gcc-wwwdocs branch master updated. 38ca21a31d68e73189d602c5cfafea6becd7f27b

gcc-wwwdocs branch master updated. 38ca21a31d68e73189d602c5cfafea6becd7f27b

[Gerald Pfeifer]

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- Log -----------------------------------------------------------------
commit 38ca21a31d68e73189d602c5cfafea6becd7f27b
Author: Gerald Pfeifer <gerald@pfeifer.com>
Date:   Fri May 19 15:10:55 2023 +0200

    preprocess: Check whether input files exist
    
    This has not come up in all those years since the preprocess script
    usually is invoked from other scripts, notably post commit hooks. It
    can, however, be invoked manually, and error handling is generally a
    good thing.
    
    Instead of
       cat: foo/bar/index.html: No such file or directory
       New file /www/gcc/htdocs/foo/bar/index.html
    and an empty output file, we now get
       Input file foo/bar/index.html not found.
    when invoking `preprocess foo/bar/index.html`.

diff --git a/bin/preprocess b/bin/preprocess
index c62ba457..c6d34c4b 100755
--- a/bin/preprocess
+++ b/bin/preprocess
@@ -155,6 +155,11 @@ process_file()
     # Strip possibly leading "./".
     f=`echo $1 | sed -e 's#^\./##'`
 
+    if [ ! -f "$SRCTREE/$f" ]; then
+        echo "Input file $f not found."
+        return
+    fi
+
     if [ ! -d "$DESTTREE/`dirname $f`" ]; then
         echo "Creating new directory `dirname $f`."
         mkdir -p $DESTTREE/`dirname $f`

-----------------------------------------------------------------------

Summary of changes:
 bin/preprocess | 5 +++++
 1 file changed, 5 insertions(+)


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