6e27a84071
Problem: msbuild uses timestamps to determine what needs to be rebuilt, and git doesn't track files' last modified time, so everything is always fully rebuilt. Solution: This commit adds an sqlite database that tracks C/C++ files and their md5 hashes. If a file's hash hasn't changed, then it doesn't need to be rebuilt, so its last modified time is backdated 20 years. The 20 years is an arbitrarily chosen amount of time and has no special significance.
32 lines
1.3 KiB
Bash
Executable file
32 lines
1.3 KiB
Bash
Executable file
#!/bin/bash
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DBFILE="$1"
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if [ "$DBFILE" == "" ]; then
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echo "No database file provided!"
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exit 1
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fi
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sqlite3 $DBFILE "create table if not exists FILES(NAME VARCHAR(1000) PRIMARY KEY, MD5 VARCHAR(32), OLD_MD5 VARCHAR(32) DEFAULT '-')"
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for file in $(find . -type f | grep '\.c$\|\.cpp$\|\.h$\|\.hpp$\|\.ipp$\|\.tpp$\|\.ii' | cut -c 3-); do
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newhash=`md5sum "$file" | cut -d" " -f1`
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oldhash=`sqlite3 "$DBFILE" "select MD5 from FILES where NAME = '"$file"'"`
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if [ "$oldhash" == "" ]; then
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sqlite3 "$DBFILE" "insert into FILES(NAME, MD5) values('$file', '$newhash')"
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printf '%-15s %-60s has %-32s\n' "new file:" "$file" "$newhash"
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elif [ "$oldhash" != "$newhash" ]; then
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sqlite3 "$DBFILE" "update FILES set OLD_MD5 = MD5, MD5 = '$newhash' where NAME = '$file'"
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printf '%-15s %-60s had %-32s %-13s %-32s\n' "changed file:" "$file" "$oldhash" "and now has" "$newhash"
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else
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printf '%-15s %-60s had %-32s %-13s %-32s\n' "unchanged file:" "$file" "$oldhash" "and still has" "$newhash"
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touch -d "20 years ago" "$file"
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fi
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done
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for file in `sqlite3 "$DBFILE" "select NAME from FILES"`; do
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file=`echo "$file" | tr -d '\r'`
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if [ ! -f "$file" ]; then
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printf '%-15s %-60s\n' "File removed:" "$file"
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sqlite3 "$DBFILE" "delete from FILES where NAME = '$file'"
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fi
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done
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