Programming Forums > Script Programming > Bash / Shell Scripting

iradic · Oct 21st, 2006, 1:44 PM

I wrote a script to generate makefiles...

And it works but not always

Here is some info output...

This shouldn't happen:

$ mage.sh -u *.c > Makefile 
Makefile -> /tmp/.mage.sh.432.mak
1
new file: dlist.c
1
new file: filter.c
1
new file: getaline.c
1
new file: hash.c
1
new file: main.c
1
new file: memdbg.c
1
new file: parser.c

This is ok:

(Toggle Plain Text)

$ mage.sh -u *.c            
Makefile -> /tmp/.mage.sh.1120.mak
0
old file: dlist.c
0
old file: filter.c
0
old file: getaline.c
0
old file: hash.c
0
old file: main.c
0
old file: memdbg.c
0
old file: parser.c

And this is the guilty part of script (I think):

(Toggle Plain Text)

UpdateNew () {
    # updates include only cc stuff
    for file in $(echo "$1" | sed 's/:/ /g') ; do
	if [ ! -r "$file" ]; then
		Warn "Could not open - '$file'"
		continue
	fi
	if $(grep -q '^'${file%.*}'[$](OBJ):' "${tmp}.mak"); then
	  echo $? 1>&2
	  Notify "old file: $file"
	  old="$old$file:"
	else
	  echo $? 1>&2
	  Notify "new file: $file"
	  new="$new$file:"
	fi
    done
    MkDepend "$old"
    EmitCC "$new"
}

Note that script works when not redirecting???
How should I fix this?

Thanks

Ooops, I just noticed that when not redirecting to Makefile (which is copied in the first place) everything works... Anyway can I fix this behavior?

iradic · Oct 21st, 2006, 3:57 PM

And here is some more "funny" stuff...

Bash debug output:

(Toggle Plain Text)

$ cp copy Makefile

$ mage.sh -u *.c > new
Makefile -> /tmp/_mage.sh.1144.mak
++ grep -q '^dlist[$](OBJ):' /tmp/_mage.sh.1144.mak
+ echo 0
0
+ set +o xtrace
old file: dlist.c
++ grep -q '^filter[$](OBJ):' /tmp/_mage.sh.1144.mak
+ echo 0
0
+ set +o xtrace
old file: filter.c
++ grep -q '^getaline[$](OBJ):' /tmp/_mage.sh.1144.mak
+ echo 0
0
+ set +o xtrace
old file: getaline.c
++ grep -q '^hash[$](OBJ):' /tmp/_mage.sh.1144.mak
+ echo 1
1
+ set +o xtrace
new file: hash.c
++ grep -q '^main[$](OBJ):' /tmp/_mage.sh.1144.mak
+ echo 0
0
+ set +o xtrace
old file: main.c
++ grep -q '^memdbg[$](OBJ):' /tmp/_mage.sh.1144.mak
+ echo 0
0
+ set +o xtrace
old file: memdbg.c
++ grep -q '^parser[$](OBJ):' /tmp/_mage.sh.1144.mak
+ echo 0
0
+ set +o xtrace
old file: parser.c

$ cp copy Makefile

$ mage.sh -u *.c > Makefile
Makefile -> /tmp/_mage.sh.996.mak
++ grep -q '^dlist[$](OBJ):' /tmp/_mage.sh.996.mak
+ echo 1
1
+ set +o xtrace
new file: dlist.c
++ grep -q '^filter[$](OBJ):' /tmp/_mage.sh.996.mak
+ echo 1
1
+ set +o xtrace
new file: filter.c
++ grep -q '^getaline[$](OBJ):' /tmp/_mage.sh.996.mak
+ echo 1
1
+ set +o xtrace
new file: getaline.c
++ grep -q '^hash[$](OBJ):' /tmp/_mage.sh.996.mak
+ echo 1
1
+ set +o xtrace
new file: hash.c
++ grep -q '^main[$](OBJ):' /tmp/_mage.sh.996.mak
+ echo 1
1
+ set +o xtrace
new file: main.c
++ grep -q '^memdbg[$](OBJ):' /tmp/_mage.sh.996.mak
+ echo 1
1
+ set +o xtrace
new file: memdbg.c
++ grep -q '^parser[$](OBJ):' /tmp/_mage.sh.996.mak
+ echo 1
1
+ set +o xtrace
new file: parser.c

I have put script in the attachment.

iradic · Oct 22nd, 2006, 1:08 PM

I figured it out...

Makefile gets truncated if redirected to it before script is run (and Makefile copied)...

Bye

Oct 21st, 2006, 1:44 PM	#1
iradic Programmer Join Date: Feb 2006 Posts: 36 Rep Power: 0	Bash scirpt help (msys)? I wrote a script to generate makefiles... And it works but not always Here is some info output... This shouldn't happen: (Toggle Plain Text) $ mage.sh -u .c > Makefile Makefile -> /tmp/.mage.sh.432.mak 1 new file: dlist.c 1 new file: filter.c 1 new file: getaline.c 1 new file: hash.c 1 new file: main.c 1 new file: memdbg.c 1 new file: parser.c $ mage.sh -u .c > Makefile Makefile -> /tmp/.mage.sh.432.mak 1 new file: dlist.c 1 new file: filter.c 1 new file: getaline.c 1 new file: hash.c 1 new file: main.c 1 new file: memdbg.c 1 new file: parser.c This is ok: (Toggle Plain Text) $ mage.sh -u .c Makefile -> /tmp/.mage.sh.1120.mak 0 old file: dlist.c 0 old file: filter.c 0 old file: getaline.c 0 old file: hash.c 0 old file: main.c 0 old file: memdbg.c 0 old file: parser.c $ mage.sh -u .c Makefile -> /tmp/.mage.sh.1120.mak 0 old file: dlist.c 0 old file: filter.c 0 old file: getaline.c 0 old file: hash.c 0 old file: main.c 0 old file: memdbg.c 0 old file: parser.c And this is the guilty part of script (I think): (Toggle Plain Text) UpdateNew () { # updates include only cc stuff for file in $(echo "$1" \| sed 's/:/ /g') ; do if [ ! -r "$file" ]; then Warn "Could not open - '$file'" continue fi if $(grep -q '^'${file%.}'[$](OBJ):' "${tmp}.mak"); then echo $? 1>&2 Notify "old file: $file" old="$old$file:" else echo $? 1>&2 Notify "new file: $file" new="$new$file:" fi done MkDepend "$old" EmitCC "$new" } UpdateNew () { # updates include only cc stuff for file in $(echo "$1" \| sed 's/:/ /g') ; do if [ ! -r "$file" ]; then Warn "Could not open - '$file'" continue fi if $(grep -q '^'${file%.}'[$](OBJ):' "${tmp}.mak"); then echo $? 1>&2 Notify "old file: $file" old="$old$file:" else echo $? 1>&2 Notify "new file: $file" new="$new$file:" fi done MkDepend "$old" EmitCC "$new" } Note that script works when not redirecting??? How should I fix this? Thanks Ooops, I just noticed that when not redirecting to Makefile (which is copied in the first place) everything works... Anyway can I fix this behavior?

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Oct 22nd, 2006, 1:08 PM	#3
iradic Programmer Join Date: Feb 2006 Posts: 36 Rep Power: 0	I figured it out... Makefile gets truncated if redirected to it before script is run (and Makefile copied)... Bye

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Programming Forums > Script Programming > Bash / Shell Scripting

Bash scirpt help (msys)?