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Diffstat (limited to 'functions.sh')
| -rw-r--r-- | functions.sh | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/functions.sh b/functions.sh index 7e09611..9336174 100644 --- a/functions.sh +++ b/functions.sh @@ -48,6 +48,48 @@ chdir() } # +# Considers the first parameter as an URL then attempts to fetch it with either +# curl(1) or wget(1). If the URL does not contain a scheme then the https:// +# scheme shall be presumed. Both utilities shall be invoked in a manner that +# suppresses all output unless an error occurs, and whereby HTTP redirections +# are honoured. Upon success, the body of the response shall be printed to the +# standard output. Otherwise, the return value shall be greater than 0. +# +fetch() +{ + if hash curl 2>/dev/null; then + fetch() + { + if [ "$#" -gt 0 ]; then + # Discard any extraneous parameters. + set -- "$1" + fi + curl -f -sS -L --connect-timeout 10 --proto-default https -- "$@" + } + elif hash wget 2>/dev/null; then + fetch() + { + if [ "$#" -gt 0 ]; then + # Discard any extraneous parameters. + case $1 in + ''|ftp://*|ftps://*|https://*) + set -- "$1" + ;; + *) + set -- "https://$1" + esac + fi + wget -nv -O - --connect-timeout 10 -- "$@" + } + else + warn "fetch: this function requires that curl or wget to be installed" + return 127 + fi + + fetch "$@" +} + +# # Determines whether the current shell is a subprocess of portage. # from_portage() |