From 5b9d2b071159d4c96c6004b7cc4b37c5e225b04b Mon Sep 17 00:00:00 2001
From: rkiel <cygnus@pobox.com>
Date: Sat, 20 Jul 2019 09:21:10 -0400
Subject: [PATCH] refactor: new direction

---
 bin/creature-end | 14 ++++----
 js/file.js       | 17 ++++++++++
 js/git.js        | 86 ++++++++++++++++++++++++++++++++++++++++++++----
 3 files changed, 105 insertions(+), 12 deletions(-)
 create mode 100644 js/file.js

diff --git a/bin/creature-end b/bin/creature-end
index e05d755..8997f86 100755
--- a/bin/creature-end
+++ b/bin/creature-end
@@ -22,10 +22,12 @@ function endFeatureBranch(dp) {
 
 commander
   .start()
-  .then(git.setCurrentBranch)
-  .then(git.parseCurrentBranch)
-  .then(validate.mustBeFeatureBranch)
-  .then(git.setStandardBranch)
-  .then(git.isBranchRemote)
-  .then(endFeatureBranch)
+  .then(git.gather)
+  .then(commander.echo)
+  // .then(git.setCurrentBranch)
+  // .then(git.parseCurrentBranch)
+  // .then(validate.mustBeFeatureBranch)
+  // .then(git.setStandardBranch)
+  // .then(git.isBranchRemote)
+  // .then(endFeatureBranch)
   .catch(err => console.error(err));
diff --git a/js/file.js b/js/file.js
new file mode 100644
index 0000000..62784f5
--- /dev/null
+++ b/js/file.js
@@ -0,0 +1,17 @@
+const fs = require("fs");
+const util = require("util");
+
+let lib;
+
+function exists(path) {
+  const stat = util.promisify(fs.stat);
+  return stat(path);
+}
+
+function read(path) {
+  const readFile = util.promisify(fs.readFile);
+  return readFile(path).then(buffer => buffer.toString("utf-8"));
+}
+
+lib = { exists, read };
+module.exports = lib;
diff --git a/js/git.js b/js/git.js
index 75f5b84..b2b1f7e 100644
--- a/js/git.js
+++ b/js/git.js
@@ -4,15 +4,84 @@ const path = x => require("../" + x);
 const commander = path("js/commander");
 const immutable = path("js/immutable");
 const shell = path("js/shell");
+const file = path("js/file");
+const branch = path("js/branch");
 
 let lib;
 
-function setCurrentBranch(dp) {
-  const cmd = "git rev-parse --abbrev-ref HEAD";
-
-  return shell.capture(cmd).then(x => immutable.set(dp, "branch.current", x));
+function setBranch(dp, field, branch) {
+  return immutable.set(dp, `branch.${field}`, branch);
 }
 
+function setCurrentBranch(dp) {
+  return file
+    .read(".git/HEAD")
+    .then(contents => contents.split("/"))
+    .then(parts => _.last(parts))
+    .then(last => last.trim())
+    .then(branch => immutable.set(dp, "branch.current", branch));
+}
+
+function setStandardAndFeature(dp) {
+  const current = _.get(dp, "branch.current");
+  if (branch.isStandard(current)) {
+    return immutable.set(
+      immutable.set(dp, "branch.standard", current),
+      "branch.feature",
+      false
+    );
+  } else {
+    const parts = current.split("-");
+    if (
+      parts.length > 2 &&
+      commander.prefix() === parts[0] &&
+      branch.isStandard(parts[1])
+    ) {
+      return immutable.set(
+        immutable.set(dp, "branch.standard", parts[1]),
+        "branch.feature",
+        current
+      );
+    } else {
+      return immutable.set(
+        immutable.set(dp, "branch.standard", false),
+        "branch.feature",
+        false
+      );
+    }
+  }
+}
+
+function setRemote(dp) {
+  const current = _.get(dp, "branch.current");
+  if (branch.isStandard(current)) {
+    return immutable.set(dp, "branch.remote", false);
+  } else {
+    return file
+      .exists(`.git/refs/remotes/origin/${current}`)
+      .then(() => immutable.set(dp, "branch.remote", current))
+      .catch(() => immutable.set(dp, "branch.remote", false));
+  }
+}
+
+function gather(dp) {
+  return file
+    .exists(".git")
+    .then(() => ({}))
+    .then(lib.setCurrentBranch)
+    .then(lib.setStandardAndFeature)
+    .then(lib.setRemote)
+    .catch(() => {
+      throw "not in GIT_ROOT";
+    });
+}
+
+// function setCurrentBranch(dp) {
+//   const cmd = "git rev-parse --abbrev-ref HEAD";
+//
+//   return shell.capture(cmd).then(x => immutable.set(dp, "branch.current", x));
+// }
+
 function setFeatureBranch(dp) {
   const fb = [
     commander.prefix(),
@@ -46,11 +115,16 @@ function isBranchRemote(dp) {
 }
 
 lib = {
-  setCurrentBranch,
+  //setCurrentBranch,
   setFeatureBranch,
   setStandardBranch,
   parseCurrentBranch,
-  isBranchRemote
+  isBranchRemote,
+  gather,
+  setStandardAndFeature,
+  setCurrentBranch,
+  setRemote,
+  setBranch: _.curry(setBranch)
 };
 
 module.exports = lib;