From a3b64f13ac419f249da0f9bd3531733e99f2509b Mon Sep 17 00:00:00 2001
From: Juan Ibiapina <juanibiapina@gmail.com>
Date: Mon, 24 Jun 2013 09:29:33 -0300
Subject: [PATCH] Initial working prototype.

---
 .gitignore                |  1 +
 README.md                 | 37 ++++++++++++++++++++
 bin/basher                |  1 +
 lib/basher.bash           |  6 ++++
 libexec/basher            | 41 ++++++++++++++++++++++
 libexec/basher-init       |  4 +++
 tests/assertions.bash     | 74 +++++++++++++++++++++++++++++++++++++++
 tests/basher.bats         | 13 +++++++
 tests/init.bats           | 13 +++++++
 tests/libexec/basher-echo |  3 ++
 tests/test_helper.bash    |  9 +++++
 11 files changed, 202 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 README.md
 create mode 120000 bin/basher
 create mode 100644 lib/basher.bash
 create mode 100755 libexec/basher
 create mode 100755 libexec/basher-init
 create mode 100644 tests/assertions.bash
 create mode 100644 tests/basher.bats
 create mode 100644 tests/init.bats
 create mode 100755 tests/libexec/basher-echo
 create mode 100644 tests/test_helper.bash

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..52146d6
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+modules/
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..e2b1021
--- /dev/null
+++ b/README.md
@@ -0,0 +1,37 @@
+# What is it?
+
+A tool to make it easier to manage bash modules.
+
+# Installation
+
+1. Checkout basher on `~/.basher`
+
+    ~~~ sh
+    $ git clone git://github.com/juanibiapina/basher.git ~/.basher
+    ~~~
+
+2. Add `~/.basher/bin` to `$PATH` for easy access to the basher command-line utility.
+
+    ~~~ sh
+    $ echo 'export PATH="$HOME/.basher/bin:$PATH"' >> ~/.bash_profile
+    ~~~
+
+    **Ubuntu note**: Modify your `~/.profile` instead of `~/.bash_profile`.
+
+    **Zsh note**: Modify your `~/.zshrc` file instead of `~/.bash_profile`.
+
+3. Add `basher init` to your shell to enable basher runtime functions
+
+    ~~~ sh
+    $ echo 'eval "$(basher init -)"' >> ~/.bash_profile
+    ~~~
+
+    _Same as in previous step, use `~/.profile` on Ubuntu, `~/.zshrc` for Zsh._
+
+# Usage
+
+## Runtime functions
+
+### require
+
+`require module_name`
diff --git a/bin/basher b/bin/basher
new file mode 120000
index 0000000..35af24c
--- /dev/null
+++ b/bin/basher
@@ -0,0 +1 @@
+../libexec/basher
\ No newline at end of file
diff --git a/lib/basher.bash b/lib/basher.bash
new file mode 100644
index 0000000..0412d0a
--- /dev/null
+++ b/lib/basher.bash
@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+
+require() {
+  local module_name="$1"
+  source "$BASHER_ROOT/modules/$module_name/lib/$module_name.bash"
+}
diff --git a/libexec/basher b/libexec/basher
new file mode 100755
index 0000000..9bdf968
--- /dev/null
+++ b/libexec/basher
@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+
+resolve_link() {
+  $(type -p greadlink readlink | head -1) "$1"
+}
+
+abs_dirname() {
+  local cwd="$(pwd)"
+  local path="$1"
+
+  while [ -n "$path" ]; do
+    cd "${path%/*}"
+    local name="${path##*/}"
+    path="$(resolve_link "$name" || true)"
+  done
+
+  pwd
+  cd "$cwd"
+}
+
+if [ -z "$BASHER_ROOT" ]; then
+  BASHER_ROOT="$HOME/.basher"
+fi
+export BASHER_ROOT
+
+bin_path="$(abs_dirname "$0")"
+export PATH="${bin_path}:${PATH}"
+
+command="$1"
+case "$command" in
+* )
+  command_path="$(command -v "basher-$command" || true)"
+  if [ -z "$command_path" ]; then
+    echo "basher: no such command '$command'" >&2
+    exit 1
+  fi
+
+  shift 1
+  exec "$command_path" "$@"
+  ;;
+esac
diff --git a/libexec/basher-init b/libexec/basher-init
new file mode 100755
index 0000000..b41a4fb
--- /dev/null
+++ b/libexec/basher-init
@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+
+echo "export BASHER_ROOT=$BASHER_ROOT"
+echo "source $BASHER_ROOT/lib/basher.bash"
diff --git a/tests/assertions.bash b/tests/assertions.bash
new file mode 100644
index 0000000..c3a4994
--- /dev/null
+++ b/tests/assertions.bash
@@ -0,0 +1,74 @@
+flunk() {
+  if [ "$#" -eq 0 ]; then
+    cat -
+  else
+    echo "$@"
+  fi
+  return 1
+}
+
+assert_success() {
+  if [ "$status" -ne 0 ]; then
+    flunk "command failed with exit status $status"
+  elif [ "$#" -gt 0 ]; then
+    assert_output "$1"
+  fi
+}
+
+assert_failure() {
+  if [ "$status" -eq 0 ]; then
+    flunk "expected failed exit status"
+  elif [ "$#" -gt 0 ]; then
+    assert_output "$1"
+  fi
+}
+
+assert_equal() {
+  if [ "$1" != "$2" ]; then
+    { echo "expected: $1"
+      echo "actual:   $2"
+    } | flunk
+  fi
+}
+
+assert_output() {
+  local expected
+  if [ $# -eq 0 ]; then expected="$(cat -)"
+  else expected="$1"
+  fi
+  assert_equal "$expected" "$output"
+}
+
+assert_line() {
+  if [ "$1" -ge 0 ] 2>/dev/null; then
+    assert_equal "$2" "${lines[$1]}"
+  else
+    local line
+    for line in "${lines[@]}"; do
+      if [ "$line" = "$1" ]; then return 0; fi
+    done
+    flunk "expected line \`$1'"
+  fi
+}
+
+refute_line() {
+  if [ "$1" -ge 0 ] 2>/dev/null; then
+    local num_lines="${#lines[@]}"
+    if [ "$1" -lt "$num_lines" ]; then
+      flunk "output has $num_lines lines"
+    fi
+  else
+    local line
+    for line in "${lines[@]}"; do
+      if [ "$line" = "$1" ]; then
+        flunk "expected to not find line \`$line'"
+      fi
+    done
+  fi
+}
+
+assert() {
+  if ! "$@"; then
+    flunk "failed: $@"
+  fi
+}
diff --git a/tests/basher.bats b/tests/basher.bats
new file mode 100644
index 0000000..7b4c4e8
--- /dev/null
+++ b/tests/basher.bats
@@ -0,0 +1,13 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+@test "default BASHER_ROOT" {
+  BASHER_ROOT= run basher echo BASHER_ROOT
+  assert_output "$HOME/.basher"
+}
+
+@test "inherited BASHER_ROOT" {
+  BASHER_ROOT=/tmp/basher run basher echo BASHER_ROOT
+  assert_output "/tmp/basher"
+}
diff --git a/tests/init.bats b/tests/init.bats
new file mode 100644
index 0000000..6662331
--- /dev/null
+++ b/tests/init.bats
@@ -0,0 +1,13 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+@test "sources main basher lib" {
+  run basher-init -
+  assert_line "source $BASHER_ROOT/lib/basher.bash"
+}
+
+@test "exports BASHER_ROOT" {
+  BASHER_ROOT=/lol run basher-init -
+  assert_line 0 "export BASHER_ROOT=/lol"
+}
diff --git a/tests/libexec/basher-echo b/tests/libexec/basher-echo
new file mode 100755
index 0000000..6ad3190
--- /dev/null
+++ b/tests/libexec/basher-echo
@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+eval "echo \$$1"
diff --git a/tests/test_helper.bash b/tests/test_helper.bash
new file mode 100644
index 0000000..0b16ef9
--- /dev/null
+++ b/tests/test_helper.bash
@@ -0,0 +1,9 @@
+load assertions
+
+export PATH="${BATS_TEST_DIRNAME}/libexec:$PATH"
+export PATH="${BATS_TEST_DIRNAME}/../libexec:$PATH"
+
+setup() {
+  export BASHER_ROOT="$BATS_TEST_DIRNAME/.."
+  eval "$(basher init -)"
+}