README: fix CI URLs

Always use Ghostscript's sRGB.icc.

.travis.yml

@@ -13,7 +13,6 @@ matrix:
             - netpbm
             - ghostscript
             - mupdf-tools
-            - icc-profiles-free
     - name: "python 3.9 Windows"
       os: windows
       language: shell       # 'language: python' is an error on Travis CI Windows

README.md

@@ -1,5 +1,5 @@
-[![Travis Status](https://travis-ci.org/josch/img2pdf.svg?branch=master)](https://travis-ci.org/josch/img2pdf)
-[![Appveyor Status](https://ci.appveyor.com/api/projects/status/2kws3wkqvi526llj/branch/master?svg=true)](https://ci.appveyor.com/project/josch/img2pdf/branch/master)
+[![Travis Status](https://travis-ci.com/josch/img2pdf.svg?branch=main)](https://app.travis-ci.com/josch/img2pdf)
+[![Appveyor Status](https://ci.appveyor.com/api/projects/status/2kws3wkqvi526llj/branch/main?svg=true)](https://ci.appveyor.com/project/josch/img2pdf/branch/main)
 
 img2pdf
 =======

src/img2pdf_test.py

@@ -20,6 +20,21 @@ import warnings
 import json
 import pathlib
 
+ICC_PROFILE = None
+ICC_PROFILE_PATHS = (
+        # Debian
+        "/usr/share/color/icc/ghostscript/srgb.icc",
+        # Fedora
+        "/usr/share/ghostscript/iccprofiles/srgb.icc",
+        # Archlinux and Gentoo
+        "/usr/share/ghostscript/*/iccprofiles/srgb.icc",
+)
+for glob in ICC_PROFILE_PATHS:
+    for path in pathlib.Path("/").glob(glob.lstrip("/")):
+        if path.is_file():
+            ICC_PROFILE = path
+            break
+
 HAVE_MUTOOL = True
 try:
     ver = subprocess.check_output(["mutool", "-v"], stderr=subprocess.STDOUT)
@@ -304,11 +319,9 @@ def compare(im1, im2, exact, icc, cmyk):
     else:
         iccargs = []
         if icc:
-            profile = "/usr/share/color/icc/sRGB.icc"
-            if not os.path.isfile(profile):
-                warnings.warn(profile + " not present, skipping checks...")
-                return
-            iccargs = ["-profile", profile]
+            if ICC_PROFILE is None:
+                pytest.skip("Could not locate an ICC profile")
+            iccargs = ["-profile", ICC_PROFILE]
         psnr = subprocess.run(
             ["compare"]
             + iccargs
@@ -421,10 +434,8 @@ def compare_pdfimages_png(tmpdir, img, pdf, exact=True, icc=False):
         )
     else:
         if icc:
-            profile = "/usr/share/color/icc/ghostscript/srgb.icc"
-            if not os.path.isfile(profile):
-                warnings.warn(profile + " not present, skipping checks...")
-                return
+            if ICC_PROFILE is None:
+                pytest.skip("Could not locate an ICC profile")
             psnr = subprocess.run(
                 [
                     "compare",
@@ -432,7 +443,7 @@ def compare_pdfimages_png(tmpdir, img, pdf, exact=True, icc=False):
                     "PSNR",
                     "(",
                     "-profile",
-                    profile,
+                    ICC_PROFILE,
                     "-depth",
                     "8",
                     str(img),
@@ -1154,7 +1165,6 @@ def png_rgb8_img(tmp_normal_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("png:IHDR.bit-depth-orig") == "8"
     ), str(identify)
@@ -1204,7 +1214,6 @@ def png_rgb16_img(tmp_normal16_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("png:IHDR.bit-depth-orig")
         == "16"
@@ -1258,7 +1267,6 @@ def png_rgba8_img(tmp_path_factory, tmp_alpha_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("png:IHDR.bit-depth-orig") == "8"
     ), str(identify)
@@ -1309,7 +1317,6 @@ def png_rgba16_img(tmp_alpha_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("png:IHDR.bit-depth-orig")
         == "16"
@@ -1376,7 +1383,6 @@ def png_gray8a_img(tmp_path_factory, tmp_alpha_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("png:IHDR.bit-depth-orig") == "8"
     ), str(identify)
@@ -1439,7 +1445,6 @@ def png_gray16a_img(tmp_path_factory, tmp_alpha_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("png:IHDR.bit-depth-orig")
         == "16"
@@ -1494,7 +1499,6 @@ def png_interlaced_img(tmp_path_factory, tmp_normal_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("png:IHDR.bit-depth-orig") == "8"
     ), str(identify)
@@ -1546,7 +1550,6 @@ def png_gray1_img(tmp_path_factory, tmp_gray1_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("png:IHDR.bit-depth-orig") == "1"
     ), str(identify)
@@ -1597,7 +1600,6 @@ def png_gray2_img(tmp_path_factory, tmp_gray2_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("png:IHDR.bit-depth-orig") == "2"
     ), str(identify)
@@ -1648,7 +1650,6 @@ def png_gray4_img(tmp_path_factory, tmp_gray4_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("png:IHDR.bit-depth-orig") == "4"
     ), str(identify)
@@ -1699,7 +1700,6 @@ def png_gray8_img(tmp_path_factory, tmp_gray8_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("png:IHDR.bit-depth-orig") == "8"
     ), str(identify)
@@ -1750,7 +1750,6 @@ def png_gray16_img(tmp_path_factory, tmp_gray16_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("png:IHDR.bit-depth-orig")
         == "16"
@@ -1802,7 +1801,6 @@ def png_palette1_img(tmp_path_factory, tmp_palette1_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("png:IHDR.bit-depth-orig") == "1"
     ), str(identify)
@@ -1853,7 +1851,6 @@ def png_palette2_img(tmp_path_factory, tmp_palette2_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("png:IHDR.bit-depth-orig") == "2"
     ), str(identify)
@@ -1904,7 +1901,6 @@ def png_palette4_img(tmp_path_factory, tmp_palette4_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("png:IHDR.bit-depth-orig") == "4"
     ), str(identify)
@@ -1955,7 +1951,6 @@ def png_palette8_img(tmp_path_factory, tmp_palette8_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("png:IHDR.bit-depth-orig") == "8"
     ), str(identify)
@@ -2265,7 +2260,6 @@ def tiff_float_img(tmp_path_factory, tmp_normal_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("quantum:format")
         == "floating-point"
@@ -2318,7 +2312,6 @@ def tiff_cmyk8_img(tmp_path_factory, tmp_normal_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("tiff:alpha") == "unspecified"
     ), str(identify)
@@ -2376,7 +2369,6 @@ def tiff_cmyk16_img(tmp_path_factory, tmp_normal_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("tiff:alpha") == "unspecified"
     ), str(identify)
@@ -2424,7 +2416,6 @@ def tiff_rgb8_img(tmp_path_factory, tmp_normal_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("tiff:alpha") == "unspecified"
     ), str(identify)
@@ -2477,7 +2468,6 @@ def tiff_rgb12_img(tmp_path_factory, tmp_normal16_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("tiff:alpha") == "unspecified"
     ), str(identify)
@@ -2530,7 +2520,6 @@ def tiff_rgb14_img(tmp_path_factory, tmp_normal16_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("tiff:alpha") == "unspecified"
     ), str(identify)
@@ -2579,7 +2568,6 @@ def tiff_rgb16_img(tmp_path_factory, tmp_normal16_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("tiff:alpha") == "unspecified"
     ), str(identify)
@@ -2628,7 +2616,6 @@ def tiff_rgba8_img(tmp_path_factory, tmp_alpha_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("tiff:alpha") == "unassociated"
     ), str(identify)
@@ -2677,7 +2664,6 @@ def tiff_rgba16_img(tmp_path_factory, tmp_alpha_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("tiff:alpha") == "unassociated"
     ), str(identify)
@@ -2724,7 +2710,6 @@ def tiff_gray1_img(tmp_path_factory, tmp_gray1_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("tiff:alpha") == "unspecified"
     ), str(identify)
@@ -2772,7 +2757,6 @@ def tiff_gray2_img(tmp_path_factory, tmp_gray2_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("tiff:alpha") == "unspecified"
     ), str(identify)
@@ -2820,7 +2804,6 @@ def tiff_gray4_img(tmp_path_factory, tmp_gray4_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("tiff:alpha") == "unspecified"
     ), str(identify)
@@ -2868,7 +2851,6 @@ def tiff_gray8_img(tmp_path_factory, tmp_gray8_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("tiff:alpha") == "unspecified"
     ), str(identify)
@@ -2916,7 +2898,6 @@ def tiff_gray16_img(tmp_path_factory, tmp_gray16_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("tiff:alpha") == "unspecified"
     ), str(identify)
@@ -2968,7 +2949,6 @@ def tiff_multipage_img(tmp_path_factory, tmp_normal_png, tmp_inverse_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("tiff:alpha") == "unspecified"
     ), str(identify)
@@ -3009,7 +2989,6 @@ def tiff_multipage_img(tmp_path_factory, tmp_normal_png, tmp_inverse_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("tiff:alpha") == "unspecified"
     ), str(identify)
@@ -3059,7 +3038,6 @@ def tiff_palette1_img(tmp_path_factory, tmp_palette1_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("tiff:alpha") == "unspecified"
     ), str(identify)
@@ -3108,7 +3086,6 @@ def tiff_palette2_img(tmp_path_factory, tmp_palette2_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("tiff:alpha") == "unspecified"
     ), str(identify)
@@ -3157,7 +3134,6 @@ def tiff_palette4_img(tmp_path_factory, tmp_palette4_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("tiff:alpha") == "unspecified"
     ), str(identify)
@@ -3205,7 +3181,6 @@ def tiff_palette8_img(tmp_path_factory, tmp_palette8_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("tiff:alpha") == "unspecified"
     ), str(identify)
@@ -3735,7 +3710,6 @@ def png_icc_img(tmp_icc_png):
         "x": 0,
         "y": 0,
     }, str(identify)
-    assert identify[0]["image"].get("compression") == "Zip", str(identify)
     assert (
         identify[0]["image"].get("properties", {}).get("png:IHDR.bit-depth-orig") == "8"
     ), str(identify)