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author | Lumir Balhar <lbalhar@redhat.com> | 2021-03-22 13:13:57 +0100 |
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committer | Jani Välimaa <wally@mageia.org> | 2021-09-07 20:05:56 +0300 |
commit | ea6fa118f65238c72bee642c7ce60c8b864b6179 (patch) | |
tree | 9d1471ef4b969928e60bad46802919687a7a330a /brp-mangle-shebangs | |
parent | 6e4702d2c1b6e7b86a549abb671e35db59c4238e (diff) | |
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Fix handling of files without newlines in brp-mangle-shebang
If the file we are trying to mangle a shebang in has
0 lines (as reported by `wc`) `read` command fails
to read the first line and the script fails silently.
Text files without newlines should not be executable as there
is no way for them to contain a shebang.
Signed-off-by: Jani Välimaa <wally@mageia.org>
Diffstat (limited to 'brp-mangle-shebangs')
-rwxr-xr-x | brp-mangle-shebangs | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/brp-mangle-shebangs b/brp-mangle-shebangs index 4964c09..ef85ee4 100755 --- a/brp-mangle-shebangs +++ b/brp-mangle-shebangs @@ -93,7 +93,14 @@ while IFS= read -r line; do fi - read shebang_line < "$f" ||: + if ! read shebang_line < "$f"; then + echo >&2 "*** WARNING: Cannot read the first line from $f, removing executable bit" + ts=$(stat -c %y "$f") + chmod -x "$f" + touch -d "$ts" "$f" + continue + fi + orig_shebang="${shebang_line#\#!}" if [ "$orig_shebang" = "$shebang_line" ]; then echo >&2 "*** WARNING: $f is executable but has no shebang, removing executable bit" |