreement is governed by the laws of the State of California and
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+its rights to a jury trial in any resulting litigation.
22 README
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+# lein-git-deps
+
+FIXME: write description
+
+Original code extracted from the excellent ClojureScript One Project:
+
+https://github.com/brentonashworth/one
+https://github.com/brentonashworth/one/blob/master/src/leiningen/git_deps.clj
+
+
+## Usage
+
+FIXME: write
+
+## License
+
+Copyright (C) 2012 Toby Hede
+
+Copyright (C) 2012 Brenton Ashworth and Relevance, Inc
+
+Distributed under the Eclipse Public License, the same as Clojure uses. See the file LICENSE.
+
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+(defproject lein-git-deps "1.0.0-SNAPSHOT"
+ :description "Attach git dependencies to a leiningen project"
+ :dependencies [[org.clojure/clojure "1.3.0"]])
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+(ns leiningen.git-deps
+ "How this works: It clones projects into .lein-git-deps/<whatever>.
+ If the directory already exists, it does a git pull and git checkout."
+ (:require [clojure.java.shell :as sh]
+ [clojure.java.io :as io]
+ [clojure.string :as string]))
+
+;; Why, you might ask, are we using str here instead of simply def'ing
+;; the var to a string directly? The answer is that we are working
+;; around a bug in marginalia where it can't tell the difference
+;; between the string that's the value for a def and a docstring. It
+;; will hopefully be fixed RSN, because this makes us feel dirty.
+(def ^{:private true
+ :doc "The directory into which dependencies will be cloned."}
+ git-deps-dir (str ".lein-git-deps"))
+
+(defn- directory-exists?
+ "Return true if the specified directory exists."
+ [dir]
+ (.isDirectory (io/file dir)))
+
+(defn- default-clone-dir
+ "Given a git URL, return the directory it would clone into by default."
+ [uri]
+ (string/join "." (-> uri
+ (string/split #"/")
+ (last)
+ (string/split #"\.")
+ butlast)))
+
+(defn- exec
+ "Run a command, throwing an exception if it fails, returning the
+ result as with clojure.java.shell/sh."
+ [& args]
+ (let [{:keys [exit out err] :as result} (apply sh/sh args)]
+ (if (zero? exit)
+ result
+ (throw
+ (Exception.
+ (format "Command %s failed with exit code %s\n%s\n%s"
+ (apply str (interpose " " args))
+ exit
+ out
+ err))))))
+
+(defn- git-clone
+ "Clone the git repository at url into dir-name while working in
+ directory working-dir."
+ [url dir-name working-dir]
+ (apply exec (remove nil? ["git" "clone" url (str dir-name) :dir working-dir])))
+
+(defn- git-checkout
+ "Check out the specified commit in dir."
+ [commit dir]
+ (println "Running git checkout " commit " in " (str dir))
+ (exec "git" "checkout" commit :dir dir))
+
+(defn- detached-head?
+ "Return true if the git repository in dir has HEAD detached."
+ [dir]
+ (let [{out :out} (exec "git" "branch" "--color=never" :dir dir)
+ lines (string/split-lines out)
+ current-branch (first (filter #(.startsWith % "*") lines))]
+ (when-not current-branch
+ (throw (Exception. "Unable to determine current branch")))
+ (= current-branch "* (no branch)")))
+
+(defn- git-pull
+ "Run 'git-pull' in directory dir, but only if we're on a branch. If
+ HEAD is detached, we only do a fetch, not a full pull."
+ [dir]
+ (println "Running git pull on " (str dir))
+ (if (detached-head? dir)
+ (do
+ (println "Not on a branch, so fetching instead of pulling.")
+ (exec "git" "fetch" :dir dir))
+ (exec "git" "pull" :dir dir)))
+
+(defn git-deps
+ "A leiningen task that will pull dependencies in via git.
+
+ Dependencies should be listed in project.clj under the
+ :git-dependencies key in one of these three forms:
+
+ :git-dependencies [;; First form: just a URL.
+ [\"https://github.com/foo/bar.git\"]
+
+ ;; Second form: A URL and a ref, which can be anything
+ ;; you can specify for 'git checkout', like a commit id
+ ;; or a branch name.
+ [\"https://github.com/foo/baz.git\"
+ \"329708b\"]
+
+ ;; Third form: A URL, a commit, and a map
+ [\"https://github.com/foo/quux.git\"
+ \"some-branch\"
+ {:dir \"alternate-directory\"}]]
+"
+ [project]
+ (when-not (directory-exists? git-deps-dir)
+ (.mkdir (io/file git-deps-dir)))
+ (doseq [dep (:git-dependencies project)]
+ (println "Setting up dependency for " dep)
+ (let [[dep-url commit {clone-dir-name :dir}] dep
+ commit (or commit "master")
+ clone-dir-name (or clone-dir-name (default-clone-dir dep-url))
+ clone-dir (io/file git-deps-dir clone-dir-name)]
+ (if (directory-exists? clone-dir)
+ (git-pull clone-dir)
+ (git-clone dep-url clone-dir-name git-deps-dir))
+ (git-checkout commit clone-dir))))
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+(ns lein-git-deps.test.core
+ (:use [lein-git-deps.core])
+ (:use [clojure.test]))
+
+(deftest replace-me ;; FIXME: write
+ (is false "No tests have been written."))

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