[3/9] Add has-spdx-header.sh script

  Add a script to detect if a file has a SPDX header and what the
advertised license is.

	   * relicensing-scripts/has-spdx-header.sh: New script.

Signed-off-by: Dodji Seketeli <dodji@redhat.com>
---
 relicensing-scripts/has-spdx-header.sh | 102 +++++++++++++++++++++++++++++++++
 1 file changed, 102 insertions(+)
 create mode 100755 relicensing-scripts/has-spdx-header.sh
  

Do I really need to reply to all 9 patches and sign off on them?

That means I have to actually review things like the script below,
which isn't code I've contributed to, so I have no concerns about you
adding this script under whatever license you want.

But since you asked for it ...


On 10/07/20 16:07 +0200, Dodji Seketeli wrote:
>Add a script to detect if a file has a SPDX header and what the
>advertised license is.
>
>	   * relicensing-scripts/has-spdx-header.sh: New script.
>
>Signed-off-by: Dodji Seketeli <dodji@redhat.com>
>---
> relicensing-scripts/has-spdx-header.sh | 102 +++++++++++++++++++++++++++++++++
> 1 file changed, 102 insertions(+)
> create mode 100755 relicensing-scripts/has-spdx-header.sh
>
>diff --git a/relicensing-scripts/has-spdx-header.sh b/relicensing-scripts/has-spdx-header.sh
>new file mode 100755
>index 0000000..c2b0eca
>--- /dev/null
>+++ b/relicensing-scripts/has-spdx-header.sh
>@@ -0,0 +1,102 @@
>+#!/bin/sh
>+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
>+# Author: Dodji Seketeli <dodji@redhat.com>
>+
>+file=
>+prog=$0
>+display_file_name=
>+be_quiet=
>+show_no_spdx=
>+
>+display_usage()
>+{
>+    echo "$prog: [options] file"
>+    echo "  where options can be:"
>+    echo "   -h|--help		display this help"
>+    echo "   -f|--file		prefix output with file name"
>+    echo "   -q|--quiet		emit no output if no license was found"
>+    echo "   --show-no-spdx	show file name if it has no spdx header"
>+}
>+
>+emit_output_no_license()
>+{
>+    if test x$show_no_spdx != x; then
>+	echo $display_file_name
>+    elif test x$be_quiet = x; then
>+	if test "x$display_file_name" = x; then
>+	    echo "NO-LICENSE"
>+	else
>+	    echo "$display_file_name: NO-LICENSE"
>+	fi
>+    fi
>+
>+    exit 1
>+}
>+
>+emit_output_with_license()
>+{
>+    license=$1
>+    if test x$show_no_spdx != x; then
>+	:
>+    elif test "x$display_file_name" = x; then
>+	echo "$license"
>+    else
>+	echo "$display_file_name: $license"
>+    fi
>+    exit 0
>+}
>+
>+main()
>+{
>+    header=$(head --lines=5 $file | grep "SPDX-License-Identifier:")
>+    if test "x$header" != x; then
>+	license=$(echo "$header" | sed -r "s/^.*(SPDX-License-Identifier:)[ 	]*([^*/]+).*$/\2/")
>+    fi

The separate grep seems unnecessary.

license=$(head --lines=5 $file | sed -n -E "s/^.*(SPDX-License-Identifier:)[ 	]*([^*/]+).*$/\2/p")

The -E option is the POSIX version of -r.

The -n option and the 'p' suffix means only the matching line will be
printed.

>+
>+    if test "x$license" = x; then
>+	emit_output_no_license
>+    else
>+	emit_output_with_license "$license"
>+    fi
>+}
>+
>+while test $# -ge 1
>+do
>+    case "$1" in
>+	-h|--help)
>+	    display_usage
>+	    exit 1

Shouldn't it exit with status 0 when asked to print the usage?

>+	    ;;
>+
>+	-f|--file)
>+	    if test x$2 = x; then
>+		display_usage

Should usage be printed to stderr when exiting with an error?

>+		exit 1
>+	    fi
>+	    display_file_name=$2
>+	    ;;
>+
>+	-q|--quiet)
>+	    be_quiet=yes
>+	    ;;
>+
>+	--show-no-spdx)
>+	    if test x$2 = x; then
>+		display_usage
>+		exit 1
>+	    fi
>+	    show_no_spdx=yes
>+	    display_file_name=$2
>+	    ;;
>+    esac
>+    shift
>+done
>+
>+if test $# -lt 1; then
>+    display_usage
>+    exit 1
>+fi
>+
>+file=$1
>+
>+main
>-- 
>1.8.3.1
>
>
>-- 
>		Dodji
>
  

Jonathan Wakely <jwakely@redhat.com> writes:

> Do I really need to reply to all 9 patches and sign off on them?

Well, I guess you could have just responded to the cover letter with a
blanket signoff, but I am glad you haven't, since you've caught lots of
issues in your review and I am grateful for that.  Thanks a lot.


[...]


>>+main()
>>+{
>>+    header=$(head --lines=5 $file | grep "SPDX-License-Identifier:")
>>+    if test "x$header" != x; then
>>+	license=$(echo "$header" | sed -r "s/^.*(SPDX-License-Identifier:)[ 	]*([^*/]+).*$/\2/")
>>+    fi
>
> The separate grep seems unnecessary.
>
> license=$(head --lines=5 $file | sed -n -E "s/^.*(SPDX-License-Identifier:)[ 	]*([^*/]+).*$/\2/p")
>
> The -E option is the POSIX version of -r.
>
> The -n option and the 'p' suffix means only the matching line will be
> printed.

You are right.  Fixed.

[...]

>>+
>>+    if test "x$license" = x; then
>>+	emit_output_no_license
>>+    else
>>+	emit_output_with_license "$license"
>>+    fi
>>+}
>>+
>>+while test $# -ge 1
>>+do
>>+    case "$1" in
>>+	-h|--help)
>>+	    display_usage
>>+	    exit 1
>
> Shouldn't it exit with status 0 when asked to print the usage?

Done.

>
>>+	    ;;
>>+
>>+	-f|--file)
>>+	    if test x$2 = x; then
>>+		display_usage
>
> Should usage be printed to stderr when exiting with an error?

Done.

[...]

Here is the updated version of this patch.  It'll be part of the v2 of
the series that I'll be sending out shortly.

Thanks!


From d6822cba1036405e52a4eb6e53394bc46d6a4987 Mon Sep 17 00:00:00 2001
From: Dodji Seketeli <dodji@redhat.com>
Date: Wed, 27 May 2020 18:40:17 +0200
Subject: [PATCH 3/9] Add has-spdx-header.sh script

Add a script to detect if a file has a SPDX header and what the
advertised license is.

	   * relicensing-scripts/has-spdx-header.sh: New script.

Signed-off-by: Dodji Seketeli <dodji@redhat.com>
Signed-off-by: Matthias Maennich <maennich@google.com>
---
 relicensing-scripts/has-spdx-header.sh | 105 +++++++++++++++++++++++++++++++++
 1 file changed, 105 insertions(+)
 create mode 100755 relicensing-scripts/has-spdx-header.sh

diff --git a/relicensing-scripts/has-spdx-header.sh b/relicensing-scripts/has-spdx-header.sh
new file mode 100755
index 0000000..d4b7e08
--- /dev/null
+++ b/relicensing-scripts/has-spdx-header.sh
@@ -0,0 +1,105 @@
+#!/bin/sh
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+# Author: Dodji Seketeli <dodji@redhat.com>
+
+file=
+prog=$0
+display_file_name=
+be_quiet=
+show_no_spdx=
+
+display_usage()
+{
+    echo "$prog: [options] file"
+    echo "  where options can be:"
+    echo "   -h|--help		display this help"
+    echo "   -f|--file		prefix output with file name"
+    echo "   -q|--quiet		emit no output if no license was found"
+    echo "   --show-no-spdx	show file name if it has no spdx header"
+}
+
+emit_output_no_license()
+{
+    if test x$show_no_spdx != x; then
+	echo $display_file_name
+    elif test x$be_quiet = x; then
+	if test "x$display_file_name" = x; then
+	    echo "NO-LICENSE"
+	else
+	    echo "$display_file_name: NO-LICENSE"
+	fi
+    fi
+
+    exit 1
+}
+
+emit_output_with_license()
+{
+    license=$1
+    if test x$show_no_spdx != x; then
+	:
+    elif test "x$display_file_name" = x; then
+	echo "$license"
+    else
+	echo "$display_file_name: $license"
+    fi
+    exit 0
+}
+
+main()
+{
+    license=$(head --lines=5 $file | sed -n -E "s/^.*(SPDX-License-Identifier:)[ 	]*([^*/]+).*$/\2/p")
+
+    if test "x$license" = x; then
+	emit_output_no_license
+    else
+	emit_output_with_license "$license"
+    fi
+}
+
+while test $# -ge 1
+do
+    case "$1" in
+	-h|--help)
+	    display_usage
+	    exit 0
+	    ;;
+
+	-f|--file)
+	    if test x$2 = x; then
+		>&2 display_usage
+		exit 1
+	    fi
+	    display_file_name=$2
+	    shift
+	    ;;
+
+	-q|--quiet)
+	    be_quiet=yes
+	    shift
+	    ;;
+
+	--show-no-spdx)
+	    if test x$2 = x; then
+		>&2 display_usage
+		exit 1
+	    fi
+	    show_no_spdx=yes
+	    display_file_name=$2
+	    shift
+	    ;;
+
+	*)
+	    break
+	    ;;
+    esac
+done
+
+if test $# -lt 1; then
+    >&2 display_usage
+    exit 1
+fi
+
+file=$1
+
+main
  

Hi.

For 3/9, 4/9 and 5/9.

On Mon, 13 Jul 2020 at 12:09, Dodji Seketeli <dodji@redhat.com> wrote:
>
> Jonathan Wakely <jwakely@redhat.com> writes:
>
> > Do I really need to reply to all 9 patches and sign off on them?
>
> Well, I guess you could have just responded to the cover letter with a
> blanket signoff, but I am glad you haven't, since you've caught lots of
> issues in your review and I am grateful for that.  Thanks a lot.
>
>
> [...]
>
>
> >>+main()
> >>+{
> >>+    header=$(head --lines=5 $file | grep "SPDX-License-Identifier:")
> >>+    if test "x$header" != x; then
> >>+     license=$(echo "$header" | sed -r "s/^.*(SPDX-License-Identifier:)[     ]*([^*/]+).*$/\2/")
> >>+    fi
> >
> > The separate grep seems unnecessary.
> >
> > license=$(head --lines=5 $file | sed -n -E "s/^.*(SPDX-License-Identifier:)[  ]*([^*/]+).*$/\2/p")
> >
> > The -E option is the POSIX version of -r.
> >
> > The -n option and the 'p' suffix means only the matching line will be
> > printed.
>
> You are right.  Fixed.
>
> [...]
>
> >>+
> >>+    if test "x$license" = x; then
> >>+     emit_output_no_license
> >>+    else
> >>+     emit_output_with_license "$license"
> >>+    fi
> >>+}
> >>+
> >>+while test $# -ge 1
> >>+do
> >>+    case "$1" in
> >>+     -h|--help)
> >>+         display_usage
> >>+         exit 1
> >
> > Shouldn't it exit with status 0 when asked to print the usage?
>
> Done.
>
> >
> >>+         ;;
> >>+
> >>+     -f|--file)
> >>+         if test x$2 = x; then
> >>+             display_usage
> >
> > Should usage be printed to stderr when exiting with an error?
>
> Done.
>
> [...]
>
> Here is the updated version of this patch.  It'll be part of the v2 of
> the series that I'll be sending out shortly.
>
> Thanks!
>
>
> From d6822cba1036405e52a4eb6e53394bc46d6a4987 Mon Sep 17 00:00:00 2001
> From: Dodji Seketeli <dodji@redhat.com>
> Date: Wed, 27 May 2020 18:40:17 +0200
> Subject: [PATCH 3/9] Add has-spdx-header.sh script
>
> Add a script to detect if a file has a SPDX header and what the
> advertised license is.
>
>            * relicensing-scripts/has-spdx-header.sh: New script.
>
> Signed-off-by: Dodji Seketeli <dodji@redhat.com>
> Signed-off-by: Matthias Maennich <maennich@google.com>
> ---
>  relicensing-scripts/has-spdx-header.sh | 105 +++++++++++++++++++++++++++++++++
>  1 file changed, 105 insertions(+)
>  create mode 100755 relicensing-scripts/has-spdx-header.sh
>
> diff --git a/relicensing-scripts/has-spdx-header.sh b/relicensing-scripts/has-spdx-header.sh
> new file mode 100755
> index 0000000..d4b7e08
> --- /dev/null
> +++ b/relicensing-scripts/has-spdx-header.sh
> @@ -0,0 +1,105 @@
> +#!/bin/sh
> +# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
> +# Author: Dodji Seketeli <dodji@redhat.com>
> +
> +file=
> +prog=$0
> +display_file_name=
> +be_quiet=
> +show_no_spdx=
> +
> +display_usage()
> +{
> +    echo "$prog: [options] file"
> +    echo "  where options can be:"
> +    echo "   -h|--help         display this help"
> +    echo "   -f|--file         prefix output with file name"
> +    echo "   -q|--quiet                emit no output if no license was found"
> +    echo "   --show-no-spdx    show file name if it has no spdx header"
> +}
> +
> +emit_output_no_license()
> +{
> +    if test x$show_no_spdx != x; then
> +       echo $display_file_name
> +    elif test x$be_quiet = x; then
> +       if test "x$display_file_name" = x; then
> +           echo "NO-LICENSE"
> +       else
> +           echo "$display_file_name: NO-LICENSE"
> +       fi
> +    fi
> +
> +    exit 1
> +}
> +
> +emit_output_with_license()
> +{
> +    license=$1
> +    if test x$show_no_spdx != x; then
> +       :
> +    elif test "x$display_file_name" = x; then
> +       echo "$license"
> +    else
> +       echo "$display_file_name: $license"
> +    fi
> +    exit 0
> +}
> +
> +main()
> +{
> +    license=$(head --lines=5 $file | sed -n -E "s/^.*(SPDX-License-Identifier:)[       ]*([^*/]+).*$/\2/p")
> +
> +    if test "x$license" = x; then
> +       emit_output_no_license
> +    else
> +       emit_output_with_license "$license"
> +    fi
> +}
> +
> +while test $# -ge 1
> +do
> +    case "$1" in
> +       -h|--help)
> +           display_usage
> +           exit 0
> +           ;;
> +
> +       -f|--file)
> +           if test x$2 = x; then
> +               >&2 display_usage
> +               exit 1
> +           fi
> +           display_file_name=$2
> +           shift
> +           ;;
> +
> +       -q|--quiet)
> +           be_quiet=yes
> +           shift
> +           ;;
> +
> +       --show-no-spdx)
> +           if test x$2 = x; then
> +               >&2 display_usage
> +               exit 1
> +           fi
> +           show_no_spdx=yes
> +           display_file_name=$2
> +           shift
> +           ;;
> +
> +       *)
> +           break
> +           ;;
> +    esac
> +done
> +
> +if test $# -lt 1; then
> +    >&2 display_usage
> +    exit 1
> +fi
> +
> +file=$1
> +
> +main
> --
> 1.8.3.1
>
>
> --
>                 Dodji
>

Signed-off-by: Giuliano Procida <gprocida@google.com>