Add masOS compatibility for 'sed' usage in scripts

Signed-off-by: Philip Schmid <philip.schmid@isovalent.com>

api/export-doc.sh

@@ -15,15 +15,20 @@ cp v1/README.md $TMP_FILE
 
 # cleanup the generated documentation for the website
 # remove the link to the top of the page
-sed -i '/<p align="right"><a href="#top">Top<\/a><\/p>/d' $TMP_FILE
-sed -i '/<a name="top"><\/a>/d' $TMP_FILE
+sed -i'' -e '/<p align="right"><a href="#top">Top<\/a><\/p>/d' $TMP_FILE
+sed -i'' -e '/<a name="top"><\/a>/d' $TMP_FILE
 # remove title
-sed -i '/^# Protocol Documentation/d' $TMP_FILE
+sed -i'' -e '/^# Protocol Documentation/d' $TMP_FILE
 # remove table of content
-sed -i -e '/## Table of Contents/,/##/{//!d}' $TMP_FILE
-sed -i '/^## Table of Contents/d' $TMP_FILE
+sed -i'' -e '/## Table of Contents/,/##/{//!d;}' $TMP_FILE
+sed -i'' -e '/^## Table of Contents/d' $TMP_FILE
 # cleanup unecessary consecutive whitelines
-sed -i '/^[[:space:]]*$/N;/^[[:space:]]*\n[[:space:]]*$/D' $TMP_FILE
+sed -i'' -e '/^[[:space:]]*$/N;/^[[:space:]]*\n[[:space:]]*$/D' $TMP_FILE
+# remove empty line at the end of the file (required for macOS, doesn't harm on Linux)
+sed -i'' -e '${/^$/d;}' $TMP_FILE
+
+# Cleanup backup file that might be created by macOS sed:
+rm ${TMP_FILE}-e 2>/dev/null || true
 
 # add a frontmatter and a small introduction
 echo '---
@@ -43,4 +48,3 @@ The Tetragon API is an independant Go module that can be found in the Tetragon
 repository under [api](https://github.com/cilium/tetragon/tree/main/api). The
 version 1 of this API is defined in
 [github.com/cilium/tetragon/api/v1/tetragon](https://github.com/cilium/tetragon/tree/main/api/v1/tetragon).' | cat - $TMP_FILE > $1
-

docs/content/en/docs/reference/grpc-api.md

@@ -992,4 +992,3 @@ Determins the behaviour of a field filter
 | <a name="bool" /> bool |  | bool | boolean | boolean | bool | bool | boolean | TrueClass/FalseClass |
 | <a name="string" /> string | A string must always contain UTF-8 encoded or 7-bit ASCII text. | string | String | str/unicode | string | string | string | String (UTF-8) |
 | <a name="bytes" /> bytes | May contain any arbitrary sequence of bytes. | string | ByteString | str | []byte | ByteString | string | String (ASCII-8BIT) |
-

install/kubernetes/export-doc.sh

@@ -18,18 +18,22 @@ cp "$TETRAGON_CHART/README.md" $TMP_FILE
 
 # cleanup the generated documentation for the website
 # remove the title
-sed -i '/^# tetragon$/d' $TMP_FILE
+sed -i'' -e '/^# tetragon$/d' $TMP_FILE
 # remove the badges
-sed -i '/^\!\[Version:/d' $TMP_FILE
+sed -i'' -e '/^\!\[Version:/d' $TMP_FILE
 # remove the "Helm chart for Tetragon mention"
-sed -i '/^Helm chart for Tetragon$/d' $TMP_FILE
+sed -i'' -e '/^Helm chart for Tetragon$/d' $TMP_FILE
 # remove unnecessary line
-sed -i '/^----------------------------------------------$/d' $TMP_FILE
+sed -i'' -e '/^----------------------------------------------$/d' $TMP_FILE
 # remove autogenerated copyright
-sed -i '/^Autogenerated from chart metadata using \[helm-docs /d' $TMP_FILE
+sed -i'' -e '/^Autogenerated from chart metadata using \[helm-docs /d' $TMP_FILE
 # cleanup unecessary consecutive whitelines
-sed -i '/^[[:space:]]*$/N;/^[[:space:]]*\n[[:space:]]*$/D' $TMP_FILE
+sed -i'' -e '/^[[:space:]]*$/N;/^[[:space:]]*\n[[:space:]]*$/D' $TMP_FILE
+# remove empty line at the end of the file (required for macOS, doesn't harm on Linux)
+sed -i'' -e '${/^$/d;}' $TMP_FILE
 
+# Cleanup backup file that might be created by macOS sed:
+rm ${TMP_FILE}-e 2>/dev/null || true
 
 # add a frontmatter and a small introduction
 echo '---
@@ -43,7 +47,7 @@ This page was generated with github.io/cilium/tetragon/install/kubernetes/tetrag
 please do not edit directly.
 {{< /comment >}}
 
-The Tetragon Helm chart source is available under 
+The Tetragon Helm chart source is available under
 [github.io/cilium/tetragon/install/kubernetes/tetragon](https://github.com/cilium/tetragon/tree/main/install/kubernetes/tetragon)
 and is distributed from the Cilium helm charts repository [helm.cilium.io](https://helm.cilium.io).