From f7ea77a21f4d9e860a275a5dde54c5af28ae4492 Mon Sep 17 00:00:00 2001
From: t-bltg <tf.bltg@gmail.com>
Date: Mon, 20 Dec 2021 14:03:51 +0100
Subject: [PATCH] make image() throw

---
 .github/workflows/ci.yml | 19 ++++---------------
 Project.toml             |  2 +-
 src/UnicodePlots.jl      |  2 +-
 src/canvas/imgcanvas.jl  |  4 +++-
 4 files changed, 9 insertions(+), 18 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ae689dff..70c6b6f0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,41 +1,30 @@
 name: CI
-on:
-  pull_request:
-    branches:
-      - master
-  push:
-    branches:
-      - master
-    tags: '*'
+on: [push, pull_request]
+
 jobs:
   test:
-    name: Julia ${{ matrix.version }} - ${{ matrix.os }} - ${{ matrix.arch }} - ${{ github.event_name }}
+    name: Julia ${{ matrix.version }} - ${{ matrix.os }} - ${{ github.event_name }}
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
       matrix:
         version:
-          - '1.6'   # LTS
+          - '1.0'   # oldest supported in Project.toml
           - '1'     # latest stable
           - 'nightly'
         os:
           - ubuntu-latest
-        arch:
-          - x64
         include:  # spare windows/macos CI credits
           - os: windows-latest
             version: '1'
-            arch: x64
           - os: macOS-latest
             version: '1'
-            arch: x64
 
     steps:
       - uses: actions/checkout@v2
       - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.version }}
-          arch: ${{ matrix.arch }}
       - uses: actions/cache@v1
         env:
           cache-name: cache-artifacts
diff --git a/Project.toml b/Project.toml
index ee8fadad..12d2eb28 100644
--- a/Project.toml
+++ b/Project.toml
@@ -14,7 +14,7 @@ SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 StatsBase = "2913bbd2-ae8a-5f71-8c99-4fb6c76f3a91"
 
 [compat]
-ColorTypes = "0.9 - 0.11"
+ColorTypes = "0.9, 0.10, 0.11"
 Crayons = "4.0"
 Requires = "1"
 StatsBase = "0.32, 0.33"
diff --git a/src/UnicodePlots.jl b/src/UnicodePlots.jl
index 623390cb..79f74f57 100644
--- a/src/UnicodePlots.jl
+++ b/src/UnicodePlots.jl
@@ -84,7 +84,7 @@ include("interface/heatmap.jl")
 include("interface/spy.jl")
 include("interface/boxplot.jl")
 
-image(args...; kwargs...) = @warn "not implemented, did you forget 'using ImageInTerminal' ?"
+image(args...; kwargs...) = error("not implemented, did you forget 'using ImageInTerminal' ?")
 
 function __init__()
     @require ImageInTerminal = "d8c32880-2388-543b-8c61-d9f865259254" begin
diff --git a/src/canvas/imgcanvas.jl b/src/canvas/imgcanvas.jl
index 671510a5..4cfd5c27 100644
--- a/src/canvas/imgcanvas.jl
+++ b/src/canvas/imgcanvas.jl
@@ -15,7 +15,9 @@ function render(c::ImgCanvas)
     if (c.sixel[] = ImageInTerminal.use_sixel(c.img))
         h, w = size(c.img)
         # determine the terminal carret size, in pixels
-        char_pixels = ImageInTerminal.Sixel.TerminalTools.query_terminal("\e[16t", r"\e\[6;(\d+);(\d+)t", stdout)
+        char_pixels = ImageInTerminal.Sixel.TerminalTools.query_terminal(
+            "\e[16t", r"\e\[6;(\d+);(\d+)t", stdout
+        )
         char_h, char_w = length(char_pixels) > 1 ? parse.(Int, char_pixels) : (15, 7)
         lines = String[]
         io = IOBuffer()