New distribution format (TTC, help, extras)

- uses TTC bundle for static fonts (#388)
- second zip archive used for "extras", with individiual static font files
- new help documentation, replacing all .txt files of past distributions

9 files changed, 222 insertions, 359 deletions

diff --git a/misc/dist/about hinted fonts.txt b/misc/dist/about hinted fonts.txt
deleted file mode 100644
index 610de8880..000000000
--- a/misc/dist/about hinted fonts.txt
+++ /dev/null
@@ -1,24 +0,0 @@
-
-Inter font files comes in two versions: without TrueType hints
-and "hinted"; with TrueType hints. This directory contains font files with
-TrueType hints for use with ClearType and other compatible shapers.
-
-Hinted fonts looks different than unhinted fonts, especially at small sizes.
-Before deciding to use these hinted fonts, consider the differences in
-appearance compared to the regular fonts — you may prefer unhinted fonts for
-some uses.
-
-
------------------------------------------------------------------------------
-What are hints?
-
-
-The TrueType hints are used by ClearType on Windows machines where ClearType
-is enabled. This usually changes the appearance of the fonts and can in some
-cases increase the legibility of text.
-
-Additionally, hints are little computer programs that takes up considerable
-disk space, meaning that font files with hints are larger than those without
-hints. This might be a consideration when using web fonts.
-
-The hints for Inter are automatically generated by a program called autohint.
diff --git a/misc/dist/extras-readme.txt b/misc/dist/extras-readme.txt
new file mode 100644
index 000000000..6da5f1a8e
--- /dev/null
+++ b/misc/dist/extras-readme.txt
@@ -0,0 +1,10 @@
+Inter extras
+
+This directory contains some additional "bonus" content.
+
+If you are looking for the actual font files to install and use,
+please download the main release from:
+
+  https://rsms.me/inter/download/
+
+Learn more about Inter at https://rsms.me/inter/
diff --git a/misc/dist/help.txt b/misc/dist/help.txt
new file mode 100644
index 000000000..acc9f4de9
--- /dev/null
+++ b/misc/dist/help.txt
@@ -0,0 +1,182 @@
+Installing & using the Inter fonts
+
+Contents:
+  1.   Installing font files
+  1.1. Installing on Apple macOS
+  1.2. Installing on Microsoft Windows
+  1.3. Installing on Ubuntu Linux
+  2.   Using Inter in Web content
+  3.   Hinted TrueType fonts (Inter TrueType.ttc)
+  4.   Extras
+  5.   License (can I use Inter for x?)
+
+File index:
+  Inter.ttc            Complete font family (CFF1)
+  Inter Variable*.ttf  Complete font family (Variable TrueType)
+  Inter TrueType.ttc   Complete font family (TrueType, with TT hints)
+  Web/*                Web fonts and CSS
+
+---------------------------------------------------------------------
+
+1. Installing font files
+
+  Inter fonts comes in two flavors:
+  Variable (Inter Variable*.ttf) and Static (Inter.ttc).
+
+  Variable fonts allow you to choose any weight and optical size in
+  supported software. Variable fonts is a relatively recent new
+  technology, with varying degrees of software support.
+  Inter's variable font is called "Inter Variable" to avoid
+  confusion and to allow use alongside the traditional static fonts.
+
+  Static fonts works with older software and uses a fixed set of
+  predefined mixtures of weight and optical size. For example
+  "Inter Display Medium" is Inter with maximum optical size and a
+  weight of 500.
+
+  You will be installing both of these flavors.
+
+
+1.1. Installing on Apple macOS
+
+  1. Open the "Font Book" application.
+  2. In the main menu, select "File" → "Add Fonts..."
+  3. Select "Inter.ttc", "Inter Variable.ttf" and
+     "Inter Variable Italic.ttf", then press "Open"
+
+  Alternatively, if you prefer not to use Font Book, you can move or
+  copy the font files directly into ~/Library/Fonts/
+
+
+1.2. Installing on Microsoft Windows
+
+  1. Open the zip file you downloaded
+  2. Select the files "Inter TrueType.ttc", "Inter Variable.ttf" and
+     "Inter Variable Italic.ttf"
+  3. Right-click the selected files, choose "Install for all users"
+
+  If you have a previous installation of Inter, you should make sure
+  to remove those fonts files before installing new ones. You need to
+  install the font for all users, as some software requires fonts to
+  be global.
+
+
+1.3. Installing on Ubuntu Linux
+
+  1. Create a ".fonts" directory in your home. (mkdir -p ~/.fonts)
+  2. Copy "Inter.ttc", "Inter Variable.ttf" and
+     "Inter Variable Italic.ttf" into your .fonts directory
+     (cp Inter.ttc *.ttf ~/.fonts/)
+
+  If you prefer the look of Microsoft ClearType-style "hinted" fonts,
+  for step 2, install "Inter TrueType.ttc" (INSTEAD OF "Inter.ttc".)
+
+  You may have to restart apps and/or your window server session.
+
+---------------------------------------------------------------------
+
+2. Using Inter in Web content
+
+  1. Copy all woff2 files and the inter.css file from the "Web"
+     directory to your web server
+
+  2. Add the following into your HTML <head>:
+
+       <link rel="preconnect" href="https://your-domain/">
+       <link rel="stylesheet" href="https://your-domain/inter.css">
+
+     Replace "your-domain" with the actual domain name where you host
+     the woff2 font files.
+
+  3. If you are using a CDN, disable any automatic compression for
+     the woff2 files (they are already compressed) and set the
+     following HTTP headers for the woff2 files:
+
+       Content-Type: font/woff2
+       Cache-Control: max-age=31536000
+
+     The CSS contains specific version information in the URLs used
+     to load the fonts, so this is safe for upgrading to newer
+     versions of Inter.
+
+  4. In your main document's CSS, add the following to use Inter:
+
+       :root { font-family: 'Inter', sans-serif; }
+       @supports (font-variation-settings: normal) {
+         :root { font-family: 'Inter var', sans-serif; }
+       }
+
+  There are many other ways of using Inter on the Web platform.
+  The instructions above is simply one way.
+
+  If you prefer to not host the fonts yourself, you can use the
+  official Inter CDN, which as a bonus means you are always serving
+  the latest version of Inter to your users:
+
+    <link rel="preconnect" href="https://rsms.me/">
+    <link rel="stylesheet" href="https://rsms.me/inter/inter.css">
+
+---------------------------------------------------------------------
+
+3. Hinted TrueType fonts (Inter TrueType.ttc)
+
+  This distribution contains TrueType fonts with hints (the programs
+  needed by ClearType) in a separate font bundle "Inter TrueType.ttc"
+
+  Microsoft Windows uses a technology called ClearType which alters
+  the shape of letters to increase sharpness, in particular for low-
+  density displays. This requires a font to have little programs
+  built into them, called TrueType hinting instructions, which lets
+  ClearType knows how to alter each character.
+  The standard distribution of Inter doesn't contain such "hints"
+  since it is relatively rare (and the web fonts would grow much
+  larger if they did contain such hinting programs.)
+  Additionally, some people on Windows do not like the appearance of
+  ClearType and prefer non-hinted fonts. (Tip: You can customize
+  ClearType to your liking in Window's settings.)
+
+  The variable font is currently not available with TrueType hints,
+  only the traditional "static" font files are. This will hopefully
+  change in a future release.
+
+  Important: DO NOT INSTALL BOTH VERSIONS!
+
+    DO NOT install both "Inter.ttc" and "Inter TrueType.ttc".
+    DO install ONE OF those font files,
+    or else confusing, strange things might happen (conflicts.)
+
+  Recap:
+  - If you want to make use of ClearType, install "Inter TrueType.ttc"
+  - If you do not want or need ClearType support, install "Inter.ttc"
+
+---------------------------------------------------------------------
+
+4. Extras
+
+  There's a separate zip file, available from the URL below, which
+  contains some additional content, like individual otf & ttf files.
+
+  Get a copy at:  https://github.com/rsms/inter/releases/latest
+
+---------------------------------------------------------------------
+
+5. License (can I use Inter for x?)
+
+  Inter is a completely free-to-use typeface, including commercial
+  use. It is licensed under the SIL Open Font License 1.1, which
+  you have received a copy of in the separate file LICENSE.txt
+
+  Here is a brief outline of permissions, limitations and conditions:
+
+    Permissions            Limitations         Conditions
+    - Private use          - No liability      - License & copyright
+    - Commercial use       - No warranty       - Same license
+    - Modification
+    - Distribution
+
+  Please read the complete LICENSE.txt carefully!
+
+
+---------------------------------------------------------------------
+
+Learn more about Inter at https://rsms.me/inter/
diff --git a/misc/dist/install-linux.txt b/misc/dist/install-linux.txt
deleted file mode 100644
index d04e35b35..000000000
--- a/misc/dist/install-linux.txt
+++ /dev/null
@@ -1,32 +0,0 @@
-
-Installing on Linux:
-
-There are many different Linux distributions and some handle font management
-differently. These instructions are for the most common Linux distributions:
-
-1. Create a folder called ".fonts" in your home directory.
-   Example: mkdir -p ~/.fonts
-
-2. Copy the otf files in the "Desktop" folder into your .fonts directory
-   Example: cp "Desktop"/*.otf ~/.fonts/
-
-You may have to restart apps and/or your window server session.
-
-Again, these instructions are for the most common Linux distributuons like
-Ubuntu and might not apply to you. Refer to the documentation for your
-distribution for more details on how to manage fonts in your OS.
-
-
-Q&A
-
-Q: I installed the fonts but they don't show up
-A: Try rebuilding the font database:
-   sudo fc-cache -f -v
-   Then restart your program(s).
-
-Q: Is there a way to tell if Inter was actually installed?
-A: Try running: fc-list | grep "Inter"
-
-Q: ~/.fonts is an old thing. The new thing is ~/.local/share/fonts
-A: Yes, that is true for recent distributions. These distros usually support
-   ~/.fonts as well making these instructions work for everyone. Yay.
diff --git a/misc/dist/install-mac.txt b/misc/dist/install-mac.txt
deleted file mode 100644
index f68ea93c5..000000000
--- a/misc/dist/install-mac.txt
+++ /dev/null
@@ -1,18 +0,0 @@
-
-Installing font files on macOS
-
-
-Using Font Book:
-
-1. Open the "Font Book" application.
-2. In the main menu, select File, then Add Fonts...
-3. Find the "Desktop" folder, select the folder (or open the folder and
-   select all the files inside the folder) and press the Open button.
-
-
-Using Finder:
-
-1. Copy the files in the "Desktop" folder
-2. Press cmd-shift-G in Finder and go to: ~/Library/Fonts
-3. Delete any existing "Inter" files and folders
-4. Paste the copied files
diff --git a/misc/dist/install-win.txt b/misc/dist/install-win.txt
deleted file mode 100644
index b1c757a11..000000000
--- a/misc/dist/install-win.txt
+++ /dev/null
@@ -1,24 +0,0 @@
-
-Installing on Windows 10:
-
-1. Copy the "Desktop" folder in the zip file to your Desktop.
-2. Open the "Desktop" folder on your Desktop.
-4. Select all font files.
-5. Right-click the selected files and choose "Install for all users".
-
-If you have a previous installation of Inter, you should make sure
-to remove those fonts files before installing new ones. You need to
-install the font for all users, as some software requires fonts to be
-global.
-
-
-ClearType-hinted fonts
-
-Inter also comes with a version that has TrueType hints used by ClearType
-on Windows. This changes the appearance of the fonts when rendered on a
-system with ClearType enabled and can in some cases increase the legibility
-of text. However, the hints for Inter are automatically generated and are
-not always a good thing.
-
-If you do prefer to use the version with hints, use the font files in the
-"Desktop with TrueType hints" folder instead of "Desktop".
diff --git a/misc/dist/inter-display.css b/misc/dist/inter-display.css
deleted file mode 100644
index 6e505ce3a..000000000
--- a/misc/dist/inter-display.css
+++ /dev/null
@@ -1,200 +0,0 @@
-@font-face {
-  font-family: 'InterDisplay';
-  font-style:  normal;
-  font-weight: 100;
-  font-display: swap;
-  src: url("InterDisplay-Thin.woff2?v=3.12") format("woff2"),
-       url("InterDisplay-Thin.woff?v=3.12") format("woff");
-}
-@font-face {
-  font-family: 'InterDisplay';
-  font-style:  italic;
-  font-weight: 100;
-  font-display: swap;
-  src: url("InterDisplay-ThinItalic.woff2?v=3.12") format("woff2"),
-       url("InterDisplay-ThinItalic.woff?v=3.12") format("woff");
-}
-
-@font-face {
-  font-family: 'InterDisplay';
-  font-style:  normal;
-  font-weight: 200;
-  font-display: swap;
-  src: url("InterDisplay-ExtraLight.woff2?v=3.12") format("woff2"),
-       url("InterDisplay-ExtraLight.woff?v=3.12") format("woff");
-}
-@font-face {
-  font-family: 'InterDisplay';
-  font-style:  italic;
-  font-weight: 200;
-  font-display: swap;
-  src: url("InterDisplay-ExtraLightItalic.woff2?v=3.12") format("woff2"),
-       url("InterDisplay-ExtraLightItalic.woff?v=3.12") format("woff");
-}
-
-@font-face {
-  font-family: 'InterDisplay';
-  font-style:  normal;
-  font-weight: 300;
-  font-display: swap;
-  src: url("InterDisplay-Light.woff2?v=3.12") format("woff2"),
-       url("InterDisplay-Light.woff?v=3.12") format("woff");
-}
-@font-face {
-  font-family: 'InterDisplay';
-  font-style:  italic;
-  font-weight: 300;
-  font-display: swap;
-  src: url("InterDisplay-LightItalic.woff2?v=3.12") format("woff2"),
-       url("InterDisplay-LightItalic.woff?v=3.12") format("woff");
-}
-
-@font-face {
-  font-family: 'InterDisplay';
-  font-style:  normal;
-  font-weight: 400;
-  font-display: swap;
-  src: url("InterDisplay-Regular.woff2?v=3.12") format("woff2"),
-       url("InterDisplay-Regular.woff?v=3.12") format("woff");
-}
-@font-face {
-  font-family: 'InterDisplay';
-  font-style:  italic;
-  font-weight: 400;
-  font-display: swap;
-  src: url("InterDisplay-Italic.woff2?v=3.12") format("woff2"),
-       url("InterDisplay-Italic.woff?v=3.12") format("woff");
-}
-
-@font-face {
-  font-family: 'InterDisplay';
-  font-style:  normal;
-  font-weight: 500;
-  font-display: swap;
-  src: url("InterDisplay-Medium.woff2?v=3.12") format("woff2"),
-       url("InterDisplay-Medium.woff?v=3.12") format("woff");
-}
-@font-face {
-  font-family: 'InterDisplay';
-  font-style:  italic;
-  font-weight: 500;
-  font-display: swap;
-  src: url("InterDisplay-MediumItalic.woff2?v=3.12") format("woff2"),
-       url("InterDisplay-MediumItalic.woff?v=3.12") format("woff");
-}
-
-@font-face {
-  font-family: 'InterDisplay';
-  font-style:  normal;
-  font-weight: 600;
-  font-display: swap;
-  src: url("InterDisplay-SemiBold.woff2?v=3.12") format("woff2"),
-       url("InterDisplay-SemiBold.woff?v=3.12") format("woff");
-}
-@font-face {
-  font-family: 'InterDisplay';
-  font-style:  italic;
-  font-weight: 600;
-  font-display: swap;
-  src: url("InterDisplay-SemiBoldItalic.woff2?v=3.12") format("woff2"),
-       url("InterDisplay-SemiBoldItalic.woff?v=3.12") format("woff");
-}
-
-@font-face {
-  font-family: 'InterDisplay';
-  font-style:  normal;
-  font-weight: 700;
-  font-display: swap;
-  src: url("InterDisplay-Bold.woff2?v=3.12") format("woff2"),
-       url("InterDisplay-Bold.woff?v=3.12") format("woff");
-}
-@font-face {
-  font-family: 'InterDisplay';
-  font-style:  italic;
-  font-weight: 700;
-  font-display: swap;
-  src: url("InterDisplay-BoldItalic.woff2?v=3.12") format("woff2"),
-       url("InterDisplay-BoldItalic.woff?v=3.12") format("woff");
-}
-
-@font-face {
-  font-family: 'InterDisplay';
-  font-style:  normal;
-  font-weight: 800;
-  font-display: swap;
-  src: url("InterDisplay-ExtraBold.woff2?v=3.12") format("woff2"),
-       url("InterDisplay-ExtraBold.woff?v=3.12") format("woff");
-}
-@font-face {
-  font-family: 'InterDisplay';
-  font-style:  italic;
-  font-weight: 800;
-  font-display: swap;
-  src: url("InterDisplay-ExtraBoldItalic.woff2?v=3.12") format("woff2"),
-       url("InterDisplay-ExtraBoldItalic.woff?v=3.12") format("woff");
-}
-
-@font-face {
-  font-family: 'InterDisplay';
-  font-style:  normal;
-  font-weight: 900;
-  font-display: swap;
-  src: url("InterDisplay-Black.woff2?v=3.12") format("woff2"),
-       url("InterDisplay-Black.woff?v=3.12") format("woff");
-}
-@font-face {
-  font-family: 'InterDisplay';
-  font-style:  italic;
-  font-weight: 900;
-  font-display: swap;
-  src: url("InterDisplay-BlackItalic.woff2?v=3.12") format("woff2"),
-       url("InterDisplay-BlackItalic.woff?v=3.12") format("woff");
-}
-
-/* -------------------------------------------------------
-Variable font.
-Usage:
-
-  html { font-family: 'InterDisplay', sans-serif; }
-  @supports (font-variation-settings: normal) {
-    html { font-family: 'InterDisplay var', sans-serif; }
-  }
-*/
-@font-face {
-  font-family: 'InterDisplay var';
-  font-weight: 100 900;
-  font-display: swap;
-  font-style: normal;
-  font-named-instance: 'Regular';
-  src: url("InterDisplay-roman.var.woff2?v=3.12") format("woff2");
-}
-@font-face {
-  font-family: 'InterDisplay var';
-  font-weight: 100 900;
-  font-display: swap;
-  font-style: italic;
-  font-named-instance: 'Italic';
-  src: url("InterDisplay-italic.var.woff2?v=3.12") format("woff2");
-}
-
-
-/* --------------------------------------------------------------------------
-[EXPERIMENTAL] Multi-axis, single variable font.
-
-Slant axis is not yet widely supported (as of February 2019) and thus this
-multi-axis single variable font is opt-in rather than the default.
-
-When using this, you will probably need to set font-variation-settings
-explicitly, e.g.
-
-  * { font-variation-settings: "slnt" 0deg }
-  .italic { font-variation-settings: "slnt" 10deg }
-
-*/
-@font-face {
-  font-family: 'InterDisplay var experimental';
-  font-weight: 100 900;
-  font-display: swap;
-  font-style: oblique 0deg 10deg;
-  src: url("InterDisplay.var.woff2?v=3.12") format("woff2");
-}
diff --git a/misc/dist/variable.txt b/misc/dist/variable.txt
deleted file mode 100644
index 0d60213b1..000000000
--- a/misc/dist/variable.txt
+++ /dev/null
@@ -1,18 +0,0 @@
-
-There are two flavors of variable Inter to choose from:
-
-- Inter.var.ttf & Inter-Italic.var.ttf
-  Family called "Inter"
-
-- InterV.var.ttf & InterV-Italic.var.ttf
-  Family called "Inter V" which is identical to "Inter" with the family
-  name as the only exception.
-  Useful when you want to install traditional static font files alongside
-  the variable version.
-
-Note that variable fonts is relatively new technology, with varying
-degrees of support in operating systems, web browsers and apps.
-
-If you're in doubt or uncertain about variable fonts, then you probably
-don't need to use a variable font. Instead, install the fonts in the
-"Desktop" folder.
diff --git a/misc/makezip2.sh b/misc/makezip2.sh
index 395b24d9e..b5b73200c 100644
--- a/misc/makezip2.sh
+++ b/misc/makezip2.sh
@@ -2,42 +2,38 @@
 set -e
 cd "$(dirname "$0")/.."
 
-OPT_HELP=false
+OPT_HELP=
 OPT_REVEAL_IN_FINDER=false
+OPT_EXTRAS=false
 OUTFILE=
 
 # parse args
 while [[ $# -gt 0 ]]; do
   case "$1" in
-  -h*|--h*)
-    OPT_HELP=true
-    shift
-    ;;
-  -reveal-in-finder)
-    [ "$(uname -s)" = Darwin ] && OPT_REVEAL_IN_FINDER=true
-    shift
-    ;;
+  -h|-help|--help)   OPT_HELP=0; shift;;
+  -reveal-in-finder) OPT_REVEAL_IN_FINDER=true; shift;;
+  -extras|--extras)  OPT_EXTRAS=true; shift;;
   -*)
     echo "$0: Unknown option $1" >&2
-    OPT_HELP=true
+    OPT_HELP=1
     shift
     ;;
   *)
     if [[ "$OUTFILE" != "" ]] && ! $OPT_HELP; then
       echo "$0: Extra unexpected argument(s) after <outfile>" >&2
-      OPT_HELP=true
+      OPT_HELP=1
     fi
     OUTFILE=$1
     shift
     ;;
   esac
 done
-if $OPT_HELP; then
+if [ -n "$OPT_HELP" ]; then
   echo "Usage: $0 [options] <outfile>"
   echo "Options:"
   echo "  -h, -help          Show help."
   echo "  -reveal-in-finder  After creating the zip file, show it in Finder"
-  exit 1
+  exit $OPT_HELP
 fi
 
 # tmp dir
@@ -51,52 +47,43 @@ if [[ "$OUTFILE_ABS" != /* ]]; then
 fi
 
 # cleanup any previous build
-rm -rf "$ZIPDIR"
-rm -f  build/tmp/a.zip
+rm -rf "$ZIPDIR" build/tmp/a.zip
 
 # create directories
-mkdir -p \
-  "$ZIPDIR/Desktop" \
-  "$ZIPDIR/Desktop with TrueType hints" \
-  "$ZIPDIR/Variable" \
-  "$ZIPDIR/Web"
-
-# copy font files
-# ----------------------------------------------------------------------------
+mkdir -p "$(dirname "$OUTFILE_ABS")" "$ZIPDIR"
 
-# Desktop
-cp $FONTDIR/static/Inter-*.otf         "$ZIPDIR/Desktop/" &
+cp LICENSE.txt "$ZIPDIR/LICENSE.txt"
 
-# Hinted for Windows
-cp "misc/dist/about hinted fonts.txt"  "$ZIPDIR/Desktop with TrueType hints/" &
-cp $FONTDIR/static-hinted/Inter-*.ttf  "$ZIPDIR/Desktop with TrueType hints/" &
+if $OPT_EXTRAS; then
+  mkdir -p "$ZIPDIR/OTF" "$ZIPDIR/TTF"
 
-# Variable ("Inter" and "Inter V")
-cp $FONTDIR/var/Inter*.var.ttf         "$ZIPDIR/Variable/" &
+  cp misc/dist/extras-readme.txt           "$ZIPDIR/README.txt"
+  cp build/fonts/static/Inter-*.otf        "$ZIPDIR/OTF/" &
+  cp build/fonts/static-hinted/Inter-*.ttf "$ZIPDIR/TTF/" &
+else
+  mkdir -p "$ZIPDIR/Web"
 
-# Web
-cp $FONTDIR/static/Inter-*.woff*       "$ZIPDIR/Web/" &
-cp $FONTDIR/var/Inter.var.woff2        "$ZIPDIR/Web/" &
-cp $FONTDIR/var/Inter-Italic.var.woff2 "$ZIPDIR/Web/" &
-cp misc/dist/inter.css                 "$ZIPDIR/Web/" &
+  cp misc/dist/help.txt                           "$ZIPDIR/help.txt"
+  cp build/fonts/static/Inter.ttc                 "$ZIPDIR/Inter.ttc"
+  cp build/fonts/static-hinted/Inter-truetype.ttc "$ZIPDIR/Inter TrueType.ttc"
+  cp build/fonts/var/InterV.var.ttf               "$ZIPDIR/Inter Variable.ttf"
+  cp build/fonts/var/InterV-Italic.var.ttf        "$ZIPDIR/Inter Variable Italic.ttf"
 
-# ----------------------------------------------------------------------------
+  cp build/fonts/static/Inter-*.woff2 \
+     build/fonts/var/Inter.var.woff2 \
+     build/fonts/var/Inter-Italic.var.woff2 \
+     misc/dist/inter.css                       "$ZIPDIR/Web/" &
+fi
 
-# copy misc stuff
-cp misc/dist/install*.txt        "$ZIPDIR/"
-cp LICENSE.txt                   "$ZIPDIR/"
 mkdir -p "$(dirname "$OUTFILE_ABS")"
-
-# wait for processes to finish
 wait
 
-# zip
 pushd "$ZIPDIR" >/dev/null
 zip -q -X -r "$OUTFILE_ABS" *
 popd >/dev/null
 rm -rf "$ZIPDIR"
 
 echo "Created $OUTFILE"
-if $OPT_REVEAL_IN_FINDER && [ -f /usr/bin/open ]; then
+if $OPT_REVEAL_IN_FINDER && [ "$(uname -s)" = Darwin ] && [ -f /usr/bin/open ]; then
   /usr/bin/open --reveal "$OUTFILE"
 fi